Seeking help with the pretreatment of gold cyanide slurry
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Conventional gold cyanide slurry contains about 12% copper, about 43% silver, about 11% lead, less than 7% gold, with zinc being the main component among the others. Could some expert advise on preprocessing methods for removing impurities, other than the nitric acid method? Thank you!
There are only two normal treatment methods: slag formation using oxidants and impurity removal with sulfuric acid; detailed instructions are provided for the cyanidation and smelting of gold
What method do you use to cyanide which type of ore? Why is the copper content in gold lacquer so high? Is copper not recycled? The gold paste calcination method can be considered, followed by wet treatment.
This is likely copper electrolytic anode slime. The main processing steps are: 1. sulfation roasting, 2. wet method for removing copper and zinc, 3. feeding it into a lead refining furnace and then into a silver separation furnace, 4. electrolytic refining of silver. However, other impurities such as bismuth, antimony, etc. need to be considered in the process
You can try installing a lean liquid treatment system.
Pyrological methods: acid dissolution, roasting, drying, and melting. Wet method: Controlled potential chlorination method,
The method is as follows: first carry out acid washing, then alkali washing, and finally refine the gold of high quality using an intermediate-frequency furnace.
This is likely a product from gold mines that are difficult to process; the \"Design Manual for Heavy Non-ferrous Metals\" (Volume on Tin, Antimony, Mercury, and Precious Metals) provides detailed information on the processing methods for such materials.
Thank you all! This is a conventional gold cyanide slurry; due to the complexity of the purchased mineral powder, the slurry has such a composition. Wastewater treatment is available, but it has not been activated; the lean liquid contains a high level of copper. Additionally, when this gold paste is acid-washed directly, the copper removal effect is not satisfactory. It seems that adding a certain reagent can act as a catalyst during acid washing for copper removal, yielding better results. If anyone knows this, please let me know; thank you! To contact me: zxjgold@163.com
Copper can be removed using compressed air as an oxidizing agent.