Method for preparing organic silicon compound from amorphous silica

Abstract

The characteristic is that precipitation white carbon and residue of nonmetal ore extracted metal ion with amorphous silicon dioxide as main composition are used as silicon contained raw material. In alkali metal hydroxide medium or alkaline-earth metal hydroxide medium, there are silicon contained raw materials and orthoglycol which are generated organic silicon compound by distilling reaction.

Description

Technical field: [0001] The invention relates to a preparation method of an organosilicon compound. Background technique: [0002] The traditional organic silicon synthesis method is to reduce quartz to simple silicon at a high temperature of 1200 ° C, and then react with halogenated hydrocarbons in the presence of a catalyst to produce silyl halides, and finally prepare different organic silicon compounds according to needs. This method has the disadvantages of long reaction time, complex intermediate process, and large energy consumption. [0003] People such as R.M.Laine published the article of directly synthesizing five and six ligand organosilicon compounds by silicon dioxide in 1991, and the method used has solved the deficiency that exists in the traditional organosilicon synthesis method preferably, and the organosilicon compound of gained not only It can be used to prepare traditional organic silicon materials, and can also be used to prepare many useful new chemi...

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Problems solved by technology

However, there are still some deficiencies in the currently reported method for directly synthesizing organosilicon compounds from silicon dioxide: the first is that the raw materials used for the synthesis are silica gel, fused silicon and fumed silica, and their prices are relatively high, such as fumed silica Heida 60,000 yuan / ton

The existence of this problem will directly affect the production cost and the competitiveness of the product in the market; the second is that the method used in the synthesis is the common heating method under the protection of nitrogen, and the reaction time is still relatively long

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