| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-50 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-02 |
| filingDate |
2010-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c74629ea4323a3a9731f09cb2af3bbc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4a24dcffebacecabaa32a47df50d923f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b8599fdafffc3f1a74f60f9bbd327d35
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a910890f52ac88787d993587af75ef15
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c264a225e7618df89ca1261d626c114f |
| publicationDate |
2012-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-102428066-A |
| titleOfInvention |
Method for purifying carboxylic acids of halogen-containing compounds |
| abstract |
In the process for the purification of carboxylic acids comprising halogen compounds, the carboxylic acid is distilled in the presence of a heavy auxiliary base whose halide is liquid at the boiling temperature of the carboxylic acid. The auxiliary base combines with the hydrogen halide contained in the carboxylic acid and/or separated from the halogen compound under the action of heat, thereby reducing the vapor pressure of the hydrogen halide so that the hydrogen halide remains in the overhead product of the distillation plant and does not Transfer to distillate. The fact that the halide of the auxiliary base is liquid prevents the formation of solid deposits in the distillation apparatus. The carboxylic acid optionally also comprises at least one light component. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103304398-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103304398-A |
| priorityDate |
2009-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |