GB1292512A - Purifying and compressing ketene - Google Patents

Purifying and compressing ketene

Info

Publication number
GB1292512A
GB1292512A GB1162670A GB1162670A GB1292512A GB 1292512 A GB1292512 A GB 1292512A GB 1162670 A GB1162670 A GB 1162670A GB 1162670 A GB1162670 A GB 1162670A GB 1292512 A GB1292512 A GB 1292512A
Authority
GB
United Kingdom
Prior art keywords
ketene
purification
decahydronaphthalene
compressing
purifying
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
GB1162670A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1292512A publication Critical patent/GB1292512A/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
    • C07C45/87—Preparation of ketenes or dimeric ketenes
    • C07C45/90—Separation; Purification; Stabilisation; Use of additives

Landscapes

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

Abstract

1292512 Ketene purification BADISCHE ANILIN- & SODA-FABRIK AG 11 March 1970 [12 March 1969] 11626/70 Heading C2C A process for purifying and compressing ketene which has been obtained by thermal cleavage of acetic acid in the presence of a catalyst under subatmospheric pressure followed by cooling, comprises compressing the ketene in a rotary compressor in which decahydronaphthalene is present to act as purification medium, and passing the purification mixture comprising ketene and decahydronaphthalene through a separating zone. The separated ketene may be subsequently cooled to -50‹ to 5‹ C. for further purification. Separated decahydronaphthalene may be recycled to the compressor. In comparative examples rotary pumps containing fuel oil, tetrahydronaphthalene and kerosene are used in a similar process.
GB1162670A 1969-03-12 1970-03-11 Purifying and compressing ketene Expired GB1292512A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691912407 DE1912407A1 (en) 1969-03-12 1969-03-12 Process for cleaning and compacting ketene

Publications (1)

Publication Number Publication Date
GB1292512A true GB1292512A (en) 1972-10-11

Family

ID=5727809

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1162670A Expired GB1292512A (en) 1969-03-12 1970-03-11 Purifying and compressing ketene

Country Status (7)

Country Link
JP (1) JPS4820529B1 (en)
BE (1) BE747189A (en)
CH (1) CH520089A (en)
DE (1) DE1912407A1 (en)
FR (1) FR2037874A5 (en)
GB (1) GB1292512A (en)
NL (1) NL7003334A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49148133U (en) * 1973-04-24 1974-12-20
JPS51116017U (en) * 1975-03-15 1976-09-20
JPS51116018U (en) * 1975-03-15 1976-09-20
JPS53120129U (en) * 1977-03-02 1978-09-25

Also Published As

Publication number Publication date
BE747189A (en) 1970-09-11
FR2037874A5 (en) 1970-12-31
NL7003334A (en) 1970-09-15
JPS4820529B1 (en) 1973-06-21
CH520089A (en) 1972-03-15
DE1912407A1 (en) 1970-09-24

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed