CN104693841A - Preparation process for high temperature resistant bismuth vanadate yellow pigment - Google Patents
Preparation process for high temperature resistant bismuth vanadate yellow pigment Download PDFInfo
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- CN104693841A CN104693841A CN201310657145.4A CN201310657145A CN104693841A CN 104693841 A CN104693841 A CN 104693841A CN 201310657145 A CN201310657145 A CN 201310657145A CN 104693841 A CN104693841 A CN 104693841A
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- yellow pigment
- bismuth vanadate
- yellow
- pigment
- high temperature
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Abstract
The invention discloses a preparation process for a high temperature resistant bismuth vanadate yellow pigment. According to a technical scheme, hydrolysis reaction of tetraethyl orthosilicate (TEOS) is utilized to form an SiO2 film on the surface of BiVO4, a bismuth vanadate yellow pigment is subjected to high temperature calcination at 1000DEG C, the color is still bright, and the high temperature resistance of the BiVO4 yellow pigment is significantly improved. The process provided by the invention is characterized in that: a single BiVO4 yellow pigment is coated with silicon dioxide to improve its strong photochromic weakness and reduce the color difference of the pigment. A high temperature resistant coating layer is formed on the surface, so that the pigment can be applied to ceramic pigments to replace poisonous ceramic pigments containing lead, chromium and cadmium, thus having important practical significance. By optimizing the suitable technological conditions for preparation of the high temperature resistant bismuth vanadate yellow pigment, the production efficiency is improved, and the process has the potential of large-scale production. The performance of the high temperature resistant bismuth vanadate yellow pigment is significantly improved to adapt to more requirements of real life, and the high temperature resistant bismuth vanadate yellow pigment has broad application prospects.
Description
Technical field
The invention discloses a kind of preparation technology of Bismuth Vanadate Yellow Pigment with High-temperature Resistance.
Background technology
Pucherite (BiVO
4) be a kind of Advanced Inorganic yellow ultramarine of Novel non-toxic, bright in colour, strong covering power, light fastness is good, environmentally friendly, has been applied to the fields such as senior ink, automobile finish, senior building coating.But simple bismuth vanadate yellow pigment, is calcined to more than 600 DEG C and darkens, even turn black, can not be used as beramic color due to its non-refractory.Existing yellow beramic color is cadmium yellow (CdS), chrome yellow (PbCrO4, BaCrO4), merimee's yellow (Sb
2o
52PbO), chromium titan yellow [TiO
2 (cr, Sb)] etc., they are all containing toxic heavy-metal elements such as lead, chromium, cadmiums, contaminate environment.Therefore, carry out Surface coating to bismuth vanadate yellow pigment, form resistant to elevated temperatures coating layer on its surface, can be applied to beramic color has important realistic meaning to replace leaded, chromium, cadmium poisonous beramic color.
In order to overcome the problems referred to above, the present invention carries out coated to single BiVO4 yellow ultramarine, utilize the hydrolysis reaction of tetraethoxy, at pucherite Surface coating silicon-dioxide, due to inertia and the weather resistance of silicon-dioxide, the bismuth vanadate yellow pigment having made silicon-dioxide coated, through 1 000 DEG C of high-temperature calcinations, still keeps bright-coloured yellow, this pigment is not only bright in colour than conventional yellow beramic color, and solves the toxicity problem of traditional ceramics pigment.
Summary of the invention
Object of the present invention is exactly the defect existed for prior art, and its technical scheme is a kind of preparation technology of Bismuth Vanadate Yellow Pigment with High-temperature Resistance, it is characterized in that: the hydrolysis reaction utilizing tetraethoxy (TEOS), at BiVO
4surface forms SiO
2film, makes bismuth vanadate yellow pigment through the high-temperature calcination of 1 000 DEG C, still bright-colored, significantly improves the high thermal resistance of BiVO4 yellow ultramarine.
The preparation of yellow ultramarine BiVO4: the Bi (NO preparing 1 mol/L
3)
3the aqueous solution, need add a certain amount of dense HNO when preparing
3to suppress Bi (NO
3)
3hydrolysis; Ammonium meta-vanadate is dissolved in the NaOH aqueous solution of 2mol/L simultaneously, after dilution, obtains the NH of 1 mol/L
4vO
3the aqueous solution.Under magnetic stirring, by NH
4vO
3the aqueous solution is added drop-wise to Bi (NO
3)
3in the aqueous solution, regulate pH=6, after reaction solution being warming up to 80 DEG C, be incubated 1 h more simultaneously, need to maintain pH in this process constant.Then, carry out suction filtration, precipitate with a large amount of distilled water wash, to wash away foreign ion, then use absolute ethanol washing, to prevent product particle agglomeration in drying and sintering process.Finally, put into far infrared drying oven, 90 DEG C of oven dry, obtain loose Powdered pucherite yellow ultramarine.
Resistant to elevated temperatures yellow ultramarine BiVO
4/ SiO
2preparation: get a certain amount of above-mentioned bismuth vanadate yellow pigment, with surfactant D BS solution soaking 10min, after suction filtration, washing, drying, obtain the BiVO of pre-coated
4yellow ultramarine, mixes it with dehydrated alcohol, ammoniacal liquor, distilled water, tetraethoxy, under magnetic stirring, controls differing temps reaction different time and ageing about 20 h.Suction filtration, with absolute ethanol washing precipitation, after oven dry in retort furnace organic composition such as 550 DEG C of roasting 1 h, removing DBS etc., finally formed with BiVO
4for core, with SiO
2for the composite particles of shell.Repeat above-mentioned steps, carry out the 2nd time coated, after oven dry in retort furnace 1 000 DEG C of roasting 1 h, obtain coated 2 SiO
2biVO
4yellow ultramarine.This pigment is bright-colored, loosely organized BiVO
4/ SiO
2yellow beramic color.
Feature of the present invention is: the hydrolysis reaction utilizing tetraethoxy, to single BiVO
4yellow ultramarine has carried out coated silica, improves the photochromic weakness that it is strong, reduces the aberration of pigment.Form resistant to elevated temperatures coating layer on its surface, can be applied to beramic color has important realistic meaning to replace leaded, chromium, cadmium poisonous beramic color.Due to inertia and the weather resistance of silicon-dioxide, the bismuth vanadate yellow pigment having made silicon-dioxide coated is through 1000 DEG C of high-temperature calcinations, still keep bright-coloured yellow, this pigment is not only bright in colour than conventional yellow beramic color, and solves the toxicity problem of traditional ceramics pigment.Present invention optimizes the appropriate process conditions preparing Bismuth Vanadate Yellow Pigment with High-temperature Resistance, enhance productivity, there is the potential of large-scale production.Pucherite is as the environmental protection pigment of excellent property, and the one that can be used as traditional toxic inorganic yellow pigment well substitutes, coated by high temperature material, its performance is significantly improved can adapt to more demands of actual life, has broad application prospects.
Embodiment
A preparation technology for Bismuth Vanadate Yellow Pigment with High-temperature Resistance, is characterized in that: the hydrolysis reaction utilizing tetraethoxy (TEOS), at BiVO
4surface forms SiO
2film, makes bismuth vanadate yellow pigment through the high-temperature calcination of 1 000 DEG C, still bright-colored, significantly improves the high thermal resistance of pucherite (BiVO4) yellow ultramarine.
The preparation of yellow ultramarine BiVO4: the Bi (NO preparing 1 mol/L
3)
3the aqueous solution, need add a certain amount of dense HNO when preparing
3to suppress Bi (NO
3)
3hydrolysis; Ammonium meta-vanadate is dissolved in the NaOH aqueous solution of 2mol/L simultaneously, after dilution, obtains the NH of 1 mol/L
4vO
3the aqueous solution.Under magnetic stirring, by NH
4vO
3the aqueous solution is added drop-wise to Bi (NO
3)
3in the aqueous solution, regulate pH=6, after reaction solution being warming up to 80 DEG C, be incubated 1 h more simultaneously, need to maintain pH in this process constant.Then, carry out suction filtration, precipitate with a large amount of distilled water wash, to wash away foreign ion, then use absolute ethanol washing, to prevent product particle agglomeration in drying and sintering process.Finally, put into far infrared drying oven, 90 DEG C of oven dry, obtain loose Powdered pucherite yellow ultramarine.
Resistant to elevated temperatures yellow ultramarine BiVO
4/ SiO
2preparation get a certain amount of above-mentioned bismuth vanadate yellow pigment, with surfactant D BS solution soaking 10min, after suction filtration, washing, drying, obtain the BiVO of pre-coated
4yellow ultramarine, mixes it with dehydrated alcohol, ammoniacal liquor, distilled water, tetraethoxy, under magnetic stirring, controls differing temps reaction different time and ageing about 20 h.Suction filtration, with absolute ethanol washing precipitation, after oven dry in retort furnace organic composition such as 550 DEG C of roasting 1 h, removing DBS etc., finally formed with BiVO
4for core, take SiO2 as the composite particles of shell.Repeat above-mentioned steps, carry out the 2nd time coated, after oven dry in retort furnace 1 000 DEG C of roasting 1 h, obtain coated 2 SiO
2biVO
4yellow ultramarine.This pigment is bright-colored, loosely organized BiVO
4/ SiO
2yellow beramic color.
Claims (6)
1. a preparation technology for Bismuth Vanadate Yellow Pigment with High-temperature Resistance, is characterized in that: with the hydrolysis reaction of tetraethoxy (TEOS), at BiVO
4surface forms SiO
2film, makes bismuth vanadate yellow pigment through the high-temperature calcination of 1 000 DEG C, still bright-colored, significantly improves the high thermal resistance of BiVO4 yellow ultramarine.
2. the preparation technology of a kind of Bismuth Vanadate Yellow Pigment with High-temperature Resistance according to claim 1, is characterized in that: the preparation of yellow ultramarine BiVO4: the Bi (NO preparing 1 mol/L
3)
3the aqueous solution, need add a certain amount of dense HNO when preparing
3to suppress Bi (NO
3)
3hydrolysis; Ammonium meta-vanadate is dissolved in the NaOH aqueous solution of 2mol/L simultaneously, after dilution, obtains the NH of 1 mol/L
4vO
3the aqueous solution, under magnetic stirring, by NH
4vO
3the aqueous solution is added drop-wise to Bi (NO
3)
3in the aqueous solution, regulate pH=6, be incubated 1 h(after reaction solution being warming up to 80 DEG C again need to maintain pH constant simultaneously).
3. the preparation technology of a kind of Bismuth Vanadate Yellow Pigment with High-temperature Resistance according to claim 2, it is characterized in that: the preparation of yellow ultramarine BiVO4: carry out suction filtration, precipitate with a large amount of distilled water wash, to wash away foreign ion, use absolute ethanol washing again, to prevent product particle agglomeration in drying and sintering process, put into far infrared drying oven, 90 DEG C of oven dry, obtain loose Powdered pucherite yellow ultramarine.
4. the preparation technology of a kind of Bismuth Vanadate Yellow Pigment with High-temperature Resistance according to claim 1, is characterized in that: resistant to elevated temperatures yellow ultramarine BiVO
4/ SiO
2system: get a certain amount of above-mentioned bismuth vanadate yellow pigment, with surfactant D BS solution soaking 10min, after suction filtration, washing, drying, obtain the BiVO of pre-coated
4yellow ultramarine, mixes it with dehydrated alcohol, ammoniacal liquor, distilled water, tetraethoxy, under magnetic stirring, controls differing temps reaction different time and ageing about 20 h.
5. the preparation technology of a kind of Bismuth Vanadate Yellow Pigment with High-temperature Resistance according to claim 4, is characterized in that: resistant to elevated temperatures yellow ultramarine BiVO
4/ SiO
2system: suction filtration, with absolute ethanol washing precipitation, after oven dry in retort furnace organic composition such as 550 DEG C of roasting 1 h, removing DBS etc., finally formed with BiVO
4for core, take SiO2 as the composite particles of shell.
6. the preparation technology of a kind of Bismuth Vanadate Yellow Pigment with High-temperature Resistance according to claim 4, is characterized in that: resistant to elevated temperatures yellow ultramarine BiVO
4/ SiO
2system: repeat above-mentioned steps, carry out the 2nd time coated, after oven dry in retort furnace 1 000 DEG C of roasting 1 h, obtain coated 2 SiO
2biVO
4yellow ultramarine, this pigment is bright-colored, loosely organized BiVO
4/ SiO
2yellow beramic color.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310657145.4A CN104693841A (en) | 2013-12-09 | 2013-12-09 | Preparation process for high temperature resistant bismuth vanadate yellow pigment |
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|---|---|---|---|
| CN201310657145.4A CN104693841A (en) | 2013-12-09 | 2013-12-09 | Preparation process for high temperature resistant bismuth vanadate yellow pigment |
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|---|---|
| CN104693841A true CN104693841A (en) | 2015-06-10 |
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ID=53341410
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|---|---|---|---|
| CN201310657145.4A Pending CN104693841A (en) | 2013-12-09 | 2013-12-09 | Preparation process for high temperature resistant bismuth vanadate yellow pigment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107760063A (en) * | 2017-11-09 | 2018-03-06 | 中国科学院兰州化学物理研究所 | One kind 1:Bismuth Huang hybrid pigment of 1 type silicate mineral doping and preparation method thereof |
| CN109021617A (en) * | 2018-10-08 | 2018-12-18 | 湖南汉瑞新材料科技有限公司 | A kind of environment-friendly preparation method thereof of high coloring power bismuth vanadium pigments |
| CN109705621A (en) * | 2019-01-23 | 2019-05-03 | 景德镇陶瓷大学 | A kind of superfine silicon dioxide coated molybdenum bismuth vanadate yellow pigment and preparation method thereof |
| CN110760203A (en) * | 2019-09-18 | 2020-02-07 | 湖南柿竹园有色金属有限责任公司 | Preparation process of novel bismuth temperature-resistant environment-friendly pigment |
| CN116023801A (en) * | 2022-12-27 | 2023-04-28 | 成都先进金属材料产业技术研究院股份有限公司 | Coating method of bismuth vanadate pigment powder |
| US11999856B2 (en) | 2018-12-06 | 2024-06-04 | Lanzhou Institute Of Chemical Physics, Chinese Academy Of Sciences | Method for mechanochemical preparation of high temperature-resistant bismuth yellow pigment |
-
2013
- 2013-12-09 CN CN201310657145.4A patent/CN104693841A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107760063A (en) * | 2017-11-09 | 2018-03-06 | 中国科学院兰州化学物理研究所 | One kind 1:Bismuth Huang hybrid pigment of 1 type silicate mineral doping and preparation method thereof |
| CN109021617A (en) * | 2018-10-08 | 2018-12-18 | 湖南汉瑞新材料科技有限公司 | A kind of environment-friendly preparation method thereof of high coloring power bismuth vanadium pigments |
| US11999856B2 (en) | 2018-12-06 | 2024-06-04 | Lanzhou Institute Of Chemical Physics, Chinese Academy Of Sciences | Method for mechanochemical preparation of high temperature-resistant bismuth yellow pigment |
| CN109705621A (en) * | 2019-01-23 | 2019-05-03 | 景德镇陶瓷大学 | A kind of superfine silicon dioxide coated molybdenum bismuth vanadate yellow pigment and preparation method thereof |
| CN110760203A (en) * | 2019-09-18 | 2020-02-07 | 湖南柿竹园有色金属有限责任公司 | Preparation process of novel bismuth temperature-resistant environment-friendly pigment |
| CN116023801A (en) * | 2022-12-27 | 2023-04-28 | 成都先进金属材料产业技术研究院股份有限公司 | Coating method of bismuth vanadate pigment powder |
| CN116023801B (en) * | 2022-12-27 | 2024-05-28 | 成都先进金属材料产业技术研究院股份有限公司 | Coating method of bismuth vanadate pigment powder |
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Application publication date: 20150610 |