Secondary Copper Recovery Technology

Side-blowing submerged combustion (SSC) technology

This technology, as a result of TOMINE’s own R&D, is for comprehensively  recovering   athermic materials containing mainly copper. One oxygen-enriched air submerged type side-blowing furnace is used to conduct intensified smelting of low-grade copper scraps, circuit  board,  copper-bearing sludge and  copper-bearing dust, etc. to  produce  blister  copper  products containing  valuable metals. Organics contained in feeds undergo high-temperature decomposition, secondary combustion, quenching, tail gas handling to reach emission standards before being emitted.This technology is of high heat utilization efficiency and good environment  performance, thus being a new technology used for urban minerals treatment.

Top-blowing Rotary Converter (TBRC) technology

The  TBRC furnace and its control  system is independently researched and developed by TOMINE  which uses pure oxygen for  smelting. The furnace body can rotate and tilt to adapt itself to high-temperature smelting of high-melting substances. The TBRC technology has been  commercialized in treating copper  scraps,  copper anode slime,  high- Ni copper concentrate, copper dross and primary alloy, etc.