FIELD: chemistry.
SUBSTANCE: invention relates to a method for polymerisation of ethylene, specifically to a method for polymerisation of ethylene in a circulating reactor. Polymerisation takes place at temperature ranging from 20 to 150°C, but below the melting point of the obtained polymer and pressure ranging from 5 to 100 bars. The polymer is present in suspension in liquid or supercritical suspension medium. The suspension is circulated by an axial pump. The circulation reactor has a diametre which varies by 10%. The reactor also has one widening and narrowing in an area which is not the area of the axial pump.
EFFECT: high reaction product output per unit time.
7 cl, 3 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| OLEFIN POLYMERISATION METHOD | 2010 |
|
RU2540974C2 |
| CIRCULATION REACTOR POLYMERISATION | 2007 |
|
RU2440842C2 |
| POLYMERISATION PROCESS | 2013 |
|
RU2653536C2 |
| METHOD FOR POLYMERISATION OF OLEFINS USING MULTI-LOOP REACTORS | 2008 |
|
RU2465284C2 |
| METHOD OF POLYMERISATION IN SUSPENSION PHASE | 2010 |
|
RU2544551C2 |
| METHOD OF POLYMERIZATION IN THE PRESENCE OF AN ADDITIVE, REDUCING STATISTICAL CHARGES | 2016 |
|
RU2653535C1 |
| MULTI-STEP ETHYLENE POLYMERISATION METHOD | 2010 |
|
RU2522439C2 |
| METHOD | 2013 |
|
RU2628516C2 |
| METHOD FOR PREPARING COMPOSITION OF LINEAR LOW DENSITY POLYETHYLENE | 2003 |
|
RU2285013C2 |
| GAS-PHASE POLYMERISATION OF ALPHA-OLEFIN | 2011 |
|
RU2490281C2 |
