| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f1bfcdb828d5f506ab391ab28ea2d604 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-783
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-82 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-58 |
| filingDate |
1988-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1990-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_530f3f793dde2e240393ae5e709742dc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e72fb1b50d1946ffe671e3afa6aada4 |
| publicationDate |
1990-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4898990-A |
| titleOfInvention |
Process for the extraction of vanillin |
| abstract |
A process for the extraction of vanillin by means of the extraction from a vanillin-containing, water-containing, liquid mixture of substances with carbon dioxide at a temperature of 0 DEG to 110 DEG C. as well as a pressure of 30 to 400 bar and a subsequent separation of vanillin is described. It is contemplated that with this process the vanillin-containing carbon dioxide is passed through an aqueous hydrogen sulfite- or sulfite-solution at the extraction temperature and the extraction pressure, that this solution is subsequently acidified with sulfuric acid to a pH value of 2 to 4, and that the vanillin-free carbon dioxide is fed back into the extraction stage. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006088627-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101386571-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005074520-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005074519-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005074521-A1 |
| priorityDate |
1985-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |