GB853266A - 1,3-butylene glycol - Google Patents

1,3-butylene glycol

Info

Publication number
GB853266A
GB853266A GB6024/57A GB602457A GB853266A GB 853266 A GB853266 A GB 853266A GB 6024/57 A GB6024/57 A GB 6024/57A GB 602457 A GB602457 A GB 602457A GB 853266 A GB853266 A GB 853266A
Authority
GB
United Kingdom
Prior art keywords
aldol condensation
acetaldehyde
mixture
acetaldol
carried out
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB6024/57A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Celanese Corp
Original Assignee
Celanese Corp
Celanese Corp of America
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.)
Filing date
Publication date
Application filed by Celanese Corp, Celanese Corp of America filed Critical Celanese Corp
Publication of GB853266A publication Critical patent/GB853266A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
    • C07C45/72—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

In a process for the production of 1.3-butylene glycol by subjecting acetaldehyde to aldol condensation and hydrogenating the acetaldol obtained, the aldol condensation is stopped before the percentage conversion of acetaldehyde exceeds 44% and unconverted acetaldehyde is steam distilled from the aldol condensation product after the alkaline substances present have been substantially neutralised. The aldol condensation is carried out in the usual way using alkaline catalysts such as sodium and potassium hydroxides and carbonates to maintain the pH of the mixture between 9 and 12. The aldol condensation may be satisfactorily carried out at a temperature of 0-50 DEG C. The condensation reaction is stopped by neutralising the mixture with an acid, e.g. phosphoric, acetic or sulphuric acid. The unconverted acetaldehyde is steam stripped from the mixture and the acetaldol is hydrogenated, e.g. by passing over a Raney metal catalyst at 25-65 DEG C. or higher.
GB6024/57A 1956-02-24 1957-02-22 1,3-butylene glycol Expired GB853266A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US853266XA 1956-02-24 1956-02-24

Publications (1)

Publication Number Publication Date
GB853266A true GB853266A (en) 1960-11-02

Family

ID=22190852

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6024/57A Expired GB853266A (en) 1956-02-24 1957-02-22 1,3-butylene glycol

Country Status (1)

Country Link
GB (1) GB853266A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0616992A1 (en) * 1993-03-24 1994-09-28 Daicel Chemical Industries, Ltd. Process for the preparation of 1,3-butylene glycol
US6900360B2 (en) 2000-02-04 2005-05-31 Daicel Chemical Industries, Ltd. High-purity 1,3-butylen glycol, process for producing 1,3-butylene glycol, and process for producing by-product butanol and butyl acetate
WO2005068408A1 (en) * 2004-01-08 2005-07-28 Celanese International Corporation Methods for preparing 1,3-butylene glycol
WO2019240009A1 (en) * 2018-06-12 2019-12-19 Jnc株式会社 Method for producing 1,3-butylene glycol

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0616992A1 (en) * 1993-03-24 1994-09-28 Daicel Chemical Industries, Ltd. Process for the preparation of 1,3-butylene glycol
EP0787709A1 (en) * 1993-03-24 1997-08-06 Daicel Chemical Industries, Ltd. An improved process for the preparation of 1,3-betylene glycol
EP0884297A1 (en) * 1993-03-24 1998-12-16 Daicel Chemical Industries, Ltd. An improved process for the preparation of 1,3-butylene glycol
US6900360B2 (en) 2000-02-04 2005-05-31 Daicel Chemical Industries, Ltd. High-purity 1,3-butylen glycol, process for producing 1,3-butylene glycol, and process for producing by-product butanol and butyl acetate
WO2005068408A1 (en) * 2004-01-08 2005-07-28 Celanese International Corporation Methods for preparing 1,3-butylene glycol
CN100450986C (en) * 2004-01-08 2009-01-14 奥克塞毕晓普有限责任公司 Methods for preparing 1,3-butylene glycol
WO2019240009A1 (en) * 2018-06-12 2019-12-19 Jnc株式会社 Method for producing 1,3-butylene glycol

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