Alkali inhibitor for inhibiting saltpetering of red mud and preparation method thereof

Abstract

The invention provides an alkali inhibitor for inhibiting saltpetering of red mud and a preparation method thereof, and belongs to the technical field of red mud, the alkali inhibitor comprises the following raw materials by weight: 1-6 parts of a catalyst, 2-9 parts of a water reducer, 11-18 parts of sodium chloride, 7-15 parts of potassium chloride, 5-9 parts of magnesium chloride, 1-5 parts of citric acid, 15-26 parts of calcium chloride, 2-7 parts of boric acid, 1-3 parts of an antifoaming agent, and 10-19 parts of zeolite particles. The alkali inhibitor for saltpetering of red mud is mixed in red mud, and the alkali inhibitor can react with alkaline substances in red soil so that the overall alkalinity of the red soil is reduced, and the influence of too high alkalinity in the soil on later use and surrounding environment is prevented.

Description

technical field [0001] The invention belongs to the technical field of red mud, and in particular relates to an alkali inhibitor for inhibiting red mud efflorescence and a preparation method thereof. Background technique [0002] Red mud is industrial solid waste discharged from the aluminum industry when extracting alumina. It is called red mud because it contains a large amount of iron oxide and its appearance is similar to red soil. Due to different ore grades, production methods and technical levels, about 1.0-1.8 tons of red mud will be discharged for every 1 ton of alumina produced. As a major producer of alumina, China discharges millions of tons of red mud every year. With the stockpiling of red mud increasing and the pollution to the environment becoming more and more serious, it is urgent to maximize the resource utilization of red mud. [0003] In the production of the aluminum industry, red mud will be produced. The long-term accumulation of a large amount of r...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an alkali inhibitor for inhibiting red mud efflorescence and its preparation method, aiming to solve the problem in the prior art that red mud will be produced in the production of aluminum industry, and a large amount of red mud will be accumulated for a long time It needs to occupy a lot of land, and because the red mud contains a lot of alkaline liquid, if it seeps into the ground, it will cause serious pollution to the land and groundwater, which will easily cause environmental pollution and safety hazards.

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