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渣漿泵加溫氧化抑制方法
使用氧化劑作為抑制劑存在的主要問題是:當(dāng)礦中還原性物質(zhì)很多時，其耗量大，不經(jīng)濟，因此加溫攪拌抑制方法應(yīng)運而生。該法可不用氧化制，礦漿溫度為40- 50C碳酸鈉調(diào)漿至pH為7~9并加以攪拌。某高硫高砷含金黃鐵礦，原礦金品位為10g/t。砷以毒砂形式存在，品位為4.79%，硫和鐵含量分別為33. 73%和47.3%，經(jīng)細磨的礦漿加溫至45C，攪拌0.5h,用丁黃藥150g/t和2號油25g/t進行硫砷分選，經(jīng)一粗三精，獲得金硫混合精礦，其中砷為0.45%，硫為47.35%， 金為23.05g/t， 砷脫除率為97.2%金硫混合精礦用石灰抑制黃鐵礦浮金，浮選金硫后尾礦主要是磁黃鐵礦和毒砂，弱磁選得合格磁硫鐵礦精礦，磁選尾礦中的毒砂經(jīng)硫酸銅活化，黃藥捕收得金砷精礦。渣漿泵廠家
需要指出的是:在采用上述三種氧化抑制方法的過程中，不僅要控制氧化劑的濃度，而且要控制好氧化時間、攪拌強度、攪拌時間以及礦漿溫度等，否則不僅達不到理想的分選效果，而且還會惡化浮選過程。例如，攪拌時間的長短，不僅使礦物表面性質(zhì)發(fā)生變化而影響其可浮性，而且還影響礦漿中的離子組成，而溶液中的離子組成對礦物的分選起著很大的作用，所以需要調(diào)整好攪拌時間，調(diào)節(jié)好礦漿中的離子組成，使之有利于
The method of heating and oxidation inhibition of slurry pump
The main problem of using oxidant as inhibitor is: when there are many reducing substances in the ore, its consumption is large and uneconomical, so the method of heating and stirring inhibition came into being. This method does not need to be oxidized. The pulp temperature is 40-50c sodium carbonate, the pulp is adjusted to pH 7-9 and stirred. A high sulfur and high arsenic gold bearing pyrite with a gold grade of 10G / T. Arsenic exists in the form of arsenopyrite, with a grade of 4.79%, sulfur and iron contents of 33.73% and 47.3% respectively. The finely ground pulp is heated to 45C, stirred for 0.5h, and then separated with 150g / T of butyl xanthate and 25g / T of No.2 oil. After one roughing and three refining, a mixed concentrate of gold and sulfur is obtained, in which arsenic is 0.45%, sulfur is 47.35%, gold is 23.05g/t, and arsenic removal rate is 97.2%. The mixed concentrate of gold and sulfur suppresses pyrite flotation with lime The tailings after flotation of gold and sulfur are mainly pyrrhotite and arsenopyrite. Qualified magnetite concentrate is obtained by weak magnetic separation. Arsenopyrite in magnetic separation tailings is activated by copper sulfate, and gold arsenic concentrate is obtained by xanthate collection. Slurry pump manufacturer
It should be pointed out that in the process of adopting the above three kinds of oxidation inhibition methods, not only the concentration of oxidant, but also the oxidation time, stirring intensity, stirring time and pulp temperature should be controlled, otherwise not only the ideal separation effect can not be achieved, but also the flotation process can be deteriorated. For example, the length of mixing time not only changes the surface properties of minerals and affects their floatability, but also affects the ion composition in the pulp. The ion composition in the solution plays a great role in the separation of minerals, so it is necessary to adjust the mixing time, adjust the ion composition in the pulp and make it beneficial to the flotation
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