GB892755A - Process for the manufacture of methionine - Google Patents

Process for the manufacture of methionine

Info

Publication number
GB892755A
GB892755A GB12588/60A GB1258860A GB892755A GB 892755 A GB892755 A GB 892755A GB 12588/60 A GB12588/60 A GB 12588/60A GB 1258860 A GB1258860 A GB 1258860A GB 892755 A GB892755 A GB 892755A
Authority
GB
United Kingdom
Prior art keywords
distillation column
reaction mixture
methionine
ammonia
hydrocyanic acid
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
GB12588/60A
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.)
Inventa AG fuer Forschung und Patentverwertung
Original Assignee
Inventa AG fuer Forschung und Patentverwertung
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 Inventa AG fuer Forschung und Patentverwertung filed Critical Inventa AG fuer Forschung und Patentverwertung
Publication of GB892755A publication Critical patent/GB892755A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/142—Amino acids; Derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/04—Processes using organic exchangers
    • B01J39/07—Processes using organic exchangers in the weakly acidic form

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Animal Husbandry (AREA)
  • Zoology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

In a process for preparing methionine, methylthiopropionic aldehyde is reacted with ammonia and hydrocyanic acid in a dilute alcoholic solution containing not more than 5% by weight of methylthiopropionic aldehyde, the reaction mixture is freed from excess ammonia and hydrocyanic acid by evaporation and concentrated in a distillation column (in which the escaping vapours of alcohol are drawn off by a pump, compressed and used for the indirect heating of the sump portion of the distillation column and, after having been liquefied, are partly pumped to the head of the distillation column) and after removal of the solvent from the solution of the reaction mixture collected in the sump of the column the reaction product is converted into methionine by hydrolysis. Specification 670,774 and U.S.A. Specifications 2,485,236, 2,520,312, 2,543,768, 2,557,013, 2,564,105, 2,732,400 and Swiss Specification 257,403 are referred to.ALSO:In a process for preparing methionine, methylthiopropionic aldehyde is reacted with ammonia and hydrocyanic acid in a dilute alcoholic solution containing not more than 5% by weight of methylthiopropionic aldehyde, the reaction mixture is freed from excess ammonia and hydrocyanic acid by evaporation, and concentrated in a distillation column (in which the escaping vapours of alcohol are drawn off by a pump, compressed and used for the indirect heating of the sump portion of the distillation column, and having been liquified, are partly pumped to the head of the distillation column) and after removal of the solvent from the solution of the reaction mixture collected in the sump of the column, the reaction mixture is converted into methionine by hydrolysis preferably by passing the nitrile over a strongly acidic ion-exchanger, and eluting with ammonia. Specification p 670,774, Swiss Specification 257,403 and U.S.A. Specifications 2,485,236, 2,520,312, 2,543,768, 2,557,013, 2,564,105 and 2,732,400 are referred to.
GB12588/60A 1959-05-05 1960-04-08 Process for the manufacture of methionine Expired GB892755A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH7292359A CH379524A (en) 1959-05-05 1959-05-05 Process for the production of methionine

Publications (1)

Publication Number Publication Date
GB892755A true GB892755A (en) 1962-03-28

Family

ID=4532207

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12588/60A Expired GB892755A (en) 1959-05-05 1960-04-08 Process for the manufacture of methionine

Country Status (4)

Country Link
BE (1) BE589132A (en)
CH (1) CH379524A (en)
ES (1) ES256898A1 (en)
GB (1) GB892755A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5716596A (en) 1992-06-23 1998-02-10 Diatide, Inc. Radioactively labeled somatostatin-derived peptides for imaging and therapeutic uses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5716596A (en) 1992-06-23 1998-02-10 Diatide, Inc. Radioactively labeled somatostatin-derived peptides for imaging and therapeutic uses

Also Published As

Publication number Publication date
ES256898A1 (en) 1960-07-01
BE589132A (en) 1960-07-18
CH379524A (en) 1964-07-15

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