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一、绪言至目前为止,汞矿分析最普遍的方法是汞矿蒸馏后的硫氰酸钾滴定法即法,对于低含量的汞矿采用列依湼克奎的比昙及打萨宗比色法等;不管什么方法,大都是先使汞成金属状态蒸馏出来。做过这门工作的人都知道,决定汞矿分析速度和质量的主要问题就是蒸馏的方法和温度。当前用得最普遍的是将矿样与铁粉装在玻球中,在巴氏喷灯上加热至玻球软化,继续加热5～7分钟,然后以硝酸溶解。高铁作指示剂,用硫氰酸钾标准溶液滴定,每日可作20杯。此法较快,质量也较高,但从时间上、成本上和质量上说都还有改进的必要。特别是巴氏喷灯,火焰不仅小,不适于大批生产,同时温度一般只有六百多度,因此需要灼烧很长时间,往往由于预热不够,发生事故以致返工,而且时常不能得到满意的结果;市场上酒精的供应又有困难。为此,我们提出以煤油喷灯
I. INTRODUCTION So far, the most common method of mercury analysis is the potassium thiocyanate titration method after the mercury is distilled. For the low mercury content, Act, etc .; no matter what method, most of the first mercury is distilled into a metal state. As anyone who has done this job knows, the major issue that determines the speed and quality of mercury analysis is the distillation method and temperature. Currently used most commonly is the mineral sample and iron powder loaded in the glass ball, heated to pasteurized glass ball softening, continue heating for 5 to 7 minutes, and then dissolved in nitric acid. High-speed rail as indicator, titration with potassium thiocyanate standard solution, 20 cups per day can be made. This method is faster, higher quality, but in terms of time, cost and quality are still there is an improvement necessary. In particular, pasteurized torch, the flame is not only small, not suitable for mass production, while the temperature is generally only six hundred degrees, it needs burning for a long time, often due to insufficient preheating, accidents resulting in rework, and often can not get satisfactory results There is another difficulty in the supply of alcohol on the market. To this end, we propose kerosene torch