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New process for producing colloid antimonic oxide

A technology of antimony pentoxide and antimony trioxide, which is applied in inorganic chemistry, antimony compounds, chemical instruments and methods, etc., can solve the problem of difficulty in providing large-scale antimonate industrial products, difficult to realize industrialization, and difficult to industrialize transformation, etc. problems, to achieve the effect of easy promotion, stable process and low cost

Inactive Publication Date: 2007-08-29
HENAN UNIV OF SCI & TECH
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  • Abstract
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Problems solved by technology

Among these four processes, except for hydrogen peroxide oxidation, which uses antimony trioxide as raw material, the other three production processes use antimonate as raw material. At present, it is difficult for my country to provide large quantities of antimonate industrial products, and these The production cycle of the process is long and the concentration of the crude product is low, so it is difficult to transform to industrialization, and it is difficult to realize industrialization

Method used

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  • New process for producing colloid antimonic oxide

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Embodiment 1

[0014] Embodiment 1, choose 10kg of antimony trioxide, the amount of water is 3o~45L, ammonium dihydrogen phosphate 1.5~2.5kg, before oxidation reaction, add and mix vigorously and stir evenly, then add 30% hydrogen peroxide to be 9~15L, with over Hydrogen oxide refluxes to oxidize antimony trioxide, the reaction time is 100-140 minutes, and the reaction temperature is 80-100°C, and colloidal antimony pentoxide with uniform dispersion and long stable period can be prepared. If spray drying method can be used Colloidal antimony pentoxide is further made into colloidal antimony pentoxide dry powder. The white translucent colloid can still be uniformly dispersed and dispersed in series after redissolving the dry powder into water, that is, the colloid and dry powder of the present invention are reversible and stable.

Embodiment 2

[0015] Embodiment 2, choose antimony trioxide 35~45kg, water yield is 0.6~1.2L, borax is 0.9kg, before oxidation reaction, add and mix vigorously and stir evenly, then add 30% hydrogen peroxide to be 8~14L, with peroxidation Hydrogen reflux oxidizes antimony trioxide, the reaction time is 80-100 minutes, the reaction temperature is 80-100 degrees, and the colloidal antimony pentoxide with uniform dispersion and long stable period can be prepared. Antimony pentoxide is further made into colloidal antimony pentoxide dry powder, and the dry powder-colloid is reversible and stable.

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Abstract

The invention relates to a method to produce colloid antimony pentoxide that adds water, stabilizer ammonium dihydrogen phosphate or borax, and 30% hydrogen peroxide into antimony oxide, heating to 80-95 degree centigrade, taking reaction for 90-140 minutes to gain colloid antimony pentoxide. Using spraying drying method, the colloid antimony pentoxide could be made into colloid antimony pentoxide powder. It has the advantages of reversible, stable, simple device, reliable quality, etc.

Description

technical field [0001] The invention relates to the manufacture of a flame-retardant material, which belongs to a new process of non-ferrous metallurgy, and more specifically relates to a kind of high-efficiency flame-retardant material that can be used in various industries such as chemical industry, chemical fiber, paint, plastic, rubber, paint, and building materials. A new production process of colloidal antimony pentoxide as an additive. Background technique [0002] At present, there are roughly four new production processes for the production of colloidal antimony pentoxide in the world: ion exchange, electrodialysis, mixing and stirring, and reflux oxidation. Among these four processes, except for hydrogen peroxide oxidation, which uses antimony trioxide as raw material, the other three production processes use antimonate as raw material. At present, it is difficult for my country to provide large quantities of antimonate industrial products, and these The production...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G30/00
Inventor 黄兴远王海棠张长水冯汇川兰为君符新正李水良董嘉更张学强姚卫鑫
Owner HENAN UNIV OF SCI & TECH
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