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Method for preparing bismuth oxychloride by solid-phase reaction at room temperature

A room temperature solid-phase reaction, bismuth oxychloride technology, applied in chemical instruments and methods, inorganic chemistry, bismuth compounds, etc., can solve problems such as low temperature, and achieve the effect of simple process, broad market prospects, and easy amplification

Inactive Publication Date: 2011-04-13
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

However, for some solids with relatively weak interactions between lattice components, the temperature required for the solid-state reaction to proceed is relatively low, and the reaction may proceed at room temperature

Method used

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  • Method for preparing bismuth oxychloride by solid-phase reaction at room temperature
  • Method for preparing bismuth oxychloride by solid-phase reaction at room temperature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Weigh bismuth nitrate and sodium chloride by molar ratio Bi:Cl=1:1, mix and grind at room temperature for 0.5 hour;

[0020] The reactants undergo a solid-phase reaction at room temperature, from powder raw materials to porridge paste reactants, and the reaction ends after 30 minutes to obtain powder products;

[0021] Wash the powder with water until the soluble by-product sodium nitrate is removed, and dry to obtain the bismuth oxychloride product, and the reaction yield is 89.7% after weighing.

Embodiment 2

[0023] Weigh bismuth carbonate and sodium chloride at a molar ratio of Bi:Cl=1:2, mix and grind at room temperature for 1 hour;

[0024] The reactants undergo a solid-phase reaction at room temperature, from powder raw materials to porridge paste reactants, and the reaction ends after 30 minutes to obtain powder products;

[0025] The powder is washed with water until the soluble by-product sodium carbonate is removed, and dried to obtain the bismuth oxychloride product, and the reaction yield by weighing is 90.8%.

Embodiment 3

[0027] Weigh bismuth oxalate and sodium chloride at a molar ratio of Bi:Cl=1:1.5, mix and grind at room temperature for 1.5 hours;

[0028] The reactants undergo a solid-phase reaction at room temperature, from powder raw materials to porridge paste reactants, and the reaction ends after 30 minutes to obtain powder products;

[0029] The powder was washed with water until the soluble by-product sodium oxalate was removed, and then dried to obtain the bismuth oxychloride product, and the reaction yield was 85.9% after weighing.

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Abstract

The invention provides a method for preparing bismuth oxychloride by solid-phase reaction at room temperature. The method is characterized in that oxygen-containing bismuth salt and sodium chloride are taken as raw materials, and comprises the following steps: mixing and grinding or carrying out ball-milling on the oxygen-containing bismuth salt and the sodium chloride, removing soluble by-products by rinsing, and drying to obtain the bismuth oxychloride. The method has the advantages of simple process, high efficiency and low cost, and is easy to amplify; especially, in the whole preparation method, acid and alkali as well as organic additives are not used, and heating is not required; and the method has the advantages of energy conservation and environmental friendliness. The bismuth oxychloride prepared by the method has wide market prospects in the fields, such as coatings, inorganic pigment, high-quality cosmetics, pearly jewelries and the like.

Description

technical field [0001] The invention relates to a method for preparing bismuth oxychloride by solid-phase reaction at room temperature, belonging to the field of inorganic material preparation. Background technique [0002] Bismuth oxychloride molecular formula BiOCl, molecular weight 260.45, insoluble in water, soluble in hydrochloric acid, nitric acid. White or light white crystalline powder. Bismuth oxychloride is a new type of high-grade environmentally friendly pearlescent material, non-toxic, low oil absorption, unique surface adhesion characteristics and smoothness, providing the best choice for high-quality cosmetics such as: powder, eye shadow, cosmetic pencil, make-up, etc. . 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 m...

Claims

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Application Information

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IPC IPC(8): C01G29/00
Inventor 徐金宝王磊贾殿赠
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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