Process for recycling copper through electrodeposition by treating scrap copper materials by adopting cyclone electrolysis technology

Abstract

The invention provides a process for recycling copper through electrodeposition by treating scrap copper materials by adopting a cyclone electrolysis technology, belonging to the technical field of recycling copper from wastes containing copper. The process is characterized by taking various purchased wastes containing copper as raw materials, preliminarily screening and grinding the wastes, adding the materials to a dissolved copper leaching bath device to undergo continuous copper dissolving to obtain a copper sulfate solution, then filtering the solution with precision filter equipment, decoppering the obtained filtrate through cyclone electrolysis, scalding an obtained copper pipe with weak acid and then feeding the copper pipe into a product processing unit to process a standard copper plate. The process has the following beneficial effects: through portable or module assembly, the cyclone electrolysis bath and support equipment are convenient to install, dismantle and move; the solution circulates in a closed loop, thus avoiding emission of harmful gases; electrolytic deposition is carried out on the metals selectively and the copper can be better purified by applying the cyclone electrolysis technology; higher current density and current efficiency are ensured, fewer reagents are consumed, the production cost is lowered and the enterprise revenue is improved; and high efficiency and high purity electrolytic extraction is carried out on the solution, the recycled copper is the standard cathode copper and the total recycling rate is above 96%.

Description

technical field [0001] The invention belongs to the technical field of recycling copper from copper-containing waste materials, and specifically relates to a high-efficiency, reliable, simple process flow, simple and convenient operation, and low-cost swirling flow electrolysis technology for treating waste miscellaneous copper materials and recycling copper by electrowinning. Background technique [0002] Scrap copper can be divided into new scrap copper and old scrap copper, each accounting for about half. New scrap copper is the scrap produced in industrial production, and old scrap copper is copper that is discarded after use or copper in discarded items or scrap. At present, there are many ways to recycle scrap copper at home and abroad, which are mainly divided into two categories. The first category is direct utilization, which accounts for 2 / 3 of the total scrap copper, that is, high-quality scrap copper is directly smelted into refined copper or copper alloy; The s...

AI Technical Summary

Problems solved by technology

[0004] At present, there are obvious shortcomings in the smelting process technology of scrap copper smelting enterprises in my country: ① Poor adaptability to raw materials, the existing process intelligently handles high-grade scrap copper; ② Due to insufficient scientific research investment, the comprehensive recovery of raw materials in existing smelters low, which increases the difficulty and cost of recycling, and it is difficult to obtain good returns; ③High energy consumption and poor environment are relatively common problems in domestic scrap copper smelters; ④The choice of process and production scale highlights "new" and "Big", ignoring the core of benefit; ⑤Long production process, less difficult to handle low-grade scrap copper