Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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

Active Publication Date: 2022-06-03
HENAN POLYTECHNIC UNIV +1
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These storage methods not only occupy a large amount of land and cause environmental pollution, but also make the available components in the waste slag unable to be rationally utilized, resulting in waste of resources, which seriously limits the further development of the current water purifier industry. It is the main trend of the utilization of polyaluminum chloride waste slag, and it can consume polyaluminum chloride waste slag in large quantities.
[0003] Since the PAC waste residue has a certain weak acidity, and the Cl in the PAC waste residue - The content is as high as 8.85%, so PAC waste residue cannot be directly used as a building material
In addition, although SiO in PAC waste 2 and Al 2 o 3 The content of SiO is not low, respectively 34.74% and 22.55%, but in acidic environment SiO 2 and Al 2 o 3 The chemical activity of PAC is not well utilized, so the utilization of PAC waste residue is greatly limited
In the prior art, there are few literatures on using polyaluminum chloride waste slag as raw material for resource utilization. Therefore, developing a cement mortar containing polyaluminum chloride waste slag and its preparation method is a problem to be studied by those skilled in the art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of polyaluminum chloride waste slag dry-mixed mortar and preparation method thereof
  • A kind of polyaluminum chloride waste slag dry-mixed mortar and preparation method thereof
  • A kind of polyaluminum chloride waste slag dry-mixed mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A polyaluminum chloride waste slag dry-mixed mortar, calculated in parts by mass, comprising the following raw materials: 8 parts of thermally activated polyaluminum chloride waste slag (calcined at a high temperature of 800° C. for 2 hours), 23 parts of PO42.5 ordinary Portland cement, medium sand 55 parts, 4 parts fly ash, 15 parts water, 0.05 part defoamer, 0.22 part water reducing agent.

[0041] The preparation method of polyaluminum chloride waste residue dry-mixed mortar is as follows: heat-activated polyaluminum chloride waste residue, PO42.5 ordinary Portland cement, fly ash, medium sand and defoamer are sequentially added to a mortar mixer, and stirred evenly ( 1-3min) to obtain a premix; then add the water reducing agent and water to the mortar mixer in turn, and stir evenly (1-5min) to obtain polyaluminum chloride waste slag dry-mixed mortar S-1.

Embodiment 2

[0043] A polyaluminum chloride waste slag dry-mixed mortar, calculated in parts by mass, comprising the following raw materials: 8 parts of thermally activated polyaluminum chloride waste slag (calcined at a high temperature of 800° C. for 2 hours), 23 parts of PO42.5 ordinary Portland cement, medium sand 55 parts, 4 parts fly ash, 15 parts water, 5 parts styrene-acrylic emulsion, 0.05 part defoamer, 0.20 part water reducing agent.

[0044] The preparation method of polyaluminum chloride waste residue dry-mixed mortar is as follows: adding heat-activated polyaluminum chloride waste residue, PO42.5 ordinary Portland cement, medium sand, fly ash and defoamer into a mortar mixer in turn, and stirring them evenly ( 1-3min) to obtain a premix; then add the styrene-acrylic emulsion, water reducing agent and water to the mortar mixer in turn, and stir evenly (1-5min) to obtain polyaluminum chloride waste residue dry-mixed mortar S-2.

Embodiment 3

[0046] A polyaluminum chloride waste slag dry-mixed mortar, calculated in parts by mass, comprising the following raw materials: 8 parts of thermally activated polyaluminum chloride waste slag (calcined at a high temperature of 800° C. for 2 hours), 23 parts of PO42.5 ordinary Portland cement, medium sand 55 parts, 4 parts of fly ash, 15 parts of water, 8 parts of styrene-acrylic emulsion, 0.05 part of defoamer, and 0.20 part of water reducing agent.

[0047] The preparation method of polyaluminum chloride waste residue dry-mixed mortar is as follows: adding heat-activated polyaluminum chloride waste residue, PO42.5 ordinary Portland cement, medium sand, fly ash and defoamer into a mortar mixer in turn, and stirring them evenly ( 1-3min) to obtain a premix; then add the styrene-acrylic emulsion, water reducing agent and water into the mortar mixer in turn, and stir evenly (1-5min) to obtain polyaluminum chloride waste residue dry-mixed mortar S-3.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
specific surface areaaaaaaaaaaa
strengthaaaaaaaaaa
strengthaaaaaaaaaa
Login to View More

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.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B2111/00017C04B14/06C04B18/08C04B18/0427C04B22/064C04B2103/302C04B22/143C04B24/26Y02W30/91
Inventor 徐平郑满奎龚健刘前途张敏霞丁亚红李新功张向冈王兴国张正阳王继远
Owner HENAN POLYTECHNIC UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com