Process of synthesizing comprehensive water reducer by using hexa-carbon monomer

A comprehensive, water-reducing agent technology, applied in the field of water-reducing agent synthesis, can solve problems such as weak slump retention and low water-reducing rate, and achieve the effects of improving construction performance, convenient operation, and simple process

Inactive Publication Date: 2019-04-09
湖南加美乐素新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the improvement of concrete engineering requirements, the contradiction between the higher durability index requirements of high-performance concrete (HPC) and the deterioration of sand and gravel mixture has become increasingly acute. weak performance defect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A process for synthesizing a comprehensive water-reducing agent using six carbon monomers, the specific steps are as follows:

[0027] (1) Prepare 450kg of bottom water in the reactor, pump in 2993kg of six-carbon monomer, and stir evenly;

[0028] (2) During production in summer, turn on the heat exchanger cooling water to cool the bottom material and control the bottom material temperature at 8°C; in winter production, pass steam to control the bottom material temperature at 24°C;

[0029] (3) Preparation of solution A: prepare 450kg of bottom water in the batching tank of solution A, then pump in 102kg of acrylic acid, and finally put in 24kg of hydroxypropyl ester, and stir it evenly for use;

[0030] (4) Preparation of solution B: prepare 500kg of bottom water in the batching tank of solution B, and then pump in 10.4.6kg of reducing agent containing ferrous ions, stir evenly and pump into solution B in the drip tank for use;

[0031] (5) Pump 170kg of the prepared A solution...

Embodiment 2

[0037] A process for synthesizing a comprehensive water-reducing agent using six carbon monomers, the specific steps are as follows:

[0038] (1) Prepare 460kg of bottom water in the reactor, pump in 3060kg of six-carbon monomer, and stir evenly;

[0039] (2) In summer production, turn on the heat exchanger cooling water to cool the bottom material, and control the bottom material temperature at 10℃; in winter production, pass steam to control the bottom material temperature at 25℃;

[0040] (3) Preparation of solution A: prepare 460kg of bottom water in the batching tank of solution A, then pump in 105kg of acrylic acid, and finally put in 25kg of hydroxypropyl ester, stir it evenly for use;

[0041] (4) Prepare solution B: prepare 600kg of bottom water in the batching tank of solution B, and then pump in 12.5kg of reducing agent containing ferrous ions, stir evenly and pump into solution B in the dripping tank for use;

[0042] (5) Pump 180kg of the prepared A solution into the A solu...

Embodiment 3

[0048] A process for synthesizing a comprehensive water-reducing agent using six carbon monomers, the specific steps are as follows:

[0049] (1) Prepare 470kg of bottom water in the reactor, pump in 3126kg of six-carbon monomer, and stir evenly;

[0050] (2) During production in summer, turn on the heat exchanger cooling water to cool the bottom material and control the bottom material temperature at 12°C; in winter production, pass steam to control the bottom material temperature at 26°C;

[0051] (3) Preparation of solution A: prepare 470kg of bottom water in the batching tank of solution A, and then pump 108kg of acrylic acid, and finally put in 26kg of hydroxypropyl ester, and stir well for use;

[0052] (4) Preparation of solution B: prepare 700kg of bottom water in the batching tank of solution B, and then pump in 114.6kg of reducing agent containing ferrous ions, stir evenly and pump into solution B dripping tank for use;

[0053] (5) Pump 190 kg of the prepared A solution into ...

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Abstract

The invention discloses a process of synthesizing comprehensive water reducer by using a hexa-carbon monomer. The process comprises the following specific steps: preparing 4560 kg of bottom water in areaction kettle, pumping 3060 kg of the hexa-carbon monomer, and uniformly stirring the mixture; in summer production, starting heat exchanger cooling water to cool a bed charge, and controlling thetemperature of the bed charge at 8-12 DEG C; in winter production, introducing steam, and controlling the temperature of the bed charge at 24-26 DEG C, wherein the temperatures in the reaction processare controlled as follows: the temperature of the whole reaction system is controlled at 10-20 DEG C in summer and the temperature of the whole reaction system is controlled at 25-30 DEG C in winter.By carrying out low-temperature production with a diethylene glycol monovinyl ether, the obtained product is wide in adaptability, can be suitable for various gel materials, has water reducing and slump preventing functions, and can improve the construction performance of concrete. The compounding cost of the water reducer can be saved, the process is simple and convenient to operate, no wastes are available in the production process, and the process is environment-friendly and reliable, and industrial production on a large scale is facilitated.

Description

Technical field [0001] The invention relates to the technical field of water-reducing agent synthesis, in particular to a process for synthesizing a comprehensive water-reducing agent using six-carbon monomers. Background technique [0002] In recent years, my country's road, railway, airport, water conservancy and other infrastructure construction has increased at a relatively high rate. In order to better meet the needs of engineering, polycarboxylic acid water-reducing agent is widely used as the most important concrete admixture. [0003] Unsaturated polyether is used as the main raw material of polycarboxylic acid water reducer. Commonly used are allyl alcohol, isopentenol, and methallyl alcohol as raw materials to directly polymerize with ethylene oxide to obtain a polyether product with a certain molecular weight. . However, with the improvement of concrete engineering requirements, the contradiction between the higher durability index requirements of high performance conc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F216/14C08F220/06C08F220/20C04B24/26C04B103/30
CPCC04B24/2688C04B2103/30C08F216/1416C08F220/06C08F220/20
Inventor 王伟廖声金李武龙威
Owner 湖南加美乐素新材料股份有限公司
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