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Chemical preparation method for blue spinel type ceramic coloring material

A spinel-type ceramic colorant technology, applied in the field of preparation of spinel-type ceramic blue colorant, can solve the problems of incomplete oxide reaction, lengthy process, high calcination temperature, etc.

Inactive Publication Date: 2008-12-17
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This traditional process has the following disadvantages: (1) high calcination temperature is required for production, which greatly increases the production cost; (2) the reaction of each oxide is not complete at high temperature, and it is not easy for colored metal ions to be doped to high temperature to develop color In stable ceramic minerals; (3) Chlorides, fluorides, nitrates, borates and carbonates containing alkali metals and alkaline earth metals are used in production, and these salts are produced after decomposition at high temperature The gas will seriously affect the environment
Other synthetic routes, such as sol-gel method, co-precipitation method and impregnation process, have disadvantages such as high cost, low product conversion rate or lengthy process to varying degrees.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] (1) The tributoxy aluminum of 492.66 grams and 266.68 grams of aluminum chloride are made into the aqueous solution of 100 milliliters of mixtures with distilled water, it is heated to 65 ℃ and after stirring 30 minutes, add 38 grams of nitric acid in the above-mentioned solution, And continue stirring for 3 hours for later use;

[0011] (2) dissolving 121.52 gram of ferrous sulfate and 30.80 gram of titanium trichloride with 50 milliliters of distilled water is made into the aqueous solution of mixture, needs constantly feed nitrogen and adjust pH with ammoniacal liquor to be 8.5 in the preparation process;

[0012] (3) Pour the aqueous solution of the mixture of step 1 into the aqueous solution of step 2, and carry out the doping reaction. During the reaction, feed nitrogen all the time and adjust the pH to 8.5 with ammonia water. After the reaction, the obtained precipitate is centrifuged, and then transferred to The dialysis membrane is separated, dried at 90°C, and...

Embodiment 2

[0014] (1) 246.33 grams of aluminum tributoxide and 133.34 grams of aluminum chloride are made into an aqueous solution of 50 milliliters of mixture with distilled water, which is heated to 65 ° C and stirred for 30 minutes and then added 19 grams of nitric acid to the above solution, And continue stirring for 3 hours for later use;

[0015] (2) dissolving 121.52 gram of ferrous sulfate and 30.80 gram of titanium trichloride with 25 milliliters of distilled water is made into the aqueous solution of mixture, needs to constantly pass into nitrogen and adjust pH with ammoniacal liquor to be 8.5 in the preparation process;

[0016] (3) Pour the aqueous solution of the mixture of step 1 into the aqueous solution of step 2, and carry out the doping reaction. During the reaction, feed nitrogen all the time and adjust the pH to 8.5 with ammonia water. After the reaction, the obtained precipitate is centrifuged, and then transferred to The dialysis membrane is separated, dried at 85°C...

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PUM

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Abstract

This invention discloses a chemical preparation method for blue spinel ceramic materials, which takes aluminum butoxide as the doped metal start material, ammonia as for adjusting pH value including: preparing equal mol volumes of aluminum butoxide and AlCl mixed solution, then preparing doped inorganic salt to a solution and it's necessary to penetrate nitrogen for protection in the preparation process, when the two solutions are ready, the mixture solution is poured into the inorganic salt solution to be reacted, and the deposit is centrifuged then separated in a dialyzing film to be dried and calcined under 1200deg.C to produce a spinel ceramic blue material.

Description

technical field [0001] The invention relates to a chemical preparation method of a blue spinel ceramic pigment, in particular to a preparation method of a spinel ceramic blue pigment doped with iron-titanium alumina by using a chemical preparation method. Background technique [0002] The current production of ceramic pigments is mainly used in large quantities to meet the decorative needs of current ceramic blanks and glazes. Due to the high mechanical wear resistance, high compressive strength and chemical corrosion resistance in the use of ceramics, the corresponding requirements in the development of ceramic pigments are used in ceramic blanks and glazes. It has the properties of color stability and high temperature resistance. At present, ceramic pigments are mainly high-temperature oxide ceramic pigments, spinel ceramic pigments, and perovskite ceramic pigments. Silicate oxides, such as alumina, quartz, zirconia, etc., are ball milled and mixed uniformly in a certain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/622C04B35/64C04B35/10
Inventor 王海张春霞田广
Owner GUILIN UNIVERSITY OF TECHNOLOGY