http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111138240-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02C20-30 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-386 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C21-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-386 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-40 |
| filingDate | 2019-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111138240-B |
| titleOfInvention | A water removal device and water removal method for hexafluorobutadiene |
| abstract | The invention discloses a water removal device and method for hexafluorobutadiene, belonging to the fields of fine chemical industry and environmental protection. The device includes: extractive distillation tower and recovery tower. The method comprises the following steps: step 1, feeding the hexafluorobutadiene to be dewatered from the first inlet at the lower part of the extractive distillation tower; step 2, feeding the extractant from the second inlet at the middle part of the extractive distillation tower Material; Step 3, the hexafluorobutadiene after the extractive distillation escapes and collects from the first outlet of the extractive distillation tower top; Step 4, water and extractant enter the recovery tower as heavy components, and after the recovery tower is separated, The extractant is recycled. The device and method of the present invention are simple, can realize extraction type water removal of hexafluorobutadiene under relatively low temperature and pressure conditions, have good practicability and process safety, and the prepared hexafluorobutadiene has high purity . |
| priorityDate | 2019-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.