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© 2020 Nippon Denko Co., Ltd. April 2020 zX Nippon Denko Compendium 2020

Nippon Denko Compendium 2020 · Resource strategy and optimal location are the way to win out

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  • © 2020 Nippon Denko Co., Ltd.

    April 2020

    zX

    Nippon Denko Compendium 2020

  • © 2020 Nippon Denko Co., Ltd. zX

    Functional Materials

    Environment

    Electric Power

    ■ Research and Development

    Contents

    ■ Company Overview

    Ferroalloys

    Company Overview

    Business sectors and products

    History

    What are ferroalloys?

    Ferroalloys, materials essential to steel

    How are ferroalloys made?

    Global crude steel production in each country and ferroalloyproduction by productFerroalloy production in Japan: Ferromanganese is produceddomesticallyFerroalloy raw material: Global production and trade inmanganese oreFerroalloy market prices and manganese ore prices

    Business strategy of Nippon Denko

    Ferroalloys business

    SLP ferromanganese

    Resource strategy and optimal location are the way to win out over rivalsKudumane manganese mining area

    Functional materials products

    Cathode material for lithium ion batteries

    Metal hydride alloys

    Ferro boron

    Manganese inorganic chemical products

    Zirconium oxide

    Zirconium oxide ~ Expanding application to new fields ~

    What are environmental recycling systems?

    Melting and Solidification of Incineration Ash in Electric Furnace

    Electric power businesses

    Research and Development

    3

    4

    5

    7

    8

    9

    10

    11

    12

    13

    15

    15

    16

    18

    19

    20

    21

    22

    23

    24

    26

    27

    29

    31

    1

  • © 2020 Nippon Denko Co., Ltd. zX

    Company Overview

    2

  • © 2020 Nippon Denko Co., Ltd. zX

    Established

    Head Office

    Employees

    Business

    Group Affiliates

    Scale : Consolidated

    Stock

    October 1925

    1-4-16, Yaesu, Chuo-ku, Tokyo

    957 : Consolidated / 480 : Non-consolidated

    7 domestic, 2 overseas affiliates

    (FY 2019)

    (As of December 31, 2019)

    Ferroalloys / Functional Materials / Environment / Electric Power

    Net sales 70,477Total assets 85,224Owner’s equity 54,609Capital 11,042Interest-bearing Liabilities 13,987

    mil. yen

    Tokushima Plant: Ferroalloys and Functional materialsResearch Laboratory

    Toyama Plant (Imizu area): Functional materials

    Hidaka Plant: ElectricityHoromangawa Hydroelectric Power Plant

    Koriyama Plant: Environmental recycling systems

    Tokyo Head Office

    Toyama Plant (Takaoka area): Functional materials

    Head Office, Manufacturing Bases

    Kashima Plant: Ferroalloys and Melting solidification of incineration ash

    Myoko Plant: Functional materials

    3

    Company Overview (As of December 31, 2017)

    Company Overview

    Outstanding shares 146,568,067

    Kudumane Investment Holding (Hong Kong)

    Overseas Affiliates

    Pertama Ferroalloys(Malysia)

  • © 2020 Nippon Denko Co., Ltd. zX

    Ferroalloys Ferroalloys Steel, stainless steel, and specialty steel

    Functional Materials

    Cathode material for Li-ion batteries

    Metal hydride alloys

    Ferroboron

    Zirconium oxide

    Boron oxide, boric acid

    Manganese inorganic chemical products

    Lithium-ion batteries

    Nickel-metal hydride cells

    Neodymium magnets, amorphous metals, Electronic parts

    optical lenses glass, surface treatment

    Supplements, additives for laminated ceramic capacitors, etc.

    Environment

    Chromic recovery, boron recovery,nickel recovery, water and wastewatertreatment facilities, Melting and solidification of incineration ash in electric furnaces

    Surface treatment, electronic parts, automobile parts,industrial waste disposal plantsLocal governments and companies discharging industrial waste

    Electric Power Electric power Power companies

    Business Sectors and Products

    4Company Overview

    Sector Typical Products Markets

  • © 2020 Nippon Denko Co., Ltd. zX 5

    History

    Company Overview

    1925 Ogaki Denki Yakin Kogyosho Co., Ltd. (later Nippon Denki Yakin Co., Ltd.) established, begins production and sale of various ferroalloys

    1963 Nippon Denko Co., Ltd. formed with merger of Nippon Denki Yakin Co., Ltd. and Toho Denka Co., Ltd.

    1969 Tokushima Plant built, begins operation (equipped with pier facilities and large electric furnace)

    1970 Completed first electric furnace (40,000 KVA) at Kashima Plant.

    1976 Began producing manganese inorganic chemical products at Taguchi Plant (current Myoko Plant)

    1984 Begins production and sale of ferroboron using an electric furnace

    1989 Begins production and sale of zirconium oxide

    1996 ■ Begins sale of AQUA PACK cartridge-type demineralizer

    1999 ■ Begins sale of MR-PACK pure water production unit

    2000Completes expansion of ferroboron production facility Completes new zirconium oxide plant

    ■ Completes construction of boron recovery facility

    2002■ Starts up nickel recovery and recycling■ Completed construction of waste melting furnace (EM1) at Kashima Plant and began treatment of industrial waste and special industrial waste.

    2003 Acquires lithium manganese battery materials business

    2004■ Starts fluorine and phosphorus recovery and recycling business / Begins delivery of pure water production units for fuel cell use■ Completed construction of waste melting furnace (EM2) at Kashima Plant.

    2005 Installs an in-house power generator making use of gas from the electric furnace at the Tokushima Plant

    2010 Completes first stage of large-scale plant for automotive battery materials

    2011 Completes second stage of large-scale plant for automotive battery materials

    2012 Invests in Pertama Ferroalloys Sdn. Bhd.

    2013Acquires manganese mining interests in South Africa

    ■ Obtained approval for soil decontamination at Kashima Plant.

    2014 Changes Japanese name upon merger with Chuo Denki Kogyo Co., Ltd. (English name unchanged)

    2014 ■ Received facility accreditation under the Japanese government’s Feed-In Tariff (FIT) scheme for renewable energy sources

    2018Merged with Chuo Denki Kogyo Co.,Ltd. Completely

    ■ Completed construction of waste melting furnace (EM3) at Kashima Plant.Begins the contract manufacturing of cathode materials for lithium-ion batteries asked from Sumitomo Metal Mining at Toyama Plant (Takaoka area)

    2019 ■ Begins the operations at Horoman-gawa No. 3 Power Plant

    Ferroalloys

    Functional Materials

    ■ Environment

    ■ Electric Power

  • © 2020 Nippon Denko Co., Ltd. zX

    Ferroalloys

    6

    zX

  • © 2020 Nippon Denko Co., Ltd. zX

    Iron ore

    Limestone

    Coal

    Ferromanganese (main product)Silicomanganese

    Make steel stronger

    Ferrovanadium Oil well casings, line pipes, springs

    Ferrochrome Stainless steel products

    Ferrosilicon Deoxidizing

    Typical ferroalloy products and applications

    Ferroalloys are of vital importance in making steel, as they are a necessary “seasoning” found in every piece of steel.

    Steelmaking process

    Completion as steel

    Converter furnace

    Blast furnace

    Coke

    Sinter

    Ferroalloys market scale (2019)

    Trading takes place at a price calculated by converting the global price in US dollars to yen at foreign exchange rates.(Similar to the export industry, the profit structure is such that a

    Nippon Denko main product:Ferromanganese In Japan, approx. 447 billion yen

    (Source: Nippon Denko estimate)

    They make steel stronger and tougher, as well as more resistant to heat and corrosion.

    ▼ Ferroalloys

    ▼ Nippon Denko

    7

  • © 2020 Nippon Denko Co., Ltd. zX

    Melts at very high temperatures.

    Our main product, high-carbon ferromanganese

    8

    Note: Slag is a by-product occurring in the process of manufacturing metal.

    Slag

    Exhaust gas is used as fuel for in-house power generation.

    Metal from electric furnace

    After cooling, becomes a product

    Manganese ore imported from various countries is refined using optimal blending techniques. Saves electricity and other energy.

    Main raw materials

    High-carbon ferromanganese is a ferromanganese product having a relatively high amount of carbon.

    High-carbon ferromanganese

    Nippon Denko has the

    No. 1 sharein Japan

    Made by steaming and baking coal. Acting as a reducing agent, removes oxygen in the ore.

  • © 2020 Nippon Denko Co., Ltd. zX 9

    Global crude steel production Global ferroalloy production

    823 799 808 832923

    996

    111 105 105105

    10499169 166 162

    168

    168159106

    101 102102

    101100

    121111 111

    116

    121120

    4544 40

    44

    4541

    280280 287

    294

    310319

    400

    600

    800

    1,000

    1,200

    1,400

    1,600

    1,800

    2,000

    '14 '15 '16 '17 '18 '19China Jpn EU CIS N.America S.America Africa Others

    (mil.tons)

    (Source: WSA data)

    4,583 3,997 3,781 4,270 4,386 4,436

    1,647 1,498 1307 1595 1644 1435

    13,06411,719 12,625

    13,93215,826

    17,975

    11,590

    11,494 11,846

    13,296

    14,322

    14,726

    0

    5,000

    10,000

    15,000

    20,000

    25,000

    30,000

    35,000

    40,000

    '14 '15 '16 '17 '18 '19HcFeMn M・Lc-FeMn SiMn FeCr

    (1,000 tons)

    (Source: IMnI data [FeMn and SiMn]; ICDA data [FeCr]; USGS data [others])

  • © 2020 Nippon Denko Co., Ltd. zX

    0.0

    20.0

    40.0

    60.0

    80.0

    100.0

    '14 '15 '16 '17 '18 '19

    Crude steel production(mil. tons)

    (Source: Steel statistics )(Source: Steel statistics, Nippon Denko estimates)

    (%)

    Trends in ferroalloy production and imports, and crude steel production (Japan)

    10

    Percentage of ferroalloys produced domestically

    Ferrochrome

    Ferromanganese

    Silicomanganese

    Ferroalloy production

    Ferroalloy importsCrude steel production

    Ferroalloy production and imports(1,000 tons)

    0

    500

    1,000

    1,500

    2,000

    2,500

    3,000

    '14 '15 '16 '17 '18 '190

    25

    50

    75

    100

    125Crude steel production

    Ferroalloy production

    Ferroalloy imports

  • © 2020 Nippon Denko Co., Ltd. zX

    SouthAfrica71%

    Gabon6%

    Austral ia23% South

    Africa39%

    Australia15%

    Coted'Ivoire

    2%Malaysia

    4%

    Gahna15%

    Gabon10%

    Brazil9%

    Others5%

    Other10%

    Ukrain4%

    Brazil5%

    India5%

    Ghana8%

    Australia14%

    Gabon9%

    SouthAfrica31%

    China14%

    Processing low-grade ore results in a large amount of slag,for a low metal recovery rate.

    Less slag is produced than with low-grade ore,so the metal recovery rate is higher.

    ( Source: IMnI data )

    (Source: IMnI data)

    Global production of manganese ore

    China

    Australia

    Gabon

    South Africa

    Brazil

    Japan’s manganese ore imports

    (Source: Ministry of Finance customs data)

    Chinese manganese ore import volume

    (Source: China Customs data)

    China’s manganese ore imports

    11

    10.0

    15.0

    20.0

    25.0

    30.0

    35.0

    '12 '13 '14 '15 '16 '17 '18 '19

    (mil. tons)

  • © 2020 Nippon Denko Co., Ltd. zXSource: Metals Week [US market]; Metal Bulletin [European market]

    12

    Product price (quarterly average) Product prices and ore prices

    FMnH(Eur) 1,042 1,044 984 902 823 819 836 724 685 745 762 1,118 1,387 1,367 1,443 1,322 1,349 1,257 1,133 1,151 1,207 1,200 1,091 987

    FMnH(US) 1,073 1,075 1,053 1,050 1,034 937 861 830 785 824 840 1,085 1,439 1,439 1,537 1,537 1,556 1,560 1,424 1,354 1,344 1,373 1,368 1,167

    Mn ore 5.5 4.7 4.5 4.5 4.2 3.2 3.2 2.8 2.1 3.7 3.6 7.6 7.0 5.3 6.5 6.7 7.4 7.9 7.1 7.5 7.0 6.7 6.1 4.6

    '19'17'16'15 '18’14

    0

    200

    400

    600

    800

    1,000

    1,200

    1,400

    1,600

    1,800

    '11 '12 '13 '14 '15 '16 '17 '18 '19

    High-carbon ferromanganeseEuropean market

    High-carbon ferromanganeseUS market($/t)

    0.00

    1.00

    2.00

    3.00

    4.00

    5.00

    6.00

    7.00

    8.00

    9.00

    0

    200

    400

    600

    800

    1000

    1200

    1400

    1600

    1800

    '11 '12 '13 '14 '15 '16 '17 '18 '19

    High-carbon ferromanganese(Europe)

    Manganese ore($/t) ($/Mn%)

    Transition list (FMnH & Mn Ore) FMnH ($/t) / Mn Ore ($/Mn%)

    Sheet1

     '02 '03 '04 '05 '07 '08'09'10'12’14'15'16'17'18'19

    FMnH(Eur)4394555155265645975675777771,4161,5081,3541,1797626226098731,0621,3641,6292,1663,0772,9032,4911,4921,1571,0981,3141,3231,4351,4891,5281,1601,2531,1381,1131,0421,0449849028238198367246857457621,1181,3871,3671,4431,3221,3491,2571,1331,1511,2071,2001,091987

    FMnH(US)4394495355345024804635279231,7051,4881,1307966145266229381,2491,6641,7602,3583,2403,1792,2261,3329271,1581,4101,4051,5001,3431,3581,2201,2981,2271,1821,0731,0751,0531,0501,0349378618307858248401,0851,4391,4391,5371,5371,5561,5601,4241,3541,3441,3731,3681,167

    FV6.38.38.38.011.311.811.111.521.626.220.638.962.7113.553.453.434.239.437.437.368.372.464.240.524.819.931.523.728.532.529.029.9252624253228262525272525222118131518182225273939626986

    Mn ore5.54.74.54.54.23.23.22.82.13.73.67.67.05.36.56.77.47.97.17.57.06.76.14.6

    Sheet2

    Sheet3

  • © 2020 Nippon Denko Co., Ltd. zX

    ■ Others

    ■ Ferrovanadium

    ■ High-carbonferromanganese

    High-carbon ferromanganese is our company’s main product. It is produced domestically, taking advantage of the competitiveness of the Tokushima and Kashima Plant.

    ■ SLP Ferromanganese(our product name)

    The product has a very high manganese content with few impurities. It is used as an additive in the final stage of steelmaking, in place of manganese metal. (see p. 14)

    Manganese metal: A metal with a manganese purity of nearly 100%. It is used as an additive in making steel, stainless steel, and aluminum.

    ■ Silicomanganese

    13

    1614 17

    13 1518

    56 6268 76 73

    69

    7 4 310

    4 5

    2 11367

    0%

    20%

    40%

    60%

    80%

    100%

    '14 '15 '16 '17 '18 '19

    Trends in percentage of each alloy in Nippon Denko ferroalloys sales

  • © 2020 Nippon Denko Co., Ltd. zX

    High-purity ferromanganese is being manufactured by means of original technology using as raw material a by-product of high-carbon ferromanganese.

    Demand will rise further with increased production of high-grade steel.

    An electric furnace was added in 2008. Production capacity was raised from 18,000 tons to 30,000 tons annually.

    In 2010, further expansions raised annual production capacity from 30,000 tons to 40,000 tons.

    We are helping to ensure stable procurement by users and increase our earning power.

    ▲ SLP Ferromanganese

    What is SLP ferromanganese?(SLP: Super-low phosphorus)

    14

    020406080

    100120140160180

    '14 '15 '16 '17 '18 '19

    (10,000 tons) Chinese production and exports of manganese metal

    Production Exports

    Very low-carbon ferromanganese with manganese purity of 90% and low phosphorus content.

    As a raw material essential to high-grade steel production, it is used in place of manganese metal.

    Superiority

    Strategy

    Annual demand for manganese metal in Japan is about 50,000 tons, all of

    which is imported, some 90% of it from China.

    Because of the very high dependence on China, producing it in areas other

    than China or possibly switching to an alternative are options being

    considered.

    Manganese metal

    ( Source: IMnI data )

  • © 2020 Nippon Denko Co., Ltd. zX

    Grow stronger through best-location production

    15

    Silicomanganese, ferrosilicon, etc.

    Participate in Malaysian production

    Pertama Ferroalloys Sdn. Bhd. (Malaysia)

    MeasuresUse of low-cost electricity

    Domestic production in our top field: High-carbon ferromanganese

    Enable just-in-time supply by producing in domestic plants located near the sea

    Domestic Plant (Tokushima & Kashima), one of the world’s most competitive

    Obtaining stable supply of the ores needed for ferroalloy production

    • Acquired manganese mining interests Investment in Kudumane Investment Holding which invests to Kudumane Manganese Resources (South Africa)

    • Diversification of ore procurement sources

  • © 2020 Nippon Denko Co., Ltd. zX

    South32

    ASSMANG

    South32

    telele York

    HotazelKUDUMANE

    16

  • © 2020 Nippon Denko Co., Ltd. zX

    Functional Materials

    17

    zX

  • © 2020 Nippon Denko Co., Ltd. zX

    Cathode material for lithium ion batteries Cathode materials for lithium-ion batteries

    Metal hydride alloys Anode materials for nickel-hydrogen batteries

    Ferroboron

    For amorphous alloys Raw material of amorphous alloy (FeSiB)

    For magnets Raw material of neodymium iron boron (NdFeB) magnet alloy

    For steel Used as additive in steel as one kind of ferroalloy

    Manganese inorganic chemical products

    See p. 22 for details.

    Zirconium oxide

    For electronic ceramics Raw material of ceramic capacitors, PZT piezoelectric actuators etc.

    For glass Used as additive in high-refractive optical glass lenses, etc.

    For functional film Raw material of optical adjustment coating and hard coating materials, etc.

    Composite oxide for catalysts Catalytic promoter for purifying automobile exhaust gas

    Boron oxide, boric acidFor glass Used as additive in liquid crystal glass, optical glass, glass fiber, etc.

    Other applications Raw material of boron compounds, disinfectants, surface treatment agents, etc.

    Functional materials products Type and use

    18

  • © 2020 Nippon Denko Co., Ltd. zX

    Our Cathode materials for lithium-ion batteries Principle of lithium-ion batteries

    19

    Start commercial production in 1997

    The pioneers of cathode materials for large lithium-ion batteries

    ISO 9001 and ISO 14001 certified plants

    The contract manufacturing asked from Sumitomo Metal Mining

    Battery materials manufacturing plant (Takaoka, Toyama Prefecture)

    Main applications

    Large lithium-ion batteries for EV and HEV.

    Large lithium-ion batteries for Energy storage system.

  • © 2020 Nippon Denko Co., Ltd. zX

    NiOOH+MH Ni(OH)2+M

    20

    Metal hydride alloys ( Hydrogen storage alloys )

    1992 started commercial production.

    Global No.1 supplier of these alloys for use in hybrid car batteries employed in

    Toyota hybrid vehicles.

    ISO 9001 and ISO 14001 certified plant

    Features of Metal hydride alloys

    Long life span equivalent to vehicle life

    Ample output to ensure startability at low temperatures and power

    acceleration

    Metal hydride alloys plant (Myoko, Niigata Prefecture)

    Main applications

    Anode material for nickel-hydrogen batteries used as drive batteries in hybrid vehicles.

    Principle of nickel-hydrogen batteries

    Metal hydride alloys anode Nickel cathodeCharge

    Discharge

  • © 2020 Nippon Denko Co., Ltd. zX

    For amorphous alloys

    Amorphous (noncrystalline) alloy ribbons with thickness of just a few tens of microns are produced by extremely rapid cooling of Fe, Si, B, or other alloys from molten state, at a rate of around a million degrees C per second.

    Used mainly as the steel core material of amorphous transformersWhen amorphous alloys are used as steel core material in transformers, electrical (no-load) loss at the steel

    core is very small for improved energy efficiency.

    In China and India, where the electric power infrastructure is being put in place, adoption of energy-saving amorphous transformers is growing.

    In Japan the Top Runner energy efficiency program was applied to industrial transformers in April 2006.

    In the US, energy efficiency standards even stricter than Japan’s Top Runner program came into force in January 2010 applicable to distributiontransformers.

    Demand is expected to grow even further with the growing global trend toward energy efficiency.

    For magnets

    A neodymium iron boron (NdFeB) magnet is the strongest kind of permanent magnet. These magnets are essential to making smaller, lighter, and more efficient products from electronic devices to home appliances and automobiles, resulting in energy savings.

    Typical applications of NdFeB magnets Motors of hybrid vehicles and electric vehicles

    Head actuator mechanism for hard disk drive reading and writing

    Motors in energy-efficient appliances (air conditioners, etc.)

    Electrical generator in wind power system

    For steelAdding a very small amount (10 to 100 ppm) of boron to steel improves its hardenability and high-temperature strength.

    Typical applicationsWires used in suspension bridges, nuts and bolts, claws of power shovels

    Nippon Denko is the only ferroboron manufacturer outside of China.

    Product Description Use or typical applications

    21

    Crystalline Amorphous

    Amorphous alloy

    ▲ Amorphous transformer

  • © 2020 Nippon Denko Co., Ltd. zX 22

    Overview of manganese inorganic chemical products business Types and uses of manganese inorganic chemical products 1976 Started commercial production

    The only Japanese domestic manufacturer of diverse manganese inorganic

    chemical products

    ISO 9001 and ISO 14001 certified plants

    Kosher and FDA certified plant (manganese sulfate)

    Manganese inorganic chemical products manufacturing plant (Myoko, Niigata Prefecture)

    Features of manganese inorganic chemical products

    Holder of technology for high-purity refining of manganese ore

    Thorough removal of alkaline metals and alkaline earth metals by

    crystallization and recrystallization processes

    Thorough removal of iron by use of oxidizing agent and

    optimization of reaction pH

    Products Uses

    Manganese sulfate Animal feed additives, catalyst raw materials, supplements, fertilizers

    High-purity manganese sulfate Cathode materials for lithium-ion batteries

    Manganese carbonateAnimal feed additives, surface treatment agent raw materials, soft ferrite

    High-purity manganese carbonate Additive in laminated ceramic capacitors, thermistors

    Chemical manganese dioxideOzone decomposition catalysts, deodorizing catalysts, oxidizing agents for organic synthesis

    Reduced ore Flux

    Manganese sulfates Manganese carbonates

  • © 2020 Nippon Denko Co., Ltd. zX

    Electronic ceramics Glass and film

    This material is used in ceramic capacitors and ceramic filters in the electrical circuits of digital consumer electronics, PCs, mobile phones and other digital devices.It is also used in inkjet printers, for example in devices controlling ink spraying.Another application is for use in gyro sensors for preventing camera shake and for detecting smartphone tilt.

    Another use is in the optical lenses of digital cameras, and in films for liquid crystal displays.

    23

    What is zirconium oxide? Electronic ceramics, with zirconium oxide as raw material, have the electrical properties for storing electricity and converting between electricity and

    pressure.

    A high refractive index is achieved by using zirconium oxide as an additive in optical glass and functional film.

    Nippon Denko and zirconium oxide

    Began production at the Tokushima Plant in 1989

    Won acclaim for ultrafine particles and high purity

    Sold mainly for use in electronic parts and optical lenses

    Main applications and products

    Ceramic capacitors ▲ Inkjet printer

  • © 2020 Nippon Denko Co., Ltd. zX 24

    CeO2→ CeO2-x + X/2O2HC

    CONOX H2O

    CO2N2

    Its role is to store and release oxygen as oxidation and

    reduction reactions take place.

    Used in three way catalysts for automobile exhaust gas.

    Oxidation and reduction reactions remove pollutants

    from exhaust

    Oxygen storage Oxygen release

    Catalytic promoter for purifying automobile exhaust gas (ceria-zirconia)

    Zirconium oxide for functional film

    Mainly used as an optical adjustment coating material in functional films for touch panels.

    Zirconia properties High refractive index (highly

    transparent) High hardness Resistant to photocatalysts

    Development goals High dispersibility in solvent Primary particle diameter

    microscopically small and uniform

  • © 2020 Nippon Denko Co., Ltd. zX

    Environment

    25

    zX

  • © 2020 Nippon Denko Co., Ltd. zX 26Environment

    Purified water manufacturing for home-use fuel cells

    Use of home fuel cells as alternative energy is on the rise. Fuel cells generate electricity from hydrogen, which is extracted from a reaction between purified water and natural gas or other source. Drawing on a wealth of experience in ion exchange resin regeneration, we are building up our business in fuel cell-related fields.

    Having a large ion exchange resin recycling plant in Koriyama, Fukushima Prefecture, we rent and sell ion exchange towers which are water treatment equipment and perform resin regeneration on consignment.

    Purified water manufacturingfor hydrogen stations

    Hydrogen stations are being built as Toyota Motor begins commercial sale of fuel cell vehicles. We started manufacturing purified water equipment for hydrogen production in 2005 in preparation for the Aichi Expo, and we has the top share in Japan for hydrogen stations.

    Cartridge demineralizer・Simple and easy-to-use demineralizer filled with ion-

    exchange resin ・By simply connecting the unit directly to a faucet・Creates high-purity water by removing Ca, Na, SO4, CI,

    SiO2, etc., in tap water.

    Pure Water System that combines the reverse osmosis membrane (RO membrane) with the ion-exchange resin tower.・ Space-saving by a compact design ・ Easy to operate by automatic control・ Capable of presenting a product specifications in

    accordance with customers’ demand

    Flow sheet used (example)Features1. Reuse and resources recycling of Water,

    the medicine・Reuse waste water as deionized water or pure water・Recycling of the adsorbed ion

    2. Commissioned regeneration・Don’t need regeneration working or medicine on

    customer premises from treatment・No generation of sludge

    3. A variety of sale’s methods・Selectable from a rental or purchase system・Suggest the best method in consideration for a

    period of service, a work load, and funds for equipment

    ● Contribution to the hydrogen society

    Pure water production that pursue further purity

    AQUA PACK

    For washing of surface treatment For the water for boilers and air-conditioning For experiments and analysis For hydrogen production

    MR PACK

    TypeWater quality monitor

    Mini filter O or A TowerG Tower

    ① ③② ④

    ①Chrome plating solution tank ②Recovery tank ③Washing tank④Washing tank

    Clean Recycle System Pure Water Technology

    Ion exchange towers of wastewater treatment enabling the recovery of water and resources ND MINICHROPACK:various chromic other heavy metal・Various acid・Alkali waste waterB-CLEPACK:Boron removal NI-PACK: Nickel removalF-PACK: Fluorine removal

    Ferroboron

    Nickel alloy raw materials

    Road building materials・Various ion-exchange resins and

    adsorbents are regenerated.・Valuable materials are recovered.

    Koriyama Plant

    Remove hazardous substancesRecover water

  • © 2020 Nippon Denko Co., Ltd. zX 27Environment

    Dedicated carrier vehicles

    Incineration ash storage facility

    Incineration ash (collected from municipalities)

    Roadbed material

    Leveling material

    Material for river embankment work

    Valuable metals separated and collected at nonferrous smelter

    and refiner

    (ECOLAROCK)

    Applications

    • Roadbed material

    • Leveling material for solar panel installation

    • Embankment material for disaster recovery

    • Base material for river embankment work

    Ash hopper

    Sieve

    Ash melting furnace

    Chimney

    Ash

    Gas washing equipment

    Dust collector

    Metal

    Dry pit

    Slowly cooled slag

    Secondary burning vat

    Cooling tower

    Furnace-top ash hopper

    Elect-rodes

    SlagMetal

    Metalcaster

    ● Due to high-temperature melting and solidification, the treatment is able to break down dioxin and detoxify and stabilize heavy metals.

    ● The generated slag being of stable quality, it is sold for a wide range of uses as ECOLAROCK (registered trademark).

    ● Valuable metals (gold, silver, copper, etc.) contained in the molten metal are recycled and used.

    ■ Features● In 1995, Chuo Denki Kogyo became the first private company in Japan

    to begin treatment of incineration ash generated from municipalities by melting in a ferroalloy furnace.

    ● In 2002, a dedicated furnace was put into operation, and treatment of industrial waste was started.

    ● The processing capacity of the dedicated furnace was increased in 2013.● In 2018, the third dedicated furnace was put into operation.

    ■ History of business

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    Electric Power

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    Power generation facility Output Operation

    Horoman-gawaNo. 2 Power Plant 4,406kW Started from Nov, 2017

    Horoman-gawaNo. 3 Power Plant 6,222kW Started from Feb. 2019

    ■ Overview of electric power business● We built a hydroelectric power plant at Horoman-gawa River in Hokkaido in early Showa period for the pioneer of the development of the

    power supply in Hidaka area.● Renewed the power generation facilities at the No.2 and No.3 power plant.

    ● Transform business to the electricity sales taking advantage of feed-in tariff system.

    Horoman-dam

    No.3 Power Plant

    Horoman-gawa Hydroelectric Power Plants

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    Research and development

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    ■ R&D organization

    We organize research and development activities as "Search", "Product development" and "Process technology development", and will push forward with effective research and development based on the business strategy of each business segment.

    ■ Activity of research and development

    R&D

    Director of Laboratories

    R&D Laboratory

    Myoko Research Unit

    (Anan, Tokushima): Develops ferroalloys, Functional Materialsand Environment

    (Myoko, Niigata): Develops raw materials for batteries and basic research

    Ferroalloys ・ Increase cost competitiveness and R&D for the reinforcement of the technique for environment.

    FunctionalMaterials

    Environment・ Product development to respond to customer requests in the water treatment and

    pure water system field.・ Process technology development for the Melting and Solidification of Incineration

    Ash.

    ・ Product development and process technology development to respond to various customer requests.

    ・ Product search for the future making use of our strengths.

    スライド番号 1Contents スライド番号 4スライド番号 5History スライド番号 8How are ferroalloys made?スライド番号 10スライド番号 11スライド番号 12スライド番号 13スライド番号 14スライド番号 15スライド番号 16スライド番号 17 スライド番号 19スライド番号 20スライド番号 21スライド番号 22スライド番号 23スライド番号 24スライド番号 25 スライド番号 27スライド番号 28 スライド番号 30 スライド番号 32