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A method for preparing cobalt blue/phyllosilicate clay mineral hybrid pigments by solid phase method

A layered silicate and clay mineral technology, applied in chemical instruments and methods, fibrous fillers, inorganic pigment treatment, etc., can solve the problem of low yield, high cost, and influence on the crystal form of cobalt blue hybrid pigments And the problem of color matching, to achieve the effect of strong operability of the preparation process, low cost and simple production process

Active Publication Date: 2021-09-28
西北永新涂料有限公司 +1
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  • Description
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  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to provide a kind of method for preparing cobalt blue / phyllosilicate clay mineral hybrid pigment by solid phase method, to solve the cobalt blue pigment that chemical precipitation method influences the crystalline form and hue of hybrid pigment and the prepared cobalt Problems of low yield and high cost of blue hybrid pigments.

Method used

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  • A method for preparing cobalt blue/phyllosilicate clay mineral hybrid pigments by solid phase method
  • A method for preparing cobalt blue/phyllosilicate clay mineral hybrid pigments by solid phase method
  • A method for preparing cobalt blue/phyllosilicate clay mineral hybrid pigments by solid phase method

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Experimental program
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Effect test

Embodiment 1

[0027] Preparation of cobalt blue hybrid pigment: Accurately weigh 14.58 g of kaolinite, 72.42 g of dicobalt oxide, 102 g of aluminum oxide and 7.242 g of zinc oxide and mix them evenly. After crystallization for 2 h, the cobalt blue hybrid pigment was obtained, the sample number was S0, and the yield was 96.44%.

Embodiment 2

[0029] Preparation of cobalt blue hybrid pigment: Accurately weigh 46.5 g of halloysite, 46.5 g of cobalt hydroxide, 204 g of aluminum oxide and 20 g of magnesium oxide and mix evenly. The resulting mixture is placed in a calciner and crystallized at a high temperature of 1300 °C 2 h, the cobalt blue hybrid pigment was obtained, the sample number was S1, and the yield was 97.16%.

Embodiment 3

[0031] Preparation of cobalt blue hybrid pigment: Accurately weigh 16.2 g of kaolinite, 16.32 g of dicobalt oxide, 102 g of aluminum oxide and 44.8 g of calcium oxide and mix them evenly. After crystallization for 2 h, the cobalt blue hybrid pigment was obtained, the sample number was S2, and the yield was 98.97%.

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Abstract

The invention discloses a method for preparing a cobalt blue / layered silicate clay mineral hybrid pigment by a solid phase method, and belongs to the field of nano spinel hybrid pigments. In this method, clay minerals, cobalt oxide, aluminum oxide and alkaline earth metal oxides are mixed according to a certain ratio, and the mixture is placed in a calciner at 1000-1300°C for 1-2 hours to obtain cobalt blue layered silicic acid prepared by a solid phase method. Salt clay mineral hybrid pigment. The invention has the advantages of low cost, simple preparation process and high yield, and the introduction of alkaline earth metals and clay minerals can realize the hue control of the cobalt blue nanoparticles, and realize the hue transition of the cobalt blue pigment from green to red.

Description

technical field [0001] The invention belongs to the field of nano spinel hybrid pigments, in particular to a method for preparing cobalt blue / layered silicate clay mineral hybrid pigments by a solid phase method. Background technique [0002] Cobalt Blue (CoAl 2 o 4 ) as an important spinel inorganic pigment, due to its good heat resistance, acid resistance, alkali resistance and chemical stability, it is mainly used in coatings, ceramics, high temperature resistant coatings and other industries. But the traditional preparation method of cobalt blue pigment is solid-phase method, and the particle size distribution of cobalt blue pigment is inhomogeneous, and calcining temperature is high, and the cobalt blue nano-particle agglomeration of formation is serious, and the raw material Co of preparation cobalt blue pigment is expensive, has certain Environmental toxicity. Therefore, it is particularly important to develop an effective, low-cost, high-chroma cobalt blue pigment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/40C09C3/04C09C3/06
CPCC01P2006/63C01P2006/65C09C1/40C09C3/006C09C3/043C09C3/06
Inventor 张安杰王爱勤牟斌李华明陶雯曾慧崇王乃迪齐彦兴文立新
Owner 西北永新涂料有限公司
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