| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d9cb217f83556ce2a418344c2d485415 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-36 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C203-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-36 |
| filingDate |
2013-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ae5225ea5da268fee6a8d2a55420a1bc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c777755d6d68085baa763580bba65e12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8db7725764fc70d48359b58826db9772
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_690f674d2eb7971559d9dd293d7281c1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f82483f6cf8baa9c17dcdec728456241 |
| publicationDate |
2014-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20140139594-A |
| titleOfInvention |
Method for producing nitrous acid ester, and method for producing dialkyl oxalate and dialkyl carbonate |
| abstract |
The present invention relates to a process for producing a nitrite ester which is produced by reacting nitrogen monoxide, oxygen and an alcohol to produce a nitrite ester, wherein a bottom liquid from the bottom of the reaction column and nitrogen monoxide and / or carbon monoxide are fed into a reactor, A step of feeding nitrite to the reaction column; a step of feeding a reaction liquid containing water, nitric acid and alcohol from the reactor to a nitric acid concentration column; Separating the low boiling point fraction from the reaction liquid by distillation and introducing the concentrated liquid into the reactor from the bottom of the concentrated nitric acid column while controlling the alcohol concentration in the concentrated liquid generated in the distillation column to less than 4.0 wt% |
| priorityDate |
2012-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |