用海绵铜生产硫酸铜，其困难在于除铁杂质。
A hard problern is free from impurity iron in tbe preparation of cupric sulfate from spongy-copper.
介绍应用高质量浓度含铜废液制取工业硫酸铜与海绵铜的工艺方法和流程。
Technological methods and processes for the preparation of commercial copper sulfate and sponge copper with the high concentration copper waste solution are introduced.
玩具气球，海绵及铜簧是有弹性的。
研究了以炼锌厂废泥为原料，经氧化、酸浸、中和沉淀、稀硫酸溶解、置换等步骤制取硫酸铜、海绵镉和硫酸锌的工艺。
Prepared copper sulfate, sponge cadmium and zinc sulfate from abandoned mash of zincmaking plants following the step of oxidization, soaking in acid, neutralization sedimentation, replacement, etc…
研究了以炼锌厂废泥为原料，经氧化、酸浸、中和沉淀、稀硫酸溶解、置换等步骤制取硫酸铜、海绵镉和硫酸锌的工艺。
Prepared copper sulfate, sponge cadmium and zinc sulfate from abandoned mash of zincmaking plants following the step of oxidization, soaking in acid, neutralization sedimentation, replacement, etc…
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