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A kind of polymer slag grinding aid and its preparation method and application

A polymer and grinding aid technology, applied in the field of cement manufacturing, can solve problems such as unstable grinding aid effect, mediocre effect of small molecule compound grinding aid, complex composition, etc., to improve slag activity index, improve grinding aid efficiency, The effect of increasing the activity index

Inactive Publication Date: 2016-01-20
GUANGZHOU AUSPICIOUS CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effect of small molecule compound grinding aids is average, and the composition is complex, and the grinding aid effect is unstable

Method used

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  • A kind of polymer slag grinding aid and its preparation method and application
  • A kind of polymer slag grinding aid and its preparation method and application
  • A kind of polymer slag grinding aid and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Put 149.0 grams of triethanolamine and 1.5 grams of p-toluenesulfonic acid into a three-necked flask, then add 107.8 grams of maleic anhydride, keep warm at 110oC and reflux for 3 hours to prepare triethanolamine maleate (GA).

[0025] (2) Put 94.6 grams of methacrylic acid, 0.9 grams of phosphorous acid, and 0.02 grams of hydroquinone into a four-necked flask, raise the temperature to 120oC and slowly add 149.0 grams of triethanolamine dropwise, and reflux for 3 hours to obtain methacrylic acid Triethanolamine ester (GZ).

[0026] (3) Add 247.0 grams of GA, 65.1 grams of GZ, 28.8 grams of acrylic acid, and 247.0 grams of water into a three-necked flask. After the temperature is raised to 70oC, 49.4 grams of ammonium persulfate aqueous solution (10.0% concentration) is evenly added dropwise, and the dropping time is 2 hours. After the addition, keep the temperature at 75°C for 2.5 hours, then cool down to 45°C, add NaOH to neutralize, and adjust the pH of the system...

Embodiment 2

[0028] (1) Put 149.0 grams of triethanolamine and 1.5 grams of p-toluenesulfonic acid into a three-necked flask, then add 117.6 grams of maleic anhydride, keep warm at 110°C, and reflux for 3 hours to prepare triethanolamine maleate.

[0029] (2) Put 103.2 grams of methacrylic acid, 1.0 grams of phosphorous acid, and 0.02 grams of hydroquinone into a four-necked flask, raise the temperature to 120oC and slowly add 149.0 grams of triethanolamine dropwise, and reflux for 4 hours to obtain methacrylic acid triethanolamine ester.

[0030] (3) Add 247.0 grams of GA, 65.1 grams of GZ, 28.8 grams of acrylic acid, and 259.0 grams of water into a three-necked flask. After the temperature is raised to 70oC, 49.4 grams of ammonium persulfate aqueous solution (10.0% concentration) is evenly added dropwise, and the dropping time is 2 hours. After the addition, keep the temperature at 75°C for 3 hours, then cool down to 45°C, add NaOH to neutralize, and adjust the pH of the system to about ...

Embodiment 3

[0032] (1) Put 149.0 grams of triethanolamine and 1.5 grams of p-toluenesulfonic acid into a three-necked flask, then add 107.8 grams of maleic anhydride, keep warm at 110°C, and reflux for 3 hours to prepare triethanolamine maleate.

[0033] (2) Put 94.6 grams of methacrylic acid, 0.9 grams of phosphorous acid, and 0.02 grams of hydroquinone into a four-necked flask, raise the temperature to 120oC and slowly add 149.0 grams of triethanolamine dropwise, and reflux for 2 hours to obtain methacrylic acid triethanolamine ester.

[0034] (3) Add 247.0 grams of GA, 65.1 grams of GZ, 57.6 grams of acrylic acid, and 255.0 grams of water into a three-necked flask. After heating up to 60oC, 50.0 grams of ammonium persulfate aqueous solution (concentration 10.0%) is evenly added dropwise, and the dropping time is 1.5 hours. After the addition, keep the temperature at 70°C for 4 hours, then cool down to 45°C, add NaOH to neutralize, and adjust the pH of the system to about 7-8.

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Abstract

The invention discloses a high-molecular slag grinding aid with the general formula shown in the specification. In the general formula, x is a value of 5-8000, and x:y:z is equal to 1:0.1-1:0.1-0.6. The invention aims at providing the high-molecular slag grinding aid capable of effectively shortening slag grinding time and improving slag hydration activity.

Description

technical field [0001] The invention relates to the technical field of cement manufacture, in particular to a polymer slag grinding aid, a preparation method and application thereof. Background technique [0002] Granulated blast furnace slag is the waste slag produced when smelting pig iron. It is mainly composed of calcium silicate and calcium aluminate. The cement concrete mixed with slag fine powder has low heat of hydration, rapid strength growth in the later period, excellent impermeability and corrosion resistance. Good and other advantages. [0003] However, slag contains more vitreous body, which is more difficult to grind than cement clinker, and the power consumption of grinding slag is 2 to 3 times that of grinding clinker. Grinding aids can reduce particle fineness, improve physical and chemical properties and reduce grinding power consumption. At present, the relatively common technologies at home and abroad are concentrated on small molecule grinding aids (s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F222/22C08F220/36C08F220/06C04B24/26C04B103/52
Inventor 杨东
Owner GUANGZHOU AUSPICIOUS CHEM