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Preparation method of laminar pearl bismuth oxychloride

A bismuth oxychloride and pearlescent technology, applied in chemical instruments and methods, inorganic chemistry, bismuth compounds, etc., to achieve good brightness and broad market prospects

Inactive Publication Date: 2013-06-05
XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The morphology of the bismuth oxychloride obtained by the existing method is a planar structure such as a two-dimensional disk, a strip, a sheet, and a plate, and generally only a fixed single surface is an effective surface.

Method used

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  • Preparation method of laminar pearl bismuth oxychloride
  • Preparation method of laminar pearl bismuth oxychloride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Heat deionized water to a temperature of 80°C, add bismuth nitrate at a rate of 40 g / L, add concentrated hydrochloric acid with a mass fraction of 37% at a rate of 80 ml / L, stir and dissolve to obtain a bismuth salt solution;

[0016] Heat deionized water to a temperature of 90°C, add buffer ammonium chloride at 1 g / L, add nonionic surfactant polyethylene glycol with a molecular weight of 200 at 0.25 ml / L, and add anionic surface active agent at 0.1 g / L The active agent sodium dodecylbenzenesulfonate is stirred and dissolved, and the pH is adjusted to be less than 2 with hydrochloric acid and ammonia water to obtain a hydrolyzate;

[0017] Control the temperature of the hydrolyzed solution at 85°C, add the bismuth salt solution to the hydrolyzed solution at a volume ratio of 1:5, continue to insulate and stir for 1 hour, remove the supernatant, wash the precipitate with distilled water, and obtain a single-layer flake three-dimensional cross composition after drying The...

Embodiment 2

[0019] Heat deionized water to a temperature of 80°C, add bismuth nitrate at a rate of 60 g / L, add concentrated hydrochloric acid with a mass fraction of 37% at a rate of 100 ml / L, stir and dissolve to obtain a bismuth salt solution;

[0020] Heat deionized water to a temperature of 90°C, add buffer ammonium chloride at 2 g / L, add nonionic surfactant polyethylene glycol with a molecular weight of 300 at 0.5 ml / L, and add anionic surface active agent at 0.2 g / L The active agent sodium dodecylbenzenesulfonate is stirred and dissolved, and the pH is adjusted to be less than 2 with hydrochloric acid and ammonia water to obtain a hydrolyzate;

[0021] Control the temperature of the hydrolyzed solution at 95°C, add the bismuth salt solution to the hydrolyzed solution at a volume ratio of 1:10, continue to insulate and stir for 1 hour, remove the supernatant, wash the precipitate with distilled water, and obtain a single-layer flake three-dimensional cross composition after drying Th...

Embodiment 3

[0023] Heat deionized water to a temperature of 80°C, add bismuth nitrate at 50 g / L, add concentrated hydrochloric acid with a mass fraction of 37% at 90 ml / L, stir and dissolve to obtain a bismuth salt solution;

[0024] Heat deionized water to a temperature of 90°C, add buffer ammonium chloride at 1.5 g / L, add nonionic surfactant polyethylene glycol with a molecular weight of 400 at 0.4 ml / L, and add anion at 0.15 g / L Surfactant sodium dodecylbenzene sulfonate is stirred and dissolved, and the pH is adjusted to be less than 2 with hydrochloric acid and ammonia water to obtain a hydrolyzate;

[0025] Control the temperature of the hydrolyzate at 90°C, add the bismuth salt solution to the hydrolyzate at a volume ratio of 1:7, continue to insulate and stir for 1 hour, remove the supernatant, wash the precipitate with distilled water, and obtain a single-layer flake three-dimensional cross composition after drying The pearlescent bismuth oxychloride with a honeycomb structure ha...

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Abstract

The invention provides a preparation method of laminar pearl bismuth oxychloride. The preparation method comprises the following steps: controlling nucleation and growth processes of a bismuth oxychloride crystal seed through the synergy of an anionic surfactant, a non-ionic surfactant and a buffering agent, and finally getting the bismuth oxychloride, wherein the microscopic appearance of the bismuth oxychloride is of a honeycomb structure constituted by three-dimensional intersection of single-layer slices or a multi-layer thin plate structure formed by parallel overlapping. The product obtained through the method has good brightness, bright effect and covering force, and owns broad market prospects in the fields of coatings, inorganic pigments, high-quality cosmetics, pearl decorative products, optoelectronic functional materials and the like.

Description

technical field [0001] The invention relates to a method for preparing lamellar pearlescent bismuth oxychloride, which belongs to the field of inorganic material preparation. Background technique [0002] Bismuth oxychloride is a new type of high-grade environmentally friendly pearlescent material. It is non-toxic, low in oil absorption, and has unique surface adhesion and smoothness. It provides the best choice for high-quality cosmetics such as powder cakes, eye shadows, cosmetic pencils, and make-up. . Formulated into different media such as liquid and semi-liquid to create a combined effect of pearlescent, reflective, and covering. It is widely used in nail polish, liquid makeup, lipstick, and eyebrow oil. It is also used as an additive in the plastics industry, and can be used in blow molding, extrusion, and injection molding. Bismuth oxychloride pigments are also used in automotive interior decoration materials, electronic equipment (such as mobile phones, computers)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G29/00
Inventor 王磊周振响徐金宝王贺勇边亮
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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