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A device for continuously preparing organosilicon monomers containing special groups and a preparation method using the device

A technology of organosilicon and groups, which is applied in the field of continuous preparation of organosilicon monomers containing special groups, which can solve the problems of potential safety hazards in the preparation method, unsafe production, large consumption, etc., and solve the problems of triggering and heat dissipation , to avoid flushing or explosion, to prevent the effect of blocking valves and pipelines

Active Publication Date: 2017-06-23
江苏矽时代材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the Grignard synthesis method commonly used at home and abroad to produce organosilicon monomers has advantages and disadvantages as follows. Classes, alkynes) etc. are introduced onto silicon atoms to prepare special organosilicon monomers, and mixed hydrocarbyl silanes with different organic groups attached to one silicon atom can also be produced, which can by-produce metal salts; the disadvantage is: the reaction When it is necessary to use a large amount of flammable ether or other solvents, not only the consumption is large, but also flammable and explosive, and the production is unsafe; the process steps are many and complicated; the raw material Grignard reagent is expensive and costly, and it is not suitable for large-scale industrial production
[0007] To sum up, it can be seen that the existing technology of Grignard synthesis in industrialization has not been well resolved, and its preparation method has potential safety hazards, high preparation costs, and inability to continue production. It cannot meet the requirements of low cost and high safety. Industrial production requirements such as the production of high-purity silicone monomers containing special groups by the Grignard method

Method used

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  • A device for continuously preparing organosilicon monomers containing special groups and a preparation method using the device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1 equipment

[0043] Such as figure 1 Shown: a device for continuously preparing organosilicon monomers containing special groups provided by the present invention, including: raw material storage 1 / 2, catalyst storage 3, raw gas storage container 4, raw material mixing container 5, and reactor 6 , magnesium feeding bin 61, heating insulation jacket 62, gas-liquid separator 63, condenser 64, glass air condenser 65, support plate 66, liquid feeding port 67, filter device 7A / 7B, filtrate storage 7, distillation tower 8. Product storage 9 , washing solvent storage 10 , tail gas recovery device 11 . The raw material storage container is connected to the raw material mixing container; the raw material mixing container is connected to the raw material gas storage container through a three-way valve; the raw material mixer 1 / 2 is connected to the feed port of the reactor 6; The overflow port of the reactor 6 is connected with the gas-liquid separator 63; the upper o...

Embodiment 2

[0075] Example 2 Preparation Example

[0076] use figure 1 The device shown continuously prepares organosilicon monomers containing special groups. The reactor used is a stirred three-phase fluidized bed reactor made of stainless steel enamel reactor with a diameter of 23cm and a length of 125cm; the lower insulation layer The length is 85cm, the overflow port is 100cm away from the bottom of the reactor, the effective reaction diameter of the reactor is 20cm, and the effective reaction volume is 31.4L.

[0077] A) drying equipment

[0078] The reactor and all piping are to be purged with dry air until dry.

[0079] B) Loading magnesium chips

[0080] Under the protection of inert gas, magnesium chips are fed into the stirred three-phase fluidized bed reactor through the magnesium feeding bin until the 5~50cm above the stirring paddle is buried.

[0081] C) Initiate a reaction

[0082]Heating the reactor means that when the temperature in the reactor reaches 65 degrees Ce...

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Abstract

The invention discloses a device for continuously preparing an organic silicon monomer containing special groups and a preparation method using the device. The preparation method of the organic silicon monomer containing the special groups is adopted for synthesizing the organic silicon monomer by using a Grignard synthesis principle and a non-catalytic one-step method. The Grignard synthesis principle is a most effect synthesis method for synthesizing the organic silicon monomer, and almost various groups can be connected to silicon atoms by using Grignard compounds. Based on the consideration that the substitution reaction can be performed for once, twice, three times and four times, and the organic groups can be different, multiple organic silicon monomers can be synthesized by using a Grignard synthesis method, and the device is particularly significant for organic silicon monomers which cannot be synthesized by using other methods and which contains the special groups.

Description

technical field [0001] The invention belongs to the technical field of chemical raw material preparation, and in particular relates to a device for continuously preparing organosilicon monomers containing special groups and a preparation method using the device. Background technique [0002] At present, the Grignard synthesis method commonly used at home and abroad to produce organosilicon monomers has advantages and disadvantages as follows. Classes, alkynes) etc. are introduced onto silicon atoms to prepare special organosilicon monomers, and mixed hydrocarbyl silanes with different organic groups attached to one silicon atom can also be produced, which can by-produce metal salts; the disadvantage is: the reaction It is necessary to use a large amount of flammable ether or other solvents, which not only consumes a lot, but also is flammable and explosive, and the production is unsafe; the process steps are many and complicated; the raw material Grignard reagent is expensiv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F7/18C07F7/08B01J19/18B01J19/00B01D29/56B01D29/27B01D29/66
Inventor 张招贵杨晖宇
Owner 江苏矽时代材料科技有限公司
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