Who are Tetronics?

Tetronics International

DC Arc Plasma Technology

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Commercial in confidence

Our Company

Our VisionTo enable a thriving planet for future generations, while making it financially beneficial for companies, shareholders and governments to make responsible choices for the environment and for generations to come.

Our MissionOffering economically stable and viable methods of recovering resources from waste. Using our industry-leading technology and experience to deliver maximum resource recovery and the highest levels of hazardous material destruction.

UK environmental company with 50 years’ global experience delivering clean plasma technology for maximum resource recovery and the highest levels of hazardous material destruction.

Our TechnologyDeveloped, enhanced and continually refined over 50 years with 109 patents, granted or pending across 12 families

Widely recognised as World Leaders in Plasma

Tailored solutions for Resource Recovery and Hazardous Material Treatment

Technically and Economically proven with an impressive track record

Global Service Provision

Tailored SupportWorld Class Plasma Materials Testing Facility in UK

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Tetronics BackgroundMarket leader in the application of DC Plasma Arc technology on a global basisEstablished 1964 in Oxfordshire, UK with a R&D focusAcquisition by InvestSelect in 2004 triggered significant investment, move to new bespoke facilities at Marston Gate and strategic repositioning of the company into new areas of applicationComprehensive and sophisticated R&D trial facilitiesAdvanced Plasma Power (APP) formed 2005/2006Mature technology platform with a securely protected IP that continues to be developed109 patents granted or pending across 12 familiesExperienced process design, engineering and manufacturing staff complemented by project management, commercial and environmental regulatory expertise90+ installations globally

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Partners/CustomersStrategic Partnerships

• Harsco Corporation• Mitsubishi Corporation

Customer and Plasma OperationsBASFSolar Applied Materials Technology CorporationFuruya MetalHarsco Metals and MineralsMitsubishi Heavy IndustriesHitachi Zosen CorporationOutokumpu Steel Company POSCO Steel Company

http://www.hitachizosen.co.jp/english/index.html

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Electronics Waste -Spent Catalysts -

Mining Waste -Steel Plant Waste -

- Air Pollution Control Residue- Nuclear- Petrochemical- Asbestos- Spent Potliner- Organics (PCB’s & Dioxins)

Application Summary

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Plasma: an ionised gas often referred to as the 4th state of matter

Examples of plasma: lightening, auroras, stars & sun - plasmas constitute more than 99% of the universeThermal plasma emits intense heat and Ultra Violet lightFormed when a gas (e.g. nitrogen) is heated to >7,000K by an electric currentPlasma cracks/reforms all organic matter and melts or vitrifies inorganic matter into an inert rock (Plasmarok®) with properties superior to granitePlasma treatment is a recovery process – not disposal

What is Plasma?

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Why Choose Plasma?

Proximal solution-offering quicker turnaround

Flexible operational profile

Robust, reliable and easy to maintain technology

Small physical foot-print and no unusual building requirements - readily retrofitable to existing plants

Low environment impacts – sustainable recovery

Lowest capital and operation cost at ‘small’ operational scales

Tolerance of feed compositional variations

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Plasmarok® – From Waste to ProductPlasmarok® an Environment Agency approved product Use - Can be used for a range of applications (e.g. aggregate)Suitability - Mechanically stronger than natural alternatives such as basalt and graniteSafety - Non hazardous and extremely resistant to leachingLeachability – leaching test results (BS EN 12457-3) for Plasmarok® from autocat and a chemical catalyst are well below waste acceptance criteria (WAC) for inert landfill in EU

mg/kg As Cd Mo Ni Sb

WAC Limit for Inert Landfill 0.500 0.0400 0.50 0.40 0.060

Chemical Catalyst Slag 0.005 0.0005 0.12 0.03 0.006

Autocatalyst Slag <0.014 <0.0030 <0.05 <0.05 0.031


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OVERVIEW OF TETRONICS’ GLOBAL REFERENCES

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Global Customer Reference Map

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European Customer Reference Map

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Asia Customer Reference Map

North Asia Customer Reference Map

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North America Customer Reference Map

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South America Customer reference Map


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PLASMA RECOVERY OF PRECIOUS METALS

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Platinum Group Metal Recovery Process

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THE TECHNOLOGY - The PM Recovery Furnace

Plasmarok®

Anode

Refractory

Slag Overflow Spout

Carbon Hearth

Precessing,Adjustable Arc Length Plasma

Plasmarok®

Robotic Manipulator

Feed Port

Anode

Cathode Torch

Collector metalLayer

Metal Tap Hole

A single facility of its type processes circa 2,000 tonnes of autocat per year.

The PGM recovery system delivers excellent technical and commercial yields.

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Example Waste Stream: Autocatalyst

Average PGM content is typically £50 on current market prices, but can be in excess of £200 on the high value autocats.

The value is in the washcoat, impregnated into the ceramic honeycomb.

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Carbon Impact - Energy Use & CO2 Emission for PGM Smelting

Plasma smelting leads to significantly reduced energy use and greenhouse gas (GHG) emission compared with conventional PGM smelting used in primary extraction.

kWh/kg PGM kg CO2/kg PGM0

10,000

20,000

30,000

40,000

50,000

60,000Smelting used in Primary Extraction

Plasma Smelting Process

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Tetronics PM Track RecordClient ID Location Date

Commissioned Capacity

tpy autocat*

MultiMetco No 1 USA 1982 6000

MultiMetco No 2 USA >1982 3723

Heesung / BASF No 1 South Korea 2005 930

Heesung / BASF No 2 South Korea 2007 1850

PPUK UK 2007 1850

Solar Taiwan 2012 1850

Furuya Metals Japan 2013 800

Chinese Client China 2013 1850

South Korean Client South Korea 2014 2790

German Client Germany 2014 1850

* Figures based on quoted specification at 85% annual availability processing autocat

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Next Generation – Metal Recovery from E-WasteSegregation

(manual picking, disassembly)

Separation(crushing, sensing, sorting)

Incineration(optional)

Smelting(submerged arc, plasma)

Refining(hydrometallurgical, electrolysis)

Plastics, bulk metals

Heating value

Precious metals

Aggregate

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Plasma Smelting - Process Description

Formulation & Blending

Feeding

Plasma Furnace

Off Gas Cleaning

Plasmarok®

Plasma Power

Metal Bullion

Catalyst, WEEE, etc. Collector metal, flux

Stack emissions


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PLASMA RECOVERY OF BASE METALS & EAF DUST

PROCESSING

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Process Schematic for Steel Dust Processing

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Plant Layout

Note: building is circa 25 x 40 m and height to apex is circa 20 m

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Operational Plant Reference 1 - HarscoOwnership = JV between Harsco and the Steel Mill OperatorOperator = HarscoYear of start up = 1991Location = Terni, Italy (within the ThyssenKrupp Steel Mill)Specified Working Capacity = 20,000 tpa mixed wasteWaste = EAF/AOD dust and mill scale / cuttings Operational Status = activePower rating = 7 MW at 20,000 AmpsTechnical recovery rates, and associate operating parameter, are altered based on changes in commodity and utility prices/costs It is estimated that since 1991 almost $190 million of value has been realised from stainless steel dusts, scales and other material

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Harsco Terni, Italy


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AIR POLLUTION CONTROL RESIDUES(APCR)

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APCR Treatment Process

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Air Pollution Control Residue (APCR) TreatmentProvides close to a near zero waste solution in the treatment of a hazardous waste streamTechnology demonstrated and provenVitrification of the inorganic fraction to recover a dense environmentally stable slag Plasmarok®Commercial plants operational in Japan for mixed IBA/Fly ashHCl recovered as a product

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Benefits of Using Tetronics Plasma TechnologyProximal solution, offering quicker turnaround Small physical foot-print and no unusual building requirementsFlexible operational profile-short start-up times from coldRobust, proven technology and easy to maintain Low environment impacts-helping meet corporate CSR targetsLowest capital and operation cost at ‘small’ operational scalesWide feedstock flexibility/turndownVersatile with multiple industrial applicationsReadily retrofitable to existing plantsProvides a future proof solution for managing risk

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Why Choose TetronicsCredibility of our reference plant and experienceSuperior technical performance of our technologySimple and robust processBreath and scope of our Intellectual Property (IP) – global patents combined with an in-depth technical competence

Low environmental impactNear zero waste solutionSustainable resource recovery solution

Marston GateSouth Marston ParkStirling RoadSwindon SN3 4DE

Tel : +44 (0)1793 238500

Thank [email protected]

mailto:[email protected]