Iron removal method in precious antimony treatment process based on antimony concentrate

Abstract

The invention discloses an iron removal method in a precious antimony treatment process based on antimony concentrate, and relates to the technical field of metal smelting. According to the iron removal method, crushed lead-removed slag is added into metal smelting impurity removal equipment to react with antimony water in the metal smelting impurity removal equipment, the antimony water is stirred by spiral stirring blades, iron in the antimony water forms scum through lead removal slag, the scum floats on the surface of the antimony water, the floating scum is continuously fished up and discharged through rotation of a slag fishing assembly, the iron in the antimony water is fully removed, meanwhile, the lead removal slag is used as an iron removal raw material to reduce the iron removal cost, antimony and lead in the lead removal slag are recycled, so that resources are fully utilized, and in the iron removal process, no wastewater is discharged, the environment-friendly performance is excellent, the working procedures are few, the flow is simple, the used raw materials are few, cheap and easy to obtain, the energy consumption is low, and the method is suitable for the actual requirements of industrial production.

Description

technical field [0001] The invention relates to the technical field of metal smelting, in particular to an iron removal method in the antimony concentrate-based precious antimony treatment process. Background technique [0002] Precious antimony is the intermediate material of antimony-containing alloy produced by processing antimony gold concentrate, which contains a part of iron. At present, quartz sand and soda ash are mainly used to remove iron, which has the problems of long process, large amount of waste water and low recovery rate of antimony and lead; [0003] Lead associated with antimony ore, in the process of antimony smelting by fire method, the final product refined antimony or antimony trioxide has strict requirements on the lead content. Therefore, lead removal is an indispensable process in antimony smelting by fire method. Antimony In the process of pyrometallurgy, phosphate is often used to remove lead. During the refining process of antimony fire method, p...

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Problems solved by technology

[0005] In order to overcome the above-mentioned technical problems, the object of the present invention is to provide a method for removing iron in the precious antimony treatment process based on antimony concentrate: by adding the pulverized lead removal slag to the metal smelting impurity removal equipment to react with the antimony water therein, Under the agitation of the antimony water by the spiral stirring blade, the lead removal slag turns the iron in the antimony water into scum and floats on the surface of the antimony water, and the floating scum is continuously picked up and discharged by the rotation of the slag removal component to solve the existing problem. The iron removal method is high in cost and pollution, and the existing lead removal slag is difficult to deal with and causes waste of resources

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