FIELD: chemical engineering.
SUBSTANCE: gas-phase polymerization of α-olefins is carried out at 20 to 130оС and pressure between 1 and 100 bar in tubular reactor with length-to-diameter ratio >100. Growing polymer particles pass through tubular reactor in its lengthwise direction without recycle of appreciable part of polymer particle current.
EFFECT: enabled production of high-homogeneity bimodal and polymodal polymers.
14 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PRELIMINARY CATALYST ACTIVATION | 2001 |
|
RU2275381C2 |
| METHOD AND DEVICE FOR GAS-PHASE POLYMERIZATION OF ALPHA- OLEFINS | 1996 |
|
RU2167164C2 |
| METHOD OF PRODUCING OLEFIN POLYMERS AND COPOLYMERS | 1992 |
|
RU2114125C1 |
| GAS-PHASE METHOD OF PRODUCING HETEROPHASE PROPYLENE COPOLYMERS | 2007 |
|
RU2444547C2 |
| MULTI-STEP METHOD FOR POLYMERISATION OF OLEFINS | 2008 |
|
RU2475501C2 |
| METHOD OF SUPPLYING CATALYST INTO POLYMERISATION REACTOR | 2009 |
|
RU2515857C2 |
| METHOD FOR GAS-PHASE POLYMERISATION OF OLEFINS | 2006 |
|
RU2412207C2 |
| METHOD OF GAS-PHASE POLYMERIZATION OF OLEFINS AND APPARATUS FOR ITS EMBODIMENT (VERSIONS) | 1993 |
|
RU2126015C1 |
| GASEOUS PROCESS AND OLEFIN POLYMERISATION PLANT | 2006 |
|
RU2427418C2 |
| METHOD OF GAS-PHASE POLYMERISATION OF OLEFINS | 2005 |
|
RU2374265C2 |
