Preparation of methyl tributanoximo silane

A technology of methyl tributanone oxime and silane, which is applied in the field of preparation of methyl tributyl ketoxime silane, can solve the problems that the reactants are easy to contact with air, the production cannot be carried out continuously, the process is not safe, etc., and the product is effective. High content, high utilization rate, good volatility effect

Active Publication Date: 2009-01-21
湖北新蓝天新材料股份有限公司
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Problems solved by technology

[0004] The purpose of this invention is to provide a kind of preparation method of methyl tributyl ketoxime base silane, when preparing methyl tributyl ketoxime base silane to solve existing method...

Method used

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  • Preparation of methyl tributanoximo silane
  • Preparation of methyl tributanoximo silane

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Embodiment Construction

[0019] Methyltrichlorosilane, butanone oxime, ammonia, and 120# solvent gasoline are pumped into the reaction kettle by the metering pump at the same time according to the mass ratio of 1:1.8:0.34:1, and the temperature is controlled at 35-40 Any value between ℃, react under normal pressure for 30 minutes, then extract the reactant, filter through a centrifuge to obtain the filtrate and ammonium chloride precipitate, and the ammonium chloride precipitate is dried in a dryer to obtain ammonium chloride.

[0020] Then, under the condition that the pressure is -0.098Mpa and the temperature is 100-120°C (any value between 100-120°C is feasible), the filtrate is distilled off 120# solvent gasoline through a falling film evaporator to obtain methyl tributyl ketone The crude product of oxime-based silane; continue to pass 120# solvent gasoline through the flash tank, and the distillate is cooled to obtain pure 120# solvent gasoline, and the remaining high boilers are returned to the s...

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Abstract

The invention provides a method for preparing methyltris(methylethylketoxime)silane. The method comprises the following steps that: a. methyl trichlorosilane, butanone oxime, alkaline air and 120#solvent naphtha are simultaneously pumped in a reaction kettle by a measuring pump and reacted for 30m under the normal pressure and at a temperature of between 35 to 40 DEG C, and reactants are picked up and filtered by a centrifuge so as to obtain a filtrate and ammonium chloride deposit; b. the filtrate passes through a falling-film evaporator to distill off 120#solvent naphtha, and the coarse product of methyltris(methylethylketoxime)silane is obtained; c. the coarse product of methyltris(methylethylketoxime)silane is put in a scraper evaporator for distillation, the remained butanone oxime is distilled off, and the refined product is obtained. The process of the invention has the characteristics of big productivity, low energy consumption, simple control and greenness and environmental protection, etc.; moreover, the product yield is 95 percent, the effective content of the product is high, and the content of methyltris(methylethylketoxime)silane is more than 96 percent.

Description

technical field [0001] The invention relates to a method for preparing organosilicon, in particular to a method for preparing methyl tributylketoxime silane. Background technique [0002] Methyl tributyl ketoxime silane is mainly used as a curing agent for silica gel and an anti-skinning agent for alkyd resin coatings. The existing preparation method of methyl tributanone oxime silane is: put butanone oxime and solvent into the reaction kettle, slowly add methyl trichlorosilane dropwise through the head tank; layer; the upper layer material is neutralized and the solvent is evaporated to obtain the finished product, and the lower layer material is recovered butanone oxime. [0003] The above-mentioned technique has the following disadvantages: 1. The reaction is carried out intermittently, and continuous production cannot be realized, so the efficiency is low and the output is small. 2. In the reaction process, the reactants have many opportunities to contact the air, and ...

Claims

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Application Information

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IPC IPC(8): C07F7/18
Inventor 肖俊平赵家旭
Owner 湖北新蓝天新材料股份有限公司
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