| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-141
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C5-22 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C5-22 |
| filingDate |
2003-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_df941a80a03c23c164670395bf59dff6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d85dd255574a7f8682d4332f0452fdea
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f28653642a08f09e724c23f6341b92df
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_de20af49aafb22dc37cb291fb8084ec1 |
| publicationDate |
2005-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1527036-A1 |
| titleOfInvention |
Continuous method for separating a c sb 4 /sb cut |
| abstract |
In a continuous process for fractionating a C4 fraction (C4) by extractive distillation using a selective solvent (LM) in an extractive distillation column (EDK), it is proposed that a dividing wall (TW) is installed in the longitudinal direction in the extractive distillation column (EDK) to form a first region (A), a second region (B) and a lower combined column region (C) and a top stream (C4H10) comprising the butanes is taken off from the first region (A), a top stream (C4H8) comprising the butenes is taken off from the second region (B) and a stream (C4H6) comprising the hydrocarbons from the C4 fraction which are more soluble in the selective solvent (LM) than are the butanes and the butenes is taken off from the lower combined column region (C). |
| priorityDate |
2002-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |