Bi3YO6 inorganic pigment doped with iron/terbium element and preparation method and application thereof

A technology for inorganic pigments and iron elements, which is applied in the field of pigments to achieve the effects of simple preparation process, easy mass production and chemical stability

Active Publication Date: 2020-04-21
XIAMEN INST OF RARE EARTH MATERIALS
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  • Abstract
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Problems solved by technology

[0004] So far, there has been no report on the application of bismuth and yttrium mixed oxides in near-infrared reflective pigments

Method used

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  • Bi3YO6 inorganic pigment doped with iron/terbium element and preparation method and application thereof
  • Bi3YO6 inorganic pigment doped with iron/terbium element and preparation method and application thereof
  • Bi3YO6 inorganic pigment doped with iron/terbium element and preparation method and application thereof

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preparation example Construction

[0036] Bi above 3 YO 6 The preparation method of inorganic pigment is characterized in that, comprises the steps:

[0037] (1) Weigh the raw materials according to the amount, and the raw materials include Bi 2 o 3 , Y 2 o 3 And oxides that need doping elements, the oxides of doping elements are Fe 2 o 3 or Tb 4 o 7 ;

[0038] (2) The raw material that weighs is mixed acetone and grinds in agate mortar, after acetone volatilizes completely, obtains mixed powder;

[0039] (3) drying the mixed powder, and calcining the dried mixed powder;

[0040] (4) After the reaction in step (3) is completed, naturally cool to room temperature to obtain a pigment product.

[0041]Further, the calcination process is as follows: first react at 800°C for 90 minutes, and then heat to 900°C for 120 minutes.

[0042] Bi mentioned above 3 YO 6 Application of inorganic pigments, the inorganic pigments are used for external painting of buildings or oil and gas storage tanks.

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Abstract

The invention relates to the technical field of pigments. The invention discloses a Bi3YO6 inorganic pigment doped with an iron/terbium element. The general formula is Bi3-xFexYO6 or Bi3Y1-xTbxO6+delta. The invention provides a series of Bi3YO6 inorganic, non-toxic and high-near-infrared reflection pigments doped with Fe2O3 or Tb4O7. The Bi3YO6 inorganic, non-toxic and high-near-infrared reflection pigments doped with Fe2O3 or Tb4O7 have the advantages that even in dark orange and dark red pigments with a low L*value, the near-infrared reflectivity of the pigment is still higher than that of acommon pigment, and practical application shows that the near-infrared reflectivity and the color forming ability of the novel pigment have a very high application prospect.

Description

technical field [0001] The present invention relates to the technical field of pigments, especially a kind of Bi doped with iron / terbium element 3 YO 6 Inorganic pigments and their preparation methods and applications. Background technique [0002] The continuous consumption of global petroleum energy and rising energy costs have promoted the development of new technologies to improve global energy utilization, one of which is the use of special near-infrared reflective pigments. The solar spectrum is a continuous spectrum composed of different wavelengths, divided into visible light and invisible light. There are two types of invisible light: infrared rays outside the red zone and ultraviolet rays outside the purple zone. In the total solar radiation, the visible light region accounts for about 50% of the total radiant energy, the infrared region accounts for about 43%, and the ultraviolet region accounts for about 7% of the total radiant energy. Therefore, infrared ray...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G29/00C09C1/00C09C1/22
CPCC01G29/00C01G29/006C09C1/22C09C1/00C01P2002/72
Inventor 孙晓琦谢文琦黄彬肖瑜
Owner XIAMEN INST OF RARE EARTH MATERIALS
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