http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2421887-T3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d155a7366c234993d31166b37a12351f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-69 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-69 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00 |
| filingDate | 2008-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_573a599e9ef2e13bd928dba3e8b8ec77 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a8389a72ac76b70fea30f2b0814a5d24 |
| publicationDate | 2013-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-2421887-T3 |
| titleOfInvention | Systems and methods for manufacturing polyolefins |
| abstract | A method for producing a polyolefin, the method comprising: determining an optimal operating temperature to produce a polyolefin in a fluidized reactor reactor system; select a chromium oxide based catalyst that has been reduced with diethyl aluminum ethoxide (DEAlE) based on the desired properties of the polyolefin achieved at the operating temperature; contacting a monomer with the chromium oxide based catalyst in the fluidized delegate reactor system; cooling a recycle stream of the fluidized bed reactor system in order to maintain the optimum operating temperature; and supplying oxygen to the fluidized bed reactor system to maintain in the milk fluid reactor system an effective amount of oxygen necessary to minimize fouling of the fluidized bed reactor system; wherein the catalyst is a chromium oxide on dehydrated silica, wherein oxygen is fed to the fluidized bed reactor system at a rate equivalent to from more than 0 to less than 0.05 parts per million oxygen relative to a rate volumetric of the monomer added to the fluidized bed reactor system, and wherein the optimum operating temperature is such that a maximum temperature in the fluidized reactor is less than about 20 ° C below the melting point of the polyolefin. |
| priorityDate | 2007-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.