SU1697381A1 - Method for production of 2-ethylhexylic acid - Google Patents

Method for production of 2-ethylhexylic acid

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Publication number
SU1697381A1
SU1697381A1 SU4819152/04A SU4819152A SU1697381A1 SU 1697381 A1 SU1697381 A1 SU 1697381A1 SU 4819152/04 A SU4819152/04 A SU 4819152/04A SU 4819152 A SU4819152 A SU 4819152A SU 1697381 A1 SU1697381 A1 SU 1697381A1
Authority
SU
USSR - Soviet Union
Prior art keywords
hydrogenation
alkyl
mentioned above
containing gas
hydrogen
Prior art date
Application number
SU4819152/04A
Other languages
Russian (ru)
Inventor
М.Г. Кацнельсон
С.Ш. Кагна
Г.Н. Тюкавин
П.В. Безворотный
Е.Н. Пантелеймонов
Б.А. Быков
Original Assignee
Ленинградское научно-производственное объединение по разработке и внедрению нефтехимических процессов "Леннефтехим"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Ленинградское научно-производственное объединение по разработке и внедрению нефтехимических процессов "Леннефтехим" filed Critical Ленинградское научно-производственное объединение по разработке и внедрению нефтехимических процессов "Леннефтехим"
Priority to SU4819152/04A priority Critical patent/SU1697381A1/en
Application granted granted Critical
Publication of SU1697381A1 publication Critical patent/SU1697381A1/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

FIELD: organic chemistry. SUBSTANCE: method is carried out by hydrogenation of 2-ethylhexene-2-al-1 with the help of hydrogen-containing gas. The process takes place at 80-130 C and at pressure 0.1-5 MPa in the presence of Pd/AlOand alkyl butyrate. 2-ethyl hexanal being isolated of thus prepared hydrogenation product is separated into gaseous and liquid phase. Mentioned above gaseous phase which comprises hydrogen and easily volatile materials is recycled and then is used together with hydrogen-containing gas for hydrogenation. Said liquid phase which comprises alkyl butyrates and 2-ethyl hexanal is then oxidized at 40-50 C with the help of oxygen or oxygen-containing gas. Thus obtained oxidate is rectified together with desired acid being run off the bottom part of the column and with alkyl butyrates being run off its top part. Thus prepared product is separated in two streams, the former being fed for oxidation, the latter for hydrogenation. Mass ratio of 2-ethyl hexanal and alkyl butyrate in mentioned above former stream is 1: (0.5-5.3). Mass ratio of 2-ethylhexen-2-al-1 and alkyl butyrate in mentioned above latter stream is 1:(0.5-5.3) respectively. EFFECT: increased yield of desired product, simplified technology of the process, decreased energy expense. 1 tbl 1 dwg
SU4819152/04A 1990-04-28 1990-04-28 Method for production of 2-ethylhexylic acid SU1697381A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU4819152/04A SU1697381A1 (en) 1990-04-28 1990-04-28 Method for production of 2-ethylhexylic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU4819152/04A SU1697381A1 (en) 1990-04-28 1990-04-28 Method for production of 2-ethylhexylic acid

Publications (1)

Publication Number Publication Date
SU1697381A1 true SU1697381A1 (en) 1997-02-27

Family

ID=60532153

Family Applications (1)

Application Number Title Priority Date Filing Date
SU4819152/04A SU1697381A1 (en) 1990-04-28 1990-04-28 Method for production of 2-ethylhexylic acid

Country Status (1)

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SU (1) SU1697381A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2626958C2 (en) * 2015-12-29 2017-08-02 Публичное акционерное общество "СИБУР Холдинг" Method for selective hydrogenation of unsaturated aldehydes
CN111620772A (en) * 2020-07-01 2020-09-04 山东理工大学 Production process for preparing isooctanoic acid by using isooctenal as raw material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2626958C2 (en) * 2015-12-29 2017-08-02 Публичное акционерное общество "СИБУР Холдинг" Method for selective hydrogenation of unsaturated aldehydes
CN111620772A (en) * 2020-07-01 2020-09-04 山东理工大学 Production process for preparing isooctanoic acid by using isooctenal as raw material
CN111620772B (en) * 2020-07-01 2023-04-18 山东理工大学 Production process for preparing isooctanoic acid by using isooctene aldehyde as raw material

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