Refining agent for recovering red composition brass and preparation method of refining agent

Abstract

The invention discloses a refining agent for recovering red composition brass, which is prepared by smelting the following ingredients by weight percentage: 8-20% of Na2B4O7, 20-35% of MgF2, 45-70% of Na2CO3, and 1-3% of Y. The refining agent for recovering the red composition brass is low in cost, and service cost, has obvious deoxidation, degassing and impurity removal effects, can effectively purify brass liquid, and improves conductivity of regenerated red brass.

Description

technical field [0001] The invention relates to the technical field of red miscellaneous copper recovery and refining, in particular to a refining agent for red miscellaneous copper recovery and a preparation method thereof. Background technique [0002] Red copper refers to copper alloys with copper content greater than 96% and above. At present, the method of recycling red copper to prepare pure copper is mainly to cast red copper into anode copper through fire treatment, and then electrolytically refine it into electrolytic copper. Through electrolytic purification, it is bound to consume a large amount of energy. Compared with the method of electrolytic purification and reproducing products by ore smelting, the direct use of red copper to produce pure copper alloy products will save energy by more than 80%, which is about 80% more energy-saving than the method of electrolytic purification and reproducing products. 50%, and the electrolysis process is serious to environm...

AI Technical Summary

Problems solved by technology

At present, it is mainly recycled by direct refining and impurity removal. The refining agent used for refining and impurity removal is mainly a composite refining agent composed of copper-boron master alloy or copper-phosphorus master alloy and ordinary charcoal, but the effect of impurity removal is not ideal. Patent document CN103146943A discloses A red miscellaneous copper refining agent and a preparation method thereof are disclosed. The red miscellaneous copper refining agent of the present invention is a multi-element alloy, and its chemical composition (weight percentage) is: B=3.5-5.5%; Mg=3.5-5.0% ; Ce=8.0~11.5%; Pr=6.0~8.0%; Y=6.0~8.0%, the total content of rare earth elements Ce, Pr, Y is 20.0~27.5wt%, the balance is Cu; can effectively remove Ni, remove The rate can reach more than 68%

However, this refining agent uses a large amount of rare earth metals with high price, and the use cost is high, so the promotion and utilization value is limited

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