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我厂入选矿石为矽卡岩型白钨、铜、铅、锌多金属矿石。硫化矿的浮选尾矿按“彼德罗夫法”浮选白钨矿。自1967年投产至1970年的生产结果表明,此法存在生产过程较为复杂,生产成本较高,浮选指标不理想,精矿质量不易控制等缺点。鉴于这种情况,我厂广大革命职工遵照毛主席关于“打破洋框框,走自己工业发展道路”的指示,大胆实践,试验成功了用731氧化石腊皂在常温或低温下浮选白钨矿的方法,于1970年7月投入生产。
I selected mine for the skarn-type scheelite, copper, lead, zinc and more metal ores. Sulfide flotation tailings according to “Petrov method” flotation scheelite. From 1967 to 1970 production results show that this method exists in the production process is more complex, higher production costs, flotation index is not satisfactory, the quality of the concentrate is not easy to control and other shortcomings. In view of this situation, the vast majority of revolutionary workers in our factory, following Chairman Mao’s instructions on “breaking the framework of the world and taking the path of industrial development,” dared to practice boldly and successfully tested the flotation of scheelite with 731 oxide paraffin at ambient or low temperature Method, in July 1970 into production.