| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2208-00628
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2208-00752 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J4-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-0015
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J4-008
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J4-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J4-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-02 |
| filingDate |
2018-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2022-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-110650791-B |
| titleOfInvention |
Polymerization catalyst delivery |
| abstract |
The present disclosure describes a process for introducing a catalyst into a polymerization zone by: detecting one or a combination of the following: (i) a change in catalyst concentration in a catalyst feed stream upstream of the polymerization zone, (ii) a change in monomer concentration in the polymerization zone, and (iii) a change in polymer production rate from the polymerization zone; adjusting a first catalyst flow rate of the catalyst in the catalyst feed stream to a second catalyst flow rate based on one or a combination of (i), (ii), and (iii); and introducing the catalyst into the polymerization zone downstream of the location where the conditioning step is performed in the catalyst feed stream. A catalyst injection system for carrying out such a process is also provided. |
| priorityDate |
2017-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |