After silver ore selected from the group (or smelt), the product obtained silver-containing ore concentrates silver, silver, and various mud of non-ferrous metals. At present, the former two are usually subjected to pyrolysis (reverberation furnace, electric furnace, crucible, blast furnace, flash furnace), or by hydrometallurgical separation and extraction, and then electrolytic refining; the latter is mainly in the process of smelting non-ferrous metals. Semi-silver is enriched and integrated into the anode mud (mainly copper and lead anode mud). In China, 98% of silver is recovered from smelting anode mud of various non-ferrous metal mines.
In order to improve the recovery rate of independent silver mine flotation, it is recommended to adopt three measures: First, aiming at the thickness characteristics of silver mineral inlay grain size, fully dissociate silver minerals as much as possible, and improve the recovery rate of silver; second, choose neutral Or weakly alkaline flotation slurry alkalinity and the use of sodium carbonate as a flotation slurry adjuster to improve the floatability of silver; third, the use of xanthate and black medicine to enhance the ability to capture silver.
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