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用控制氧化还原电位(Eh)来进行选择性浮选的研究报道已有不少。这些研究大部分表明,用黄药类捕收剂浮选黄铜矿、黄铁矿、闪锌矿和方铅矿时,Eh有很大的影响,但在选择性浮选时,Eh对获得最高矿物回收率和选矿效率的影响也还有一些不同的观点。在本文中,对土耳其某种有典型特性的复合硫化矿进行试验室浮选试验时,研究了矿浆电位的控制方法及其对Cu粗选的影响,研讨了用改变pH、添加氧化剂或还原剂、充气搅拌、充氧、充氮等控制矿浆电位的方法。结果表明,铜的浮选与随pH变化而变化的矿浆电位有一定的关系,通过改变pH调整点、浮选充气种类和混合使用捕收剂等操作条件有可能获得较高的铜的回收率和品位。但仍未能找到浮选指标与矿浆电位之间的基本关系。
There are a lot of reports about the selective flotation by controlling the redox potential (Eh). Most of these studies show that Eh has a large effect on the flotation of chalcopyrite, pyrite, sphalerite and galena with xanthate collectors, but Eh has been found to have gained significant gains in selective flotation The impact of maximum mineral recovery and beneficiation efficiency is also somewhat different. In this paper, we studied the control method of pulp potential and its effect on the Cu roughening in a laboratory flotation test of some typical sulphide ores in Turkey. The effects of changing pH, adding oxidant or reducing agent , Aerated stirring, oxygenation, nitrogen and other methods to control the pulp potential. The results show that the flotation of copper has a certain relationship with the pulp potential changing with the change of pH. It is possible to obtain higher recoveries of copper by changing the pH adjustment point, the type of flotation aeration and the use of a collector And taste. However, the basic relationship between flotation indices and pulp potential has not yet been found.