SU1641798A1 - Method for obtaining trimers and tetramers of propylene - Google Patents

Method for obtaining trimers and tetramers of propylene Download PDF

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Publication number
SU1641798A1
SU1641798A1 SU884382664A SU4382664A SU1641798A1 SU 1641798 A1 SU1641798 A1 SU 1641798A1 SU 884382664 A SU884382664 A SU 884382664A SU 4382664 A SU4382664 A SU 4382664A SU 1641798 A1 SU1641798 A1 SU 1641798A1
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SU
USSR - Soviet Union
Prior art keywords
propylene
tetramers
trimers
yield
increase
Prior art date
Application number
SU884382664A
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Russian (ru)
Inventor
Азат Шаймуллович Зиятдинов
Ольга Владимировна Софронова
Владимир Анатольевич Курбатов
Виталий Николаевич Писаренко
Энвер Иззетович Аблякимов
Василий Фролович Подтихов
Юрий Александрович Румянцев
Кави Каюмович Хазиев
Ринат Галиевич Галиев
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Предприятие П/Я В-8873
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Application filed by Предприятие П/Я В-8873 filed Critical Предприятие П/Я В-8873
Priority to SU884382664A priority Critical patent/SU1641798A1/en
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Publication of SU1641798A1 publication Critical patent/SU1641798A1/en

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/02—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons
    • C07C2/04—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation
    • C07C2/06—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation of alkenes, i.e. acyclic hydrocarbons having only one carbon-to-carbon double bond
    • C07C2/08—Catalytic processes
    • C07C2/14—Catalytic processes with inorganic acids; with salts or anhydrides of acids
    • C07C2/18—Acids of phosphorus; Salts thereof; Phosphorus oxides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • C07C2527/14—Phosphorus; Compounds thereof
    • C07C2527/16—Phosphorus; Compounds thereof containing oxygen
    • C07C2527/167—Phosphates or other compounds comprising the anion (PnO3n+1)(n+2)-
    • C07C2527/173—Phosphoric acid or other acids with the formula Hn+2PnO3n+1

Abstract

Изобретение касаетс  производства олефинов, в частности получени  тримеров и тетрамеров пропилена,что может быть использовано в нефтехимии . Цель изобретени  - повышение выхода целевых продуктов. Процесс ведут олигомеризацией пропилена в присутствии твердого фосфорнокислотного катализатора и 0,2-2,0 мас.% гепте- нов (в расчете на пропилен) при нагревании и давлении с выделением фракции димеров из олигомеризата и возвращением ее в процесс. Эти услови  обеспечивают повышение выхода тримеров с 36,3 до 39,3% и тетрамеров с 12,3 до 14,8%. 1 табл. с SThe invention relates to the production of olefins, in particular the production of trimers and propylene tetramers, which can be used in petrochemistry. The purpose of the invention is to increase the yield of target products. The process is carried out by the oligomerization of propylene in the presence of a solid phosphoric acid catalyst and 0.2–2.0 wt.% Of heptones (based on propylene) under heating and pressure, with the separation of the dimer fraction from the oligomerizate and its return to the process. These conditions provide an increase in the yield of trimers from 36.3 to 39.3% and tetramers from 12.3 to 14.8%. 1 tab. with s

Description

Изобретение относитс  к получению олигомеров пропилена на фосфорно- кислотных катализаторах.This invention relates to the preparation of propylene oligomers on phosphoric acid catalysts.

Цель изобретени  - повышение выхода тримеров и тетрамеров пропилена.The purpose of the invention is to increase the yield of propylene trimers and tetramers.

Пример 1. На пилотной установке в реакторе, представл ющем трубку из нержавеющей стали ф 32 мм, загруженном катализатором (полифосфорна  кислота на силикагеле) (ТУ- 3340243-87), содержащем 54,9 мас.% PZ°$ в том числе свободного . - 17,5 мас.%, ведут олигомеризацию пропилена (ТУ 38-10276-74, марка А) в присутствии 1,2 мас.% димеров.Процесс осуществл ют при температуре 200°С, давлении 60 атм, объемной скорости подачи пропилена 5 в течение 10 ч. Загрузка катализатора 50 мл. Состав получаемого олигомеризата анализируют газохроматографи- чески.Example 1. In a pilot plant in a reactor representing a tube of stainless steel with a diameter of 32 mm, loaded with a catalyst (polyphosphoric acid on silica gel) (TU-3340243-87), containing 54.9 wt.% PZ ° $ including free. - 17.5 wt.%, Lead to oligomerization of propylene (TU 38-10276-74, grade A) in the presence of 1.2 wt.% Dimers. The process is carried out at a temperature of 200 ° C, a pressure of 60 atm, a space velocity of propylene 5 within 10 hours. Catalyst loading 50 ml. The composition of the resulting oligomerizate is analyzed by gas chromatography.

Выход и состав продуктов олиго- меризации представлен в таблице.The yield and composition of the oligomerization products are presented in the table.

Примеры 2-6. Опыты осуществл ют в услови х примера 1, но в состав сырь  ввод т различные количества фракции гептенов.Examples 2-6. The experiments were carried out under the conditions of Example 1, but different amounts of heptenes were introduced into the composition of the raw material.

Claims (1)

Полученные результаты представлены в таблице. i Формула изобретени The results obtained are presented in the table. i Formula of invention Способ получени  тримеров и тетрамеров пропилена путем олигомериза- ции пропилена в присутствии твердо- го фосфорнокислотного катализатора при повышенной температуре и давлении в присутствии гептенов с выделением из олигомеризата фракции димеО .ЈThe method of producing trimers and propylene tetramers by oligomerizing propylene in the presence of a solid phosphoric acid catalyst at elevated temperature and pressure in the presence of heptenes, separating the dimeO fraction from the oligomerizate. 1one SO 00SO 00 ров и рециклом ее на олигомеризацию, отличающийс  тем, что, с целью увеличени  выхода целевыхand recycle it to oligomerization, characterized in that, in order to increase the yield of the target продуктов, гептен используют в количестве 0,2-2,0 мас.% в расчете на пропилен.products, heptenis used in the amount of 0.2-2.0 wt.% based on propylene.
SU884382664A 1988-02-18 1988-02-18 Method for obtaining trimers and tetramers of propylene SU1641798A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU884382664A SU1641798A1 (en) 1988-02-18 1988-02-18 Method for obtaining trimers and tetramers of propylene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU884382664A SU1641798A1 (en) 1988-02-18 1988-02-18 Method for obtaining trimers and tetramers of propylene

Publications (1)

Publication Number Publication Date
SU1641798A1 true SU1641798A1 (en) 1991-04-15

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Application Number Title Priority Date Filing Date
SU884382664A SU1641798A1 (en) 1988-02-18 1988-02-18 Method for obtaining trimers and tetramers of propylene

Country Status (1)

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Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Мучинский Д.Я., Поталовский Л.А. Полимеризаци пропилена. М.: Хими , 1964, с. 42-45. Андреас Ф., Гребе К. Хими и технологи пропилена. Л.: Хими , 1973, с. 244, 245. *

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