Packaged red ceramic pigment and preparation method thereof

Abstract

The invention discloses a preparation method of a packaged red ceramic pigment. The preparation method of the packaged red ceramic pigment comprises the following steps of: (1), dissolving zirconium oxychloride and cadmium sulphate in a molar ratio of (1.3-1.5):(0.13-0.15) to water to prepare a 27%-45% solution A; (2), dissolving sodium sulphide, sodium metasilicate pentahydrate and sodium hydroxide in a molar ratio of (0.25-0.35):(1.13-1.23):(0.31-0.35) to the water to prepare a 15% solution B; (3), stirring the solution B and titrating by the solution A to carry out neutralization reaction until the pH value of the solution is 8.0-8.5; (4), carrying out filter pressing after the reaction is finished and drying the solution until the moisture content is smaller than 4%; (5), crushing the dried product, so that the fineness of the dried product is 400 meshes-500 meshes; and (6), uniformly mixing 100 weight parts of dried product with 3-4 weight parts of selenium powder and 3-5 weight parts of mineralizer, roasting under the temperature of 1000 DEG C to 1050 DEG C, mixing 45-55 weight parts of roasted product with 45%-55% sulfuric acid, soaking for 20-48 hours, washing the solution until the solution is neutral, grinding the roasted product until the fineness D90 of the roasted product is 22 microns to 28 microns, and drying the grinded product to obtain the packaged red ceramic pigment.

Description

technical field [0001] The invention relates to a preparation method of a ceramic color material, in particular to a packaged scarlet ceramic color material and a preparation method thereof. Background technique [0002] With the development of social economy, a large number of ceramic products are required in the decoration market and people have higher and higher requirements for decorative effects. The method for preparing cadmium sulfoselenide scarlet ceramic pigment in the prior art adopts solid-phase method at present, and raw material directly mixes and carries out solid-phase reaction, and the ceramic pigment that makes has hair color below 800 ℃ in ceramic glaze, but exists The shortcomings of poor color stability and easy oxidation and blackening, and when the use condition exceeds 800 ° C, due to the instability of cadmium sulfur selenide, it will be completely oxidized in ceramic products, no color will develop, and the phenomenon of glaze blistering will appear;...

AI Technical Summary

Problems solved by technology

The method for preparing cadmium sulfoselenide scarlet ceramic pigment in the prior art adopts solid-phase method at present, and raw material directly mixes and carries out solid-phase reaction, and the ceramic pigment that makes has hair color below 800 ℃ in ceramic glaze, but exists The shortcomings of poor color stability and easy oxidation and blackening, and when the use condition exceeds 800 ° C, due to the instability of cadmium sulfur selenide, it will be completely oxidized in ceramic products, no color will develop, and the phenomenon of glaze blistering will appear;