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Preparation method of tris(trimethylsilyl)borate adsorbent

A technology of trimethylsilyl, borate ester, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of large loss of materials, many impurities in the product, and it is difficult to obtain high-quality products, and achieves improved adsorption. performance effect

Inactive Publication Date: 2016-11-09
王金明
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the practical application of existing known technologies, since the boron atom at the center of tris(trimethylsilyl) borate is electron-deficient, it is easy to form a boron coordination compound, and there are many impurities in the product, so it is difficult to obtain high-quality products, and the product quality is unstable, unable to meet the requirements of electronic grade indicators, which limits the application of the product in the electronic field. Although the use of rectification and purification can improve the purity, it has the disadvantages of large material loss and high energy consumption, which needs further optimization.

Method used

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  • Preparation method of tris(trimethylsilyl)borate adsorbent

Examples

Experimental program
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Effect test

Embodiment 1

[0016] In a 1000L reaction kettle, add 100Kg boron special-effect coordination adsorption resin, add 300Kg dichloroethane; at a temperature of 30°C, add 4-formyl chloride phenylboronic acid to react, the dosage is 5Kg, add 12Kg ferric chloride, add 0.1 Kg p-Acetaminobenzenesulfonyl chloride, keep warm for 8h, filter, dry and the number is SX-1.

Embodiment 2

[0018] In a 1000L reaction kettle, add 100Kg boron special-effect coordination adsorption resin, add 200Kg dichloroethane; at a temperature of 20°C, add 4-formyl chloride phenylboronic acid to react, the dosage is 1Kg, add 5Kg ferric chloride, add 0.05 Kg p-Acetaminobenzenesulfonyl chloride, keep warm for 5h, filter and dry, the product number is SX-2.

Embodiment 3

[0020] In a 1000L reaction kettle, add 100Kg boron special-effect coordination adsorption resin, add 500Kg dichloroethane; at a temperature of 50°C, add 4-formyl chloride phenylboronic acid to react, the dosage is 10Kg, add 20Kg ferric chloride, add 0.5 Kg p-Acetaminophensulfonyl chloride, keep warm for 15h, filter and dry, the product number is SX-3.

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Abstract

The invention relates to a preparation method of a tris(trimethylsilyl)borate adsorbent. The preparation method comprises the following steps: acylating boron specific coordination adsorption resin; and adding (4-chlorocarbonylphenyl)boronic anhydride. P-acetamidobenzene sulfonyl chloride is an acylating agent. By the preparation method, the tris(trimethylsilyl)borate adsorbent can be prepared.

Description

technical field [0001] The invention relates to a method for preparing an adsorbent, in particular to a method for preparing a tris(trimethylsilyl) borate adsorbent. Background technique [0002] Tris(trimethylsilane) borate is a boron-containing organosilicon compound with a simple structure. It can be used in lithium-ion batteries to improve the high-temperature storage performance and service performance of the battery, improve the low-temperature capacity performance of the battery, and prolong the service life of the battery. And other effects, showing a good application prospect. In 1948, the General Electric Company of the United States first reported the synthesis method of tris(trimethylsilane) borate, and then there were a small number of synthesis and application reports. In early reports, the main uses of tris(trimethylsilane) borate are: catalyst for polymerization reaction, neutron absorber, surface protective agent in arc welding, intermediate raw material fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30
CPCB01J20/265B01J20/22
Inventor 王琪宇
Owner 王金明
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