Improvement method of aluminum tailings slag based on ion exchange and crosslinking reaction

A technology of cross-linking reaction and ion exchange, applied in the field of soil conditioning materials or soil stabilizing materials, can solve the problems of high curing cost, low stiffness and strength, reduced curing strength and durability, etc. The ion exchange rate, the effect of improving the speed of improvement
CN113231442BActive Publication Date: 2022-05-24南宁市建筑规划设计集团有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
南宁市建筑规划设计集团有限公司
Publication Date
2022-05-24

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Abstract

The invention discloses a method for improving aluminum tailings slag based on ion exchange and cross-linking reaction, and belongs to the field of soil regulating materials or soil stabilizing materials. Aiming at the technical problems of insufficient aluminum tailings slag strength and serious alkali pollution, the invention proposes an aluminum tailings slag modifier and improvement steps. Aluminum tailings slag modifiers include alkali-reducing curing agents, ion-exchange stabilizers and particle-linking curing agents. The improvement step of aluminum tailings slag is the step of how to quantitatively use aluminum tailings slag improver. The invention promotes the consolidation of the aluminum tailings slag, improves the compactness of the aluminum tailings slag, makes the aluminum tailings slag a stable and continuous solid, and significantly improves the strength of the aluminum tailings slag. Moreover, the alkalinity of the aluminum tailings slag is reduced, and the pollution to the environment is reduced.
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Description

technical field

[0001] The invention relates to the field of soil regulating materials or soil stabilizing materials, in particular to a method for improving aluminum tailings slag based on ion exchange and cross-linking reactions. Background technique

[0002] While the aluminum industry is rich in aluminum, it is accompanied by a large amount of aluminum tailings slag output. Aluminum tailings slag or red mud slag. Aluminum tailings slag is generally regarded as mining solid waste, which is piled up in tailings ponds or low-lying places after simple treatment or no treatment. This will occupy land, destroy vegetation, block water bodies, pollute surrounding air, soil, water sources, and endanger human health. Unreasonable accumulation of tailings can easily lead to safety problems, such as tailings pond dam failure and landslide accidents. For the sake of public safety, saving resources, and protecting the environment, aluminum tailings slag can be used after treatment,...

Claims

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