http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2678121-T3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70ec63d39d6704bacc5c7068c93ded43 |
| 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/B01D3-009 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C68-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-96 |
| filingDate | 2010-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d18ebe79a1dfb0ce780f21d888134427 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e216840ab594ac4adde5b9a938d450f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6cab6319105953e9f84380aad35d6f5e |
| publicationDate | 2018-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-2678121-T3 |
| titleOfInvention | Process for preparing diaryl carbonates |
| abstract | The process for preparing a diaryl carbonate from a dialkyl carbonate and an aryl alcohol comprising: (a) introducing dialkyl carbonate and aryl alcohol into a first reactive distillation column; (b) recovering from the first reactive distillation column an upper stream comprising dialkyl carbonate and alkyl alcohol and a lower stream comprising alkylaryl carbonate, aryl alcohol and dialkyl carbonate; (c) introducing the bottom stream from the first reactive distillation column into a second reactive distillation column; (d) recovering from the second reactive distillation column an upper stream comprising dialkyl carbonate and a lower stream comprising alkylaryl carbonate, diaryl carbonate, and aryl alcohol; (e) introducing the bottom stream from the second reactive distillation column into a third reactive distillation column; and (f) recovering from the third reactive distillation column an upper stream comprising aryl alcohol and a lower stream comprising diaryl carbonate, wherein the upper stream from the third reactive distillation column is recycled to the second reactive distillation column. , wherein the first, second and third reactive distillation columns contain a catalyst, the bottom stream comprising diaryl carbonate from the third reactive distillation column further comprises catalyst, and said bottom stream is introduced into a fourth distillation column of the recovering an upper stream comprising diaryl carbonate and a lower stream comprising catalyst and diaryl carbonate, wherein the upper stream from the first reactive distillation column is introduced into a first distillation column from which a stream is recovered superior comprising alkyl alcohol and a stream The bottom line comprising dialkyl carbonate, and the bottom stream from the first distillation column is recycled to the first reactive distillation column. |
| priorityDate | 2009-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 76.