A kind of production method of calcined kaolin with high hiding power

A technology of calcined kaolin and its production method, which is applied in the direction of aluminum silicate and silicate, can solve the problems of low hiding power and limit the amount of water-based paint added, and achieve high oil absorption, improved storage stability, and high whiteness Effect
CN104556078BActive Publication Date: 2016-09-28山西金宇科林科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
山西金宇科林科技有限公司
Publication Date
2016-09-28
Patent Text Reader

Abstract

The invention discloses a method for producing calcined kaolin with high covering power and belongs to the technical field of calcined kaolin. The invention provides a method for producing calcined kaolin which is high in whiteness, superfine in grain size and centralized in particle size distribution and has the advantages of high oil absorption amount and high covering power. The method for producing calcined kaolin with high covering power provided by the invention comprises the following steps: performing dosing, coarse crushing, milling, pulping, horizontal screwing, disc treatment, filter pressing and spray drying on coal gangue or kaolinite rock, crushing and reducing the aggregated spray, calcining for performing decarbonizing and whitening, crystal water removal and forming a gap structure, and finally, aggregating the depolymerized and calcined materials, thereby obtaining the finished product. The method disclosed by the invention is mainly applied to the aspect of kaolin.
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Description

technical field

[0001] The invention discloses a method for producing calcined kaolin with high hiding power, belonging to the technical field of calcined kaolin. Background technique

[0002] Titanium dioxide, a white pigment commonly used in the paint industry, has a high price, and it will cause relatively large chemical pollution to the environment during production and processing. Usually, natural mineral kaolin with stable chemical properties is used instead of white pigments such as titanium dioxide, which can reduce costs. Kaolin has a long history of application in the paint industry, but due to its low hiding power and other factors, its addition in water-based paints is limited. Therefore, it is necessary to improve it. Contents of the invention

[0003] In order to overcome the deficiencies in the prior art, a method for producing calcined kaolin with high whiteness, ultra-fine particle size, concentrated particle size distribution, high oil absorption and hi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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