Preparation method of Cr-doped CaTiO3 yellow ceramic pigment, products prepared by using preparation method and applications

A ceramic pigment, yellow technology, applied in the field of ceramic pigments, can solve the problems such as no relevant reports, and achieve the effect of simple process route, stable performance and low cost

Active Publication Date: 2015-06-24
JINGDEZHEN CERAMIC INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no relevant report on the application of ceramic pigments

Method used

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  • Preparation method of Cr-doped CaTiO3 yellow ceramic pigment, products prepared by using preparation method and applications
  • Preparation method of Cr-doped CaTiO3 yellow ceramic pigment, products prepared by using preparation method and applications
  • Preparation method of Cr-doped CaTiO3 yellow ceramic pigment, products prepared by using preparation method and applications

Examples

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Effect test

Embodiment 1

[0020] 1. A kind of CaTiO doped with Cr in this embodiment 3 The preparation method of yellow ceramic pigment, its step is as follows:

[0021] (1) According to the molar ratio of butyl titanate: ethanol = 1: 10, dissolve butyl titanate in ethanol, stir until uniform to obtain liquid A;

[0022] (2) Calcium chloride dihydrate and chromium nitrate are dissolved in distilled water, mixed with ethanol, and stirred evenly to obtain liquid B; wherein, according to the molar ratio of calcium chloride dihydrate: distilled water: ethanol=1: 400: 5, nitric acid The doping amount of chromium is 0.01% according to the molar percentage;

[0023] (3) According to the molar ratio of calcium chloride dihydrate: butyl titanate = 1: 1, drop liquid A into liquid B and stir and mix for 10 minutes, then gradually add NaOH solution dropwise, so that the pH of the mixed solution system = 12 , continue to stir for 15 minutes, put it in a hydrothermal kettle, and keep it at a temperature of 180 ° C...

Embodiment 2

[0028] 1. A kind of CaTiO doped with Cr in this embodiment 3 The preparation method of yellow ceramic pigment, its step is as follows:

[0029] (1) According to the molar ratio of butyl titanate:ethanol=1:5, dissolve butyl titanate in ethanol, stir until uniform to obtain liquid A;

[0030] (2) Calcium chloride dihydrate and chromium nitrate are dissolved in distilled water, mixed with ethanol, and stirred evenly to obtain liquid B; wherein, according to the molar ratio of calcium chloride dihydrate: distilled water: ethanol=1: 200: 10, nitric acid The doping amount of chromium is 0.05% according to the molar percentage;

[0031] (3) According to the molar ratio of calcium chloride dihydrate: butyl titanate = 1: 1, drop liquid A into liquid B and stir and mix for 5 minutes, then gradually add NaOH solution dropwise to make the pH of the mixed solution system = 12 , continue to stir for 15 minutes, put it in a hydrothermal kettle, and keep it at a temperature of 220 ° C for 2...

Embodiment 3

[0034] 1. A kind of CaTiO doped with Cr in this embodiment 3 The preparation method of yellow ceramic pigment, its step is as follows:

[0035] (1) According to the molar ratio of butyl titanate: ethanol = 1:8, dissolve butyl titanate in ethanol, stir until uniform to obtain liquid A;

[0036] (2) Calcium chloride dihydrate and chromium nitrate are dissolved in distilled water, mixed with ethanol, and stirred evenly to obtain liquid B; wherein, according to the molar ratio of calcium chloride dihydrate: distilled water: ethanol=1: 150: 5, nitric acid The doping amount of chromium is 0.07% according to the molar percentage;

[0037] (3) According to the molar ratio of calcium chloride dihydrate: butyl titanate = 1: 1, drop liquid A into liquid B and stir and mix for 5 minutes, then gradually add NaOH solution dropwise to make the pH of the mixed solution system = 12 , continue to stir for 15 minutes, put it in a hydrothermal kettle, and keep it at a temperature of 260 ° C for...

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Abstract

The invention discloses a preparation method of a Cr-doped CaTiO3 yellow ceramic pigment, which comprises the following steps: dissolving butyl titanate into ethanol so as to obtain liquid A; dissolving calcium chloride dihydrate and chromic nitrate into distilled water, and mixing the obtained mixture with ethanol so as to obtain liquid B; stirring and mixing the liquid A and the liquid B, and adding the obtained mixture into an alkaline regulator, so that the pH value of the mixed solution system is 12; further stirring, putting the obtained object into a hydrothermal kettle, and carrying out heat preservation for 1-36h at a temperature of 180-260 DEG C, so that the Cr-doped CaTiO3 yellow ceramic pigment is obtained. In addition, the invention also discloses products prepared by using the preparation method and applications. According to the invention, the properties and use of a CaTiO3 material as a ceramic pigment are developed and expanded, and the CaTiO3 material is prepared in a low cost, which facilitates the promotion of the application and development of CaTiO3 material and ceramic pigment production technologies.

Description

technical field [0001] The invention relates to the technical field of ceramic pigments, in particular to a Cr-doped CaTiO 3 The preparation method of the yellow ceramic pigment and the products and applications thereof. Background technique [0002] With the rapid development of production technology, higher and better requirements are put forward for various properties of materials, so that they can be applied to more fields and environments. People's requirements for materials are not only hope that their performance is superior, but also hope that its price is low. Therefore, in the process of material research and development, the development or improvement of its performance, as well as the means of preparation, are also the material workers' research and face. important question. [0003] CaTiO 3 It belongs to the perovskite structure, and has a special crystal structure, especially the crystal defect structure and properties formed after doping, so that it can be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/86
Inventor 董伟霞包启富顾幸勇
Owner JINGDEZHEN CERAMIC INSTITUTE
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