JPS5266684A - Purification and separation of 2-keto-l-glonic acid - Google Patents

Purification and separation of 2-keto-l-glonic acid

Info

Publication number
JPS5266684A
JPS5266684A JP14356075A JP14356075A JPS5266684A JP S5266684 A JPS5266684 A JP S5266684A JP 14356075 A JP14356075 A JP 14356075A JP 14356075 A JP14356075 A JP 14356075A JP S5266684 A JPS5266684 A JP S5266684A
Authority
JP
Japan
Prior art keywords
keto
purification
separation
glonic
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.)
Granted
Application number
JP14356075A
Other languages
Japanese (ja)
Other versions
JPS5734799B2 (en
Inventor
Kenji Igawa
Kanji Tokuyama
Masumi Kiyokawa
Mitsuru Kimoto
Shinichi Yamane
Ko Tabata
Takayasu Sonoyama
Hirohiko Honjo
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.)
Shionogi and Co Ltd
Original Assignee
Shionogi and Co Ltd
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 Shionogi and Co Ltd filed Critical Shionogi and Co Ltd
Priority to JP14356075A priority Critical patent/JPS5266684A/en
Publication of JPS5266684A publication Critical patent/JPS5266684A/en
Publication of JPS5734799B2 publication Critical patent/JPS5734799B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To prepare the title compound useful as the raw material of high purity L-ascorbic acid, by converging the Ca salt of the title compound obtianed by fermentation to Na salt, and separating and removing the impurities therefrom.
COPYRIGHT: (C)1977,JPO&Japio
JP14356075A 1975-12-01 1975-12-01 Purification and separation of 2-keto-l-glonic acid Granted JPS5266684A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14356075A JPS5266684A (en) 1975-12-01 1975-12-01 Purification and separation of 2-keto-l-glonic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14356075A JPS5266684A (en) 1975-12-01 1975-12-01 Purification and separation of 2-keto-l-glonic acid

Publications (2)

Publication Number Publication Date
JPS5266684A true JPS5266684A (en) 1977-06-02
JPS5734799B2 JPS5734799B2 (en) 1982-07-24

Family

ID=15341567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14356075A Granted JPS5266684A (en) 1975-12-01 1975-12-01 Purification and separation of 2-keto-l-glonic acid

Country Status (1)

Country Link
JP (1) JPS5266684A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0359042A2 (en) * 1988-09-13 1990-03-21 BASF Aktiengesellschaft Process for the isolation of 2-keto-polyhydroxy-C6-carboxylic acids, especially 2-keto-L-gulonic acid, from aqueous fermentation media
EP0805210A3 (en) * 1996-04-30 1999-07-14 F. Hoffmann-La Roche Ag Process for the isolation of 2-keto-L-gulonic acid
WO2003033448A1 (en) * 2001-10-10 2003-04-24 Basf Aktiengesellschaft Method for isolating salts of organic acids from a fermentation broth and for releasing the organic acid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0359042A2 (en) * 1988-09-13 1990-03-21 BASF Aktiengesellschaft Process for the isolation of 2-keto-polyhydroxy-C6-carboxylic acids, especially 2-keto-L-gulonic acid, from aqueous fermentation media
EP0805210A3 (en) * 1996-04-30 1999-07-14 F. Hoffmann-La Roche Ag Process for the isolation of 2-keto-L-gulonic acid
WO2003033448A1 (en) * 2001-10-10 2003-04-24 Basf Aktiengesellschaft Method for isolating salts of organic acids from a fermentation broth and for releasing the organic acid

Also Published As

Publication number Publication date
JPS5734799B2 (en) 1982-07-24

Similar Documents

Publication Publication Date Title
JPS5419931A (en) Separation of threo, erythro-3-(3,4-dibenzyloxyphenyl)serines
JPS5266684A (en) Purification and separation of 2-keto-l-glonic acid
JPS5219610A (en) Process for preparation of high purity butanediol
JPS52796A (en) Purification process of solution of sodium hypochlorite
JPS525733A (en) Process for separation and purification of cyclohexene
JPS5325508A (en) Production of glycols
JPS5214739A (en) Process for recovery of terephthalic acid
JPS5231094A (en) Preparation of cephalexin
JPS5210210A (en) Process for extraction of polyprehnyl compound
JPS5241972A (en) Solid-liquid separation by filtration
JPS5212987A (en) Manufacture of na glutamate
JPS5382718A (en) Purification of decance-1,10-dicarboxylic acid or its ester
JPS5236596A (en) Method for production of high purity cryolite
JPS5273839A (en) Purification of monochlorocyclohexane
JPS5242853A (en) Process for preparation of dihalovinylcyclopropanecaboxylic acid ester s
JPS5211193A (en) Production of crystalline gypsum fiber
JPS5359638A (en) Preparation of adrenalone
JPS5242496A (en) Production process of magnesium compounds of high purity
JPS5398987A (en) Novel process for preparation of 7-amino-3-substitued thiomethylcephemcarboxylic acids
JPS5283344A (en) Synthesis of 3-chloro-4-allyloxyphenyl-acetic acid
JPS5266685A (en) Purification and separarion of 2-keto-l-glonic acid
JPS53112868A (en) Production of thienylacetic acid derivative
JPS5218490A (en) Process for production of active carbon
JPS51136661A (en) Process for preparing 7-dehydrocholesterols.
JPS53135928A (en) Purification of 11-cyanoundecanoic acid