在《Mining Engineering》1991年9月号上D.C.Matthews等人发表文章说,在环境问题越来越敏感的社会里,难处理金矿石的加压氧化日益普遍。早就知道Getchell矿山存在有难处理的含砷硫化物金矿石,从1938年起就和氧化矿同时开采,采用回转窑后又改用沸腾焙烧炉处理,回收率只有68％或略高于70％。1983年矿山圈出了约40.4t的难处理金资源,于是研究了多种加 In Mining Engineering’s September 1991 issue, D. C. Matthews et al. Published an article saying that it is increasingly common for difficult-to-process pressurized oxidation of gold ore in societies where environmental issues are becoming more and more sensitive. It has long been known that there are refractory arsenic-sulfide-bearing gold ores in the Getchell mine that have been mined at the same time as oxide mines since 1938. When rotary kilns are used, they are switched to boiling roasters and the recovery rate is only 68% or slightly above 70 %. In 1983, some 40.4 tons of refractory gold were mined in the mine area, and various kinds of additions were studied