FIELD: chemistry.
SUBSTANCE: invention relates to a method of ethylene polymerization. Method comprises: polymerising monomers in a reactor comprising baffle walls, first suspension feed pipeline to return cooled suspension from cooler, and optionally second suspension feed pipeline to transfer reactor suspension from previous reactor from cascade of polymerisation reactors. Upper part of the baffle plate, the first unloading end of the supply pipeline and the second pipeline of suspension supply are located below the level of liquid medium in the reactor.
EFFECT: technical result consists in creating a method for suspension polymerisation of ethylene with high output of the pump for feeding catalyst suspension due to its smaller clogging.
15 cl, 4 dwg, 1 ex
Title | Year | Author | Number |
---|---|---|---|
MULTI-REACTOR SLURRY POLYMERISATION PROCESSES WITH HIGH ETHYLENE PURITY | 2015 |
|
RU2672469C2 |
PROCESS FOR CONTROLLING ETHYLENE POLYMERIZATION PROCESS | 2015 |
|
RU2679899C2 |
METHODS FOR CONTROLLING ALUMINIUM ALKYL FEED TO SLURRY POLYMERISATION PROCESS | 2015 |
|
RU2684272C2 |
COMPRESSIBLE LIQUID DILUENT FOR POLYMERISATION OF POLYOLEFINS | 2011 |
|
RU2588142C2 |
METHOD OF ETHYLENE POLYMERIZATION WITH AN IMPROVED ETHYLENE SUPPLY SYSTEM | 2015 |
|
RU2658836C1 |
ETHYLENE POLYMERIZATION PROCESS HAVING IMPROVED HEAT EXCHANGER EFFICIENCY | 2015 |
|
RU2678444C2 |
METHOD OF POLYMERIZATION IN THE PRESENCE OF AN ADDITIVE, REDUCING STATISTICAL CHARGES | 2016 |
|
RU2653535C1 |
POLYETHYLENE PRODUCTION IN THE MULTIREACTIVE POLYMERIZATION SYSTEM | 2013 |
|
RU2655159C2 |
METHOD OF POLYMERISING OLEFINS | 2008 |
|
RU2466144C2 |
POLYETHYLENE PRODUCTION IN THE MULTI-OPERATIONAL SYSTEM OF POLYMERIZATION | 2013 |
|
RU2644473C2 |
Authors
Dates
2019-04-22—Published
2015-05-13—Filed