| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d93502a23a72b56472bc75854cfe7c60 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S208-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-19
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S585-956 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G7-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G7-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-4244 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C11-167
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G7-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G7-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C11-08 |
| filingDate |
1999-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2002-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5171320d5b80ea2a46d2e5f88b221d03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1077450693e2fb67ca8309cbdd768427
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb669a70a662a91126ebb8c18283ed76 |
| publicationDate |
2002-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6413378-B1 |
| titleOfInvention |
Apparatus for separation and purification of saturated hydrocarbon and method for separation and purification |
| abstract |
An extractive distillation tower 4 supplied with a feedstock containing butadiene and a solvent and for distilling the feedstock to separate and purify the butadiene. The tower 4 includes sensors 32, 34 for detecting concentrations of specific impurities other than butadiene; a sensor for detecting a concentration of the butadiene; a sensor 30 for detecting a differential pressure between the top and bottom of the tower 4; a valve 48 for controlling the flow rate of part of fluid taken out from a bottom of the tower 4 and returned to the tower 4; a valve 23 for controlling a ratio of a solvent fed to the tower 4; a reflux ratio valve 28 for controlling the flow rate of part of remaining component of the feedstock taken out from a top of the tower 4 and refluxed; a heater 36 for controlling a bottom temperature of the tower 4; and a predictive control 60 for calculating forecasted values of the concentrations of the specific impurity and the butadiene after a time based on these sensors and controlling the system based on the forecasted values. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103830928-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11235260-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10968150-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010243424-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8076526-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11136281-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114768279-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114768279-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004200716-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2482161-C1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102847334-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011256156-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102847334-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004182691-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8608912-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003220530-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023061898-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9315732-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015134876-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007256920-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8821696-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008042208-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103830928-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003225306-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6849155-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7125474-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7128814-B2 |
| priorityDate |
1998-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |