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Process for synthesizing silicane coupling agent KII 560 at low temp.

A silane coupling agent, KH-560 technology, applied in chemical instruments and methods, compounds of group 4/14 elements of the periodic table, organic chemistry, etc., can solve the problem that the product content cannot be greatly increased, and the total yield is only 72.91 %, does not comply with clean production and other issues, and achieves the effects of reducing production costs, improving purity and yield, and improving catalytic performance

Inactive Publication Date: 2007-07-18
樊福定
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Problems solved by technology

The synthesis process of this preparation method is high-temperature addition and high-temperature distillation. The synthesis reaction temperature is between 160°C and 180°C. The reaction time is short, and high boiling point substances are easily produced. The product content cannot be greatly increased, and the total yield is only 72.91%. , there is still a certain gap compared with the theoretical calculation value, and high temperature synthesis is easy to cause energy waste, which does not meet the requirements of clean production

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  • Process for synthesizing silicane coupling agent KII 560 at low temp.

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specific Embodiment approach

[0009] Equipment used in the present invention: 300L polypropylene metering tank; 500L enamel stirring reactor; 3m 3 Enamel chip condenser; flushing vacuum pump; 500L stainless steel still; 4m 3 Stainless steel condenser; stainless steel receiving kettle.

[0010] Preparation of low-temperature synthesis catalyst: 1 gram of chloroplatinic acid, 60 milliliters of isopropanol, and 0.3 gram of acetylacetone were used to prepare a chloroplatinic acid alcohol solution.

[0011] Preparation and synthesis method:

[0012] The first step: add allyl glycidyl ether and anhydrous methanol to the 500L enamel stirred reactor, and the two are matched according to the weight ratio of 1:0.25, that is, add 200kg allyl glycidol to the 500L enamel stirred reactor Ether and 50kg of anhydrous methanol, and then add an appropriate amount of low-temperature synthesis catalyst chloroplatinic acid alcohol solution, when the temperature in the stirred reactor rises from 30°C to 65°C, keep it for half...

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Abstract

The present invention discloses low temperature process of synthesizing silane coupler KH-560. The process adopts anhydrous methanol as activating material, and low temperature synthesizing catalyst of alcohol solution of chloroplatinic acid compounded with chloroplatinic acid isopropyl alcohol and acetylacetone, so that it has low synthesis temperature, 65-80 deg.c, of allyl diglycidyl ether and trimethoxyl silane. The present invention has low power consumption, effective separation between high boiling point matter and low boiling point matter, low production cost and high product purity and yield.

Description

Technical field: [0001] The invention relates to a synthesis and preparation method of silane coupling agent KH-560. Background technique: [0002] Silane coupling agent KH-560, chemical name: γ-(2,3-epoxypropoxy)propyltrimethoxysilane, used for silicone sealants, polyurethane adhesives, silicon micropowder, electronic molding compound, glass fiber, Composite insulators and other industries. In 2003, the applicant disclosed a method using trimethoxysilane HSi (OCH 3 ) 3 , allyl glycidyl ether synthetic silane coupling agent KH-560 method, it is trimethoxysilane HSi (OCH 3 ) 3 Carry out synthesis reaction with allyl glycidyl ether in a reaction kettle, the reaction temperature is set between 160°C and 180°C, and chloroplatinic acid is used as a catalyst. Negative pressure distillation is carried out in the temperature range of 186°C, and the antifreeze at -5°C to 0°C is used as the cooling liquid of the condenser tube to obtain the finished product. Its core technology ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/18C08K5/5415
Inventor 汤新华樊福定
Owner 樊福定
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