| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_664f5b543543aac4cf0153a4ef4e0f85 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2245-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2200-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2200-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04357
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04418
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04393
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04315
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04321 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25J3-04 |
| filingDate |
1998-08-27^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a8b3c31b60044c85aff55f9507655306 |
| publicationDate |
1999-10-26^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
BR-9803249-A |
| titleOfInvention |
Process and apparatus for producing nitrogen. |
| abstract |
'' PROCESS AND APPARATUS TO PRODUCE NITROGEN ''. A dual column cryogenic grinding system to produce high purity nitrogen at high pressure in which top vapor from a first column is processed in an intermediate heat sink of a second column and oxygen rich vapor from the second column is turboexpanded to generate cooling for separation. |
| priorityDate |
1997-08-29^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |