3results about How to "Efficient flotation separation" patented technology

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.

The invention discloses a scheelite combined collecting agent and a preparation method and application thereof, and belongs to the technical field of mineral processing. The combined collecting agent comprises the following components in percentage by mass: 2%-5% of sucrose laurate, 85%-92% of C16-C18 fatty acid salt and 6%-10% of hexamethyldisiloxane. The combined collecting agent is applied to flotation of scheelite, and efficient recovery of scheelite can be achieved through closed-loop flotation of one-time roughing, three-time refining and two-time sweeping. According to the combined collecting agent, the problem that a traditional fatty acid collecting agent is poor in solubility is solved, the combined collecting agent is simple in preparation process, good in collecting performance and selectivity, good in dispersity and solubility and good in environmental protection property, and the grade and the recovery rate of scheelite concentrate can be remarkably improved.

The invention discloses a combined inhibitor for direct flotation of medium-low-grade phosphorite and application of the combined inhibitor, and belongs to the technical field of mineral processing flotation. The combined inhibitor comprises zinc sulfate, pyridine-2, 6-dicarboxylic acid and carboxymethyl cellulose. According to the combined inhibitor, separation of medium-low-grade phosphorite and calcium-silicon gangue minerals and efficient flotation and enrichment of phosphorite can be achieved by adopting the technological process of one-time roughing, two-time refining and one-time sweeping. Through the synergistic effect of the zinc sulfate, the pyridine-2, 6-dicarboxylic acid and the carboxymethyl cellulose, the inhibition capability and the selectivity on calcium-silicon gangue are remarkably improved; all the components in the combined inhibitor are green, environment-friendly and biodegradable flotation reagents, and the reagents are simple and convenient in the preparation process and convenient to store and transport. The method has important significance on efficient flotation enrichment and resource utilization of phosphorite resources.