Composite additive applied in coal hard kaolin wet milling technology
A hard kaolin, wet grinding process technology, applied in the direction of silicon compounds, inorganic chemistry, non-metallic elements, etc., can solve the problems of complex synthesis process, influence of dissolution and dispersion state, and high cost
Inactive Publication Date: 2013-03-20
内蒙古嘉宾饮品有限公司
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Problems solved by technology
At present, the traditional admixture is composed of organic matter, the synthesis process is relatively complicated, and the cost is high, especially when the concentration of the ore liquid is ≥30%, and the temperature of the ore liquid is ≤25°C, the dissolution and dispersion state of the traditional organic admixture is greatly affected. Then affect the product whiteness and grinding efficiency
Method used
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Embodiment Construction
[0006] An example is described in detail below: Weigh 66 kg of tap water into the reactor, start stirring, control the speed at 65 to 72 rpm, and turn on the heating device at the same time, then weigh 25 kg of silicon-aluminum powder with a fineness ≥ 200 mesh, 5 % concentration of industrial hydrochloric acid 3kg, sequentially added to the reactor, under normal pressure, keep the temperature 85 ° C ± 2 ° C, react for 3 hours, after the reaction is completed, adjust the pH value to 6.8 with caustic soda solution, and then weigh the sodium alkylbenzene sulfonate Add 2.8kg, 1.8kg of polyoxyethylene phenol ether, and 1.4kg of polyoxyethylene amide into the reactor in turn, continue to stir, cool down to 65°C±2°C, and react for 7 hours under heat preservation. After the reaction is completed, cool down to room temperature to make For finished use.
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The invention discloses a composite additive applied in coal hard kaolin wet milling technology. The technical process comprises the following steps: placing running water in a reactor; starting stirring and starting a heating device; adding silicoaluminate powder material with fineness being greater than or equal to 200 meshes and industrial hydrochloric acid with concentration being 5% in turn; carrying out heat insulation at normal pressure and under the state of stirring; adjusting pH value after the completion of the reaction; adding alkyl benzene sodium sulfonate, polyoxyethylene phenolic ether and polyoxyethylene amide in turn after temperature reduction; cooling to room temperature after heat insulation for certain time to be used as finished product. The components of the composite additive are: silicoaluminate material, industrial hydrochloric acid, alkyl benzene sodium sulfonate, polyoxyethylene phenolic ether, polyoxyethylene amide and tap water.
Description
technical field [0001] The invention relates to a composite admixture used in the wet grinding process of coal series hard kaolin. Background technique [0002] At present, in the production process of coal-based hard kaolin at home and abroad, it is necessary to add admixtures in the wet grinding section to achieve the purpose of removing iron and titanium elements in the raw materials, so as to improve the whiteness of the product and improve the grinding efficiency of the wet grinding process. . At present, the traditional admixture is composed of organic matter, the synthesis process is relatively complicated, and the cost is high, especially when the concentration of the ore liquid is ≥30%, and the temperature of the ore liquid is ≤25°C, the dissolution and dispersion state of the traditional organic admixture is greatly affected. Then affect the product whiteness and grinding efficiency. Contents of the invention [0003] The technical problem to be solved in the p...
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IPC IPC(8): C01B33/20
Inventor 赵向军周永东翟福
Owner 内蒙古嘉宾饮品有限公司