http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-643365-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9aa694d7d277529ddad12d81865f1b19 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K31-59 |
| filingDate | 1947-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1950-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-643365-A |
| titleOfInvention | Improvements in or relating to the concentration of the carotenoid content of a fatty oil |
| abstract | The carotenoiel content of a fatty oil is concentrated by contacting said oil with a low-boiling solvent for said oil, said solvent having a critical temperature not substantially higher than 450 DEG F., the temperature of contact being within the range at which the solubility of the oil in the solvent decreases with rising temperature and between about 100 DEG F. below the critical temperature of the solvent and not substantially above said critical temperature so as to form solvent and oil phases between which the oil is distributed, and the pressure being at least sufficient to maintain the solvent in the liquid condition at a temperature employed, and recovering from said oil phase the carotenoiel concentrate. Preferably the extraction step is carried out in a counter-current extraction zone which is refluxed by oil separated from the extract phase. As solvents there may be used low boiling paraffins or olefins, e.g. ethane, propane butane, pentane and hexane, and also ammonia, dichlordefluoromethane, dimethyl ether, methyl fluoride and other halogenated hydrocarbon. An example is given. |
| priorityDate | 1944-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.