FIELD: polymerization processes. SUBSTANCE: invention provides method for continuous gas-phase fluidized-bed polymerization of olefin monomer(s), in which recycle gas stream escaping reactor is divided into two streams. The first stream cooled to gas-condensation temperature is returned into reactor, immediately into fluidized bed in a manner that, at any moment, condensed liquid continuously enters fluidized bed at minimum hourly intake 10 l per 1 cu.m fluidized bed material. The second stream, omitting above- indicated cooling/condensation stage, is passed through heat-exchanger and then returned into reactor. Continuous feeding of liquid into reactor allows reducing and even eliminating contamination problems possibly arising when known methods of gas-phase olefin polymerization processes are conducted. EFFECT: enhanced process efficiency. 9 cl, 3 dwg, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| POLYMERIZATION METHOD | 1994 |
|
RU2144042C1 |
| TWO-COMPONENT INJECTOR FOR LIQUID SPRAYING | 1995 |
|
RU2156663C2 |
| METHOD AND REACTION VESSEL FOR GAS-PHASE POLYMERIZATION OF ALPHA-OLEFINS | 1992 |
|
RU2050364C1 |
| METHOD FOR UNINTERRUPTED POLYMERIZATION OF $$$-OLEFIN | 1991 |
|
RU2100374C1 |
| METHOD OF SYNTHESIS OF VINYL ACETATE | 1997 |
|
RU2192409C2 |
| METHOD TO CONDUCT REACTIONS IN A PSEUDO-FLUIDIZED LAYER AND THE APPARATUS FOR ITS REALIZATION | 2001 |
|
RU2257374C2 |
| TRIMERIZATION AND OLIGOMERIZATION OF OLEFINS USING COMPRISING CHROMIUM, MOLYBDENUM, AND TUNGSTEN SOURCES AND LIGAND CONTAINING AT LEAST ONE PHOSPHORUS, ARSENIC, OR ANTIMONY ATOM BOUND TO AT LEAST ONE (HETERO)HYDROCARBON GROUP | 2001 |
|
RU2299096C2 |
| METHOD FOR PRODUCTION OF OLEFINS COPOLYMERS AND PLANT FOR ITS REALIZATION | 0 |
|
SU1838327A3 |
| METHOD OF OXIDATION IN REACTOR WITH PSEUDOLIQUEFIED LAYER | 2002 |
|
RU2339611C2 |
| METHOD FOR PREPARING OLEFINS | 1999 |
|
RU2209202C2 |
