Calcium hexaluminate blue ceramic pigment and preparation method thereof

A ceramic pigment, calcium hexaaluminate technology, applied in fibrous fillers and other directions, can solve the problem of high price of cobalt
CN110358326AActive Publication Date: 2019-10-22INNER MONGOLIA UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INNER MONGOLIA UNIV OF SCI & TECH
Publication Date
2019-10-22

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Abstract

The invention discloses a calcium hexaluminate blue ceramic pigment and a preparation method thereof. The blue ceramic pigment is prepared from cheap aluminum hydroxide (Al(OH)3), titanium hydroxide (Ti(OH)4), nickel oxide (NiO) and calcium carbonate, so the problem of high price of cobalt in cobalt blue is overcome. The blueness b* of the prepared blue ceramic pigment reaches -37.07, which is close to the b* value of cobalt blue.
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Description

technical field

[0001] The invention belongs to the field of ceramic pigments and preparation thereof, in particular to a calcium hexaaluminate blue ceramic pigment and a preparation method thereof. Background technique

[0002] Cobalt blue is bright and pure. It is a very saturated blue pigment. At the same time, it has high temperature resistance, which can reach 1200-1400°C, which is beyond the reach of ordinary pigments. It can be used for high-temperature ceramic pigments, coil coatings, high-temperature Coatings, polyolefins, engineering resins, advanced art pigments, colored stones, cement building materials and other industries; however, the raw materials need to use a large amount of cobalt oxide or cobalt compounds, which are expensive, and the price of industrial-grade cobalt oxide can reach RMB 180,000 / ton, the production cost is higher, so it is limited and cannot be widely used in common fields; therefore, it is urgent to seek a non-cobalt blue colorant with ...

Claims

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