http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-200902496-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70ec63d39d6704bacc5c7068c93ded43 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C31-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-065 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C68-06 |
| filingDate | 2008-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e216840ab594ac4adde5b9a938d450f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a19c339264c980c7cd1ccbecdfaa3b41 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d18ebe79a1dfb0ce780f21d888134427 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6cab6319105953e9f84380aad35d6f5e |
| publicationDate | 2009-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | TW-200902496-A |
| 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) reacting an alkylene carbonate and an alkanol feedstock into a first reaction zone under transesterification conditions to obtain a product mixture of dialkyl carbonate, unconverted alkanol, the alkanediol, unconverted alkylene carbonate and dimers of the alkanediol; (b) separating dialkyl carbonate and alkanol from the product mixture to obtain a bottom product stream containing alkanediol, unconverted alkylene carbonate and dimers of the alkanediol; (c) recovering the dialkyl carbonate; and (d) separating alkanediol from the bottom product stream to leave a recycle stream comprising unconverted alkylene carbonate and dimers of the alkanediol, which process further comprises (e) passing at least part of the recycle stream to a second reaction zone in which the dimers of the alkanediol are converted to higher-boiling oligomers of alkanediol, yielding an oligomers-containing effluent; (f) separating the higher-boiling oligomers from the oligomers-containing effluent yielding an alkylene carbonate-containing remaining stream; and (g) recycling the alkylene carbonate-containing remaining stream to the first reaction zone. |
| priorityDate | 2007-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.