Electrolytic additive component for electrolytic copper by recycling alkaline etching solution

Abstract

The invention provides an electrolytic additive component for electrolytic copper by recycling alkaline etching solution. The electrolytic additive component is prepared from the following raw materials: PEG-8000, SPS, alkaline bright yellow, copper sulfate and water in a mass ratio of 2500: 40: 15: 10: 22500. A small amount of electrolytic additive is added regularly, so that the compactness of electrolytic copper is higher, the texture of an electrolytic copper plate is harder, the quality purity is higher on the premise of not influencing the components of the etching solution and the etching of the regenerated etching solution on a production line, and a copper outlet period is longer, and thus, the stability of the etching rate and the etching factor is ensured, the etching quality is further ensured, and the quality of the etching solution is improved without adding an additional additive.

Description

technical field [0001] The invention relates to the technical field of electrolytic additives, in particular to an electrolytic additive component for recycling and reusing electrolytic copper in an alkaline etching solution. Background technique [0002] With the continuous development of alkaline etching solution recycling and recycling technology, the number of etching solution copper recycling enterprises is also increasing, but the recovery technology used is extraction, stripping and separation technology, and this technology will produce a large amount of oil washing wastewater, wastewater Containing a certain amount of ammonia nitrogen, the pressure on environmental protection is relatively high. Therefore, the new technology used is direct electrolysis technology, but in the electrolysis process, in order to make the electrolytic copper quality good, it is necessary to add electrolytic additives to the alkaline etching solution during electrolysis. Although the add...

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Problems solved by technology

[0003] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide an alkaline etching solution to regenerate the electrolytic additive components of electrolytic copper. By adding electrolytic additives, it does not affect the components of the etching solution and does not affect the regeneration of the etching solution. Under the premise of production line etching, the problems of poor density of electrolytic copper, non-hard texture of electrolytic copper plate, low quality and purity, and short copper production cycle are solved.

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