Treatment method of scrap copper

Abstract

The invention discloses a treatment method of scrap copper. The treatment method is characterized by comprising the following steps: (1) carrying out detection and analysis on the scrap copper to be melted, and determining the application and smelting production process of the scrap copper according to the alloy components of the scrap copper; (2) according to the analytic result, removing impurity metal elements in the scrap copper on the basis of processes such as loading, melting, oxidizing, degassing, slagging, deslagging, reducing and refining for red impure copper and high-copper alloy;and (3) carrying out degassing, deslagging and deoxidization reduction on liquid copper obtained in the step (2) again. In the invention, a high-quality copper material is produced by directly utilizing the scrap copper, thus the treatment method has the advantages of low investment, low energy consumption, simple production process, low production cost and little environment pollution, valuable metals in the scrap copper can be reasonably utilized, and the competitiveness of a product in market competition can be greatly improved.

Description

technical field [0001] The invention relates to copper and copper alloy processing, belongs to the technical field of smelting and casting of non-ferrous metal materials, and in particular relates to a treatment method for scrap copper. Background technique [0002] With the rapid development of my country's economy, China's copper production and consumption has leapt to the first position in the world. About 70% of copper processing enterprises in my country use miscellaneous copper as the main raw material for production, and the recycled refined copper produced by processing miscellaneous copper accounts for more than 40% of my country's copper output. Recycling copper from scrap copper has become an important part of my country's copper production. Compared with developed countries, the direct utilization rate of scrap copper in my country is relatively low. Chinese copper enterprises generally use scrap copper in two ways. One is to use scrap copper to produce lower-gr...

AI Technical Summary

Problems solved by technology

Red miscellaneous copper and high-copper alloy are a large category of waste copper with the largest amount, the highest quality, and the highest content of matrix metal copper. The copper content of the matrix metal of red copper can often reach about 99.50% (see Table 1), and high-copper alloy The copper content in copper is also more than 96%. Using the aforementioned two methods to recycle red miscellaneous copper and high-copper alloys is a great waste of resources, and the quality and cost advantages of high-quality miscellaneous copper raw materials are completely lost.

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