Method for melting copper at low temperature and copper melting device
A copper-dissolving and low-temperature technology, applied in the field of electrolysis, can solve the problems of declining market competitiveness of enterprises, large corrosion of equipment and pipelines, and high cost of copper foil products, achieving high copper-dissolving efficiency, low equipment investment cost, and easy industrialization The effect of production
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[0025] Reference figure 1 , A method for dissolving copper at low temperature, comprising a copper dissolving device, the copper dissolving device includes a copper dissolving tank 1, a circulating pipe 5, an air filter 4, an air pipe 6, an air inlet pipe 7, and a high-pressure acid-resistant air pump 3 The liquid level sensor 14, the acid-resistant pump 2, and the molten copper tank is sequentially provided with a feeding port 18, an acid spray pipe 10 with multiple nozzles, and a filter plate 11 from top to bottom. The acid spray pipe 11 passes through and The acid-resistant water pump 2 is connected, and the upper end and the lower end of the copper melting tank 1 are sequentially provided with an exhaust port 9 and an air intake port 16, which specifically includes the following steps:
[0026] 1) Preparation of reaction raw materials: preparation of dilute sulfuric acid solution and preliminary copper material;
[0027] 2) Use a preheater to preheat the molten copper tank to abo
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