FIELD: chemistry.
SUBSTANCE: invention relates to polymerisation of olefin monomers. Described is a method which includes circulation of a suspension containing an olefin monomer selected from C2-C12 olefin monomers, a liquid diluent selected from C3-C7 alkanes, a catalyst and polyolefin particles in polymerisation conditions in a loop reactor. Polymerisation conditions include a polymerisation temperature of 38–121 °C and a polymerisation pressure of 27–50 bar. In one embodiment, during circulation, the cavitation number is 6–60. In another embodiment, Euler number (Eu) is at least 5.
EFFECT: technical result is improved mode for polymerisation processes at lower cavitation numbers without significant increase in pressure in the reactor, which enables to minimize the increase in costs.
26 cl, 2 tbl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PROCESS FOR FORMING POLYOLEFINS | 2015 |
|
RU2681938C2 |
| ANGULAR AND HORIZONTAL CONSTRUCTIONS IN LOOP REACTOR | 2015 |
|
RU2681912C2 |
| COMPRESSIBLE LIQUID DILUENT FOR POLYMERISATION OF POLYOLEFINS | 2011 |
|
RU2588142C2 |
| TEMPERATURE CONTROL DURING POLYMERISATION OF POLYOLEFIN PARTICLES | 2016 |
|
RU2708889C2 |
| POLYETHYLENE PRODUCTION IN THE MULTI-OPERATIONAL SYSTEM OF POLYMERIZATION | 2013 |
|
RU2644473C2 |
| POLYETHYLENE PRODUCTION IN THE MULTIREACTIVE POLYMERIZATION SYSTEM | 2013 |
|
RU2655159C2 |
| MULTI-STEP METHOD FOR POLYMERISATION OF OLEFINS | 2008 |
|
RU2475501C2 |
| POLYOLEFINS PRODUCTION IN MULTI-REACTOR POLYMERIZATION SYSTEM | 2013 |
|
RU2644897C2 |
| TECHNOLOGY OF CONTINUOUS DISCHARGE AND PRESSURE REGULATION IN POLYMERISATION REACTORS | 2011 |
|
RU2536204C2 |
| SAMPLING SYSTEM OF LIQUID-SOLID MIXTURE FOR LOOP SUSPENSION REACTOR | 2016 |
|
RU2712952C2 |
