http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2496765-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_574bc8fd24e08fc5a292d012c5a28e48 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25B1-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B32-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B7-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25B15-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25B1-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D3-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-461 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25B3-23 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25B1-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D3-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B32-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C68-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C68-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25B1-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25B1-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-96 |
| filingDate | 2008-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce3d378acad51155a942f1a3a146a3e5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_79dfb4dec37f2dae0b739be37623b39f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_39a9a2bf7a4bc52446e172d30df2f8b6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_67024164264f3ad7dc31cdcafb116de7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a10f2edc796264b2cff8263f2a02c29d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3c992ff043270da1bcd0373a0e9b816a |
| publicationDate | 2013-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2496765-C2 |
| titleOfInvention | Method of producing diaryl carbonate |
| abstract | FIELD: chemistry. n SUBSTANCE: invention relates to a method of producing diaryl carbonate coupled with electrolysis of the formed alkali metal chloride-containing spent aqueous solutions. The method of producing diaryl carbonate and treating at least a portion of the formed alkali metal chloride-containing solution comprises the following steps: a) reacting phosgene, obtained from reacting chlorine with carbon monoxide, with at least one monophenol in the presence of a base and, optionally, in the presence of a base catalyst to form diaryl carbonate and an alkali metal chloride-containing solution, b) separating and extracting the diaryl carbonate formed at step (a), c) separating the alkali metal chloride-containing solution remaining after step (b) from solvent residue and, optionally, catalyst residue with subsequent treatment with adsorbents, wherein before treatment with adsorbents, pH of the alkali metal chloride-containing solution is set equal to or lower than 8, d) electrochemical oxidation of at least a portion of the alkali metal chloride-containing solution from step (c), which takes place with formation of chlorine, an alkali metal hydroxide solution and in the corresponding case hydrogen, wherein at least a portion of the obtained chlorine is used to produce phosgene and/or e) returning at least a portion of the alkali metal hydroxide solution obtained at step (d) to step (a) for producing diaryl carbonate, where at least a portion of the alkali metal chloride-containing solution formed at step (c) is returned to step (a). n EFFECT: along with other advantages, the disclosed method improves recycling through electrolysis of the alkali metal chloride-containing solution formed when producing diaryl carbonate. n 12 cl, 4 ex |
| priorityDate | 2007-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 104.