Acetic acid triethanolamine ester as well as preparation and application thereof

Abstract

The invention discloses acetic acid triethanolamine ester which comprises monoacetic acid triethanolamine ester, diacetic acid triethanolamine ester and triacetic acid triethanolamine ester. The acetic acid triethanolamine ester is prepared by taking triethanolamine and acetic acid (acetic anhydride) as raw materials to carry out dehydration reaction at 100-140 DEG C under the action of a catalyst. The invention also discloses an application of the acetic acid triethanolamine ester as a cement grinding assistance reinforcing agent in the grinding production of cement, and the adding amount ofthe acetic acid triethanolamine ester is 0.006-0.02 percent of the total weight of the cement. The acetic acid triethanolamine ester has favorable grinding assistance reinforcing effect on the cement,has less dosage, no corrosion and low cost and can effectively improve the quality of the cement and further reduce the production cost of the cement; compared with the common triethanolamine grinding assistance agent, the acetic acid triethanolamine ester can obviously increase the specific surface area of the cement and improve the strength of the cement under the same condition.

Description

technical field [0001] The invention relates to a triethanolamine acetate, a preparation method thereof and an application in cement grinding production. Background technique [0002] Grinding is an important link in cement production. At present, most cement enterprises in my country use ball mills to grind cement clinker, which not only consumes a lot of energy and has low efficiency, but also has many coarse particles in the grinding products, and the particle size distribution is unreasonable, which affects the quality of cement. In order to improve 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] At present, most cement manufacturers use grinding aids, but the application effect is not satisfactory. The commonly used grinding aid in China is mainly composed of triethanolamine and other additives. Although it has a certain grinding aid effect and im...

AI Technical Summary

Problems solved by technology

The commonly used grinding aid in China is mainly composed of triethanolamine and other additives. Although it has a certain grinding aid effect and improves the early strength of cement, the later strength is poor, and the price of triethanolamine is relatively expensive. The cost of use is too high

[0004] After searching, the research papers and patents of using triethanolamine acetate to replace the commonly used triethanolamine grinding aids in cement grinding production to enhance the grinding aid effect have not been reported.

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