Wet separation technology for waste copper-tin alloy fitting soldering flakes

Abstract

The invention provides a wet separation technology for waste copper-tin alloy fitting soldering flakes, and relates to the technical field of metal recovery. The wet separation technology is characterized by comprising the following steps: (1) breaking a copper-tin alloy into fragments; (2) putting the fragments into a meshed iron basket; (3) putting the meshed iron basket into a caustic soda with the concentration of 15-30%; (4) manufacturing an iron polar plate, putting the iron polar plate into the caustic soda in step (3), and (5) connecting the meshed iron basket to the anode of a power supply, connecting the iron polar plate to the cathode of the power supply, and electrifying for electrolysis. By adoption of the wet separation technology, the soldering fragments can be recovered completely, conveniently and fast, the resource waste of the copper-tine alloy and the environment pollution are avoided.

Description

Technical field: [0001] The invention relates to the technical field of metal recycling, in particular to a wet separation process for soldering sheets of waste copper-tin alloy fittings. Background technique: [0002] Copper-tin alloy refers to a copper alloy containing 5% to 15% Sn, and some may contain a small amount of Zn. It is the oldest alloy (also known as "bronze") with high mechanical strength and hardness, good casting performance and processing Performance, corrosion resistance, good load-carrying properties, proper electrical conductivity and easy welding. In the current industry, copper-tin alloys are often used in electronic devices. Due to their proper conductivity and easy-to-solder properties, they are often welded together with other non-metallic devices as fixed or conductive devices, which play a role with simple soldering sheets. Similar effect, because there are many places where copper-tin alloys are used in electronic devices, and they are relativel...

AI Technical Summary

Problems solved by technology

In the current industry, copper-tin alloys are often used in electronic devices. Due to their proper conductivity and easy-to-solder properties, they are often welded together with other non-metallic devices as fixed or conductive devices, which play a role with simple soldering sheets. Similar effect, since there are many places where copper-tin alloys are used in electronic devices, and they are relatively scattered, it is easy to remove them using common methods. In the prior art, electronic devices are exchanged after removing large pieces of copper-tin alloys. For plastic or other recycling places, the remaining copper-tin alloys on electronic devices are processed by other processes in the subsequent processing. The processed copper-tin alloys or their copper and tin salt solutions are often treated as waste water or waste products Throwing it away not only causes a waste of resources, but also seriously pollutes the environment.