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Process for preparing high temperature ceramic pigment

A technology of high-temperature ceramics and pigments, which is applied in the field of preparation of ceramic high-temperature pigments, can solve the problems of unstable production, long process flow, and low yield, and achieve the effects of low cost, simple production process, and high yield

Inactive Publication Date: 2006-12-27
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, zirconium silicate-wrapped cadmium sulfur selenide series high-temperature pigments are high-grade pigments for ceramics, and the demand is large. However, the current production process of such pigments is long, unstable, low yield, and high cost. Therefore, research and development It is of great significance to develop the production technology of zirconium silicate-wrapped cadmium sulfoselenide series high-temperature pigments with simple production process and low cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: take by weighing 160Kg ZrOCL 2 ·8H 2 O, 42Kg 3CdSO 4 ·8H 2 O, put in a 2000L reactor, add 1000L of water, stir to dissolve all the solids, and obtain A liquid; weigh 80KgNa 2 S·9H 2 O and 20KgNaOH, selenium powder 4kg, are placed in 1000L reactor, add water 500L, stir and be heated to 100 ℃ to make solid dissolve completely, obtain B liquid; Add 500L water in 5000L reactor as bottom liquid, under stirring, The two solutions of A and B were added to the bottom solution to react, and the pH value of the reaction system was controlled at 5-9 with sulfuric acid with a concentration of 2mol / L to obtain suspension G; weigh 120KgNa 2 SiO 3 ·5H 2 O, add in 1000L water, after dissolving, add it into the suspension G under stirring, at the same time control the pH value of the reaction system in the range of 6-10 with sulfuric acid with a concentration of 3mol / L, and then stir the reaction after adding 4 hours, filter, and wash the precipitate with water unti...

Embodiment 2

[0022] Embodiment 2: take by weighing 160Kg ZrOCL 2 ·8H 2 O, 24Kg 3CdSO 4 ·8H 2 O, put in a 2000L reactor, add 1000L of water, stir to dissolve all the solids, and obtain A liquid; weigh 70KgNa 2 S·9H 2 O and 20KgNaOH, selenium powder 2Kg, are placed in 1000L reactor, add water 500L, stir and be heated to 95 ℃ to make solid dissolve completely, obtain B liquid; The two solutions of A and B were added to the bottom solution to react, and the pH value of the reaction system was controlled at 5-9 with sulfuric acid with a concentration of 1mol / L to obtain suspension G; weigh 120KgNa 2 SiO 3 ·5H 2 O, add in 1000L water, after dissolving, add it into the suspension G under stirring, at the same time control the pH value of the reaction system in the range of 6-10 with sulfuric acid with a concentration of 2mol / L, and then stir the reaction after adding 4 hours, filter, and wash the precipitate with water until the washing liquid does not contain sulfate and chloride ions. Af...

Embodiment 3

[0023] Embodiment 3: take by weighing 150Kg ZrOCL 2 ·8H 2 O, 30Kg 3CdSO 4 ·8H 2 O, put in a 2000L reactor, add 1000L of water, stir to dissolve all the solids, and obtain A liquid; weigh 70KgNa 2 S·9H 2 O and 15KgNaOH, selenium powder 1Kg, be placed in 1000L reactor, add water 500L, stir and be heated to 85 ℃ and solid is all dissolved, obtain B liquid; Add 500L concentration and be 0.5mol / L acetic acid and Ammonium acetate aqueous solution is used as the bottom liquid, and under stirring, the two solutions A and B are added to the bottom liquid for reaction, and the pH value of the reaction system is controlled at 5-9 with sulfuric acid with a concentration of 2mol / L to obtain a suspension G; 110KgNa 2 SiO 3 ·5H 2 O, add 1000L water, after dissolving, add it to the suspension G under stirring, and control the pH value of the reaction system within the range of 6-10 with sulfuric acid with a concentration of 2.5mol / L, and then stir the reaction after adding After 4 hou...

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Abstract

The invention discloses a high-temperature ceramic color preparing method of zirconium silicate encapsulated cadmium sulfoselenide series, which comprises the following steps: (1) the method doesn't need high-temperature and high-pressure equipment, which possesses mild reacting condition; (2) there is no gel in the preparing course to influence filter; (3) the method can generate yellow to orange yellow, orange red, red color; (4) the method displays high recovering rate and low cost.

Description

technical field [0001] The invention relates to a preparation method of ceramic high temperature pigment. Background technique [0002] At present, zirconium silicate-wrapped cadmium sulfur selenide series high-temperature pigments are high-grade pigments for ceramics, and the demand is large. However, the current production process of such pigments is long, the production is unstable, the yield is low, and the cost is high. Therefore, research and development It is of great significance to develop the production technology of zirconium silicate-wrapped cadmium sulfoselenide series high-temperature pigments with simple production process and low cost. Contents of the invention [0003] The purpose of the invention is to provide a preparation method of zirconium silicate-wrapped cadmium sulfoselenide series high-temperature pigments. [0004] The object of the present invention is achieved in the following manner: a kind of preparation method of high-temperature ceramic pi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/80
Inventor 邓建成张阳
Owner XIANGTAN UNIV
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