Beneficiation method for recovering monazite from seaside titanium zirconium sand

Abstract

The invention discloses a beneficiation method for recovering monazite from coastal titanium zircon sand, which comprises the following steps: carrying out first wet magnetic separation on the coastal titanium zircon sand, carrying out second wet magnetic separation on first non-magnetic ore, adding second magnetic ore into the first magnetic ore, and carrying out third wet magnetic separation, and the third non-magnetic ore is subjected to first dry type magnetic separation after being dried, and the fourth non-magnetic ore is subjected to second dry type magnetic separation, so that monazite concentrate is obtained. carrying out secondary wet magnetic separation on seaside titanium zirconium sand, recovering second magnetic conductive ore in first non-magnetic ore, carrying out secondary dry magnetic separation on the non-magnetic ore obtained after separating out the magnetic conductive ore through the first dry magnetic separation, further purifying the non-magnetic ore obtained after separating out the magnetic conductive ore through the first dry magnetic separation, and separating and removing possibly entrained non-magnetic ore to obtain monazite concentrate. By means of the steps, the mass percent of monazite in the obtained monazite concentrate is finally increased, the alternate mineral separation process of wet separation and dry separation is avoided, energy is saved, and meanwhile the problems of water pollution and the like are solved.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a mineral processing method for recovering monazite from seaside titanium-zircon sand. Background technique [0002] Due to the mineralization of seashore titanium-zirconium sand, it is usually associated with zircon sand, rutile, ilmenite, monazite and other minerals. In the process of separation and enrichment of zircon sand and rutile, a small amount of monazite in the wool sand is also enriched, and the content of monazite in seaside titanium-zircon wool sand is generally between 1-3%. In traditional titanium-zirconite beneficiation, since monazite is radioactive and its content is small, it is more important than the purification and separation of zircon sand, rutile and ilmenite with more content, and monazite is dispersed in various products or tailings. Sand, not recovered separately. Since monazite is one of the rare metal mines with high value, this leads t...

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Problems solved by technology

The separation indicators of the above separation methods are not ideal, either the product grade is low, or the recovery rate is low, and at the same time, due to the problems of equipment corrosion and environmental protection management in flotation, it is difficult to promote or apply on a large scale

Serious loss of precious resources, and at the same time have a bad impact on the environment; for the existing monazite recovery technology with low content, high value and radioactivity in seashore titanium-zirconium ore, the overall problem is that the single magnetic separation recovery rate is low, and the shaker gravity separation Low efficiency and heavy environmental pollution of flotation water; adopting the combined beneficiation process of magnetic separation-gravity separation-magnetic separation-electric separation-flotation, the recovery process of monazite is complicated and not concentrated, resulting in low yield, low efficiency and high energy consumption , the flotation process is likely to cause water pollution and other problems

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