| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a2a99738c564d0d4da77d442ec8f7500 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S208-95 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G65-043
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G45-58 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G71-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G35-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G65-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G65-00 |
| filingDate |
2005-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2009-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bed370be3e69beced5d68daab3a36325
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_784f8f6365a9f07bb3181cbc919e7b69
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74cf9c5d83ed1957d8f21130245e213e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d2f381b9cca391b0e98a6e58fb9169b5 |
| publicationDate |
2009-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-7578926-B2 |
| titleOfInvention |
Process to enhance oxidation stability of base oils by analysis of olefins using Â1H NMR |
| abstract |
A process for producing a lubricating base oil having high oxidation stability, wherein the feed used to prepare the lubricating base oil contains at least 5 wt. % olefins, said process comprising (a) determining the weight percent of olefins present in the feed by means of 1 H NMR; (b) hydroprocessing the feed under hydroprocessing conditions selected to reduce the amount of olefins present to a target value which has been pre-determined by means of 1 H NMR to produce a lubricating base oil having the desired oxidation stability; and (c) collecting a lubricating base oil having the selected oxidation stability from the hydroprocessing zone. |
| priorityDate |
2005-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |