Method for the recovery of citric acid from a liquor containing the same
US5032686A · kind A · utility
11Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1989 |
| Grant date | Jul 16, 1991 |
| Priority date | — |
| Expiry date | Jun 5, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/47
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Method for the recovery of citric acid from a liquor containing the same, wherein successively, PA1 in a first step, the liquor containing the citric acid is put into contact with a cationic resin in the hydrogen form during a duration sufficient to reach an optimal adsorption of the citric acid, PA1 in a second step, the resin is treated by means of an elution agent and the fraction of eluate rich in purified citric acid is recovered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.