| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_33a62710796e131599043055d399597f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2500-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-14 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-69
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-22 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-69
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-02 |
| filingDate |
2013-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2017-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7885997d8c37c10e798e16008a16f73b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd77ab6b5f848a1153b82e291059ed46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9780ffab1318adc0b01feb4c43522fc3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42653c564fc1c18fbe908e256ce57d29
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_11109403bd0e2f6da79050bfe1caaa95
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_99d22f0abfe645beae596d57a62d10ea
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9c7d614fbeaeccadc6f302d803540c31
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ff21960bcc9fa8f489e5c0f07905f00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e631327976f2f0172cf01c936ff8bdb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c45eccd2d4fe2f936f6f520051e9f2d |
| publicationDate |
2017-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9725530-B2 |
| titleOfInvention |
Supported metal oxide double active center polyethylene catalyst, process for preparing the same and use thereof |
| abstract |
The present invention relates to a supported hybrid vanadium-chromium-based catalyst, characterized in the catalyst is supported on a porous inorganic carrier and a V active site and a inorganic Cr active site are present on the porous inorganic carrier at the same time. The present invention further relates to a process for producing a supported hybrid vanadium-chromium-based catalyst. The invention also provides the preparation method of the catalyst, titanium or fluorine compounds, vanadium salt and chromium salt according to the proportion, different methods of sequence and load on the inorganic carrier, after high temperature roasting, still can further add organic metal catalyst promoter prereduction activation treatment on it. The catalyst of the present invention can be used for producing ethylene homopolymers and ethylene/α-olefin copolymers. The hybrid vanadium-chromium-based catalyst can have high activity and produce polyethylene polymers having the properties of broad molecular weight distribution (Part of the products are bimodal distribution) and excellent α-olefin copolymerization characteristic. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11763853-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11270739-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11783867-B2 |
| priorityDate |
2012-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |