| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ab1b5d044be30bcefc81d6df08d7968f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2208-00716 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C323-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-35
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C319-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-81
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-783 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-81
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-51
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C319-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-35 |
| filingDate |
2001-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1d4362aaed599e06be575e365aa0daa8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74cacaa9e7e27f2aa546d4274661b02d |
| publicationDate |
2002-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2002173677-A1 |
| titleOfInvention |
Process for the preparation of 3-(methylthio) propanal |
| abstract |
A process for the continuous preparation of 3-(methylthio)propanal. A liquid reaction medium is contacted with a gaseous acrolein feed stream in a gas/liquid contact zone. The reaction medium contains 3-(methylthio)propanal, methyl mercaptan and a catalyst for the reaction between methyl mercaptan and acrolein. The gaseous acrolein feed stream comprises acrolein vapor and non-condensable gas. Acrolein is transferred from the acrolein feed stream to the reaction medium and reacts with methyl mercaptan in that medium to produce a liquid reaction product containing 3-(methylthio)propanal. The non-condensable gas is separated from the liquid reaction product. The reaction product is divided into a product fraction and a circulating fraction, and the circulating fraction is recycled to the gas/liquid contact zone. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8877981-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8334412-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010176342-A1 |
| priorityDate |
1993-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |