| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_14883d976ed3d25c0ccea28d81e8037d |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2235-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2245-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2205-60
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/F25J2215-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2200-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2200-32 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04854
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04969
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04745
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04284
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04333
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-0409
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04412 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25J3-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25J3-04 |
| filingDate |
1999-08-04^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2001-04-11^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_194815e674294f12d3282b123bd0e7cd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7617a74e1076aae250e4128a116e5e62 |
| publicationDate |
2001-04-11^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
TW-429301-B |
| titleOfInvention |
Process and apparatus for the low-temperature fractionation of air |
| 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 N2O is removed, and is taken off from the purification stage (17) as purified purge fraction (18). |
| priorityDate |
1998-08-06^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |