Method for preparing mica titanium material

A technology of mica titanium and sericite powder, which is applied in the field of preparation of mica titanium pearlescent materials by chemical deposition, which can solve the problems of less mineral deposits, high cost, and expensive raw materials

Inactive Publication Date: 2008-04-30
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These methods usually use materials with pearlescent properties such as muscovite and phlogopite as th

Method used

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  • Method for preparing mica titanium material
  • Method for preparing mica titanium material

Examples

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example 1

[0023] Mix the sericite powder and the mixed acid at a mass ratio of 1:10, soak in a water bath at 70°C for 4 hours, then wash with water until the conductivity of the filtrate is less than 10ms / s, and dry it for use, wherein the mixed acid is made of 2.5wt% Phosphoric acid and 2.5wt% sulfuric acid are mixed according to the volume ratio of 1:1.

[0024] Evenly disperse the pretreated 100g sericite powder in 800g distilled water, place it in a water bath at 85°C, add dilute hydrochloric acid to keep the pH value of the solution at 2.0, slowly add 16wt% TiCl 4 solution 8.4ml, so that the reaction generated TiO 2 : The mass ratio of sericite is 1: 100, and NaOH solution is added dropwise at the same time, so that the pH value of the system is maintained at 2.0, reacted for 2h, and then washed with distilled water until the conductivity of the filtrate is less than 10ms / s. Dry at 100°C for 18 hours, put it into a muffle furnace and slowly raise the temperature to 900°C, and roas...

example 2

[0026] Mix the sericite powder and the mixed acid at a mass ratio of 1:10, soak in a water bath at 70°C for 4 hours, then wash with water until the conductivity of the filtrate is less than 10ms / s, and dry it for use, wherein the mixed acid is made of 2.5wt% Phosphoric acid and 2.5wt% sulfuric acid are mixed according to the volume ratio of 1:1.

[0027] Evenly disperse the pretreated 100g sericite powder in 800g distilled water, place it in a water bath at 85°C, add dilute hydrochloric acid to keep the pH value of the solution at 2.0, slowly add 16wt% TiCl 4 solution 42ml, so that the TiO generated by the reaction 2 : The mass ratio of sericite is 5: 100, and NaOH solution is added dropwise to maintain the pH value of the system at 2.0, react for 2h, and then wash with distilled water until the conductivity of the filtrate is less than 10ms / s. Dry at 100°C for 18 hours, put it in a muffle furnace and slowly raise the temperature to 900°C, and roast for 1 hour to get the prod...

example 3

[0029] Mix sericite powder and mixed acid at a mass ratio of 1:10, soak in a water bath at 70°C for 6 hours, then wash with water until the conductivity of the filtrate is less than 10ms / s, and dry it for use, wherein the mixed acid is made of 2.5wt% Phosphoric acid and 2.5wt% sulfuric acid are mixed according to the volume ratio of 1:1.

[0030] Evenly disperse the pretreated 100g sericite powder in 800g distilled water, place it in a water bath at 85°C, add dilute hydrochloric acid to keep the pH value of the solution at 2.0, slowly add 16wt% TiCl 4 solution 84ml, so that the TiO generated by the reaction 2 : The mass ratio of sericite is 1: 10, and NaOH solution is added dropwise at the same time, so that the pH value of the system is maintained at 2.0, reacted for 2h, and then washed with distilled water until the conductivity of the filtrate is less than 10ms / s. Dry at 100°C for 18 hours, put it in a muffle furnace and slowly raise the temperature to 900°C, and roast for...

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Abstract

The invention relates to a method for preparing mica titanium material. The invention comprises the concrete steps that sericite power is evenly scattered in distilled water, and is put in 80-90 DEG C water bath, TiCl4 solution is dropped slowly, the pH value of an adjusting system always maintains 1.8-2.2, the reaction is operated for 2 to 4 hours; the distilled water is used to wash to lead the electric conductivity of filtrate to be lower than 10 ms/s, after drying, the roasting is operated for 0.5-2 hours at 800-1000 DEG C, the product is obtained. The method for preparing the mica titanium material also comprises steps that La (NO3)3 solution is dropped before the TiCl4 solution is added, and the dropping weight is 1 to 5 percent of the weight of the sericite power. The mica titanium nanometer compound material prepared through using the method has the advantages that the cladding is even, the relative scattering strength is high, and the pearly luster effect is obvious; simultaneously, the method has the advantages that the reaction condition is mild, the reaction is easy to be controlled, the cost is low, the process and the process are simple and convenient.

Description

technical field [0001] The present invention relates to a kind of method for preparing mica titanium material, especially refers to using titanium tetrachloride as raw material, wet method sericite as base material, doped with a small amount of La 3+ When, the method of preparing mica titanium pearlescent material by chemical deposition method. Background technique [0002] With its excellent chemical stability, strong hiding power, high refractive index, colorful and non-toxic characteristics, mica-titanium nanocomposites have been widely used in coatings, paints, inks, cosmetics, plastics, rubber and printing industries. . However, the production capacity of mica titanium in my country is not high. With the domestic consumption of hot spots such as high-grade coatings increasing, the demand for mica titanium will also increase rapidly. [0003] There are many methods for synthesizing mica-titanium nanocomposites, such as adding alkali, hydrothermal synthesis, chemical d...

Claims

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Application Information

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IPC IPC(8): C23C18/16C23C18/18
Inventor 殷恒波任敏王爱丽葛晨卢燕姜廷顺于龙宝张瑞超李海霞利于民陆惠红柳春燕漆琳张东芝
Owner JIANGSU UNIV
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