杂质元素对火试金重量法测定粗金中金量影响的探讨

摘要

The influence of impurity elements on the determination of gold content in coarse gold by fire assay gravimetric method is discussed,and a series of tests are conducted to determine the upper limit of the method applicable to the 12 impurity elements:Cu,Fe,Zn,Ni,Pt,Pd,Se,Te,Sb,Bi,Ti and W and the measures to ensure the applicability of the method when impurity elements surpass the upper limit.The study has great significance in guiding gold smelting enterprises to carry out accurate determination of gold content in coarse gold.%研究了杂质元素对火试金重量法测定粗金中金量的影响,并通过一系列实验分别确定了粗金中铜、铁、锌、镍、铂、钯、硒、碲、锑、铋、钛、钨12种杂质元素适用于该方法的上限量值,及杂质元素超上限量值时所采取的措施,保证了方法的适用性,对指导黄金冶炼企业准确测定粗金中金量具有重要的意义.