TENOVA is a worldwide supplier of advanced technologies, products and engineering services forthe iron & steel and mining industries.

Modular Plants: Diamond Recovery Unlock Potential, Create Value

Tenova Bateman Technologies offers differentiated, project-specific process technology solutions based on decadesof establishing processing facilities. Advanced hydrometallurgical solutions include solvent extraction, electrowinningand leaching, supported by expertise in complementary processes from sulphuric and phosphoric acid plants, ionexchange circuits, water and wastewater treatment plants through to beneficiation processes for phosphate rock, baseand precious metals, iron ore, coal and uranium. Pioneering the concept in the 1960s, Modular Plants offer competitiveprocessing and reduced risk in difficult locations.

Modular Plants are self contained or are integrated into conventional plants. They are used for prospecting, exploration,research and testing, mining and mineral processing on land or sea. The process design is robust and makes use of thebest available components from reputable suppliers that support their products worldwide. Modular Plants plants areeasy to erect on site since they are trial erected and pre-commissioned at the factory, where they are marked, strippedand packed into containers, prior to dispatch to site. Modular Plants are used in the beneficiation and recovery of a widerange of commodities, including diamonds, coal, graphite, copper, magnesite, andalusite, chromite, platinum and gold.

Tenova Mining & Minerals is a total integrated solutions provider to the global mining, bulk materials handling andminerals beneficiation and processing sectors, offering innovative technological solutions and full process andcommodity knowledge across the mining industry value chain.

DIAMOND RECOVERY

Modular Plants are used for the recovery of diamondsfrom kimberlite and alluvial gravel on land and sea.The plants consist of feed preparation, which includesmilling, crushing, scrubbing and screening. This is followedby Dense Media Separation (DMS) and thereafter, greaseand / or X-ray sorting modules used for final diamondrecovery.The plant design capacities match our standard DMSunits which range from 1 tonne per hour (tph) to 200 tph.Tenova Bateman Technologies has an agency agreementfor the distribution of diamond sorting equipment withBourevestnik Inc of the Russian Federation, world leadersin X-ray sorters for enrichment of diamond bearing oresand X-ray analytical instruments.

MODULAR PLANT DESIGN

The Modular Plant design ensuresn competitive, efficient and cost-effective processingn configuration to specific process requirementsn supply as stand-alone facilities or for incorporationinto more permanent processing circuits

Tenova Bateman Technologies’ quality managementsystem is certified as ISO 9001:2000 compliant

BENEFITS OF MODULAR PLANTS

n Pre-assembly and testing of all structures, equipment,piping and electricsn Eliminates on-site erection difficultiesn Reduces overall construction timen Ensures reliable operation on commissioning

n Ideal for remote sites with minimal infrastructuren All services provided in self-contained modulesn Containerised modules or modular gable coveringsprovide security and environmental protectionagainst all the elements

n Easy to transport, re-erect, operate and maintainn Ergonomic design makes equipment readilyaccessible

n Minimal operator attention required, which is keywhere there are skills shortages

n Wear and corrosion resistant construction materialsn Low maintenance componentsn Modular structures ensure that vibrations arecontained

n Prolonged service life and reliable operationn Fit-for-purpose designn Hard wearing, corrosion-resistant, robust andproven components

n Equipment sourced from world-leading brands,which provide global support services

n Low impact on the environmentn Modules built on boxed steel skid frames, whichminimise on-site civil structures

n Minimal rehabilitation of the site required postmining operations

STANDARD DMS MODULE RANGE

Standard pre-designed plant consists of 1, 5, 10, 20, 50,70, 100, 150 and 200 tph modules which can be:n incorporated into purpose-designed plants for large-capacity processing

n used as multiple modules in parallel to boost outputand enabling servicing to be undertaken whilemaintaining plant throughput

APPLICATIONS

n 50 tph plant is the most popular of the rangen 1 tph low-CAPEX plant is suitable for prospectingn Mega Modular Plants are used for increasedthroughput

n Plants used for sampling campaigns have capacitiesfrom 10 tph to 60 tph of feed

n Ship and barge-mounted plants comprise floatingmodules to process material pumped from beds underthe sea and rivers. They comprise liberation modulesfor scrubbing, screening and sizing, DMS modules anddiamond-recovery modules.

DIAMOND RECOVERY MODULES

Tenova Bateman Technologies has complete diamondrecovery capability, i.e. high and low throughput X-raysorting and grease recovery technologies. These areused in fit-for-purpose combinations to meet Clientspecific needs. Automated, hands-off diamond recoverysystems recover up to 98 % of diamonds, depending ondiamond characteristics.

X-Ray SystemsTenova Bateman Technologies has an agency and sup-port agreement for the distribution of diamond sortingequipment with Bourevestnik Inc of the Russian Federa-tion, world leaders in X-ray sorters for enrichment ofdiamond bearing ores and X-ray analytical instruments.n Sorters for primary enrichment of ore handle feedsizes of -50 mm to +5 mm and feature recovery ratesgreater than 98 %, at throughputs from 9 tph to100 tph, depending on the feed size

n Sorters for concentrate treatment handle feed sizesfrom -6 mm to +3 mm, with recovery rates in excessof 98 % and 99 % and throughputs from 170 kg/hto 5,000 kg/h, depending on the feed size

n Sorters for final concentrate treatment handle feedsizes from -50 mm to +1 mm, with recovery rates inexcess of 98 % and 99 % and throughputs from12 kg/h to 2,500 kg/h, depending on the feed size

Grease Belt SystemsGrease belts excel in the recovery of type II diamonds (lowluminescence). The unit capacity is also superior to mostX-ray machines. Throughputs of 2 tph per feeder for fines(-6 mm), 3 tph per feeder for middlings (-12 mm + 6 mm),and 5 tph per feeder for coarse (32 mm +12 mm) concen-trate, depending on the grease belt system, are used.

SUPPORT SERVICES

Tenova Bateman Technologies offers a comprehensiverange of support services.n Spares and consumables: dispatched worldwidewithin 48 hours

n Long-lasting, high quality diamond sorting gloves exstock

n Density tracers: standard and inexpensive techniqueto determine whether DMS cyclones are functioningoptimally

n Consulting and training: consulting services on allaspects of processing; supervision of erection andcommissioning; and training of operating personnel

Tenova BATEMAN TECHNOLOGIES

Tenova Minerals (Pty) Ltd Emerald Boulevard Greenstone Hill Johannesburg 1609PO Box 7737Johannesburg 2000South Africaphone +27 11 899 9111 enquiries@bateman.com

Bateman Advanced Technologies Ltd13 Hatnufa St. P.O. Box 641Hi-Tech Park Yokneam 20692 Israelphone +972 4 959 9888 enquiries@bateman.com

Bateman Chile SpA.Andrés Bello 27777° Piso Oficina 702Las CondesSantiago Chilephone + 56 2 498 1100 enquiries@bateman.com

Tenova MINING & MINERALS

Bateman Projects (Pty) LtdEmerald BoulevardGreenstone Hill 1609PO Box 7737Johannesburg 2000South Africaphone +27 11 899 9111fax +27 11 899 2302enquiries.TMM@za.tenovagroup.com

MINING & MINERALS

www.tenovagroup.com

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Edition 1 August 2012