GB1152104A - Hydrodimerisation Process - Google Patents

Hydrodimerisation Process

Info

Publication number
GB1152104A
GB1152104A GB37173/67A GB3717367A GB1152104A GB 1152104 A GB1152104 A GB 1152104A GB 37173/67 A GB37173/67 A GB 37173/67A GB 3717367 A GB3717367 A GB 3717367A GB 1152104 A GB1152104 A GB 1152104A
Authority
GB
United Kingdom
Prior art keywords
ammonia
reaction
acrylonitrile
aug
hydrodimerization
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
GB37173/67A
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.)
UCB SA
Original Assignee
UCB SA
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
Priority claimed from IL2634366A external-priority patent/IL26343A/en
Application filed by UCB SA filed Critical UCB SA
Publication of GB1152104A publication Critical patent/GB1152104A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00—Preparation of carboxylic acid nitriles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00—Preparation of carboxylic acid nitriles
    • C07C253/30—Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups

Landscapes

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

Abstract

1,152,104. Hydrodimerization process. UCB (UNION CHIMIQUE-CHEMISCHE BEDRIJVEN) S.A. 14 Aug., 1967 [16 Aug., 1966; 19 Dec., 1966], No. 37173/67. Heading C2C. Adipic acid derivatives are obtained by the hydrodimerization of acrylonitrile, C 1-4 alkyl acrylonitriles and C 1-4 alkyl acrylates using an alkali metal amalgam as reducing agent, wherein the reaction is carried out in a liquid medium comprising ammonia. The reaction is preferably effected at a temperature of - 40‹ C. to + 30‹ C. and the reaction medium may be aqueous ammonia in which the ammonia: water weight ratio is within the range of 15: 1 to 0À3: 1 and the amount of the acrylic acid derivative in the reaction mixture is within the range of from 2 to 30% by weight. The ammoniacal reaction medium may also be anhydrous and consist of liquid ammonia in which an ammonium or amine salt is dissolved. In specific examples, acrylonitrile, methacrylonitrile and ethyl acrylate are dimerized to give adiponitrile, dimethyl adiponitrile and diethyl adipate respectively; propionitrile, isobutyronitrile and ethyl propionate are obtained as by-products.
GB37173/67A 1966-08-16 1967-08-14 Hydrodimerisation Process Expired GB1152104A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL2634366A IL26343A (en) 1966-08-16 1966-08-16 Process for the hydrodimerization of acrylic acid derivatives
IL2708966 1966-12-19

Publications (1)

Publication Number Publication Date
GB1152104A true GB1152104A (en) 1969-05-14

Family

ID=26320427

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37173/67A Expired GB1152104A (en) 1966-08-16 1967-08-14 Hydrodimerisation Process

Country Status (12)

Country Link
US (1) US3519674A (en)
AT (1) AT272300B (en)
BE (1) BE702635A (en)
CH (1) CH468960A (en)
CS (1) CS149414B2 (en)
DE (1) DE1668767C3 (en)
ES (1) ES344061A1 (en)
GB (1) GB1152104A (en)
LU (1) LU54297A1 (en)
NL (1) NL6710958A (en)
NO (1) NO120521B (en)
SE (1) SE326699B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004065434A1 (en) * 2003-01-23 2004-08-05 Teijin Limited Polymer for carbon fiber precursor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3193574A (en) * 1960-05-08 1965-07-06 Katchalsky Aharon Process for the preparation of adiponitrile by dimerization of acrylonitrile
GB1157441A (en) * 1964-06-02 1969-07-09 Ici Ltd Reductive Dimerisation of Unsaturated Nitriles

Also Published As

Publication number Publication date
CS149414B2 (en) 1973-07-05
DE1668767B2 (en) 1974-05-30
DE1668767C3 (en) 1975-01-30
NL6710958A (en) 1968-02-19
ES344061A1 (en) 1968-11-01
NO120521B (en) 1970-11-02
SE326699B (en) 1970-08-03
CH468960A (en) 1969-02-28
AT272300B (en) 1969-07-10
BE702635A (en) 1968-02-14
LU54297A1 (en) 1968-03-25
US3519674A (en) 1970-07-07
DE1668767A1 (en) 1971-01-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees