Determination of Iron in Copper Slag Concentrate by Potassium Borohydride Reduction Method
In order to accurately analyze the iron content in copper slag concentrate,this method uses hydrochloric acid and nitric acid to dissolve the copper slag concentrate samples,add bromine to remove sulfur,and uses potassium dichromate standard titration standard solution to accurately determine the iron content in iron-containing materials.In this paper,the dissolution temperature of the sample,the addition of sulfuric acid,the degree of evaporation of the sample,the addition of copper sulfate and the reduction of potassium borohydride to the color of the solution were tested one by one,and good experimental results were obtained.This method is suitable for accurate analysis of iron in copper slag concentrate.The stability and accuracy of the determination results are good,and the determination range is above 0.5％.
slag concentratepotassium borohydridesodium diphenylamine sulfonatestandard titration solution for potassium dichromate
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