A kind of synthetic method of gamma-chloropropyl trichlorosilane
A technology of chloropropyltrichlorosilane and synthesis method, which is applied in the direction of chemical instruments and methods, compounds of group 4/14 elements of the periodic table, organic compounds/hydrides/coordination complex catalysts, etc., and can solve reflux condensation The cooling capacity consumption of the device is large, the reactant dripping time is long, and it is not suitable for large-scale production, etc., so as to achieve the effect of accelerating the reaction speed, shortening the reaction cycle and high product yield
Active Publication Date: 2016-06-08
ZHEJIANG HUAYI ENG DESIGN
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[0004] The above-mentioned gamma-chloropropyltrichlorosilane preparation method mainly has the following disadvantages: (1) the reactant dripping time is long, the production cycle is long, and it is not suitable for large-scale production; (2) the reaction temperature is low, the catalytic activity of the catalyst is low, and it takes a long time The induction period of time; (3) normal pressure reaction causes large loss of material and low product yield; (4) low boiling point of raw material, large cooling capacity consumption of reflux condenser, high energy consumption
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[0013] Compared with the prior art, the synthesis method of gamma-chloropropyl trichlorosilane of the present invention adopts the same reaction raw materials, and the two main differences are the change of the reaction process and the adjustment of the catalyst.
[0014] The specific implementation of the catalyst is first described below: the present invention uses the chloroplatinic acid-phenothiazine-organic amine complex as a catalyst, and in the chloroplatinic acid-phenothiazine-organic amine complex catalyst, the chloroplatinic acid , phenothiazine, and the molar ratio of the organic amine complex is 1:20-40:10-50.
[0015] The chloroplatinic acid-phenothiazine-organic amine complex is that the catalyst can be chloroplatinic acid-phenothiazine-tri-n-propylamine complex or chloroplatinic acid-phenothiazine-tri-n-butylamine complex or Chloroplatinic acid-phenothiazine-triisobutylamine complex.
[0016] The synthesis process is as follows: first add a small amount of tric...
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The invention discloses a synthesis method of γ-chloropropyl trichlorosilane, which uses trichlorosilane and chloropropene as raw materials, and adopts chloroplatinic acid-phenothiazine-organic amine complex as a catalyst; the synthesis process The method is: first add the chloroplatinic acid-phenothiazine-organic amine complex catalyst into the pressure reactor, and at a reaction temperature of 100-180°C, drop trichlorosilane and Two kinds of reaction materials of chloropropene, after heat preservation reaction for 10-60 minutes, complete the synthesis of γ-chloropropyl trichlorosilane; the dropping time of the trichlorosilane and chloropropene is 1.5-2.5 hours; the reaction kettle The internal pressure is 0.3-1.1MPa. The synthesis method of gamma-chloropropyltrichlorosilane of the present invention has the characteristics of short reaction time, high production efficiency, less material loss, high product yield and the like.
Description
technical field [0001] The invention relates to a method for synthesizing gamma-chloropropyltrichlorosilane, which belongs to the technical field of chemical synthesis. Background technique [0002] γ-Chloropropyltrichlorosilane (Cl(CH 2 ) 3 SiCl 3 ) is one of the most important intermediates in the production of silane coupling agent products. It can be used as the main raw material to produce chloropropyl triethyl (meth)oxysilane, aminopropyl triethyl (meth)oxysilane, bis ( Silane coupling agent products such as triethoxysilylpropyl) tetrasulfide are important additives in rubber products and glass fiber reinforced materials. [0003] The synthesis of γ-chloropropyltrichlorosilane is prepared by hydrosilylation reaction of trichlorosilane and chloropropene under the action of platinum, rhodium, palladium and other noble metal compounds or complex catalysts, through the reaction product Distillation and separation can obtain industrial grade γ-chloropropyl trichlorosila...
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IPC IPC(8): C07F7/12B01J31/30
Inventor 唐友明赵外荣
Owner ZHEJIANG HUAYI ENG DESIGN