2results about How to "Realize flotation separation" patented technology

The invention relates to a method for preparing low-iron quartz sand and high-quality feldspar from lepidolite tailings. The method is characterized by comprising the following steps: (1) grinding pegmatite type lepidolite tailings, and screening to obtain mineral particles with the particle size of less than or equal to 0.35 mm; (2) sequentially carrying out medium magnetic separation, high-intensity magnetic separation and high-intensity magnetic separation on the-0.35 mm minerals to obtain magnetic separation fine sand and magnetic separation tailings; (3) scrubbing the magnetic separation fine sand to obtain desliming fine sand with higher purity; (4) the desliming fine sand is subjected to three-section flotation, the ore pulp concentration of first-section flotation is 35%-40%, H2SO4 serves as a pH adjusting agent, the pH is adjusted to 2-5, and mixed amine serves as a collecting agent of 0.10-0.15 kg / t; the ore pulp concentration of the second-stage flotation is 25%-30%, H2SO4 is used as a pH regulator, the pH is regulated to be 1-3, and an anion and cation collecting agent is 0.10-0.15 kg / t; the ore pulp concentration of the third-section flotation is 25%-30%, H2SO4 is used as a pH regulator, the pH is regulated to 1-3, the use amount of an anion and cation collecting agent is 1.25-2.25 kg / t, and feldspar and quartz fine sand are obtained. The method has the advantages that the prepared quartz fine sand meets the index requirements of quartz for optical glass or photovoltaic glass, and meanwhile, feldspar products for high-whiteness glaze and feldspar products for float glass are obtained.

This invention relates to the field of mineral processing technology, and particularly to a depressant for molybdenum sulfide ore and a flotation separation method and application for copper-molybdenum sulfide minerals. The depressant comprises polyphenols; the polyphenols have the molecular formula C0.05. 32 H 30 O 11 The molecular weight is 590.57 g / mol, and the degree of polymerization is 2-11. The molybdenum sulfide mineral depressant is used for the flotation of copper-molybdenum sulfide minerals. The copper-molybdenum sulfide minerals contain chalcopyrite and molybdenite, with a mass ratio of 1-2:1. This invention provides a molybdenum sulfide mineral depressant and a flotation separation method and application for copper-molybdenum sulfide minerals. The aim is to solve the problems of high toxicity, high loss rate, and high intermingling of existing copper-molybdenum sulfide mineral separation flotation depressants, and to achieve effective separation of chalcopyrite and molybdenite.