Collecting agent composition for flotation recovery of monazite from zirconite heavy sand

Abstract

The invention provides a collecting agent composition for flotation recovery of monazite from zirconite heavy sand, wherein the collecting agent composition comprises, by weight, 35-50 parts of an agent A, 10-30 parts of an agent B, 20-40 parts of sodium p-ethylmandelate and 1-2 parts of methyl isobutyl carbinol. According to the invention, the collecting agent composition is high in selectivity and good in collecting capacity, and can effectively recover monazite in zirconite heavy sand; and compared with the traditional flotation agent, the collecting agent composition of the invention can improve the grade and the recovery rate of rare earth oxides in monazite concentrate by more than 1% and more than 3% respectively, improve the grade of zirconite heavy sand by more than 2%, and reducethe flotation temperature by 10-15 DEG C.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a collector composition used for flotation recovery of monazite from zircon heavy sand. Background technique [0002] High-grade zircon concentrates generally come from seaside placer deposits. At present, combined processes such as electric separation, gravity separation, and magnetic separation are usually used to process seaside placerite deposits to obtain higher-grade zirconite placer deposits. However, in recent years, due to the increasing complexity of seaside placer properties and the low separation accuracy of physical beneficiation technology, the other fine particles in zircon heavy sand obtained by the traditional combined process of electric separation, gravity separation and magnetic separation The content of grain size associated minerals increases gradually, especially fine-grained monazite minerals associated with zircon appear in large quantities in ...

AI Technical Summary

Problems solved by technology

However, in recent years, due to the increasing complexity of seaside placer properties and the low separation accuracy of physical beneficiation technology, the other fine particles in zircon heavy sand obtained by the traditional combined process of electric separation, gravity separation and magnetic separation The content of associated minerals in grain size increases gradually, especially the fine-grained monazite mineral associated with zircon appears in large quantities in zircon heavy sand

The inclusion of monazite in zircon heavy sand not only reduces the grade of zircon but also causes a lot of waste of rare earth minerals, which seriously affects the recovery rate of rare earth elements in seaside placer

At present, the flotation process is the key process for recovering the fine-grained monazite associated with zircon heavy sand and improving the grade of zircon, while the effect of the flotation process is the choice of collector, monazite The conventional flotation collectors are fatty acid agents with long hydrocarbon chains. The interaction between this type of agents and metal ions on the surface of monazite minerals is mainly physical. Wen, which greatly increases the cost of sorting

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