JPS54103821A - Method of recovering sorbic acid from its dilute solution - Google Patents

Method of recovering sorbic acid from its dilute solution

Info

Publication number
JPS54103821A
JPS54103821A JP470578A JP470578A JPS54103821A JP S54103821 A JPS54103821 A JP S54103821A JP 470578 A JP470578 A JP 470578A JP 470578 A JP470578 A JP 470578A JP S54103821 A JPS54103821 A JP S54103821A
Authority
JP
Japan
Prior art keywords
sorbic acid
adjusted
dilute solution
recovering
recrystallization
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
JP470578A
Other languages
Japanese (ja)
Other versions
JPS6113456B2 (en
Inventor
Junzo Ogawara
Tomoyuki Ohashi
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.)
Nippon Synthetic Chemical Industry Co Ltd
Original Assignee
Nippon Synthetic Chemical Industry 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 Nippon Synthetic Chemical Industry Co Ltd filed Critical Nippon Synthetic Chemical Industry Co Ltd
Priority to JP470578A priority Critical patent/JPS54103821A/en
Publication of JPS54103821A publication Critical patent/JPS54103821A/en
Publication of JPS6113456B2 publication Critical patent/JPS6113456B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: In the production of sorbic acid by the acidolysis of a polyester, a large quantity of recrystallization mother liquor, which has been wasted, is adjusted in pH to 5W7, concentrated by reverse osmosis, thereby recovering inexpensively high- quality sorbic acid in high yield.
CONSTITUTION: In the production of sorbic acid by the acidolysis of a polyester to form wet cakes of crude sorbic acid and the recrystallization of them in hot water, the recrystallization mother liquor containing 0.1W0.3% of sorbic acid is adjusted in pH to 5W7 with an adequate alkali and then concentrated by reverse osmosis using acetylcellulose or aromatic polyamide films to an extent of 1W2%. When the concentrate is adjusted in pH to 3W4, sorbic acid precipitates as crystalls.
COPYRIGHT: (C)1979,JPO&Japio
JP470578A 1978-01-17 1978-01-17 Method of recovering sorbic acid from its dilute solution Granted JPS54103821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP470578A JPS54103821A (en) 1978-01-17 1978-01-17 Method of recovering sorbic acid from its dilute solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP470578A JPS54103821A (en) 1978-01-17 1978-01-17 Method of recovering sorbic acid from its dilute solution

Publications (2)

Publication Number Publication Date
JPS54103821A true JPS54103821A (en) 1979-08-15
JPS6113456B2 JPS6113456B2 (en) 1986-04-14

Family

ID=11591286

Family Applications (1)

Application Number Title Priority Date Filing Date
JP470578A Granted JPS54103821A (en) 1978-01-17 1978-01-17 Method of recovering sorbic acid from its dilute solution

Country Status (1)

Country Link
JP (1) JPS54103821A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62246539A (en) * 1986-03-18 1987-10-27 Daicel Chem Ind Ltd Purification of sorbic acid
WO2000017144A1 (en) * 1998-09-24 2000-03-30 Daicel Chemical Industries, Ltd. Process for the preparation of sorbic acid
WO2000020367A1 (en) * 1998-10-05 2000-04-13 Daicel Chemical Industries, Ltd. Process for the preparation of sorbic acid

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62246539A (en) * 1986-03-18 1987-10-27 Daicel Chem Ind Ltd Purification of sorbic acid
WO2000017144A1 (en) * 1998-09-24 2000-03-30 Daicel Chemical Industries, Ltd. Process for the preparation of sorbic acid
WO2000020367A1 (en) * 1998-10-05 2000-04-13 Daicel Chemical Industries, Ltd. Process for the preparation of sorbic acid
US6462233B1 (en) 1998-10-05 2002-10-08 Daicel Chemical Industries, Ltd. Process for the preparation of sorbic acid

Also Published As

Publication number Publication date
JPS6113456B2 (en) 1986-04-14

Similar Documents

Publication Publication Date Title
JPS572656A (en) Decoloration and purification of stevia extract
ES8203323A1 (en) Method of recovering in active form the catalyst for the terephthalic acid synthesis
JPS54103821A (en) Method of recovering sorbic acid from its dilute solution
GB1135063A (en) Process for the purification of malic acid
EP0468592A3 (en) Process for the preparation of s(+)-6-methoxy-alpha-methyl-2-naphtalene-acetic acid
JPS56100736A (en) Purifying method of monochloroacetic acid
GB1223663A (en) Pyrazole compounds and process for preparing the same
GB1022818A (en) Melamine refining procedure
JPS5748949A (en) Preparation of ethylenediaminetetraacetic acid alkali metal salt
JPS55167267A (en) Purification of alpha-l-aspartyl-l-phenylalanine lower alkyl ester
US3350441A (en) Process of preparing cleve's acid
JPS537633A (en) Purification of terephthalic acid mother liquor
JPS5236622A (en) Process for preparation of bromoacetic acid
JPS5219622A (en) Process for preparation of tartaric acid salts
JPS54144314A (en) Recovery of lysine
JPS5519055A (en) Separation of micophenolic acid
JPS5748950A (en) Fractional separation of nitrilotriacetic acid sodium salt
JPS5626195A (en) Separation of alpha-isopropylmalic acid
JPS5242807A (en) Process for preparation of alkyleneglycol
JPS5657749A (en) Crystallization of phenylalanine
GB1381418A (en) Recovery of ammonium salts of organic acids
CA1173460A (en) Process for the manufacture of 3,3'-dichloro-4,4'- diamino-biphenyl-dihydrochloride
JPS5379816A (en) Urea treatment of aliphatic dicarbosylic acid-contg.
JPS54131595A (en) Manufacture of sodium hydroxide dihydrate
JPS54132625A (en) Preparation of gamma-type quinacridone