| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70ec63d39d6704bacc5c7068c93ded43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8d59d027289200c98bf119b38b9ab345
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d7eadbf172b7ec614b614a5616cbc184
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70db0a0d39f459a4f70fd4b613fdf2a5 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C68-06 |
| filingDate |
2007-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ad58a3c59225a0d9fa85e5999faea33
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b9661625811c39de7f91faf158cf062c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_41b97171cdbdf36b1d0ce1007dd0b932 |
| publicationDate |
2007-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2007096342-A1 |
| titleOfInvention |
Process for the preparation of an alkanediol and a dialkyl carbonate |
| abstract |
An alkanediol and a dialkyl carbonate are prepared in a process comprising: (a) contacting an alkylene carbonate with an alkanol feedstock under transesterification conditions in a reactive distillation zone to obtain a top stream comprising dialkyl carbonate and the alkanol and a bottom stream comprising the alkanediol; (b) separating the top stream comprising dialkyl carbonate and the alkanol into an alkanol-rich stream and a dialkyl carbonate-rich stream; (c) recovering the dialkyl carbonate, optionally after further purification, from the dialkyl carbonate-rich stream; and (d) recycling at least part of the alkanol-rich stream to the reactive distillation zone as part of the alkanol feedstock, wherein the alkanol-rich stream is split in at least two portions, and at least one portion is condensed and freed from compounds with a lower boiling point than the alkanol. The process is especially suitable for the production of propylene glycol and dimethyl carbonate from propylene carbonate and methanol. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011006410-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2272819-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8338631-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-I465429-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2534994-C2 |
| priorityDate |
2006-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |