Partition wall slat prepared from red mud and preparation method thereof

Abstract

The invention relates to a partition wall strip, in particular to a partition wall strip prepared from red mud and a preparation method thereof. It is made of raw materials including the following weight percentages: 55%-80% of red mud, 10%-30% of aggregates and 5%-25% of admixtures, and the admixtures include the following ingredients in parts by weight: 65-80 parts of silicate , 5-10 parts of borate, 5-10 parts of sulfate, 1-5 parts of phosphate, 1-3 parts of hydroxide, 3-5 parts of halogen salt and 1-5 parts of lignosulfonate. The red mud in the partition wall slab prepared by the present invention can directly or indirectly undergo chemical modification of the particle surface, combination of intergranular substances, formation of gel substances and formation of various crystal structure substances under the action of admixtures; The prepared partition wall slab has the characteristics of high anti-bending load self-weight multiple, high compressive strength, high softening coefficient and the like; the invention also provides a preparation method thereof, which is low in cost and environment-friendly.

Description

technical field [0001] The invention relates to a partition wall strip, in particular to a partition wall strip prepared from red mud and a preparation method thereof. Background technique [0002] Because the chemical alkali combined with red mud is difficult to remove and the content is large, and it also contains fluorine, aluminum and other impurities, it has been difficult to carry out harmless utilization of red mud. Experts from all over the world have conducted a lot of scientific research on the comprehensive utilization of red mud, but such research has made little progress. Therefore, the treatment and comprehensive utilization of red mud residue has become a worldwide problem. [0003] However, with the development of the aluminum industry, the amount of red mud discharged from the production of alumina is also increasing, and a series of problems caused by stockpiling and disposal will follow It has caused serious environmental problems. [0004] Most of the ...

AI Technical Summary

Problems solved by technology

Sewage with high alkalinity seeps into the ground or enters the surface water, which increases the pH value of the water body, so that it exceeds the corresponding national standard. At the same time, because the pH value often affects the toxicity of the compounds in the water, it will also cause more serious water pollution.

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