http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100195350-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fd160b48bd4cc483cafd142249836250 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2229-37 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2229-36 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G65-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G47-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-7007 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-7415 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G65-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G45-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G45-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G47-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G49-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G47-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-70 |
| filingDate | 1991-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1999-06-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9c6738c7e20d45659ae44aba4f5e3b51 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9a7905fa328ea14095ab03cee7d0e5d8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_efe6bf9dedfb64129a8357c8fa4185bf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c7ede326743601be5940952cae2a63ed |
| publicationDate | 1999-06-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-100195350-B1 |
| titleOfInvention | Manufacturing method of high viscosity index lubricant |
| abstract | The petroleum wax feed is converted to a high viscosity index lubricant by a two-step hydrocracking-isomerization process in which the petroleum wax feed is hydrolyzed at a mild stage in the early stages to convert up to about 30% by weight of the feed into a non-lube range product. Hydrolysis proceeds under hydrogen partial pressure of at least 1000 psig (7000 kpa) using an amorphous catalyst that preferentially separates the aromatics present in the initial feed. The hydrocracking effluent is hydrogen isomerized using a low acid zeolite β catalyst which first isomerizes the paraffinic components to low waxy high viscosity index isoparaffins in the second step.n n n The second stage may cascade the first stage product at a high pressure to the second stage or proceed at a relatively low pressure of 200-1000 psig. The catalyst of the second stage is preferably a noble metal-containing zeolite β catalyst containing boron skeletal elements that give a lower alpha value of 10 or less.n n n The second stage runs at relatively low temperatures of 600-650 ° F., but has a high selectivity for isomerization of paraffins even at 650 ° F. + conversion of 10-20% by weight. In the final dewaxing step, the desired pour point is achieved with a loss rate of less than 15% by weight. The final product is characterized by a viscosity index of at least 140, in particular in the range 143-147 and very good stability. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100483356-B1 |
| priorityDate | 1990-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.