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Ceramic pigment and application thereof
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A technology of ceramic pigments and ceramic glazes, applied in the direction of fibrous fillers, etc., can solve the problems of high preparation costs, achieve beautiful colors, save costs, and increase the application range
Inactive Publication Date: 2020-11-20
清远市简一陶瓷有限公司
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However, this method also needs to add chemical raw materials such as chromium oxide, iron r
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preparation example Construction
[0024] The invention provides a kind of ceramic pigment, the preparation method of described ceramic pigment comprises the following steps:
[0025] (1) Calcining the red mud in an oxidizing atmosphere. The maximum temperature of the calcination is 1100° C. to 1350° C. to obtain a calcined product. The red mud includes the following chemical components in parts by weight: 3 to 8 parts of Na 2 O, 0-3 parts of MgO, 10-16 parts of Al 2 o 3 , 3 to 8 parts of SiO 2 , 0-2 copies of P 2 o 5 , 1-4 parts of CaO, 6-12 parts of TiO 2 and 48 to 56 parts of Fe 2 o 3 , the mineral composition of the red mud includes the following components by weight: 10 to 25 parts of hematite, 20 to 35 parts of limonite, 8 to 18 parts of goethite, 2 to 5 parts of gibbsite, 1-4 parts of boulite, 3-6 parts of diaspore, 4-6 parts of quartz, 3-6 parts of anatase, 4-7 parts of rutile, 1-3 parts of cancryptite and 0-2 parts of hydrocalumite share;
[0026] (2) Powdering the calcined product to obtain t...
Embodiment 1
[0029] As a kind of ceramic color material of the embodiment of the present invention, the preparation method of described ceramic color material comprises the following steps:
[0030] (1) Calcining the red mud under an oxidizing atmosphere, the maximum temperature of the calcination is 1100°C, and the calcination is programmed to raise the temperature to the maximum temperature, and the programmed temperature is raised to 100°C at a heating rate of 3°C / min and then kept for 35 minutes , heated to 1100°C at a heating rate of 2°C / min, and then kept for 3.5 hours, and cooled to obtain a calcined product. The red mud includes the following chemical components in parts by weight: 7 parts of Na 2 O, 2.5 parts of MgO, 14.5 parts of Al 2 o 3 , 7 parts of SiO 2 , 1.5 copies of P 2 o 5 , 3.5 parts of CaO, 12 parts of TiO 2 and 52 Fe 2 o 3 The mineral weight of described red mud consists of 25 parts of hematite, 35 parts of limonite, 15 parts of goethite, 2 parts of gibbsite, 2 pa...
Embodiment 2
[0033] As a kind of ceramic pigment in the embodiment of the present invention, the only difference between this embodiment and Embodiment 1 is that the maximum temperature of calcination is 1350°C.
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Abstract
The invention provides a ceramic pigment and application thereof. The preparation method of the ceramic pigment comprises the following steps: (1) calcining red mud in an oxidizing atmosphere to obtain a calcined product, wherein the highest temperature of calcination is 1100 DEG C to 1350 DEG C; the red mud is prepared from the following chemical components in parts by weight: 3 to 8 parts of Na2O, 0 to 3 parts of MgO, 10 to 16 parts of Al2O3, 3 to 8 parts of SiO2, 0 to 2 parts of P2O5, 1 to 4 parts of CaO, 6 to 12 parts of TiO2 and 48 to 56 parts of Fe2O3; and (2) pulverizing the calcined product to obtain the ceramic pigment. According to the ceramic pigment and the application thereof, the ceramic pigment takes red mud as a raw material, solid waste utilization is achieved, the cost issaved, meanwhile, the chemical composition and mineral composition of the red mud are limited, the calcination temperature is further limited, the color changing range of the ceramic pigment is wide,and the application range of the ceramic pigment is widened.
Description
technical field [0001] The invention relates to the field of ceramics, in particular to a ceramic pigment and its application. Background technique [0002] Red mud is the waste residue discharged in the alumina production industry. Generally, for every ton of alumina produced, 1.0 to 2.0 tons of red mud are incidentally produced. As the fourth largest producer of alumina in the world, China discharges millions of tons of red mud every year. The chemical composition of red mud is complex, mainly containing CaO, Al 2 o 3 , SiO 2 , Fe 2 o 3 、Na 2 O, TiO 2 Wait. A large amount of red mud cannot be fully and effectively utilized, so it can only rely on large-area storage yards, which takes up a lot of land and causes serious pollution to the environment. Therefore, how to fully and effectively recycle red mud to develop new industrial solid waste materials and reduce the harm to the environment has become an urgent task at this stage. [0003] Ceramic pigment is a deco...
Claims
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Application Information
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