FIELD: technological processes.
SUBSTANCE: method of producing dried polymer granules in an apparatus which has a dryer with a first chamber and a mechanical mixer, an apparatus further comprising a degassing hopper with a second chamber; method includes: feeding a stream of drying gas containing a first gas mixture for drying wet polymer granules into a first chamber; transfer of dried polymer granules to the second chamber; feeding second gas mixture for degassing dried polymer granules into second chamber, thereby converting second gas mixture to third gas mixture; feeding a portion of third gas mixture into first chamber; and a process for producing LDPE granules using said method.
EFFECT: disclosed is a method of producing dried polymer granules.
13 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DRIED POWDER PRODUCTION METHOD | 2017 |
|
RU2673556C1 |
| MULTI-STEP METHOD FOR POLYMERISATION OF OLEFINS | 2008 |
|
RU2475501C2 |
| COOLING OF THE REACTION MIXTURE PRODUCED BY THE METHOD OF POLYMERIZATION OF ETHYLENE-UNSATURATED MONOMERS UNDER HIGH PRESSURE | 2020 |
|
RU2793547C1 |
| METHOD OF PRETREATMENT, TREATMENT OR REUSE OF THERMOPLASTIC POLYMER MATERIAL | 2007 |
|
RU2412804C1 |
| CONTAINER FOR STORING AND(OR) MOVING AND(OR) DEGASSING POWDERED POLYMER | 2010 |
|
RU2545275C2 |
| METHOD AND DEVICE FOR SEPARATING GAS FROM SOLID MATTER AND THEIR USE FOR POLYMERISATION REACTIONS | 2008 |
|
RU2475297C2 |
| SEPARATION SYSTEM FOR THE RETURN OF HYDROCARBONS FROM THE PROCESS OF SYNTHESIS OF POLYETHYLENE POLYMERS | 2019 |
|
RU2796980C2 |
| METHOD FOR SEPARATING COMPONENTS OF REACTION MIXTURE OBTAINED BY POLYMERIZATION OF ETHYLENE-UNSATURATED MONOMERS UNDER HIGH PRESSURE | 2014 |
|
RU2636520C1 |
| STATIC DRYER | 2019 |
|
RU2799995C1 |
| METHOD OF PROCESSING POLYLACTIC ACID | 2007 |
|
RU2551496C2 |
