A kind of production device and method of polyether modified silicone

A technology of polyether modification and production method, which is applied in the field of preparation of polyether modified silicone, which can solve problems such as damage to health, pollution of the environment, and low production capacity, so as to improve reactivity, reduce potential safety hazards, and reduce production costs Effect

Active Publication Date: 2019-08-20
南京美思德新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a production device and method for polyether-modified silicone, to solve the problem that in the process of preparing polyether-modified silicone oil proposed in the above-mentioned background technology, the reaction involving high molecular weight polyether is difficult to carry out, It is usually necessary to introduce solvents (such as toluene, isopropanol, etc.) to promote the reaction, which not only pollutes the environment, but also damages human health. The traditional device for preparing polyether-modified silicone is a batch reaction device, and the production capacity is low.

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  • A kind of production device and method of polyether modified silicone
  • A kind of production device and method of polyether modified silicone
  • A kind of production device and method of polyether modified silicone

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Embodiment 1

[0036] In this embodiment, the ceramic membrane tube 14 used is alumina, the diameter of the ceramic membrane tube 14 is 20mm, the average aperture of the ceramic membrane is 50nm, the center distance of the ceramic membrane tube 14 is 1.6 times of the diameter of the membrane tube, and the ceramic membrane tube 14 is from The unsealed end is sealed with a 10cm hole downwards in the longitudinal direction, the stirring device 18 is a multistage stirring device, the distance between each section is 30cm, the catalyst consumption is 3ppm, and the polyether (M=about 850g / mol) temperature after heating is 80°C, the pressure applied by the pressurizing device 5 to the hydrogen-containing silicone oil (Si-H value: 0.904g / kg) is 0.3Mpa, and the temperature of the hydrogen-containing silicone oil is 80°C after being heated by the hydrogen-containing silicone oil heating device 6. In this embodiment , after the material stayed in the membrane dispersion reactor 3 for 0.5h, the Si-H conv...

Embodiment 2

[0038] In this embodiment, the ceramic membrane tube 14 used is zirconia, the diameter of the ceramic membrane tube 14 is 40 mm, the average aperture of the ceramic membrane is 10 μm, the center distance of the ceramic membrane tube 14 is twice the diameter of the membrane tube, and the ceramic membrane tube 14 is from Unsealed one end is sealed with 25cm holes downwards in the longitudinal direction, stirring device 18 is a multistage stirring device, the distance between each section is 55cm, and the catalyst consumption is 4.5ppm, and the polyether (M=1300g / mol) temperature after heating is 90°C, the pressure applied by the pressurizing device 5 to the hydrogen-containing silicone oil (1.54g / kg) is 2Mpa, and the temperature of the hydrogen-containing silicone oil is 90°C after being heated by the hydrogen-containing silicone oil heating device 6. In this embodiment, the material is in the membrane dispersion reactor After staying in 3 for 1 h, the Si-H conversion was 99.6%. ...

Embodiment 3

[0040] In this embodiment, the ceramic membrane tube 14 used is silicon carbide, the diameter of the ceramic membrane tube 14 is 60 mm, the average aperture of the ceramic membrane is 20 μm, the center distance of the ceramic membrane tube 14 is 2.4 times of the diameter of the membrane tube, and the ceramic membrane tube 14 is from Unsealed one end is sealed with 40cm holes downwards in the longitudinal direction, stirring device 18 is a multistage stirring device, the distance between every section is 55cm, and the catalyst consumption is 6ppm, the polyether (M=4000g / mol) temperature is 100°C, the pressure applied by the pressurizing device 5 to the hydrogen-containing silicone oil is 3Mpa, and the temperature of the hydrogen-containing silicone oil (Si-H value: 1.44g / kg) is 100°C after being heated by the hydrogen-containing silicone oil heating device 6. In the embodiment, after the material stays in the membrane dispersion reactor 3 for 1.5h, the Si-H conversion rate is ≥...

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Abstract

The invention discloses a device and a method for producing polyether-modified organic silicon in the technical field of preparation of the polyether-modified organic silicon. The device comprises a polyether storage tank, wherein the left side of a polyether delivery device is connected with a membrane dispersion reactor through a pipeline; a hydrogen-containing silicon oil heating device is connected with a hydrogen-containing silicon oil delivery device through a pipeline. By introducing a ceramic membrane tube to the membrane dispersion reactor and highly dispersing reaction materials into micro-nano liquid drops by utilizing a ceramic membrane, the reaction activity of the reaction materials is increased, and the reaction speed is quickened; for reaction which can be executed in need of a large amount of solvents, the use of the solvents can be reduced or avoided; for reaction which is easy to execute, hydrogen generated during a reaction process is prevented from being in contact with oxygen in environment as the membrane dispersion reactor is in a full charge state under the technological conditions of less catalysts, low reaction temperature and shorter reaction time, and potential safety hazard existing in the production process can be further reduced.

Description

technical field [0001] The invention relates to the technical field of preparation of polyether-modified silicone, in particular to a production device and method of polyether-modified silicone. Background technique [0002] In the process of preparing polyether-modified silicone oil, the reaction involving high-molecular-weight polyether is difficult to carry out, and it is usually necessary to introduce a solvent (such as toluene) to promote the reaction, which not only pollutes the environment, but also damages human health. [0003] The traditional equipment for preparing polyether-modified silicone is a batch reaction equipment with low production capacity. For example, the Chinese patent application number is 201220167969.4, which proposes a reaction device for organic synthesis or polymer polymerization, which includes: a reaction device for organic synthesis or polymer polymerization, and the reaction device includes a reaction device for mixing and participating in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/46
Inventor 郭雪丽孙宇李丰富
Owner 南京美思德新材料有限公司
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