The polymerized olefins include ethylene, α-olefins and functionalized olefins.
The olefins may be Fischer-Tropsch olefins.
Methods for separating di-olefins from mono-olefins, and olefins from non-olefins such as paraffins, oxygenates and aromatics, are provided.
The methods use metal salts which complex both mono-olefins and di-olefins, but which selectively complex di-olefins in the presence of mono-olefins.
A process for the isomerization of alpha olefins to internal olefins is disclosed.
The light olefins complete with heavier olefins for chain initiative, and fewer chains will be initiated at C20+.
Alternatively, both mono- and di-olefins can be adsorbed, and the mono-olefins selectively desorbed.
The alpha olefms may be oligomerized in the presence of an oligomerization catalyst to form poly(alpha olefins).
This invention relates to processes for converting oxygenates to olefins and olefins to polyolefins.
The olefins are then oligomerized under conditions that provide olefins in the jet fuel range.
The process produces linear alpha-olefins with low amounts of polymer, vinylidine and isomerized olefins.
The chloroolefins stabilized against an increase of the phosgene level via the addition of inhibitors to the chloroolefins.
The first gas stream includes olefins.
The invention concerns a process and a system for oligomerization of olefins.
Also, diolefins in combination with ethylene or α-olefins or 1,1-disubstituted olefins may be co-polymerized.
The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly α-olefms, or other unsaturated monomers.
Methods for producing alpha-olefins.
The catalyst compounds are useful, with or without activators, to polymerize olefins, particularly α-olefms, or other unsaturated monomers.
The selectivity of olefins is 30-90%.
The first gas stream may include olefins.
Preferably, the alpha olefin monomers are selected from the group consisting of C2O-C6O alpha olefin monomers.
Technology for conversion of light olefin to gasoline
Technology for conversion of light olefin to gasoline
Technology for conversion of light olefin to gasoline
The inventive compound can, in conjunction with an organometallic compound, form a novel catalyst system that can be advantageously used for polymerizing olefins.
The first gas stream may include olefins.
This invention contemplates the polymerization of olefins particularly alpha-olefins, particularly ethylene and propylene into homo, co and terpolymers.
Polymers of propylene or of other olefins, in primary forms
The C3-5 paraffinic feedstock is subjected to molecular redistribution via dehydrogenation to form olefins, metathesis of the olefins, and rehydrogenation of the olefins to form paraffins.
The catalyst system can be advantageously used for the polymerization of olefins.
Polymers of propylene or of other olefins, in primary forms
Polymers of propylene or of other olefins, in primary forms
Polymers of propylene or of other olefins, in primary forms
In accordance with the present invention, there are provided free-radical polymerizable compositions comprising polycyclic olefins, wherein the polycyclic olefins contain little, if any, cyclopentenyl unsaturation.
Also described is a process for polymerization of olefins in the presence of said catalyst.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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