Abstract: A method of making a catalyst for use in oligomerizing an olefin comprising a chromium-containing compound, a pyrrole-containing compound, a metal alkyl, a halide-containing compound, and optionally a solvent, the method comprising contacting a composition comprising the chromium-containing compound and a composition comprising the metal alkyl, wherein the composition comprising the chromium-containing compound is added to the composition comprising the metal alkyl.

Abstract: Methods for making ?-diimine metal complexes are described. The methods comprise forming an ?-diimine metal complex imine bond in the presence of a metal salt or an ?-acylimine metal complex. The method is particularly using for the production of ?-diimine metal complexes having two different ?-diimine nitrogen groups. The ?-diimine metal complexes are useful for polymerizing or oligomerizing olefins.

Abstract: Novel ?-diimine metal complexes, particularly iron complexes are disclosed. The ?-diimine metal complexes are produced by forming one of the ?-diimine metal complex imine bonds in the presence of a metal salt or an ?-acylimine metal complex. ?-diimine metal complexes having two different ?-diimine nitrogen groups may be produced. The ?-diimine metal complexes are useful for polymerizing or oligomerizing olefins.

Abstract: Novel ?-diimine metal complexes, particularly iron complexes, having a phenyl sulfidyl or substituted phenyl sulfidyl metal complexing group are disclosed. The ?-diimine metal complexes having a phenyl sulfidyl or substituted phenyl sulfidyl metal complexing group are produced by forming one of the ?-diimine metal complex imine bonds in the presence of a metal salt or an ?-acylimine metal complex. The ?-diimine metal complexes having phenyl sulfidyl or substituted phenyl sulfidyl metal complexing group are useful for polymerizing or oligomerizing olefins.

Abstract: A method of making an olefin oligomerization catalyst, comprising contacting a chromium-containing compound, a heteroatomic ligand, and a metal alkyl, wherein the chromium-containing compound comprises less than about 5 weight percent chromium oligomers. A method of making an olefin oligomerization catalyst comprising a chromium-containing compound, a nitrogen-containing compound, and a metal alkyl, the method comprising adding a composition comprising the chromium-containing compound to a composition comprising the metal alkyl. A method of making an olefin oligomerization catalyst comprising a chromium-containing compound, a nitrogen-containing compound, and a metal alkyl, the method comprising abating all or a portion of water, acidic protons, or both from a composition comprising the chromium-containing compound, a composition comprising the nitrogen-containing compound, or combinations thereof prior to or during the preparation of the catalyst.

Abstract: Novel ?-diimine metal complexes, particularly iron complexes are disclosed. The ?-diimine metal complexes are produced by forming one of the ?-diimine metal complex imine bonds in the presence of a metal salt or an ?-acylimine metal complex. ?-diimine metal complexes having two different ?-diimine nitrogen groups may be produced. The ?-diimine metal complexes are useful for polymerizing or oligomerizing olefins.

Abstract: Methods for making ?-diimine metal complexes are described. The methods comprise forming an ?-diimine metal complex imine bond in the presence of a metal salt or an ?-acylimine metal complex. The method is particularly using for the production of ?-diimine metal complexes having two different ?-diimine nitrogen groups. The ?-diimine metal complexes are useful for polymerizing or oligomerizing olefins.

Abstract: The present application discloses methods for producing a hexadentate bimetallic complex. A method may comprise contacting an acyliminepyridine compound, a metal salt, and an amine to form a mixture; and recovering the hexadentate bimetallic complex from the mixture. A method may also comprise forming at least one imine bond in the presence of a metal salt, metal complex, or combinations thereof. The metal salt may be iron, cobalt, nickel, chromium, vanadium or mixtures thereof. The acyliminepyridine compound may be a mono-acyliminepyridine in instances where the amine is a diamine. In such instances, the mono-acyliminepyridine compound to diamine molar ratio may be in the range of about 2:1; and the mono-acyliminepyridine compound to metal salt molar ratio may be in the range of about 1:1. Methods for preparing an acyliminepyridine compound for use in preparation of a hexadentate bimetallic complex are also disclosed.

Abstract: Novel metal complexes, particularly chromium complexes, which contain at least one tridentate ligand are disclosed and prepared. Olefins, particularly ethylene, can be reacted to form butene and/or other homo- or co-oligomers and/or polymers with high ?-olefin concentrations by contacting a metal catalyst which contains a transition metal, particularly chromium, complexes having per metal atom at least one tridentate ligand with N, O, or N and O coordinating sites.

Abstract: Provided is a method of oligomerizing alpha olefins. In an embodiment, an oligomerization catalyst system is contacted in at least one continuous reactor with a feed comprising olefins; an effluent comprising product olefins having at least four carbon atoms is withdrawn from the reactor; the oligomerization catalyst system comprises iron or cobalt, or combinations thereof; and the single pass conversion of ethylene is at least about 40 weight percent among product olefins having at least four carbon atoms. In another embodiment, the single pass conversion of ethylene comprises at least about 65 weight percent among product olefins having at least four carbon atoms. In another embodiment, product olefins of the effluent having twelve carbon atoms comprise at least about 95 weight percent 1-dodecene. In another embodiment, product olefins comprise at least about 80 weight percent linear 1-alkenes.