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据苏刊《有色金属》报道,苏联研制成锡精矿和烟化升华物的还原电熔炼及烟化处理炉渣的新工艺。新工艺不需预先精选就可处理各种类型的锡精矿,并把锡、铅、铜、铋、铟和锑提入粗锡;接着把粗锡精炼成商品锡。在原矿中存有钽和钨时,则钽和钨转入炉渣中。用烟化法从渣中再次回收锡后,渣就成为回收钽和钨的原料。
According to the Soviet Union, “Nonferrous Metals” reported that the Soviet Union developed a tin concentrate and fuming sublimation of the reduction of electric smelting and smoke treatment of slag new technology. The new process can process various types of tin concentrates without pre-selection and incorporates tin, lead, copper, bismuth, indium and antimony into crude tin; the crude tin is then refined into commercial tin. When tantalum and tungsten are present in the ore, tantalum and tungsten are transferred to the slag. After fumigation is used again to recover tin from slag, the slag becomes the raw material for the recovery of tantalum and tungsten.