GB993892A - Separation of isomers of glutamic acid and salts thereof - Google Patents

Separation of isomers of glutamic acid and salts thereof

Info

Publication number
GB993892A
GB993892A GB22054/62A GB2205462A GB993892A GB 993892 A GB993892 A GB 993892A GB 22054/62 A GB22054/62 A GB 22054/62A GB 2205462 A GB2205462 A GB 2205462A GB 993892 A GB993892 A GB 993892A
Authority
GB
United Kingdom
Prior art keywords
salts
glutamic acid
isomers
separation
supersaturated solution
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
GB22054/62A
Inventor
Victor Charles Ernest Burnop
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering Co
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 Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Priority to GB22054/62A priority Critical patent/GB993892A/en
Publication of GB993892A publication Critical patent/GB993892A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
    • C07C227/38—Separation; Purification; Stabilisation; Use of additives
    • C07C227/40—Separation; Purification
    • C07C227/42—Crystallisation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B57/00—Separation of optically-active compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
    • C07C227/30—Preparation of optical isomers
    • C07C227/34—Preparation of optical isomers by separation of optical isomers

Landscapes

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

Abstract

Optically active isomers of glutamic acid are separated from a supersaturated solution of the racemic acid or a salt thereof by seeding said supersaturated solution at an elevated temperature with seed crystals of the desired isomer having a particle size within the range of 0.1 to 20 m diameter. Salts are, for example, sodium, potassium, hydrobromide and hydrochloride. Crystallization is preferably stopped within the log period, viz. the period occurring before crystals of the opposite antipode also begin to form.
GB22054/62A 1962-06-07 1962-06-07 Separation of isomers of glutamic acid and salts thereof Expired GB993892A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB22054/62A GB993892A (en) 1962-06-07 1962-06-07 Separation of isomers of glutamic acid and salts thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22054/62A GB993892A (en) 1962-06-07 1962-06-07 Separation of isomers of glutamic acid and salts thereof

Publications (1)

Publication Number Publication Date
GB993892A true GB993892A (en) 1965-06-02

Family

ID=10173158

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22054/62A Expired GB993892A (en) 1962-06-07 1962-06-07 Separation of isomers of glutamic acid and salts thereof

Country Status (1)

Country Link
GB (1) GB993892A (en)

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