http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113956161-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_485aaa03ff36356873962a40da649f87 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C68-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-96 |
| filingDate | 2021-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_54452d4717992e34ac594ee977bf47a8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88ef4993338bd0c23cff061bcef8dcda http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_303abadab567d2202458927661118472 |
| publicationDate | 2022-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113956161-A |
| titleOfInvention | Method and system for continuously producing dimethyl carbonate |
| abstract | The invention discloses a method and a system for continuously producing dimethyl carbonate. The method comprises the following steps: adding NO and O 2 Feeding the mixed solution and methanol into a nitrosation reaction device, and carrying out nitrosation reaction under the conditions that the pressure is 0.1-1MPa and the temperature is room temperature to prepare methyl nitrite; mixing the methyl nitrite, CO and N 2 Inputting the mixture into a carbonylation reaction device provided with a carbonylation catalyst, and carrying out carbonylation reaction under the conditions that the pressure is 0.05-0.5MPa and the temperature is 120-; inputting the crude dimethyl oxalate product into a decarbonylation reaction device provided with a decarbonylation catalyst, and carrying out decarbonylation reaction under the conditions that the pressure is 0.05-0.5MPa and the temperature is 220-270 ℃ to prepare the dimethyl carbonate. The method provided by the invention has the advantages of recycling of NO and CO, high atom utilization rate, environmental friendliness, continuous production and suitability for large-scale industrial production. |
| priorityDate | 2021-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.