| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f1bfcdb828d5f506ab391ab28ea2d604
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_95608af2094159612e421feff46b194c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_869e036d5a708489068a2144155d7d5f |
| 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/C07C45-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 |
| filingDate |
1986-09-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_12a4a8820a255531b3f0b21ddef2874f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_520e27c53ba062a57a3ca7873cea33e3 |
| publicationDate |
1987-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-8701695-A3 |
| titleOfInvention |
Vanillin production process |
| abstract |
In a vanillin production process, a liquid mixture containing vanillin and water is extracted with carbon dioxide at a temperature from 0o to 110oC and a pressure from 30 to 400 bar, after which the vanillin is separated. The carbon dioxide-containing vanillin is led at the extraction temperature and pressure through an aqueous solution of sulphite or hydrogen sulphite, this solution is then acidified with sulphuric acid to a pH value between 2 and 4, and the vanillin-free carbon dioxide is returned to the extraction stage. |
| priorityDate |
1985-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |