Preparation method of antimony (III) trioxide cubic crystal

A technology of antimony trioxide and cubic crystals, applied in chemical instruments and methods, antimony oxide/antimony hydroxide/antimony oxyacids, inorganic chemistry, etc., can solve the problem of expensive raw materials, demanding water content, large loss of liquid, etc. problems, to achieve the effect of cheap raw materials, low recycling costs, and reduced production costs
CN104512927AInactive Publication Date: 2015-04-15QINGDAO SHOUSHENG IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QINGDAO SHOUSHENG IND
Publication Date
2015-04-15
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention discloses a preparation method of an antimony (III) trioxide cubic crystal. The preparation method comprises the following steps: step one, dissolving antimony trichloride into glycol; step two, heating the solution to a temperature of 25-90 DEG C, and introducing ammonia gas into the solution until the pH value of the solution is greater than 8; step three, after the reaction, mixing the obtain solid-liquid mixture with distilled water, and stirring to carry out hydrolysis; step four, after the hydrolysis, carrying out centrifugal separation, washing the obtained substances until no chlorine ion exists on the substances, and drying so as to obtain the antimony (III) trioxide cubic crystals. The provided preparation method has the following advantages: (1) the raw materials are cheap, and the technology is simple; (2) the organic solvent can be recycle and reutilized, the recycling cost is low, and the production cost is reduced; (3) the crystal form of the obtained product is single, the crystallization is complete, and thus the crystals can be easily dispersed in plastic and paints and attached on fibers.
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Description

[0001] technical field

[0002] The invention relates to a preparation method of an inorganic antimony-based flame retardant, in particular to a preparation method of antimony trioxide.

[0003] Background technique

[0004] Antimony-based flame retardants are one of the most important inorganic flame retardants. They have little flame-retardant effect when used alone, but when used in combination with halogen-based flame retardants, they can greatly improve the performance of halogen-based flame retardants.

[0005] Antimony trioxide is one of the main varieties of antimony-based flame retardants. Adding antimony trioxide to plastics, coatings and fibers after nanometerization will form inorganic-organic polymer nanocomposites. On the one hand, it will significantly increase the antimony trioxide The flame retardancy synergism and flame retardancy of diantimony and the flame retardancy of the whole material will also significantly improve and enhance the physical and chemi...

Claims

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