Process for preparing submicron grade superfine calcium carbonate dispersion particle

An ultra-fine calcium carbonate, submicron-level technology, applied in the direction of calcium carbonate/strontium/barium, etc., can solve the problems of complex process control, low yield per unit volume, complex process control, etc.
CN1724378AActive Publication Date: 2006-01-25建德华明科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
建德华明科技有限公司
Publication Date
2006-01-25

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Abstract

A process for preparing the dispersed submicron-class calcium carbonate particles used for paper, paint, plastics, etc features that the merits of bubbling-carbonizing method and the basic principle of crystallography are used and the particular crystal form regulator and disperser are used to control the performance of crystals and the dispersion of particles.
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Description

technical field

[0001] The invention relates to a preparation method of calcium carbonate particles suitable for paper, in particular to a preparation method of submicron ultrafine calcium carbonate particles. Background technique

[0002] The submicron ultrafine calcium carbonate particles referred to in the present invention refer to calcium carbonate particles with an average particle size ranging from 0.1 to 1.0 μm, and their morphology can be cubic, prismatic, rice-like or a mixture of the above.

[0003] With the development of papermaking technology, precipitated calcium carbonate has become an indispensable and important raw material in the papermaking industry. High-quality precipitated calcium carbonate requires appearance properties such as high whiteness, high hiding power, ink fixation and excellent optical properties. Plastics processing requires calcium carbonate fillers to have lower oil absorption values ​​(larger loadings), high brightness and ease of mixi...

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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