| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6c8d4dc7bd1a30d8fda907fceaeb4e69 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B7-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B7-0706 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B32-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B7-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B7-07
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C68-02 |
| filingDate |
2000-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2002-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c1dc4ef3c82f5d8311ba2b04e6e219b6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_76e10f47549353a6c594e6a4e7a3d2ab |
| publicationDate |
2002-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6348613-B2 |
| titleOfInvention |
Process for producing diaryl carbonate |
| abstract |
A process for producing diaryl carbonate of the present invention comprises steps of:(1) a diaryl carbonate production step of subjecting an aromatic monohydroxy compound and phosgene to condensation reaction at a temperature of 80 to 180° C. in the presence of an aromatic nitrogen-containing heterocyclic compound catalyst to obtain the diaryl carbonate;(2) a purification step of removing impurities from a hydrogen chloride gas by-produced upon the condensation reaction;(3) a chlorine recovery step of recovering chlorine usable for the production of phosgene from the purified hydrogen chloride gas; and(4) a phosgene production step of reacting the recovered chlorine with carbon monoxide to obtain phosgene usable in the diaryl carbonate production step. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006123842-A1
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015119981-A2
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9085827-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011147229-A1 |
| priorityDate |
1999-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |