FIELD: chemistry.
SUBSTANCE: invention relates to a system for polymerization catalyst supply and a continuous method for the polymerization catalyst delivery to a polymerization reactor. A catalyst recharge system is described, containing: a catalyst flow; a diluent flow; as well as a pre-contacting device containing two mixing stages arranged in series, wherein each of two mixing stages has a configuration of a continuous mixing case reactor, while the first stage of two mixing stages receives content including a catalyst obtained from the catalyst flow and a diluent obtained from the diluent flow, and the pre-contacting device is designed so that 70-100% of the content passes through two mixing stages during one duration of stay in the device, ranging from about 5 minutes to about 30 minutes.
EFFECT: creation of a technology and a preparation and supply system that exclude or reduce the traditionally used mixing and dilution of the catalyst upstream from the polymerization reactor or the pre-contacting device, thereby eliminating or reducing the need for traditionally used loading tanks, mixing tanks and working tanks; provide a more permanent contact of catalyst components in the pre-contact device upstream from the polymerization reactor; or fulfill both of these requirements.
25 cl, 4 dwg
Title |
Year |
Author |
Number |
METHODS OF MONITORING SOLID COMPONENT OF POLYMERIZATION CATALYST SYSTEM IN REACTOR FEED STREAM USING TURBIDIMETER |
2016 |
- Schwerdtfeger Eric D
- Hert Daniel G
- Mcdaniel Max P
|
RU2714878C2 |
METHODS FOR DETERMINING ACTIVITY OF ACTIVATED CHEMICALLY TREATED SOLID OXIDE DURING POLYMERISATION OF OLEFINS |
2022 |
- Yang, Qing
- Mcdaniel, Max P.
- Buck, Richard M.
- Crain, Tony R.
- Rose, Ryan N.
|
RU2830511C1 |
METHOD OF GAS-PHASE POLYMERISATION OF OLEFINS |
2005 |
- Mej Gabriehle
- Kovetstsi Massimo
- Bertolini Stefano
|
RU2374265C2 |
METHOD OF CONTROLLING POLYMER FINE-DISPERSIVE PARTICLES IN GAS-PHASE POLYMERISATION |
2004 |
- Apkhehm Stefani M.
- Terner Majkl D.
- Kinnehn Majkl A.
- Jergensen Robert Dzh.
|
RU2345093C2 |
METHODS FOR DETERMINING CONCENTRATIONS OF TRANSITION METAL COMPOUNDS IN MULTICOMPONENT LIQUID SYSTEMS |
2018 |
- Yang, Qing
- Buck, Richard, M.
|
RU2775371C1 |
METHOD OF DETERMINING CONCENTRATION OF A TRANSITION METAL COMPOUND IN A MULTICOMPONENT LIQUID SYSTEM |
2019 |
- Buck, Richard, M.
- Yang, Qing
|
RU2768933C1 |
LATENT MATALLOCENE CATALYTIC SYSTEMS FOR POLYMERIZATION |
2002 |
- Khehll Richard A.
- Striki Dzherom A.
- Urkhammer Rodzher
|
RU2307838C2 |
TEMPERATURE CONTROL DURING POLYMERISATION OF POLYOLEFIN PARTICLES |
2016 |
- Hottovy, John D.
- Hendrickson, Gregory G.
|
RU2708889C2 |
METHOD OF SUPPLYING CATALYST INTO POLYMERISATION REACTOR |
2009 |
- Baita P'Etro
- Karer Rajner
- Majer Gerkhardus
- Funk Gvido
- Mej Gabriele
|
RU2515857C2 |
LATENT METALLOCENE CATALYTIC SYSTEMS FOR OLEPHINE POLYMERISATION |
2002 |
|
RU2330862C2 |