蚀刻液，是一种铜版画雕刻用原料。 通过侵蚀材料的特性来进行雕刻的一种液体。从理论上讲，凡能氧化铜而生成可溶性铜盐的试剂，都可以用来蚀刻敷铜箔板，但权衡对抗蚀层的破坏情况、蚀刻速度，蚀刻系数、溶铜容量、溶液再生及铜的回收、环境保护及经济效果等方面。
研究了沉淀母液中残余铜的除去方法，使之再生，可回用于碱性蚀刻液的生产。
Researches on the removal methods of remaining copper in the mother liquor are conducted, making it rise again and utilizing it.
介绍了新型离心萃取机的工作原理、特点及其在碱性蚀刻液再生循环中的应用状况及前景。
The working principle, characteristics and application status and trend of a new type of centrifugal extractor in alkaline etching solution recycling were introduced.
运用络合平衡和沉淀平衡的理论，对酸性氯化铜蚀刻液的蚀刻过程进行研究，提出以铜废料作还原剂，回收蚀刻液中铜。
Based on application of theories of complexing and precipitation equilibriums and study of etching process using acidic copper chloride etching soln. , a new method of recovering Cu in etching soln.
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