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一、前言我们知道,单独能作为提取锗的原料为数极少,绝大部分提取锗的原料是从其它工业的副产品或废液中得到的。而当提取锗的原料是原煤——含锗褐煤时,锗的提取大都是使其富集到烟灰中去。可是在这一富集过程中,有一部分锗将变为锗的低价氧化物或硫化物而被挥发掉。至于被挥发掉的多少又同煤质与燃烧情况的不同而有较大的差异。
I. INTRODUCTION We know that there is a very small amount of raw materials for extracting germanium alone. Most of the raw materials for extracting germanium are obtained from by-products or waste liquids of other industries. When the raw material for the extraction of germanium is raw coal-germanium-containing lignite, the extraction of germanium mostly makes it enrich the soot. However, during this enrichment process, a portion of germanium will be volatilized by becoming a low-valent germanium oxide or sulfide. As for how much is volatilized and coal quality and the different combustion conditions have a greater difference.