| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e3b3f4f8df8306f743faf2d4a4af65e1 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2500-05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2500-18 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-001 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00 |
| filingDate |
2015-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2018-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1e4f041eee1ef5730e04c996ea5956c1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4f057023b8a7b08c4f2addfe68934f90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_717624acd0afc80ffc2ef64fc1a4dee8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9b2d171d430b4f65823d0e04c3ce277a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7a9f422a45d2a0acf9cd89fef5d0b312 |
| publicationDate |
2018-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
RU-2672469-C2 |
| titleOfInvention |
Multi-reactor slurry polymerisation processes with high ethylene purity |
| abstract |
FIELD: chemistry. n SUBSTANCE: invention relates to a slurry polymerisation process for producing polyethylene in a reactor cascade of two or more ethylene polymerisation reactors. Method includes feeding to the polymerisation reactor amounts of ethylene, Ziegler catalyst, a primary aluminium alkyl and a diluent. Slurry product is collected from the polymerisation reactor and fed to a second reactor. Additional amounts of ethylene and diluent are fed to two or more polymerisation reactors from the reactor cascade. Before feeding ethylene to the reactor cascade, it is first passed through an ethylene purification plant, which reduces at least the concentration of carbon monoxide, carbon dioxide, oxygen, acetylene and water contained in ethylene. n EFFECT: technical result is minimising the harmful effects of catalytic poisons in the reactor and ensuring stable polymerisation conditions when producing multimodal polyethylene. n 15 cl, 1 dwg |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2754179-C1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2787996-C1 |
| priorityDate |
2014-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |