Kaolin tailings after sodium

Abstract

The invention discloses a sodium-modified kaolin tailing. The technical scheme is as follows: the sodium-modified kaolin tailing is composed of kaolin tailing, magnesium oxide, sodium carbonate, instant sodium silicate, polyvinyl alcohol and hydroxypropyl methylcellulose. The production method of the sodium-modified kaolin tailing comprises the following steps: inputting the sodium-modified kaolin tailing materials into a mill, and milling into powder, thereby obtaining the sodium-modified kaolin tailing. The sodium-modified kaolin tailing fully utilizes the solar energy, the alternate rain and wind and the four seasons, promotes the natural weathering effect on the kaolin tailing raw ores, enhances the disintegration effect on the kaolin tailing raw ores, and accelerates the dispersion of various minerals in the tailing raw ores. The sodium-modified kaolin tailing is soft, and can be easily dispersed and suspended in water, and has better plasticity, binding property, electrical insulation properties, fire resistance and other physicochemical properties. The sodium-modified kaolin tailing is suitable for producing fillers of papermaking, paints, ceramics, rubber and refractory materials.

Description

technical field [0001] The invention relates to sodium treatment, in particular to a sodium-treated kaolin tailings. Background technique [0002] Kaolin is a kind of clay and clay rock mainly composed of kaolinite clay minerals. It is mostly dull. When it is pure, it is white and fine. If it contains impurities, it can have gray, yellow, brown and other colors. The appearance can vary depending on the cause. It is loose soil block and compact rock block. [0003] Based on the genesis of kaolin deposits, kaolin deposits are divided into three types according to the differences in ore-forming geology, geographical conditions, deposit scale, ore body shape and occurrence characteristics, and ore material components reflected in different mineralization processes. : Hard kaolin: hard, no plasticity, plastic after crushing and fine grinding; soft kaolin: soft, strong plasticity, sandy mass fraction ≤ 50%; sandy kaolin: soft, weak plasticity, sandy Quality fraction ≥ 50%. [0...

AI Technical Summary

Problems solved by technology

Many tailings ponds have been used for overdue periods or overloaded, or even operated in violation of regulations, which has caused great potential safety hazards in tailings ponds, posing a serious threat to people's property and life safety in surrounding areas

[0007] Kaolin produces a large amount of tailings during the mining process. Most of the kaolin tailings are hard kaolin, and the production utilization rate is low.