http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7326820-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fc50bd9afd8398f804906530628d080b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-171 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-17 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-148 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-17 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-171 |
| filingDate | 2004-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2008-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3841a6807677f59fada53b271a1e9a21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_71d325f82076e211a144fe98c7fcdbcb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_924628570631fa5a77d95fa997f473d1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_18644d4172c81f8105a37f77365ba65f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a8a745bb78200162d0723523a51f080 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8b4804dee9ea6933646876d1dc033d56 |
| publicationDate | 2008-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-7326820-B2 |
| titleOfInvention | System and method for purifying heptane |
| abstract | Removing impurities from a heptane stream by contacting the heptane stream with an acidic catalyst, wherein the contacting reduces a concentration of one or more close boiling impurities, one or more olefins, or both. The impurities are isomerized via contact with the acidic catalyst into species that possess lower octane levels or that do not possess boiling points as near to the boiling point of n-heptane, which promotes separation of the impurities via distillation. Close boiling impurities may include such compounds as cis-1,2-dimethylcyclopentane and methylcyclohexane or may be compounds having boiling points at a standard pressure of 760 Torr in the range of about 96.5 to about 100.5 degrees Celsius including such compounds as cis-1,2-dimethylcyclopentane and methylcyclohexane. The concentration of cis-1,2-dimethylcyclopentane and methylcyclohexane may be reduced by at least about 25 and 10 percent by weight, respectively. The concentration of olefins, as measured by the Bromine Index, may be reduced by at least about 25 percent by weight. |
| priorityDate | 2003-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 64.