低品位钼矿煤油气溶胶加药浮选规律的研究

摘要

本研究针对某低品位钼矿,煤油捕收剂采用气溶胶形式进行加药,主要从磨矿细度、矿浆浓度、pH值和起泡剂用量等浮选工艺条件,对煤油气溶胶加药浮选过程的影响进行了系统的研究.试验结果表明:磨矿细度、pH值、矿浆浓度和起泡剂用量等浮选工艺条件对于传统浮选和气溶胶浮选过程的影响规律基本相似,但两种浮选技术对于各浮选工艺条件的适应能力存在较大差异.与传统浮选技术相比,气溶胶浮选技术对于磨矿细度和矿浆浓度的变化,表现出了较好的适应能力；气溶胶浮选技术对于pH值的变化没有体现出良好的适应能力,只有在合适的pH值条件下才能发挥其优势；起泡剂用量对于气溶胶浮选影响较大,用量过少不利于煤油气溶胶加药浮选,良好的成泡环境对于气溶胶浮选过程是有利的.%In this paper,the effect of flotation conditions which include grinding fineness,pulp density, pH value and frother dosage on the aerosol flotation of a low-grade molybdenum ore were studied. In the aerosol flotation process,kerosene,the primary collector of molybdenum,was added into the ore pulp in the form of aerosol. The results revealed that the effect law of grinding fineness,pH value,the pulp density and frother dosage on traditional flotation process and aerosols flotation process were similar, but the adaptability of the two flotation methods for the change flotation conditions was different. Compared with the traditional flotation technology, the adaptability of the aerosol flotation technology for the change of grinding fineness and pulp density was better,but was worse for the change of pH value. The effect of rother dosage on aerosol flotation process was greater, and good bubble environment was favorable for aerosol flotation process.