Method for smelting arsenic-containing gold concentrate

Abstract

A kind of smelting method of aurin mine containing arsenic, it contains the following technology steps: primary burning, second-class burning, The burning residue after burning will be added into the pickling ark with the soot separated to be pickled. The filtrate will be used to extract copper, the filter cake will be separated and cyanide residue and golden mud can be gained, and the golden mud will be smelted to extract gold bullion. The character of it is that the smoke gas, which has been catch dust by primary burning and second-class burning, will be drew arsenic in according to hop-pocket drying method. The process is as following, the smoke gas containing arsenic will enter the spray cooling tower and be quench by spraying water, the arsenic oxide will become solid and be separated out from gaseous crystal, the smoke gas will take arsenic oxide solid into bag arsenic catcher, and the arsenic oxide solid will be collected into ash bucket after being filtrated by hop-pocket, and then will be packed and finished product can be gained. The smoke gas after arsenic catching will enter the acid making system, and produce vitriol by cleanse workshop section, translation workshop section and dried absorbing workshop section, the finished vitriol product will be gained, and the off-gas will be exhaled into air. The technology of it is simple and feasible, and it is easy to operate, the coefficient of recovery and arsenic catching rate are both high, the investment of it is low, and the running cost of it is low.

Description

Technical field:

[0001] The invention relates to the technical field of extracting gold and silver by precious metal smelting, in particular to a method for smelting arsenic-containing gold concentrate. Background technique:

[0002] At present, for the smelting of arsenic-containing gold concentrates, secondary roasting is generally used to process arsenic-containing gold concentrates, which is matched with a wet arsenic removal process. Difficulty, pollute the environment after discharge. Invention content:

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a method for smelting arsenic-containing gold concentrate, which mainly solves the problem of large investment, high cost, and environmental pollution in the existing arsenic-containing gold concentrate smelting process. question.

[0004] In order to achieve the above object, the present invention is achieved in this way: a method for smelting...