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Method for continuously preparing polyisobutene

A technology of polyisobutylene and isobutylene, which is applied in the field of continuous preparation of polyisobutene, can solve the problems of non-continuous preparation, material performance needs to be improved, and complex preparation methods of polyisobutylene, etc., and achieves the effects of continuous preparation, convenient operation and improved high temperature resistance

Inactive Publication Date: 2021-09-14
GUANGDONG ALLPASS LUBRICATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings of the existing polyisobutene preparation methods, which are complicated, cannot be continuously prepared, and the material performance of polyisobutene preparation needs to be improved, and propose a method for continuously preparing polyisobutene

Method used

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  • Method for continuously preparing polyisobutene

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] refer to figure 1 , a method for continuously preparing polyisobutylene, comprising the following preparation steps:

[0032] S1: Preparation of raw materials: organic liquid, isobutene, 1-butene, 2-butene, Lewis acid catalyst, antioxidant and anti-aging agent components, high-temperature resistant agent components, antioxidant and anti-aging agent components include sodium carbonate, benzoyl chloride ;High temperature resistant agent components include polyolefin, mica powder;

[0033] S2: Prepare the reactor and prepare: Prepare two connected reactors, the two reactors are A reactor and B reactor, first clean the two reactors, then add the organic liquid into the A reactor, and Control the temperature of the reactor, add isobutene, 1-butene, and 2-butene to the organic liquid in A reactor and fully mix, intermittently add a Lewis acid catalyst, and carry out polymerization reaction to obtain a semi-finished polyisobutene liquid;

[0034] S3: Reaction preparation: Se...

Embodiment 2

[0049] refer to figure 1 , a method for continuously preparing polyisobutylene, comprising the following preparation steps:

[0050] S1: Prepare raw materials: organic liquid, isobutylene, 1-butene, 2-butene, Lewis acid catalyst, antioxidant and anti-aging agent components, high-temperature resistant agent components, and antioxidant and anti-aging agent components include epoxy resin, methyl Hydroxypropyl acrylate; high temperature resistant agent components include aluminate coupling agent, polyisoprene raw materials;

[0051] S2: Prepare the reactor and prepare: Prepare two connected reactors, the two reactors are A reactor and B reactor, first clean the two reactors, then add the organic liquid into the A reactor, and Control the temperature of the reactor, add isobutene, 1-butene, and 2-butene to the organic liquid in A reactor and fully mix, intermittently add a Lewis acid catalyst, and carry out polymerization reaction to obtain a semi-finished polyisobutene liquid;

...

Embodiment 3

[0067] refer to figure 1 , a method for continuously preparing polyisobutylene, comprising the following preparation steps:

[0068] S1: Preparation of raw materials: organic liquid, isobutylene, 1-butene, 2-butene, Lewis acid catalyst, antioxidant and anti-aging agent components, high-temperature resistant agent components, and antioxidant and anti-aging agent components include tributoxyethyl phosphoric acid Esters and polyolefins; high temperature resistant agent components include polyimide and polyamide fibers;

[0069] S2: Prepare the reactor and prepare: Prepare two connected reactors, the two reactors are A reactor and B reactor, first clean the two reactors, then add the organic liquid into the A reactor, and Control the temperature of the reactor, add isobutene, 1-butene, and 2-butene to the organic liquid in A reactor and fully mix, intermittently add a Lewis acid catalyst, and carry out polymerization reaction to obtain a semi-finished polyisobutene liquid;

[00...

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Abstract

The invention belongs to the technical field of polyisobutene preparation, particularly relates to a method for continuously preparing polyisobutene, and provides the following scheme aiming at the problems that an existing polyisobutene preparation mode is complex, continuous preparation cannot be performed, and the performance of a material prepared from polyisobutene needs to be improved. The preparation method comprises the following preparation steps that S1, raw materials are prepared, wherein the raw materials comprise an organic liquid, isobutene, 1-butene, 2-butene, a Lewis acid catalyst, an antioxidant and anti-aging agent component and a high-temperature-resistant agent component, the antioxidant and anti-aging agent component comprises any one or two of sodium carbonate, benzoyl chloride, an epoxy resin, hydroxypropyl methacrylate, tris(2-butoxyethyl) phosphate and polyolefin, and the high-temperature-resistant agent comprises polyolefin, mica powder, an aluminate coupling agent and polyisoprene raw materials. The method is convenient to operate, the polyisobutene preparation mode is simple, continuous preparation can be achieved, and the anti-oxidation, anti-aging and high-temperature-resistant performance of the polyisobutene can be improved.

Description

technical field [0001] The invention relates to the technical field of polyisobutene preparation, in particular to a method for continuously preparing polyisobutene. Background technique [0002] Polyisobutylene is a polymer prepared by cationic polymerization of isobutylene, and its molecular weight can range from hundreds to millions. Polyisobutylene (PIB) is a colorless, odorless, non-toxic viscous or semi-solid substance. It has good chemical properties such as heat resistance, oxygen resistance, ozone resistance, weather resistance, ultraviolet resistance, acid and alkali resistance. It is used in lubricating oil Additives, post-processing of polymer materials, medicine and cosmetics, food additives and other fields all have very important uses. PIB with a medium molecular weight is mainly used as a chewing gum base and insulating glass sealing material, as well as agricultural insecticides. [0003] The existing polyisobutene preparation methods are complex and cannot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F210/10C08F210/08C08F2/01C08L23/22C08L23/00C08L47/00C08L79/08C08L77/00C08L63/00C08K3/34C08K3/26
CPCC08F210/10C08L23/22C08K2003/262C08L2201/08C08F210/08C08F2/01C08L23/00C08L47/00C08L79/08C08L77/00C08L63/00C08K3/34C08K3/26
Inventor 范承东范泉泉姜升王天文高治丰顾娜娜陈帆
Owner GUANGDONG ALLPASS LUBRICATION TECH
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