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Lower cost production of specification products for copper, aluminium, irons and lead

Utilising the company’s established rotary furnace operating parameters and design, the Monometer refining technology integrates seamlessly with existing processes of smelting, refining and alloying. With optional retro-integration, foundries achieve – with lower grade charge materials – the higher purities and specifications of product typically associated with more costly feed materials.

The technology extends to melting the typical foundry dross and oxide wastes formed during normal furnace operations. Melting, refining and alloying are carried out in a single furnace system for a range of metal specifications while avoiding carryover contamination between cycles. 

For example, Monometer’s recent installation in the Chelyabinsk region of Russia enabled the production of copper granules from birch/cliff scrap to a suitable specification for the ultimate production of copper sulphate for the food industry. The melting technology company supplied the turnkey installation including the furnace system, charger, flux injector, refining injection technology and bag house filter system.

The Monometer furnace system is typically supplied with a 4.5 to 6 tonne capacity rotary tilting furnace, although furnaces with bath capacities up to 10m3 are available as standard. All furnace sizes are suitable for higher temperature processes, such as the treatment of copper concentrate, sponge iron and metallurgical adjustment of cast irons, or may be applied to applications such as degassing of aluminium, by the diffusion of argon or nitrogen, and targeted element removal e.g. for sulphur and carbon. Heavy metals such as nickel require cycles of selective flux treatment in the process of oxidation followed by reduction.

Other components of the plant may include the company’s low dust and low noise rotary charger, porous gas diffusion technology, oxy-fuel burner system, exhaust filter for all particulates and fines including hooding, settler, bag filter, the fluxing agents injector, and consumable spare parts. 

Monometer continues to develop rotary furnace technology to increase flexibility and thermal efficiency. As part of this programme fully regenerative burner systems suitable for a range of medium temperature processes are now supplied in areas where oxygen is either relatively expensive or practically unavailable.

Regenerative burners offer energy efficiency and reduced cycle times approaching the performance of oxy-fuel melting, without consuming bought in oxygen. The company’s lower cost options for burner technology include low NOx systems operating with high efficiency multi-pass tubular recuperators, and a range of low and medium pressure burners. All Monometer burners are designed to operate with most liquid fuels including standard furnace and diesel oils, reclaimed oils, coal tar fuels and many bio fuels.

Monometer has experience in handling and producing Russian compliant import documentation including GOST certification.

Contact: Christopher Hall PhD, Monometer Holdings Ltd, Monometer House, Rectory Grove, Leigh-on-Sea, Essex SS9 2HN, UK, Tel: +44 (0) 1702 472201, email: c.hall@monometer.co.uk web: www.monometer.co.uk