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Adsorbent for purification of tribromostyrene

A technology of tribromostyrene and an adsorbent, which is applied in the field of preparation of an adsorbent for the purification of tribromobenzoic acid, can solve the problems of complicated operation, small adsorption amount, slow adsorption speed, etc., and achieves high specific surface area and adsorbed amount of impurities Large, fast adsorption effect

Inactive Publication Date: 2016-11-30
王琪宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing production or purification process of tribromostyrene mostly uses activated carbon as the adsorbent for purification, the operation is relatively complicated, the adsorption speed is slow, the adsorption amount is small, and the product purity needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 100Kg of vinylidene chloride, 1000Kg of water, 0.3Kg of 1-alkenyl undecyldimethylsilyl chloride, 0.05Kg of 3-methyl-1,5-di-p-toluene-1,4-pentaazane into the 2000L reactor Alkene, 0.8Kg ammonium persulfate, 1.5Kg polyvinyl alcohol, 0.3Kg divinyl adipate, 0.05Kg 2-hydroxy-4-isopropyl-2,4,6-cycloheptatrien-1-one, 2Kg5 -Methylene-2-norbornene, heat up to 90°C, react for 11h, filter the product, and dry the product to obtain an adsorbent for the purification of tribromostyrene.

Embodiment 2

[0025] Add 100Kg of vinylidene chloride, 1000Kg of water, 0.1Kg of 1-alkenyl undecyldimethylsilyl chloride, 0.01Kg of 3-methyl-1,5-di-p-toluene-1,4-pentaazane into the 2000L reactor Alkene, 0.5Kg ammonium persulfate, 1Kg polyvinyl alcohol, 0.1Kg divinyl adipate, 0.01Kg 2-hydroxy-4-isopropyl-2,4,6-cycloheptatrien-1-one, 1Kg5- Methylene-2-norbornene was heated to 70°C, reacted for 8 hours, the product was filtered, and dried to obtain an adsorbent for the purification of tribromostyrene.

Embodiment 3

[0027] Add 100Kg of vinylidene chloride, 1000Kg of water, 0.5Kg of 1-alkenyl undecyldimethylsilyl chloride, 0.1Kg of 3-methyl-1,5-di-p-toluene-1,4-pentaazane into the 2000L reactor Alkene, 1Kg ammonium persulfate, 2Kg polyvinyl alcohol, 0.5Kg divinyl adipate, 0.1Kg 2-hydroxy-4-isopropyl-2,4,6-cycloheptatrien-1-one, 3Kg5-idene Methyl-2-norbornene was heated to 110°C, reacted for 14h, the product was filtered, and dried to obtain an adsorbent for the purification of tribromostyrene.

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PUM

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Abstract

The invention provides a preparation method of an adsorbent for purification of tribromostyrene. The preparation method comprises the following steps: dispersing a certain amount of vinylidene fluoride into water, adding 10-Undecenyldimethylchlorosilane, 3 methyl 1,5 di-p-toluene 1,4 pentazdiene, ammonium persulfate and polyvinyl alcohol, divinyl adipate, 2-hydroxyl 4 isopropyl 2,4,6 cycloheptatriene 1 one and 5 methylene 2 norbornene in proportion, heating, reacting at a preference temperature, filtering a product after the reaction, and drying so as to obtain the adsorbent for purification of tribromostyrene.

Description

technical field [0001] The invention relates to a preparation method of an adsorbent, in particular to a preparation method of an adsorbent for purifying tribromobenzoic acid. Background technique [0002] Tribromostyrene is a reactive flame retardant with simple handling and high reactivity. It can be used as a flame retardant, and can be self-polymerized into polytribromostyrene, and can also be copolymerized with multiple polymer monomers, and the polymer obtained by the reaction has flame retardant properties. It can be widely used in coatings, construction, automobiles, textiles, plastics and other fields. High-purity tribromostyrene products are beneficial to improve the flame retardant properties of related polymer products. [0003] CN104447192A discloses a method for purifying tribromostyrene. The steps are as follows: dissolving crude tribromostyrene in an organic solvent, adding activated carbon or diatomaceous earth for adsorption treatment, and then separating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F214/08C08F230/08C08F232/08C08F218/14C08F232/06C08F236/14B01J20/26C07C17/389C07C25/28
CPCC08F214/08B01J20/264C07C17/389C08F230/08C08F232/08C08F218/14C08F232/06C08F236/14C07C25/28
Inventor 王琪宇王新
Owner 王琪宇
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