JPS55124735A - Purification of malic acid - Google Patents
Purification of malic acidInfo
- Publication number
- JPS55124735A JPS55124735A JP3360179A JP3360179A JPS55124735A JP S55124735 A JPS55124735 A JP S55124735A JP 3360179 A JP3360179 A JP 3360179A JP 3360179 A JP3360179 A JP 3360179A JP S55124735 A JPS55124735 A JP S55124735A
- Authority
- JP
- Japan
- Prior art keywords
- malic acid
- aqueous solution
- resin
- maleic acid
- passed
- 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
Links
Abstract
PURPOSE: To obtain purified malic acid containing no or a remarkably reduced amount of maleic acid, and useful as a food additive, by treating an aqueous solution of crude malic acid containing maleic acid with a strong basic cation exchange resin at an elevated temperature.
CONSTITUTION: An aqueous solution of malic acid containing maleic acid is passed through a strong basic cation exchange resin bed at ≥35°C, esp. ≥40°C, to purify malic acid. The above ion exchange resin is preferably the II-type resin, since it can be easily regenerated with an alkali. When the concentration of maleic acid in the aqueous solution of malic acid flowed out of the resin bed exceeds the tolerance limit, the flow of the solution is stopped and the resin bed is regenerated. The regeneration of the pref caried out resin is as follows: the aqueous solution of malic acid is forced out of the resin bed with air, water is passed through the bed to desorb a part of adsorbed organic acids, and then an aqueous solution of an alkali is passed through. The temp. can be raised to 40W70°C when the I-type resin is used; and ≤55°C when the II-type is used.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3360179A JPS55124735A (en) | 1979-03-22 | 1979-03-22 | Purification of malic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3360179A JPS55124735A (en) | 1979-03-22 | 1979-03-22 | Purification of malic acid |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55124735A true JPS55124735A (en) | 1980-09-26 |
JPS622572B2 JPS622572B2 (en) | 1987-01-20 |
Family
ID=12390995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3360179A Granted JPS55124735A (en) | 1979-03-22 | 1979-03-22 | Purification of malic acid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55124735A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6153791A (en) * | 1999-08-02 | 2000-11-28 | Archer-Daniels-Midland Company | Process for purifying 2-keto-L-gulonic acid |
-
1979
- 1979-03-22 JP JP3360179A patent/JPS55124735A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6153791A (en) * | 1999-08-02 | 2000-11-28 | Archer-Daniels-Midland Company | Process for purifying 2-keto-L-gulonic acid |
Also Published As
Publication number | Publication date |
---|---|
JPS622572B2 (en) | 1987-01-20 |
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