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本文首次提出用铋试金富集矿石中贵金属。铋与贵金属在高温时能形成一系列合金,具备了富集贵金属的条件。铋也能在灰皿上进行灰吹。因此铋试金保持了铅试金简单、快速、富集完全、富集倍数大的优点。铋和它的化合物无毒,所以铋试金克服了铅试金有毒的缺点。氧化铋的生成热,比氧化铅的生成热小,因此铋试金法对镍、铜、锑等有害杂质的允许量要比铅试金法大,矿种的适应范围较铅试金更广一些。在研究铋试金富集贵金属的同时,还制定了四个分析方法。
This paper presents for the first time with bismuth test gold enrichment of precious metals in the ore. Bismuth and precious metals at high temperatures can form a series of alloys, with the enrichment of precious metals conditions. Bismuth can also be gray ash on the gray plate. Therefore, the bismuth test gold to maintain the lead test gold simple, fast, fully enriched, rich multiple advantages. Bismuth and its compounds are non-toxic, so bismuth test gold overcomes the shortcomings of lead test gold. The heat generated by bismuth oxide is smaller than the heat generated by lead oxide. Therefore, the allowable amount of bismuth gold test method for harmful impurities such as nickel, copper and antimony is larger than that of lead test method. some. In the study of bismuth test gold enrichment of precious metals at the same time, also developed four analytical methods.