Abstract: The present disclosure relates to a process for producing ethylene oligomers and more particularly, to a process for oligomerizing ethylene by recycling butene, hexene, and octene in an ethylene oligomerization reaction with a catalyst system including a transition metal or transition metal precursor, a ligand with a backbone structure expressed by the following Chemical Formula 1, and a co-catalyst. [Chemical Formula 1] R1—O—Y—O—R2 or R1—OC(?O)—Y—C(?O)OR2 Herein, R1, R2 are each independently hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl, or substituted heterohydrocarbyl, and Y represents a group connecting O or C(?O)O and is hydrocarbyl, substituted hydrocarbyl, hetero hydrocarbyl, or substituted heterohydrocarbyl. According to the oligomerization method of the present disclosure, in the distribution of the produced ?-olefins, C10?-C12? ?-olefins care highly distributed, the produced ?-olefins have a remarkably high purity.

Abstract: The present disclosure relates to a catalyst system for ethylene oligomerization and a method for producing ethylene oligomerization using the same and more particularly, to a catalyst system for ethylene oligomerization including a transition metal or transition metal precursor with a new structure, a ligand with a backbone structure expressed by the following Chemical Formula 1 or Chemical Formula 2, and a co-catalyst for providing an ethylene oligomer and a method for producing ethylene oligomerization using the same. [Chemical Formula 1] R1—OC(?O)—Y1—C(?O)OR2 Herein, R1, R2 are each independently hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl, or substituted heterohydrocarbyl, and Y1 represents a group connecting CO(?O).

Abstract: The present disclosure relates to a process for producing ethylene oligomers and more particularly, to a process for oligomerizing ethylene by recycling butene, hexene, and octene in an ethylene oligomerization reaction with a catalyst system including a transition metal or transition metal precursor, a ligand with a backbone structure expressed by the following Chemical Formula 1, and a co-catalyst. [Chemical Formula 1] R1—O—Y—O—R2 or R1—OC(?O)—Y—C(?O)OR2 Herein, R1, R2 are each independently hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl, or substituted heterohydrocarbyl, and Y represents a group connecting O or C(?O)O and is hydrocarbyl, substituted hydrocarbyl, hetero hydrocarbyl, or substituted heterohydrocarbyl. According to the oligomerization method of the present disclosure, in the distribution of the produced ?-olefins, C10?-C12? ?-olefins care highly distributed, the produced ?-olefins have a remarkably high purity.

Abstract: The provided is an olefin (co)polymerization catalyst with an excellent catalyst activity, wherein the catalyst component is prepared by using a metallocene compound and titanocene compound or a half-titanocene compound so as to provide polyolefins having a high molecular weight and a low melt index, and also a method for olefin (co)polymerization using said catalyst.

Abstract: The provided is an olefin (co)polymerization catalyst with an excellent catalyst activity, wherein the catalyst component is prepared by using a metallocene compound and titanocene compound or a half-titanocene compound so as to provide polyolefins having a high molecular weight and a low melt index, and also a method for olefin (co)polymerization using said catalyst.

Abstract: The provided is an olefin (co)polymerization catalyst with an excellent catalyst activity, wherein the catalyst component is prepared by using a metallocene compound and titanocene compound or a half-titanocene compound so as to provide polyolefins having a high molecular weight and a low melt index, and also a method for olefin (co)polymerization using said catalyst.

Abstract: Provided is a preparation method of a catalyst for ethylene (co)polymerization, comprising the following steps: (1) preparing a magnesium compound solution by contact-reacting a halogenated magnesium compound with a mixed solvent of cyclic ether and at least one alcohol; (2) reacting the resulted magnesium compound solution from the above step (1) with a silicon compound having at least one alkoxy group; (3) preparing a support by adding a titanium compound to the resulted product from the step (2); and (4) reacting thus obtained support with a titanium compound and optionally a monoester compound, resulting in a catalyst. Catalysts prepared according to the present invention have a regulated particle shape, and their particle size can be easily adjusted. Therefore, with such catalyst, it is possible to produce polymers having high bulk density at high production yield.

Abstract: Provided is a process for polymerization and copolymerization of ethylene, specifically comprising carrying out polymerization or copolymerization ethylene in the presence of (a) a solid complex titanium catalyst which is produced by the process comprising: (i) preparing a magnesium compound solution by contacting a halogenated magnesium compound and an alcohol for allowing a reaction; (ii) reacting the resulted magnesium compound solution with an ester compound having at least one hydroxyl group and a silicon compound having at least one alkoxy group; (iii) reacting the resulted solution with a mixture of a titanium compound and a silicon compound to obtain a solid titanium catalyst component; (iv) washing the resulted solid titanium catalyst component with a halogenated saturated hydrocarbon compound; and (v) further reacting the washed solid titanium catalyst component with a titanium compound to obtain a solid complex titanium catalyst, and (b) an organometallic compound from Group II or III of Periodic t

Abstract: A preparation method of a solid titanium catalyst for olefin polymerization characteristically comprises the steps of: (1) obtaining a magnesium compound solution by dissolving a magnesium halide compound in an oxygen-containing solvent that is a mixed solvent of a cyclic ether and at least one of alcohols; (2) preparing a carrier by primarily reacting the obtained magnesium compound solution with a titanium halide compound at ?10-30° C., then raising a temperature or aging so as to obtain particles, and secondly reacting the particles with a titanium halide compound; (3) preparing a catalyst by reacting the carrier with a titanium halide compound and an electron donor of phthalic acid dialkylester having a C9-13 alkyl group; and (4) washing the prepared catalyst with a hydrocarbon solvent at 40-200° C.

Abstract: Provided is a process for polymerization and copolymerization of ethylene, specifically comprising carrying out polymerization or copolymerization ethylene in the presence of (a) a solid complex titanium catalyst which is produced by the process comprising: (i) preparing a magnesium compound solution by contacting a halogenated magnesium compound and an alcohol for allowing a reaction; (ii) reacting the resulted magnesium compound solution with an ester compound having at least one hydroxyl group and a silicon compound having at least one alkoxy group; (iii) reacting the resulted solution with a mixture of a titanium compound and a silicon compound to obtain a solid titanium catalyst component; (iv) washing the resulted solid titanium catalyst component with a halogenated saturated hydrocarbon compound; and (v) further reacting the washed solid titanium catalyst component with a titanium compound to obtain a solid complex titanium catalyst, and (b) an organometallic compound from Group II or III of Periodic t

Abstract: Provided is a preparation method of a catalyst for ethylene (co)polymerization, comprising the following steps: (1) preparing a magnesium compound solution by contact-reacting a halogenated magnesium compound with a mixed solvent of cyclic ether and at least one alcohol; (2) reacting the resulted magnesium compound solution from the above step (1) with a silicon compound having at least one alkoxy group; (3) preparing a support by adding a titanium compound to the resulted product from the step (2); and (4) reacting thus obtained support with a titanium compound and optionally a monoester compound, resulting in a catalyst. Catalysts prepared according to the present invention have a regulated particle shape, and their particle size can be easily adjusted. Therefore, with such catalyst, it is possible to produce polymers having high bulk density at high production yield.

Abstract: The present invention relates to a preparation method of solid titanium catalyst for olefin polymerization comprising the steps of: (1) preparing a magnesium compound solution by dissolving a magnesium halide compound into a mixed solvent of a cyclic ether and one or more of alcohol; (2) preparing a carrier by adding firstly a titanium halide compound to the magnesium compound solution at low temperature, elevating the temperature of the resulted solution or aging it, and then thereto adding secondly the titanium halide compound additionally; (3) preparing a titanium catalyst by reacting the carrier with a titanium compound and an electron donor; and (4) washing the titanium catalyst with hydrocarbon solvent at high temperature.

Abstract: The present invention relates to a preparation method of solid titanium catalyst for olefin polymerization comprising the steps of: (1) preparing a magnesium compound solution by dissolving a magnesium halide compound into a mixed solvent of a cyclic ether and one or more of alcohol; (2) preparing a carrier by adding firstly a titanium halide compound to the magnesium compound solution at low temperature, elevating the temperature of the resulted solution or aging it, and then thereto adding secondly the titanium halide compound additionally; (3) preparing a titanium catalyst by reacting the carrier with a titanium compound and an electron donor; and (4) washing the titanium catalyst with hydrocarbon solvent at high temperature.

Abstract: The present invention relates to a preparation method of solid titanium catalyst for olefin polymerization comprising the steps of: 1) preparing a magnesium compound solution by dissolving a magnesium halide compound into a mixed solvent of a cyclic ether and one or more of alcohol; (2) preparing a carrier by, adding a mixture of titanium compound and halogenated hydrocarbon to the magnesium compound solution at low temperature and then elevating the temperature of the resulted solution for reaction; and (3) preparing a solid titanium catalyst by reacting the carrier with a titanium compound and an electron donor.

Abstract: Disclosed is a method of polymerization and copolymerization of ethylene, which is carried out in the presence of (a) a solid titanium complex catalyst prepared by the steps of (i) preparing a magnesium solution by contacting halogenated magnesium compounds with alcohol, (ii) reacting the magnesium solution with ester compound having at least one hydroxyl group and silicon compound having alkoxy group, (iii) preparing a solid titanium catalyst component by reacting mixture of titanium compound and haloalkane compound; and (iv) producing solid titanium complex catalyst by reacting the solid titanium catalyst component with mixture of aluminum compound and haloalkane compound, or with haloalkane; and (b) organometallic compounds in Group II or III of the Periodic Table.

Abstract: The present invention relates to a method for preparing a solid titanium catalyst for olefin polymerization. The method for preparing a solid titanium catalyst for olefin polymerization according to the present invention comprises: preparing a magnesium compound solution by dissolving magnesium halide compound in a solvent mixture of cyclic ether and one or more of alcohol; preparing a carrier by adding titanium halide compound to said magnesium compound solution, then elevating the temperature of the solution and aging the solution to precipitate particles, and then adding titanium halide compound thereto for further reaction; preparing a catalyst by reacting said carrier with titanium compound and electron donor; and washing said catalyst with halogenated saturated hydrocarbon.

Abstract: The present invention provides a method for producing homo- and co-polymers of ethylene, or more particularly a method for producing homo- and copolymers of ethylene in the presence of (a) a solid titanium catalyst produced by preparing a magnesium solution by contact-reacting a halogenated magnesium compound with an alcohol; reacting thereto an ester compound having at least one hydroxyl group and a silicon compound having at least one alkoxy group; and adding a mixture of a titanium compound and a silicon compound; (b) organometallic compounds of Group II or III of the Periodic Table; and (c) an alkoxysilane compound and a haloalkne compound. The catalyst for homo- and co-polymerization of ethylene, produced according to the present invention, exhibits a high activity and the polymers produced by the method of the present invention using said catalyst have the advantages of exhibiting a high bulk density and a narrow molecular weight distribution.

Abstract: Disclosed is a method of polymerization and copolymerization of ethylene, which is carried out in the presence of (a) a solid titanium complex catalyst prepared by the steps of (i) preparing a magnesium solution by contacting halogenated magnesium compounds with alcohol, (ii) reacting the magnesium solution with ester compound having at least one hydroxyl group and silicon compound having alkoxy group, (iii) preparing a solid titanium catalyst component by reacting mixture of titanium compound and haloalkane compound; and (iv) producing solid titanium complex catalyst by reacting the solid titanium catalyst component with mixture of aluminum compound and haloalkane compound, or with haloalkane; and (b) organometallic compounds in Group II or III of the Periodic Table.

Abstract: A method for polymerization and copolymerization of ethylene is disclosed. The polymerization is carried out in the presence of a preactivated titanium solid complex catalyst supported on a carrier containing magnesium. The resulting polymers have the advantage of high bulk density and broad molecular weight distribution.

Abstract: The present invention relates to a catalyst for homo-polymerization or co-polymerization of ethylene, or more particularly to a solid complex titanium catalyst for homo-polymerization or co-polymerization of ethylene. The catalyst may be produced by preparing a magnesium solution by contact-reacting a magnesium halide compound with an alcohol. Reacting the solution with an ester compound and a boron compound. Then reacting the solution with a mixture of a titanium compound and a silicon compound.