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矿石中硫的测定方法,一般低硫用燃烧法,高硫用硫酸(金具)重量法。部颁标准“铁矿和锰矿化学分析法”中,亦曾提到燃烧法适用于0.2%以下合硫量的矿石。用重量法测定矿石中高含量的硫,虽然准确性高,但操作手续繁,工效低,成本高。我所在进行铜铅锌选矿试验中,由于有大量含硫量由1%～50%的选矿样品,需要作硫的分析,如用重量法测定,则跟不上选矿进度,为了按时提出试验报告,作者曾进行了用燃烧法测定矿石中高含量硫的试验。实践证明,只要掌握一定条件,用燃烧法测定矿石中高含量的流,是能得到满意的结果的。
Determination of sulfur in ore, the general low-sulfur combustion method, high-sulfur sulfuric acid (with a) gravimetric method. The ministerial standard “Iron and Manganese Chemical Analysis Act,” also mentioned that the combustion method is suitable for ore 0.2% sulfur content. Gravimetric method to determine the high content of sulfur in ore, though with high accuracy, but the operation procedures are complex, low efficiency and high cost. I am in the copper, lead and zinc beneficiation test, due to a large number of sulfur content from 1% to 50% of the dressing samples, the need for sulfur analysis, such as gravimetric method, you can not keep up the dressing progress, in order to submit the test report on time , The authors conducted a test using combustion method to determine the high content of sulfur in ore. Practice has proved that as long as a certain condition, using combustion method to determine the high content of ore flow, can get satisfactory results.