Foaming agent for rare earth ore dressing and normal temperature mineral separation processing for low grate refractory rare earth ore

Abstract

The invention provides a foaming agent for rare earth ore dressing and normal temperature mineral separation processing for low grate refractory rare earth ore, and particularly relates to a low grade normal temperature mineral separation processing with large slurry containing, fine mineral disseminated extent, complex mineral constitute, and 3% REO grade. The processing provided by the invention is characterized in that the 3% REO grade low grade rare earth ore is taken as the raw material, the mineral pulp temperature ranges from 10 DEG C to 25 DEG C, the flotation pre-enrichment-wet magnetic separation purification beneficiation method is adopted, so as to obtain rare earth ore concentrate with high grade and high recovery. The invention has the marked advantages that the flotation pulp temperature has a wide range of application, needs no warming, is short in processing process, and can remarkably improve the recovery of low grade complex rare earth ore.

Description

technical field [0001] The invention relates to rare earth ore beneficiation technology, in particular to a foaming agent for rare earth ore beneficiation and a normal temperature beneficiation process for low-grade refractory rare earth ore with REO grade < 3%. Background technique [0002] Rare earth is known as the treasure house of high-tech and functional materials in the new century, and it is a strategic element for the development of high-tech. my country is very rich in rare earth resources, and the proven rare earth reserves account for about 80% of the world's total reserves. At the same time, my country is also one of the countries with the fastest growth in rare earth consumption in the world. It is expected that the demand for rare earths will continue to grow in the future. Therefore, the research on rare earth beneficiation technology is of great significance to the development of rare earth industry. [0003] The foaming agent can reduce the surface ten...

AI Technical Summary

Problems solved by technology

Chinese patent documents provide two kinds of foaming agent formulations for rare earth ore beneficiation, but the composition is relatively complicated, which brings new problems to the treatment of process wastewater

The process reagent is expensive, and heating is required during the flotation operation, which consumes a lot of energy, and the operating conditions are harsh, difficult to control, and difficult to obtain ideal production indicators.

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