A kind of polyaluminum chloride waste slag dry-mixed mortar and preparation method thereof

A technology of polyaluminium chloride and dry-mixed mortar, which is applied in the direction of solid waste management, sustainable waste treatment, and climate sustainability. The activity can not be well utilized and other problems, to achieve the effect of improving bleeding and segregation performance, good water retention and strong adsorption
CN111978050BActive Publication Date: 2022-06-03HENAN POLYTECHNIC UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HENAN POLYTECHNIC UNIV
Publication Date
2022-06-03

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Abstract

The invention discloses a polyaluminum chloride waste slag dry-mixed mortar and a preparation method thereof. The dry-mixed mortar comprises the following raw materials in parts by mass: 4-8 parts of heat-activated polyaluminum chloride waste slag, 23-25 ​​parts of cement, 55-60 parts of sand, 4-6 parts of fly ash, 0.05-0.15 parts of defoamer, 0.20-0.22 parts of water reducing agent, and polymer emulsion of 5%-9% of the total mass of the above raw materials. The present invention uses industrial waste polyaluminum chloride waste slag and fly ash to replace high-energy-consuming cement to prepare cement mortar, which can effectively reduce the large-scale stacking of polyaluminum chloride waste slag and reduce the use of high-energy-consuming cement, and has good social and economic benefits. The preparation method of the polyaluminum chloride waste slag dry-mixed mortar is simple and low in cost, is beneficial to industrial production and popularization, can significantly improve the resource utilization of the polyaluminum chloride waste slag, and is of great significance in reducing construction costs, reducing environmental pollution, and the like.
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Description

technical field

[0001] The invention relates to a dry-mixed mortar of polyaluminum chloride waste residue and a preparation method thereof, belonging to the technical field of resource utilization of industrial waste. Background technique

[0002] Polyaluminum chloride waste residue is a by-product of industrial production of polyaluminum chloride. Polyaluminum Chloride (PAC) is a high-efficiency flocculant in water treatment. There are many methods for producing polyaluminum chloride (PAC) at home and abroad. Commonly used The method is a two-step method of dissolving bauxite and calcium aluminate powder in acid, that is, bauxite and calcium aluminate powder react with hydrochloric acid or mixed acid under certain conditions to obtain liquid polyaluminum chloride (PAC), and the residual solid forms slag. About 0.5-1.0 tons of waste residue is produced for every 1 ton of polyaluminum chloride produced. With the gradual improvement of environmental protection requirements, t...

Claims

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