Comprehensive utilization method of sandy kaolin tailings containing tourmaline, muscovite and quartz sand

Abstract

The invention belongs to the technical field of comprehensive utilization of tailings resources, and discloses a method for comprehensive utilization of sandy kaolin tailings containing tourmaline, muscovite and quartz sand. Grinding, fine-grained products are stirred and scrubbed, classified, screened, electromagnetic slurry magnetic separator, wet plate magnetic separator, vertical ring high gradient magnetic separator, shaking table, flotation machine, etc. Magnetic separation, re-election, flotation Combined beneficiation process to separate mica powder, kaolin, tourmaline, fragment grade mica, quartz sand and magnetic tailings and other products. The present invention adopts the combined beneficiation process of magnetic separation, gravity separation and flotation. While obtaining high-quality concentrates such as quartz sand, tourmaline and mica, the remaining kaolin is also recovered, and the selected iron silicate minerals can be used as building materials. Or cement raw materials, improve the comprehensive recycling rate of secondary resources of kaolin tailings, solve the problem of waste of secondary resources, and achieve high economic and social benefits.

Description

technical field [0001] The invention relates to the technical field of comprehensive utilization of tailings resources, in particular to a method for comprehensive utilization of sandy kaolin tailings containing tourmaline, muscovite and quartz sand. Background technique [0002] Kaolin is a very important non-metallic mineral that is common in nature and is widely used in ceramics, papermaking, coatings, pigments, glass, rubber, plastics, chemicals, medicine and other fields. Kaolin is mainly divided into three types: hard kaolin, soft kaolin and sandy kaolin. Among them, sandy kaolin contains quartz, feldspar, mica, tourmaline and other valuable minerals to varying degrees, and is associated with magnetite and ilmenite. , pyrite, plant fiber, organic peat and other impurities. [0003] Sandy kaolin beneficiation and purification methods are generally: raw ore-mixing-pulping-removing plant fibers-grading sand removal-magnetic separation-bleaching-press filtration dehydrati...

AI Technical Summary

Problems solved by technology

my country is a big kaolin producing country, and its kaolin mineral resources rank among the top in the world. The soft kaolin and sandy kaolin tailings produced every year occupy a large amount of valuable land resources, resulting in a serious waste of valuable minerals. It also cannot achieve the purpose of full and comprehensive utilization of secondary resources, and it is easy to cause secondary pollution of water quality, soil and air.

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