Energy saving and environment protecting electrolytic copper foil copper dissolving system and copper dissolving process

Abstract

The invention provides an energy saving and environment protecting electrolytic copper foil copper dissolving system and a copper dissolving process. A copper dissolving tank is included, and communicates with a liquid feeding pipeline and an overflow pipeline; the overflow pipeline communicates with the upper portion of the copper dissolving tank; the overflow pipeline is sequentially provided with an overflow liquid storing tank, a filter and a heat exchanger; the liquid feeding pipeline communicates with the top of the copper dissolving tank after passing through the heat exchanger; the upper portion of the copper dissolving tank communicates with an air draft pipeline; and the bottom of the copper dissolving tank communicates with an air blower. According to the energy saving and environment protecting electrolytic copper foil copper dissolving system and the copper dissolving process, due to energy transformation on the copper dissolving system, the copper dissolving reaction speed is effectively increased, the energy consumption is lowered, and various types of pollutants accompanied in the whole copper dissolving process are remarkably lowered.

Description

technical field [0001] The invention belongs to the technical field of electrolytic copper foil production, and in particular relates to an energy-saving and environment-friendly electrolytic copper foil melting copper system and a copper melting process. Background technique [0002] In the production process of electrolytic copper foil, the dissolution of copper is the first process. In the traditional immersion copper dissolution process, the sulfuric acid solution can fully contact the copper material, but due to the low utilization rate of air, the rate of copper dissolution is slow and the heat release efficiency is low. Low, the huge temperature difference between replenishment and discharge leads to a gradual drop in solution temperature, and the solution needs to be continuously heated to maintain a high-efficiency reaction temperature; the spray-type copper-dissolving process adopts ring-pipe spraying, the contact area between copper and air is greatly increased, an...

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Problems solved by technology

[0003] In the prior art of the present invention, the electrolytic copper foil melting copper process has the problems of low copper melting efficiency and high energy consumption. An energy-saving and environmentally friendly electrolytic copper foil melting copper system and copp

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