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英国研制了一种新方法,在脱除各种贱金属和贵金属硫化矿精矿中的有害杂质方面取得了重大进展。这种方法可把砷、锑及其他有害元素降到最低水平,费用也低于目前所用其他工艺。
A new method has been developed in the United Kingdom where significant progress has been made in removing harmful impurities from various base metal and precious metal sulphide concentrates. This method can be arsenic, antimony and other harmful elements to a minimum level, the cost is lower than the other processes currently used.