RU94020650A - METHOD OF OBTAINING POLYBUTADIENE - Google Patents

METHOD OF OBTAINING POLYBUTADIENE

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Publication number
RU94020650A
RU94020650A RU94020650/04A RU94020650A RU94020650A RU 94020650 A RU94020650 A RU 94020650A RU 94020650/04 A RU94020650/04 A RU 94020650/04A RU 94020650 A RU94020650 A RU 94020650A RU 94020650 A RU94020650 A RU 94020650A
Authority
RU
Russia
Prior art keywords
reactors
butadiene
polybutadiene
reactor
butyllithium
Prior art date
Application number
RU94020650/04A
Other languages
Russian (ru)
Other versions
RU2080328C1 (en
Inventor
В.И. Аксенов
В.С. Ряховский
В.И. Хлустиков
Г.Н. Грунин
И.П. Гольберг
В.Н. Забористов
В.Л. Золотарев
Э.З. Муртазин
В.С. Глаголев
А.С. Бырихин
Original Assignee
Акционерное общество открытого типа "Ефремовский завод синтетического каучука"
Filing date
Publication date
Application filed by Акционерное общество открытого типа "Ефремовский завод синтетического каучука" filed Critical Акционерное общество открытого типа "Ефремовский завод синтетического каучука"
Priority to RU94020650A priority Critical patent/RU2080328C1/en
Priority claimed from RU94020650A external-priority patent/RU2080328C1/en
Publication of RU94020650A publication Critical patent/RU94020650A/en
Application granted granted Critical
Publication of RU2080328C1 publication Critical patent/RU2080328C1/en

Links

Claims (1)

Изобретение относится к области синтетического каучука, а сам получаемый продукт может использоваться в шинной, резинотехнической промышленностях, в производстве ударопрочного полистирола. Сущность изобретения заключается в том, что процесс полимеризации бутадиена-1, 3 осуществляют в батарее последовательно расположенных реакторов, состоящей из по крайней мере четырех реакторов, в среде толуола, шихту с содержанием 12 - 20 мас.% бутадиена-1, 3 делят на два потока в массовом соотношении от 1 : 2,5 до 1 : 8 и подают их соответственно в первый и третий реакторы, в первый реактор вводят н-бутиллитий при мольном соотношении н-бутиллитий: бутадиен-1, 3 от 1 : 370 до 1 : 530, во второй и третий реакторы вводят дивинилбензол из расчета мольного соотношения дивинилбензол: литийполибутадиен от 0,1 : 1 до 0,3 : 1, в третий реактор вводят от 5 до 50 мас.% литийполибутадиена из первого реактора, причем температура полимеризации бутадиена-1, 3 в первом и втором реакторах 40 - 55oС, в остальных 55 - 100oС. Способ позволяет получать полибутадиен с необходимым комплексом свойств и эффективно их регулировать в широких пределах.The invention relates to the field of synthetic rubber, and the resulting product can be used in the tire, rubber industries, in the production of high-impact polystyrene. The essence of the invention lies in the fact that the polymerization process of butadiene-1, 3 is carried out in a battery of consecutive reactors consisting of at least four reactors in toluene, the mixture containing 12–20 wt.% Butadiene-1, 3 is divided into two flow in a mass ratio of from 1: 2.5 to 1: 8 and fed them respectively to the first and third reactors, n-butyllithium is introduced into the first reactor at a molar ratio of n-butyllithium: butadiene-1, 3 from 1: 370 to 1: 530, divinylbenzene is introduced into the second and third reactors at the rate of the molar ratio I divinylbenzene: lithium polybutadiene from 0.1: 1 to 0.3: 1, in the third reactor enter from 5 to 50 wt.% lithium polybutadiene from the first reactor, and the polymerization temperature of butadiene-1, 3 in the first and second reactors 40 - 55 o C, in the remaining 55 - 100 o C. The method allows to obtain polybutadiene with the necessary complex of properties and effectively regulate them within wide limits.
RU94020650A 1994-06-02 1994-06-02 Process for preparing polybutadiene RU2080328C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94020650A RU2080328C1 (en) 1994-06-02 1994-06-02 Process for preparing polybutadiene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94020650A RU2080328C1 (en) 1994-06-02 1994-06-02 Process for preparing polybutadiene

Publications (2)

Publication Number Publication Date
RU94020650A true RU94020650A (en) 1996-01-27
RU2080328C1 RU2080328C1 (en) 1997-05-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU94020650A RU2080328C1 (en) 1994-06-02 1994-06-02 Process for preparing polybutadiene

Country Status (1)

Country Link
RU (1) RU2080328C1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5559160B2 (en) * 2008-06-18 2014-07-23 スティロン ヨーロッパ ゲゼルシャフト ミット ベシュレンクテル ハフツング Low chlorine polybutadiene
KR102314628B1 (en) * 2017-11-13 2021-10-20 주식회사 엘지화학 Method for preparing conjugated diene polymer by continuous polymerization

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