Recovery of gold and silver from anode mud and comprehensive recovery of copper, lead and antimony

1) Project we used R-410 resin by the National Science Foundation funded the research to develop a non-cyanide leaching gold recovery R-410 adsorbed and integrated RECOVERY valuable metals such as copper, to achieve a new technology, new materials Support with the overall technology of the new equipment. A production line for recovering gold and silver from copper and lead mixed anode slime and comprehensive recovery of copper, lead and antimony has been built in a certain place in Hubei, with an annual output of 50 kg of gold; 10 tons of silver; 10 tons of copper and lead; Around 30t, the technical and economic indicators are good. Gold leaching rate ≥98.0%, adsorption rate, desorption rate and electrolysis recovery rate ≥99.5%, total recovery ≥96.0%, copper leaching rate ≥99.0%, reduction precipitation rate ≥99.0%, total recovery ≥95.0%, 锑和The lead recovery rate also reached 90.0%, and the final residue is also a concentrate product with no solid waste.

2) Technical index Au leaching rate: ≥98.0% Ag leaching rate: ≥98.0% Au recovery rate: ≥96.0% Ag recovery rate: ≥97.0%

3) Production conditions: 100t anode mud size is required for annual treatment: the main plant area is 320m2, supporting water, electricity, wind and steam. Main equipment: 3 sets of 1m3 enamel reaction tank, 2 sets of 0.5m3 enamel reaction tank, 1 set of ion exchange equipment, 1 set of vacuum equipment, 3 sets of filtration equipment ; total power: 60~100 kW; total investment: 80~1 million yuan .

4) Market forecast The price of gold in the international market is gradually lower, but the price of raw materials is also lowered. The difference between raw materials and finished products is relatively fixed, and there is no market problem in the sales of finished gold. The market price of silver has risen steadily and the market prospects are very good.

5) Benefit prediction The treatment of anode slime containing 0.05% Au and 10% Ag includes the reagent cost of about 5,500 yuan and the profit and tax of about 20,000 yuan. The production line of 100t/a scale has a total profit and tax of about 2 million yuan.

6) Transfer method technology transfer, technical service, processing of materials or technology shares.

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