Synthetic fluorophlogopite and preparation method thereof

A technology for synthesizing fluorine phlogopite and fluorine phlogopite, which is applied in the direction of chemical instruments and methods, silicon compounds, non-metallic elements, etc., can solve the problems of cost increase, low efficiency, and weak competitiveness, so as to save refractory bricks and reduce Effect of wasting and saving water

Active Publication Date: 2013-03-06
吕宝林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] 1 Single product variety: At present, only one silver-white transparent crystal can be produced
The white and transparent synthetic fluorine phlogopite chip is an ideal material as the base material of the silver-white pearlescent pigment. If the coating is a new variety of pearlescent such as color or interference color, the effect is not ideal.
The product is single and has certain limitations in application
[0019] 2. Product quality: Compared with natural muscovite, the fluorophlogopite crystals produced by the existing technology have certain advantages, such as: pure and transparent, high whiteness, high temperature resistance, etc., but there are also obvious shortcomings, such as: the wafer appears hard and brittle, There are some mica phase glass impurities between the wafer layers, which are relatively hard
Otherwise, the required diameter-to-thickness ratio will not be ac

Method used

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  • Synthetic fluorophlogopite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0058] The ingredients are as follows

[0059] name

purity

Specification

formula

Remark

Potassium fluorosilicate K 2 SiF 6

＞99％

120 mesh

18.5Kg

no lumps

Magnesium Oxide MgO

＞97％

0~1mm

30.1Kg

Fe<0.3%

Alumina Al 2 o 3

＞99％

120 mesh

11.75Kg

Calcined

Potassium Carbonate K 2 CO 3

＞99％

natural particles

3.45Kg

no lumps

Quartz sand SiO 2

＞99.5％

40~70 mesh

36.2Kg

Fe<0.1%

[0060] Weigh about 100Kg of raw materials according to the above formula, put it into a V-shaped mixer and mix for 30 minutes. Use clay refractory bricks to form a small kiln with an inner size of 300×400×400mm, lined with a layer of 0.5mm thick graphite paper. Insert the stainless steel and graphite combined electrode into the small furnace and fix it, fill up the mixture, start to energize, and slowly increase the power from 0 to 30Kw. When the...

example 2

[0064] The ingredients are as follows

[0065] name

purity

Specification

formula

Remark

Potassium fluorosilicate K 2 SiF 6

＞99％

120 mesh

50.4Kg

no lumps

Magnesium Oxide MgO

＞97％

0~1mm

82.2Kg

Fe<0.3%

Alumina Al 2 o 3

＞99％

120 mesh

32.1Kg

Calcined

Potassium Carbonate K 2 CO 3

＞99％

natural particles

9.3Kg

no lumps

Quartz sand SiO 2

＞99.5％

40~70 mesh

98.7Kg

Fe<0.1%

Titanium dioxide TiO 2

＞99％

200 mesh

17.4Kg

Rutile type

Chromium trioxide Cr 2 o 3

＞99％

120 mesh

9.9Kg

no lumps

[0066] Weigh about 300 kg of raw materials according to the formula, mix them with a V-shaped mixer for about 30 minutes, make them fully mixed, and use refractory bricks to form a small kiln with an inner size of 450×500×450mm, and use 0.5mm thick inner wall and bottom Graphite paper...

example 3

[0069] The ingredients are as follows

[0070] name

purity

Specification

formula

Remark

Potassium fluorosilicate K 2 SiF 6

＞99％

120 mesh

49.56Kg

no lumps

Magnesium Oxide MgO

＞97％

0~1mm

80.64Kg

Fe<0.3%

Alumina Al 2 o 3

＞99％

120 mesh

31.5Kg

Calcined

Potassium Carbonate K 2 CO 3

＞99％

natural particles

9.24Kg

no lumps

Quartz sand SiO 2

＞99.5％

40~70 mesh

96.9Kg

Fe<0.1%

Fe2O3 2 o 3

＞99％

200 mesh

32.16Kg

no lumps

[0071] Weigh about 300 kg of raw materials according to the formula, mix them with a V-shaped mixer for about 30 minutes, make them fully mixed, and use refractory bricks to form a small kiln with an inner size of 450×500×450mm, and use 1.0mm thickness for the inner wall and bottom Graphite paper, insert the combined electrode, put it into the furnace from the top and fix it....

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PUM

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Abstract

The invention provides synthetic fluorophlogopite which is colored fluorophlogopite. The synthetic fluorophlogopite is prepared by 100 parts by weight of fluorophlogopite basic raw material and 3-58 parts by weight of color additive, wherein the fluorophlogopite basic raw material is composed of the following ingredients in percentage by weight: 18-21% of K2SiF6, 28-31% of MgO, 8-13% of Al2O3, 2-5% of K2CO3 and 34-38% of SiO2; and the color additive is selected from one or more of the following ingredients in parts by weight: 5-15 parts of TiO2, 3-10 parts of Cr2O3, 5-15 parts of Fe2O3, 5-10 parts of CuO or 4-8 parts of CrO3. The synthetic fluorophlogopite provided by the invention has richful colors ad is capable of meeting the demands of various fields. The invention further provides a preparation method of the fluorophlogopite. By adopting the invention, the production cost can be greatly reduced, and the product quality is improved.

Description

technical field [0001] The invention relates to a synthetic mica, in particular to a colored fluorophlogopite and a preparation method thereof. Background technique [0002] The traditional technology of synthesizing fluorophlogopite by internal heat method has become a relatively mature technology after decades of trial production, exploration and improvement. Because the production process is relatively backward, the product quality is uneven, the quality of raw materials varies from place to place, and the formula has not changed for many years, so the product quality is extremely unstable. The products produced by most manufacturers are generalized, and the production cost is relatively high, and the product is single. , the market is restricted by many factors and is extremely uncompetitive. [0003] The existing internal heat method synthesis of fluorphlogopite has been carried out in China for more than 40 years of research, trial production and production, including...

Claims

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Application Information

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IPC IPC(8): C01B33/42
Inventor 吕宝林
Owner 吕宝林
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