摘要:
The current invention relates to a process for producing poly-α-olefins (PAO), comprising reacting olefin monomers in the presence of a catalyst complex to form PA0 product. The reaction is performed in a reaction comprising a reactor vessel and a system for recycling and cooling part of reactor outlet stream. At least one reactor is a cone reactor with a first cross sectional area in an upper part of the vessel and the cross sectional area decreases downwards to a second cross sectional area, which is smaller than the first cross sectional area. The invention also relates to an apparatus for carrying out the process.
摘要:
The present invention relates to a novel process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 70 mol%. The present invention further relates to novel isobutene polymers.
摘要:
Disclosed a method for preparing polybutene by using a catalyst including normal propanol, wherein the polybutene has 40 to 70% of vinylidene content and 10% or more of tetra-substituted double bond content by using a complex catalyst including normal propanol as a cocatalyst and a main catalyst such as boron trifluoride. The method comprises: introducing, to a raw reaction material including 10 wt% or more of isobutene, a complex catalyst including normal propanol as a cocatalyst and boron trifluoride as a main catalyst; and polymerizing the raw reaction material at a reaction temperature of -33 to 33°C under a reaction pressure of 3 to 50 kg/cm 2 , wherein the vinylidene content is adjusted by adjusting the reaction temperature.