Reinforced cement grinding aid and preparation method thereof

A cement grinding aid, enhanced technology, applied in the field of cement grinding aids, can solve the problems of restricting the economic benefits and wider promotion of grinding aids, affecting the use effect of grinding aids, and high cost, so as to promote penetration expansion, The effect of fine fineness and simple operation

Inactive Publication Date: 2014-03-12
安徽新创建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the lack of performance of the main raw materials affects the use effect of grinding aids, and the high cost restricts the economic benefits and wider promotion of the grinding aid industry

Method used

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  • Reinforced cement grinding aid and preparation method thereof
  • Reinforced cement grinding aid and preparation method thereof
  • Reinforced cement grinding aid and preparation method thereof

Examples

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Embodiment 1

[0036] The enhanced cement grinding aid provided in this embodiment is composed of 25% by weight of mother liquor, 17.5% of sodium bicarbonate, 7.5% of industrial by-product salt and 50% of water; wherein, the mother liquor is composed of raw materials by weight. The percentage is composed of 45% sulfonated triethanolamine salt, 20% ethylene glycol, 20% sugar residue and 15% water. The chemical formula of sulfonated triethanolamine salt is:

[0037] (HOCH 2 CH 2 )N〔(CH 2 CH 2 )NH(HO)SO 2 〕 2 , Which is prepared by the sulfonation reaction of triethanolamine and sulfamic acid. The chemical reaction equation is as follows:

[0038] (HOCH 2 CH 2 ) 3 N+2〔(NH 2 )(HO)SO 2 〕→(HOCH 2 CH 2 )N〔(CH 2 CH 2 )NH(HO)SO 2 〕 2 +2H 2 O This embodiment also discloses a method for preparing the above-mentioned reinforced cement grinding aid, including the following steps:

[0039] (1) Preparation of sulfonated triethanolamine salt

[0040] Add 100g of triethanolamine and sulfamic acid in a molar ratio of...

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Abstract

The invention discloses a reinforced cement grinding aid. The reinforced cement grinding aid comprises the following raw materials by weight percent: 25% of mother liquor, 17.5% of sodium thiosulfate, 7.5% of industrial byproduct salt and 50% of water, wherein the mother liquor comprises the following components by weight percent: 45% of sulfonated triethanolamine salt, 20% of ethanediol, 20% of sugar dreg and 15% of water, the chemical formula of the sulfonated triethanolamine salt is (HOCH2CH2)N[(CH2CH2)NH(HO)SO2]2, the sulfonated triethanolamine salt is prepared from triethanolamine and sulphamic acid through sulfonation reaction, the chemical equation is as follows:(HOCH2CH2)3N+2[(NH2)(HO)SO2]->(HOCH2CH2)N[(CH2CH2)NH(HO)SO2]2+2H2O. The invention also discloses a preparation method for the reinforced cement grinding aid. The reinforced cement grinding aid has the advantages of low cost, better effect in assisting grinding, and improving the long-term strength of the cement.

Description

Technical field [0001] The invention relates to the technical field of cement grinding aids, in particular to an enhanced cement grinding aid and a preparation method thereof. Background technique [0002] In cement production, grinding is an important link. At present, most cement companies in my country use ball mills to grind cement clinker, which not only has high energy consumption and low efficiency, but also has many coarse particles and unreasonable particle size distribution, which affects cement quality. In order to increase the grinding efficiency, reduce energy consumption, and improve the performance of cement products, the use of cement grinding aids is a feasible and economical way. [0003] The main technical principles of cement grinding aids for grinding are: [0004] 1. Prevent merging, coalescence of particles and weakening of particle strength during the grinding process. [0005] Adding an appropriate amount of grinding aid to the crushed material, adsorbing on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/16C04B103/52
Inventor 胡国珍胡源渊周斯跃章敏
Owner 安徽新创建材科技有限公司
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