http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5742656-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d9cb217f83556ce2a418344c2d485415 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-36 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-36 |
| filingDate | 1980-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_149aed038b16ed62f0b327d9b7b07241 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1c5cc26737f311caf5998fe2f24e9f67 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fb13d20e19593d390197ed5a289caf1f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_880f44bbf456fd93ff346428611dd125 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6b14637ca354e426a046b989b3b41ac0 |
| publicationDate | 1982-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S5742656-A |
| titleOfInvention | Continuous preparation of oxalic acid diester |
| abstract | PURPOSE: To obtain the titled compound continuously useful as a raw material for synthesizing oxalic acid, etc., by subjecting the reaction product of CO and an ester of nitrous acid to separating process through condensation, reprocessing process of a noncondensing gas, distillation process of a condensate, and hydrolyzing process of by-product. n CONSTITUTION: A gas comprising CO, an ester of nitrous acid, etc. is sent through the pipe 21 to the reactor 1 filled with a catalyst and reacted. The reaction product gas is sent to the condenser 2 and cooled, the condensate is sent through the pipe 14 to the distillation column 4. A noncondensing gas is sent through the pipe 12 to the reprocessing column 3, and the gas is brought into contact with a molecular oxygen- containing gas and an alcohol so that NO in the gas is processed to reproduce the ester of nitrous acid, which is sent through the pipes 19 and 21 to the reaction process. A carbonic acid diester, etc. is distilled by the distillation column 4, and an oxalic acid diester is taken out from the pipe 22. The distillate is sent through the pipes 23W25 to the hydrolyzing column 5 and hydrolyzed to give an alcohol, which is sent through the pipes 26, 28, and 18 to the reprocessing column 3. n COPYRIGHT: (C)1982,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2022535230-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2014129283-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5834615-A |
| priorityDate | 1980-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.