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Chemical activator for improving activity of coal gangue

A technology of activator and coal gangue, which is applied in the field of chemical activators, can solve problems such as coal gangue limitation and overall structural strength loss, and achieve the effects of reducing burden, increasing application value, and making up for strength loss

Inactive Publication Date: 2021-02-12
安徽滨江新型墙材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amount of doping coal gangue in building energy-saving insulation materials can only be a small amount, because a large amount of doping will lead to the loss of overall structural strength
In this regard, there is no targeted chemical activator to stimulate its activity, which greatly limits the application of coal gangue in the field of building materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A chemical activator for improving the activity of coal gangue is prepared from the following components in parts by weight: 16 parts of calcium dihydrogen phosphate, 90 parts of modified attapulgite, 5.0 parts of copper sulfate, 4.2 parts of potassium sulfate, 1.2 parts of boric acid, 3.4 parts of magnesium sulfate;

[0014] The preparation method of the modified attapulgite is as follows: grind the attapulgite to pass through a 35-mesh sieve, add perlite powder with a mass ratio of 1.7%, mix it evenly, place it in a crucible, and send it into a muffle furnace , calcined at 370°C for 4 hours, cooled naturally with the furnace, added water to prepare a slurry with a solid content of 74%, and added 0.11 times the volume of dioctadecyl dimethyl chloride with a mass concentration of 0.65% to the slurry Ammonium aqueous solution, stirred at 140 rpm for 30 minutes, continued ultrasonic treatment for 10 minutes, then placed in a water bath at 60°C, stirred at constant tempera...

Embodiment 2

[0020] A chemical activator for improving the activity of coal gangue, which is made of the following components in parts by weight: 17 parts of calcium dihydrogen phosphate, 93 parts of modified attapulgite, 5.5 parts of copper sulfate, 4.4 parts of potassium sulfate, 1.3 parts of boric acid, 3.4 parts of magnesium sulfate;

[0021] The preparation method of the modified attapulgite is as follows: grind the attapulgite to pass through a 40-mesh sieve, add perlite powder with a mass ratio of 1.8%, mix it uniformly, place it in a crucible, and send it into a muffle furnace , calcined at 375°C for 4.5 hours, cooled naturally with the furnace, added water to prepare a slurry with a solid content of 75%, and added 0.12 times the volume of dioctadecyl dimethyl chloride with a mass concentration of 0.68% to the slurry Ammonium aqueous solution, stirred at 145 rpm for 35 minutes, continued ultrasonic treatment for 12 minutes, then placed in a water bath at 65°C, stirred at constant t...

Embodiment 3

[0027] A chemical activator for improving the activity of coal gangue, which is made of the following components in parts by weight: 19 parts of calcium dihydrogen phosphate, 95 parts of modified attapulgite, 6.0 parts of copper sulfate, 4.6 parts of potassium sulfate, 1.4 parts of boric acid, 3.8 parts of magnesium sulfate;

[0028] The preparation method of the modified attapulgite is as follows: grind the attapulgite to pass through a 45-mesh sieve, add perlite powder with a mass ratio of 1.9%, mix it evenly, place it in a crucible, and send it into a muffle furnace , calcined at 380°C for 5 hours, cooled naturally with the furnace, added water to prepare a slurry with a solid content of 77%, and added 0.13 times the volume of dioctadecyl dimethyl chloride with a mass concentration of 0.70% to the slurry Aqueous ammonium solution, stirred at 150 rpm for 40 minutes, continued ultrasonic treatment for 15 minutes, then placed in a 70°C water bath, stirred at constant temperatu...

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PUM

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Abstract

The invention relates to the technical field of new material processing, and discloses a chemical activator for improving the activity of coal gangue, which is used for activating the activity of a prepared chemical activator when the coal gangue is used for processing a building thermal insulation material, so that the strength loss caused in later processing can be compensated, and the comprehensive material achieves excellent performance. The utilization rate of coal gangue is increased, the cost of building materials is reduced, the burden on the environment is reduced, and the applicationvalue of waste solid materials is increased.

Description

technical field [0001] The invention belongs to the technical field of new material processing, and in particular relates to a chemical activator for improving the activity of coal gangue. Background technique [0002] Coal gangue is solid waste discharged during the coal mining process and coal washing process. It is a black-gray rock with low carbon content and harder than coal that is associated with coal seams during the coal formation process. Including the excavation gangue during the roadway excavation, the gangue extracted from the roof, floor and interlayer during the mining process, and the gangue picked out during the coal washing process. Its main components are Al2O3 and SiO2, and it also contains varying amounts of Fe2O3, CaO, MgO, Na2O, K2O, P2O5, SO3 and trace rare elements (gallium, vanadium, titanium, cobalt). [0003] The application of coal gangue in the field of building material processing and manufacturing can significantly improve the performance and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B22/16
CPCC04B40/0039C04B22/00C04B22/16C04B22/147C04B22/142C04B22/0013
Inventor 丁玉龙
Owner 安徽滨江新型墙材有限公司
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