Process suitable for treating barium sulfate slag in copper anode slime

A technology of copper anode slime and barium sulfate, which is applied in photography technology, photography auxiliary technology, instruments, etc., can solve the problems of low flotation recovery rate, fast settling speed, large loss of valuable elements, etc., and achieve high gold and silver recovery rate, recovery The effect of short cycle and high recovery rate

Pending Publication Date: 2022-07-29
紫金铜业有限公司
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  • Description
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Problems solved by technology

[0003] The barium sulfate slag contains a certain amount of gold, silver, bismuth, antimony, palladium and other scattered elements, including 50-200g/t of gold, 500-6000g/t of silver, 0.2%-0.9% of copper, 1% of platinum, and 1% of palladium. %-4%, barium 45%, coarse particle size, sand grain shape, +160 mesh accounted for about 88.7%, relatively large proportion (true specific gravity up to 4.396), the existing treatment method is to return the slag concentrator and flash Furnace slag and converter slag enter the flotation system after ball milling, and finally

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Example Embodiment

[0014] The present invention will be further described below. It should be noted that this embodiment takes the technical solution as the premise, and provides a detailed implementation manner and a specific operation process, but the protection scope of the present invention is not limited to this embodiment.

[0015] The present embodiment provides a process suitable for the treatment of barium sulfate slag in copper anode slime, and the specific process is as follows:

[0016] S1, after the barium sulfate slag is countercurrently washed to be neutral by the belt filter, the washing solution of gained enters step S2, and the washing residue of gained enters step S3;

[0017] S2, the lotion obtained in step S1 utilizes extraction electrodeposition process to produce high-purity cathode copper;

[0018] S3, the washing slag of step S1 gained adopts cyanide lean liquid to adjust slurry, utilizes ball mill to be finely ground to -325 mesh and accounts for 90%-95%, and after ball...

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Abstract

The invention discloses a technology suitable for treating barium sulfate slag in copper anode slime, through a wet process of cyanidation leaching-zinc powder replacement-gold and silver refining, a high gold and silver recovery rate can be achieved, the part of gold and silver can be recovered within 10 days, and the recovery period is short. And the leaching residues are returned to the copper pyrogenic process smelting process, the total recovery rate of gold and silver is further increased, and platinum and palladium can be comprehensively recovered. The method has the characteristics of low cost, high recovery rate and short recovery period.

Description

technical field [0001] The invention relates to the technical field of copper smelting, in particular to a process suitable for treating barium sulfate slag in copper anode slime. Background technique [0002] The copper smelter uses barium sulfate as the release agent for the anode plate. Due to the influence of various factors such as mechanical entrainment, a part of the release agent barium sulfate enters the copper electrolysis together with the copper anode plate. During the copper electrolysis process, the barium sulfate slag is insoluble. Sulfuric acid enters the rare and precious factory in the form of copper anode slime. After the copper anode slime is decoppered by the rare and precious factory, since the barium sulfate slag is a high melting point substance, it is difficult to melt during the smelting process of the Kaldor furnace, and the proportion is large, so it is not easy to melt. It is beneficial to the slag-making process control of the Kaldor furnace sme...

Claims

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Application Information

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IPC IPC(8): C22B3/04C22B3/12C22B3/44C22B3/46C22B7/00C22B11/08C25C1/12
CPCC22B3/04C22B3/12C22B3/46C22B3/44C22B11/044C22B11/08C22B7/006C25C1/12
Inventor 邱建森廖元杭林凡黄宜标李耀泉廖志凡吴开兴王灿华张志斌
Owner 紫金铜业有限公司
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