CN105622820A - Chlorinated butyl rubber synthesis technology - Google Patents
Chlorinated butyl rubber synthesis technology Download PDFInfo
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- CN105622820A CN105622820A CN201410588173.XA CN201410588173A CN105622820A CN 105622820 A CN105622820 A CN 105622820A CN 201410588173 A CN201410588173 A CN 201410588173A CN 105622820 A CN105622820 A CN 105622820A
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- butyl rubber
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Abstract
The invention discloses a chlorinated butyl rubber synthesis technology. The technology comprises the two serial processes of butyl rubber chlorination and chlorination mixed liquid neutralization. The technology is characterized in that a pipeline reactor is used to mix an alkane solution of Cl2 and an alkane solution of butyl rubber in order to start a chlorination reaction, an alkaline solution is introduced by using another pipeline reactor after retention in a subsequent pipeline for 30-50s in order to start a neutralization reaction, and the reaction ends after retention in the subsequent pipeline for 10-80s. The technology has the characteristics of fast reaction speed, short reaction time, accurate control of the time, and facilitation of inhibition of conversion of a secondary chloro-substituted main product to a primary chloro-substituted byproduct, and all indexes of the above obtained product are excellent.
Description
Technical field
The invention belongs to chemical process field, be specifically related to a kind of chlorinated scoline synthesis technique.
Background technology
Chlorinated scoline synthesis technique at least includes the basic processes such as chlorination reaction, catalysis, polymerization, neutralization reaction. In current chlorinated scoline synthesis technique, technological process is not easy to implement, and separation efficiency is low, it is impossible to achieve the recycling of raw material, and manufacturing process is complicated, and production efficiency is low.
Summary of the invention
For the above-mentioned technical problem overcoming prior art to exist, it is an object of the invention to, it is provided that a kind of chlorinated scoline synthesis technique, the present invention not only manufacturing process is simple, improve work efficiency, and achieves the guarantee of product quality.
Chlorinated scoline synthesis technique provided by the invention, comprises the following steps:
(1) alkane solution that butyl rubber concentration is 13 ~ 22wt% is contacted mixing with the alkane solution that Cl2 concentration is 12 ~ 15wt% in the first pipeline reactor, carry out chlorination reaction; Wherein Cl2 is 0.9 ~ 2.0 with the mol ratio of double bond in butyl rubber;
(2) above-mentioned mixed liquor is in the subsequent pipeline of the first pipeline reactor after the time of staying of 30 ~ 50s, enters second pipe formula reactor and mixes with alkali liquor, is neutralized reaction;
(3) after neutralization reaction carries out 10 ~ 80s in the subsequent pipeline of second pipe formula reactor, entering phase separation tank, upper phase is chlorinated scoline production fluid.
Chlorinated scoline synthesis technique provided by the invention, it has the beneficial effects that, overcoming prior art, to prepare operation in chlorinated scoline process more, and the problem that workload is big improves work efficiency; Improve the utilization rate of catalyst.
Detailed description of the invention
Below in conjunction with an embodiment, chlorinated scoline synthesis technique provided by the invention is described in detail.
Embodiment
The chlorinated scoline synthesis technique of the present embodiment, comprises the following steps:
(1) alkane solution that butyl rubber concentration is 22wt% is contacted mixing with the alkane solution that Cl2 concentration is 15wt% in the first pipeline reactor, carry out chlorination reaction; Wherein Cl2 is 0.9 with the mol ratio of double bond in butyl rubber;
(2) above-mentioned mixed liquor is in the subsequent pipeline of the first pipeline reactor after the time of staying of 50s, enters second pipe formula reactor and mixes with alkali liquor, is neutralized reaction;
(3) after neutralization reaction carries out 10s in the subsequent pipeline of second pipe formula reactor, entering phase separation tank, upper phase is chlorinated scoline production fluid.
Chlorinated scoline synthesis technique, can directly prepare chlorinated scoline, it is not necessary to be processed further, and operation is simple, and measurement data is accurate, it is easy to implement.
Claims (1)
1. a chlorinated scoline synthesis technique, it is characterised in that: said method comprising the steps of:
(1) alkane solution that butyl rubber concentration is 13 ~ 22wt% is contacted mixing with the alkane solution that Cl2 concentration is 12 ~ 15wt% in the first pipeline reactor, carry out chlorination reaction; Wherein Cl2 is 0.9 ~ 2.0 with the mol ratio of double bond in butyl rubber;
(2) above-mentioned mixed liquor is in the subsequent pipeline of the first pipeline reactor after the time of staying of 30 ~ 50s, enters second pipe formula reactor and mixes with alkali liquor, is neutralized reaction;
(3) after neutralization reaction carries out 10 ~ 80s in the subsequent pipeline of second pipe formula reactor, entering phase separation tank, upper phase is chlorinated scoline production fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410588173.XA CN105622820A (en) | 2014-10-29 | 2014-10-29 | Chlorinated butyl rubber synthesis technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410588173.XA CN105622820A (en) | 2014-10-29 | 2014-10-29 | Chlorinated butyl rubber synthesis technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105622820A true CN105622820A (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410588173.XA Pending CN105622820A (en) | 2014-10-29 | 2014-10-29 | Chlorinated butyl rubber synthesis technology |
Country Status (1)
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| CN (1) | CN105622820A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160057A (en) * | 2021-11-24 | 2022-03-11 | 瑞易德新材料股份有限公司 | Chlorinated butyl rubber production device and production method thereof |
-
2014
- 2014-10-29 CN CN201410588173.XA patent/CN105622820A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160057A (en) * | 2021-11-24 | 2022-03-11 | 瑞易德新材料股份有限公司 | Chlorinated butyl rubber production device and production method thereof |
| CN114160057B (en) * | 2021-11-24 | 2022-09-16 | 瑞易德新材料股份有限公司 | Chlorinated butyl rubber production device and production method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160601 |