Preparation process of novel bismuth temperature-resistant environment-friendly pigment

An environmentally friendly pigment and preparation process technology, applied in inorganic pigment processing, fibrous fillers, chemical instruments and methods, etc., can solve the problems of complex process, high cost, slow reaction rate, etc., achieve scientific and reasonable structure, safe and convenient use, colorful effect

Inactive Publication Date: 2020-02-07
HUNAN SHIZHUYUAN NON FERROUS METAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a preparation process of a new bismuth temperature-resistant environmentally friendly pigment, which can effectively solve the problem that the current production process for preparing bismuth ceramic pigments proposed in the above background technology is not only complicated in process, but also easy to cause environmental pollution, and has slow reaction rate, complicated operation, and high cost. High, the problem that the performance of the pigment is not superior

Method used

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  • Preparation process of novel bismuth temperature-resistant environment-friendly pigment
  • Preparation process of novel bismuth temperature-resistant environment-friendly pigment
  • Preparation process of novel bismuth temperature-resistant environment-friendly pigment

Examples

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Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: as Figure 1-3 As shown, the present invention provides technical scheme, the preparation technology of a kind of bismuth heat-resistant novel environment-friendly pigment, comprises the steps:

[0037] S1. At room temperature, weigh the ammonium metavanadate solid, add distilled water, then add NaOH, and stir vigorously for 15 minutes to obtain solution 1;

[0038] S2, according to equimolar ratio with vanadium element, weigh bismuth nitrate solid, add concentrated nitric acid to dissolve, obtain bismuth nitrate solution 2;

[0039] S3, adding solution 1 to solution 2, and mixing for 1 hour to obtain a bismuth vanadate pigment precursor;

[0040] S4, dissolving the bismuth vanadate pigment precursor obtained in the second step in distilled water, adding silicate and ammonia water, and reacting at room temperature to obtain a coated pigment;

[0041] S5. After the reaction is completed, the obtained product is washed with distilled water and ethanol, dri...

Embodiment 2

[0060] Embodiment 2: as Figure 1-3 As shown, the present invention provides technical scheme, the preparation technology of a kind of bismuth heat-resistant novel environment-friendly pigment, comprises the steps:

[0061] S1. At room temperature, weigh the ammonium metavanadate solid, add distilled water, then add NaOH, and stir vigorously for 15 minutes to obtain solution 1;

[0062] S2, according to equimolar ratio with vanadium element, weigh bismuth nitrate solid, add concentrated nitric acid to dissolve, obtain bismuth nitrate solution 2;

[0063] S3, adding solution 1 to solution 2, and mixing for 1 hour to obtain a bismuth vanadate pigment precursor;

[0064]S4, dissolving the bismuth vanadate pigment precursor obtained in the second step in distilled water, adding silicate and ammonia water, and reacting at room temperature to obtain a coated pigment;

[0065] S5. After the reaction is completed, the obtained product is washed with distilled water and ethanol, drie...

Embodiment 3

[0084] Embodiment 3: as Figure 1-3 As shown, the present invention provides technical scheme, the preparation technology of a kind of bismuth heat-resistant novel environment-friendly pigment, comprises the steps:

[0085] S1. At room temperature, weigh the ammonium metavanadate solid, add distilled water, then add NaOH, and stir vigorously for 15 minutes to obtain solution 1;

[0086] S2, according to equimolar ratio with vanadium element, weigh bismuth nitrate solid, add concentrated nitric acid to dissolve, obtain bismuth nitrate solution 2;

[0087] S3, adding solution 1 to solution 2, and mixing for 1 hour to obtain a bismuth vanadate pigment precursor;

[0088] S4, dissolving the bismuth vanadate pigment precursor obtained in the second step in distilled water, adding silicate and ammonia water, and reacting at room temperature to obtain a coated pigment;

[0089] S5. After the reaction is completed, the obtained product is washed with distilled water and ethanol, dri...

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Abstract

The invention discloses a preparation process of a novel bismuth temperature-resistant environment-friendly pigment. The process comprises the following steps: S1, at room temperature, weighing an ammonium metavanadate solid, adding distilled water, then adding NaOH, and performing vigorous stirring for 15 min to obtain a solution one; S2, weighing a bismuth nitrate solid according to an equal molar ratio with the vanadium element, adding concentrated nitric acid to dissolve to obtain a bismuth nitrate solution two; S3, adding the solution one into the solution two, performing mixing for 1 h to obtain a bismuth vanadate pigment precursor; S4, dissolving the bismuth vanadate pigment precursor obtained in the third step in distilled water, and adding a silicate and ammonia water to obtain awrapped pigment; and S5, after the reaction is completed, washing the obtained product respectively with distilled water and ethanol, and performing drying, calcination and crushing to obtain the bismuth ceramic pigment. According to the process, in the conventional preparation process of bismuth vanadate, the bismuth ceramic pigment is obtained by wrapping the bismuth vanadate pigment. The methodhas the characteristics of fast reaction rate, simple operation, low cost, superior pigment performance, and the like.

Description

technical field [0001] The invention relates to the technical field of pigment production, in particular to a preparation process of a bismuth temperature-resistant novel environmentally friendly pigment. Background technique [0002] Bismuth is a silvery white to pink metal, brittle and easily crushed, and its chemical properties are relatively stable. Bismuth exists in the form of free metals and minerals in nature. Bismuth was previously considered to be the most stable element with the largest relative atomic mass, but in 2003, it was discovered that bismuth has extremely weak radioactivity. Bismuth vanadate is also known as 184 yellow, the first successful research and development by BASF in Germany marks the birth of a new generation of environmentally friendly materials. Bismuth vanadate is a bright yellow inorganic chemical. It does not contain heavy metal elements harmful to the human body. It is an environmentally friendly and low-carbon metal. Oxidizing substance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/00C09C3/06
CPCC01P2006/19C01P2006/22C01P2006/37C09C1/0006C09C1/0009C09C3/063
Inventor 朱文平李仲伦崔静涛张自军
Owner HUNAN SHIZHUYUAN NON FERROUS METAL
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