| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_10636948adeff7a4f9c77a5c45be2245 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2235-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2215-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2200-94
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S62-925
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2205-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2200-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2245-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2200-32 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04333
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04412
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04969
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-0409
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04745
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04854
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04284 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25J3-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25J3-04 |
| filingDate |
1999-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2002-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e9dd0bd0b9f72874710100a7ab33259
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62c027efe2fdbad1bcef7091225a8648 |
| publicationDate |
2002-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6418753-B1 |
| titleOfInvention |
Method and device for cryogenic air separation |
| abstract |
The process and the apparatus serve for the low-temperature fractionation of air. Compressed and prepurified feed air ( 3, 5 ) is introduced into a rectification system for nitrogen-oxygen separation which has a pressure column ( 6 ). At least a part of the compressed and prepurified feed air is fed ( 5 ) to the pressure column ( 6 ). An oxygen-enriched fraction ( 13 ) is taken off from the pressure column ( 6 ) and passed ( 14 ) to a further working step ( 7 ) within the rectification system. The oxygen-enriched fraction ( 13 ) is taken off at least one theoretical or actual plate ( 15 ) above the point at which the compressed and prepurified feed air ( 5 ) is fed to the pressure column. From the bottom of the pressure column ( 6 ) a purge fraction ( 16 ) is removed in the. liquid state, fed in the liquid state to a purification stage ( 17 ), in which N 2 O is removed, and is taken off from the purification stage ( 17 ) as purified purge fraction ( 18 ). |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8443625-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2013133364-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6776004-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010037656-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023061621-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004007016-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9581386-B2 |
| priorityDate |
1998-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |