GB1244448A - Process for improving the optical purity of optically impure lysine monohydrochloride - Google Patents

Process for improving the optical purity of optically impure lysine monohydrochloride

Info

Publication number
GB1244448A
GB1244448A GB4876969A GB4876969A GB1244448A GB 1244448 A GB1244448 A GB 1244448A GB 4876969 A GB4876969 A GB 4876969A GB 4876969 A GB4876969 A GB 4876969A GB 1244448 A GB1244448 A GB 1244448A
Authority
GB
United Kingdom
Prior art keywords
lysine
optical purity
improving
optically impure
lysine monohydrochloride
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
GB4876969A
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.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
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 Stamicarbon BV filed Critical Stamicarbon BV
Publication of GB1244448A publication Critical patent/GB1244448A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B11/00—Umbrellas characterised by their shape or attachment
    • A45B11/02—Umbrellas characterised by their shape or attachment attached to the body of the user

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,244,448. Lysine mono - hydrochloride. STAMICARBON N.V. 3 Oct., 1969 [11 Oct., 1968], No. 48769/69. Heading C2C. The optical purity of optically impure e lysine mono-hydrochloride is increased by crystallization of DL-lysine monohydrochloride from an aqueous solution of the optically impure lysine salt at a temperature of from 30-60‹ C., preferably from 35-55‹ C. The aqueous solution preferably contains an amount of water from 7% less to 7% more than that corresponding to the quantity required to form a saturated solution of the optically pure lysine salt at the crystallization temperature. Speci: fication 963,265 is referred to.
GB4876969A 1968-10-11 1969-10-03 Process for improving the optical purity of optically impure lysine monohydrochloride Expired GB1244448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6814539A NL6814539A (en) 1968-10-11 1968-10-11

Publications (1)

Publication Number Publication Date
GB1244448A true GB1244448A (en) 1971-09-02

Family

ID=19804903

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4876969A Expired GB1244448A (en) 1968-10-11 1969-10-03 Process for improving the optical purity of optically impure lysine monohydrochloride

Country Status (6)

Country Link
BE (1) BE739980A (en)
CH (1) CH515889A (en)
DE (1) DE1951231A1 (en)
FR (1) FR2020411A1 (en)
GB (1) GB1244448A (en)
NL (1) NL6814539A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0090866A1 (en) * 1982-04-02 1983-10-12 Showa Denko Kabushiki Kaisha Optical resolution process for DL-cysteine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0090866A1 (en) * 1982-04-02 1983-10-12 Showa Denko Kabushiki Kaisha Optical resolution process for DL-cysteine

Also Published As

Publication number Publication date
FR2020411A1 (en) 1970-07-10
DE1951231A1 (en) 1970-04-16
NL6814539A (en) 1970-04-14
CH515889A (en) 1971-11-30
BE739980A (en) 1970-04-08

Similar Documents

Publication Publication Date Title
GB1232554A (en)
CH423747A (en) Process for the continuous crystallization of adipic acid from its solutions
GB1244448A (en) Process for improving the optical purity of optically impure lysine monohydrochloride
BE580663A (en) Process for the preparation of concentrated aqueous solutions of polyacrylic acid amide.
GB1306331A (en)
GB1211589A (en) Enantiomer isolation process
ES420853A1 (en) Process for the stabilization of methionine
ES304963A1 (en) Melamine purification method. (Machine-translation by Google Translate, not legally binding)
SE7508553L (en) DIVISION OF 2-DEUTERO-3-FLUORO-DL-ALANINE SALTS
FR1441429A (en) Process for separating gamma-lactone from 3- (3-oxo-17beta-hydroxy-4, 6-androstadien-17alpha-yl) -propionic acid from its solutions
GB963265A (en) Process for purifying l(+)-lysine
GB1332090A (en) Optical resolution of salts of dl-2-pyrolidone-5-carboxylic acid
FR1456212A (en) Process for the production of l-glutamic acid by fermentation
GB1169311A (en) Process for Increasing the Optical Purity of Optically Active Lysine Monohydrochloride
GB1164488A (en) Process for Purifying L-Glutamic Acid Crystals
GB1315706A (en) Process for the production of sodium nitrilotriacetate monohydrate
BE602156A (en) Process for the production of citric acid by fermentation.
GB1461836A (en) Process for optical resolution of racemic lysine sulphanilate
GB1254411A (en) Purification of terephthalic acid
BE598076A (en) Process for the crystallization of optically active glutamic acid.
GB921075A (en) Process for optical resolution of racemic glutamic acid
GB1354382A (en) Crystalline 4,4, -bis-6-anilino-4-3-methoxypropyl-amino-1,3,5- triazin-2-yl-amino-stilbene-2,2,-disulphonic acid
GB1229133A (en)
BE580291A (en) Process for the preparation of dibenzazepine compounds.
GB1418870A (en) Resolution of dl-a-aminophenylacetic-acid