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用真空法提取锌开始是用于回收铅火法精炼过程产出的银锌壳中的锌。自鼓风炉炼锌发展起来以后,就用真空法来提取铅雨冷凝器产出的含锌铅中的锌。首先是间断作业,后来才逐步发展为连续的。“真空脱锌”的目的是:1.用较经济的方法生产含铅低的锌;2.提高铅雨冷凝器的冷凝效率。我国铅锌密闭鼓风炉试验,在伟大领袖毛主席“自力更生”方针的指引下,
Extraction of zinc by vacuum is initially used to recover the zinc from the silver-zinc shell produced by the lead-fire refining process. Since blast furnace zinc smelting has developed, the vacuum method is used to extract zinc from zinc-bearing lead produced by a lead-acid condenser. The first is intermittent operation, and later gradually developed into a continuous. The purpose of “vacuum dezincification” is to: 1. Produce low-lead zinc with a more economical method; 2. Increase the condensing efficiency of the lead-acid condenser. China’s lead-zinc sealed blast furnace test, under the guidance of Chairman Mao’s “self-reliance” principle by the great leader,