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1:1 type silicate mineral doped bismuth yellow hybridization pigment and preparation method thereof

A silicate mineral, bismuth yellow technology, applied in chemical instruments and methods, inorganic pigment processing, fibrous fillers, etc., can solve the problems of color and heat resistance production cost reduction, achieve the solution of agglomeration, expand application fields, The effect of avoiding the formation of free aggregates

Active Publication Date: 2018-03-06
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the improvement of color and heat resistance and the reduction of production cost are relatively limited.

Method used

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  • 1:1 type silicate mineral doped bismuth yellow hybridization pigment and preparation method thereof
  • 1:1 type silicate mineral doped bismuth yellow hybridization pigment and preparation method thereof
  • 1:1 type silicate mineral doped bismuth yellow hybridization pigment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Dissolve 48.5 g of bismuth nitrate in 200 mL of 1 mol L -1 nitric acid solution, then add 100 g of dickite and stir for 1 h. Weigh 12.19 g of sodium metavanadate and dissolve in 50 mL of 1 mol L -1 Nitric acid solution, added to the bismuth nitrate solution dispersed with dickite under stirring, the pH value of the reaction system was slowly adjusted to 7.0 with sodium carbonate, stirred and reacted at room temperature for 8 h, and a yellow precipitate was obtained, which was filtered and washed. Placed directly in a muffle furnace and calcined at 300 °C for 2 h, a yellow powder bismuth yellow / dickite hybrid pigment was obtained, labeled as BiVO 4 / Dickite-300, its L*, a*, b* color values ​​are shown in Table 1.

Embodiment 2

[0027] Dissolve 70.61 g of bismuth sulfate in 200 mL of 2 mol L -1 nitric acid solution, and then add 100 g halloysite and stir for 1.5 h. Weigh 18.39g sodium vanadate and dissolve in 50 mL 2 mol L -1Nitric acid solution, add it to the bismuth sulfate solution dispersed with halloysite under stirring, slowly adjust the pH value of the reaction system to 8.0 with potassium carbonate, stir and react at room temperature for 6 h, and obtain a yellow precipitate, which is filtered and washed Directly placed in a muffle furnace and calcined at 700 °C for 1 h, a bright yellow powder bismuth yellow / halloysite hybrid pigment was obtained, labeled as BiVO 4 / Halloysite-700, its L*, a*, b* color values ​​are shown in Table 1.

Embodiment 3

[0029] Dissolve 31.5 g of bismuth chloride in 100 mL of 0.5 mol L -1 nitric acid solution, and then add 30 g of kaolinite and stir for 2 h. Weigh 11.70 g of ammonium metavanadate and dissolve in 50 mL of 0.5 mol L -1 Add it to the bismuth chloride solution dispersed with kaolinite under stirring, slowly adjust the pH value of the reaction system to 6.5 with sodium bicarbonate, stir and react at room temperature for 8 h, and obtain a yellow precipitate, which is After filtration and washing, the bismuth yellow / kaolinite hybrid pigment was obtained in the form of bright yellow powder, labeled as BiVO. 4 / Kaolinite-500, its L*, a*, b* color values ​​are shown in Table 1.

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Abstract

The invention discloses a 1:1 type silicate mineral doped bismuth yellow hybridization pigment which is prepared by dissolving bismuth salt into a nitrate solution; uniformly dispersing 1:1 type silicate minerals; dissolving a vanadium source into a nitric acid water solution or an alkali water solution; putting into a bismuth solution with silicate minerals; adjusting the pH value of a reaction system to be 7-10; performing stirring reaction so as to obtain yellow precipitate; and filtering, washing, and performing calcining treatment in a muffle furnace, thereby obtaining the 1:1 type silicate mineral doped bismuth yellow hybridization pigment. Due to adoption of the 1:1 type silicate minerals, by virtue of the doping action of components Al2O3 and SiO2 of the minerals to crystal latticeof BiVO3, the color performance of the bismuth yellow pigment is improved, the particle sizes and the particle size distribution of bismuth nanoparticles are effectively controlled, and the generation of free aggregates is avoided; and meanwhile, the production cost of the bismuth yellow pigment is greatly reduced, the high value utilization of the 1:1 type silicate minerals is achieved, and theapplication range of the bismuth yellow pigment is widened.

Description

technical field [0001] The invention relates to the preparation of a bismuth yellow hybrid pigment, in particular to a 1:1 type silicate mineral doped bismuth yellow hybrid pigment and a preparation method thereof, belonging to the technical field of environment-friendly inorganic pigments. Background technique [0002] With the increasingly stringent requirements of environmental protection regulations, the ban on the use of traditional chromium, cadmium, and lead pigments has been fully implemented. Therefore, there is an urgent need to find environmentally friendly alternatives with equivalent performance. In the field of yellow and orange pigments, traditional chrome yellow pigments have high saturation, excellent hiding power, and good durability. Only organic pigments can replace them, but their hiding power is quite different. In terms of color saturation and durability In terms of sex, it can't meet the actual requirements. In recent years, heterogeneous metal oxid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/00C09C3/06
CPCC01P2002/01C01P2002/82C01P2004/04C01P2006/62C01P2006/63C01P2006/64C09C1/0006C09C3/06
Inventor 牟斌王爱勤王晓雯王文波康玉茹汪琴宗莉朱永峰
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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