http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0828725-A4
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f84747e8d08b1023763356d0e7d1db68 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P17-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P17-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-62 |
| filingDate | 1996-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6232b67b96d6403d87593bd46046e26d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f509c55846e207d9d449ba0bba1a282a |
| publicationDate | 1998-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0828725-A4 |
| titleOfInvention | PROCESS AND COMPOSITIONS FOR THE RECOVERY OF ASCORBIC ACID |
| abstract | The invention provides a process for the recovery of ascorbic acid from an aqueous feed solution containing the acid at a concentration of less than 0.7 mol/kg, comprising extracting the ascorbic acid with a water-immiscible organic extractant composition comprising: (a) at least one secondary or tertiary alkyl amine in which the aggregate number of carbon atoms is at least 20, as a primary extractant, and (b) a polar extraction enhancer compound; separating the ascorbic acid-containing organic extractant composition from residual aqueous solution, and subjecting the ascorbic-acid-containing organic extractant composition to a stripping operation with aqueous solution at a temperature of at least 20 DEG C higher than the temperature at which the extraction is carried out; whereby there is obtained an aqueous solution of ascorbic acid in which the concentration of ascorbic acid is higher than its concentration in the aqueous feed solution. |
| priorityDate | 1995-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 50.