Patent application number | Description | Published |
20100292423 | CATALYST COMPOSITION FOR OLIGOMERIZATION OF ETHYLENE OLIGOMERIZATION PROCESS AND METHOD FOR ITS PREPARATION - Catalyst composition for the oligomerization of ethylene, comprising (i) an at least partially hydrolyzed transition metal compound, obtainable by controlled addition of water to a transition metal compound having the general formula MX | 11-18-2010 |
20100298618 | CATALYST COMPOSITION AND PROCESS FOR OLIGOMERIZATION OF ETHYLENE - The present invention relates to a catalyst composition comprising: (a) a binuclear chromium(II) complex; (b) a ligand of the general structure (A) R | 11-25-2010 |
20110046429 | Method for preparing linear alpha-olefins - The present invention relates to a method for preparing linear alpha-olefins (LAO) by oligomerization of ethylene in the presence of solvent and homogenous catalyst, comprising the steps of: (i) feeding ethylene, solvent and catalyst into an oligomerization reactor, (ii) oligomerizing the ethylene in the reactor, (iii) removing a reactor outlet stream comprising solvent, linear alpha-olefins, ethylene, and catalyst from the reactor via a reactor outlet piping system, (iv) transferring the reactor outlet stream to a catalyst deactivation and removal step, and (v) deactivating and removing the catalyst from the reactor outlet stream, characterized in that at least one organic amine is added into the oligomerization reactor and/or into the reactor outlet piping system. | 02-24-2011 |
20110054130 | CATALYST COMPOSITION AND PROCESS FOR PREPARING LINEAR ALPHA-OLEFINS - The present invention relates to a catalyst composition for the oligomerization of ethylene, comprising a transition metal compound of the general formula MX | 03-03-2011 |
20110172370 | CATALYST FOR OLIGOMERIZATION OF ETHYLENE, METHOD FOR PREPARATION THEREOF AND PROCESS FOR OLIGOMERIZATION USING IT - The present invention relates to a catalyst for oligomerization of ethylene, comprising a functionalized solid support; a ligand immobilized on the solid support by chemical bonding, wherein the immobilized ligand has the structure (R | 07-14-2011 |
Patent application number | Description | Published |
20090203859 | Process for the polymerizaion of olefins - The present invention relates to a process for the polymerization of olefins, comprising the steps of introducing at least one olefin, at least one polymerization catalyst, at least one cocatalyst and at least one cocatalyst aid, and optionally a scavenger, into a polymerization reactor, and polymerizing the olefin, wherein the cocatalyst aid is a reaction product prepared separately prior to the introduction into the reactor by reacting at least one metal alkyl compound of group IIA or IIIA of the periodic system of elements and at least one compound (A) of the formula R | 08-13-2009 |
20090306449 | Process for the Preparation of Linear Alpha-Olefins and Catalyst Used Therein - The present invention relates to a process for the preparation of linear low molecular weight alpha-olefins having 4 to 24 carbon atoms, comprising oligomerizing ethylene in an inert solvent in the presence of a catalyst system comprising: (i) zirconium carboxylate of the formula (R | 12-10-2009 |
20100152398 | Catalyst Composition And A Process For The Oligomerization Of Ethylene - The present invention relates to a catalyst composition for the oligomerization of ethylene comprising at least one transition metal bisphenolate compound and at least one cocatalyst. The transition metal bisphenolate is a zirconium bisphenolate. | 06-17-2010 |
20100190939 | CATALYST COMPOSITION AND PROCESS FOR DI-, TRI-AND/OR TETRAMERIZATION OF ETHYLENE - The present invention relates to a catalyst composition and a process for di-, tri- and/or tetramerization of ethylene, wherein the catalyst composition comprises a chromium compound, a ligand of the general structure (A) R | 07-29-2010 |
20130310245 | PROCESS FOR POLYMERISATION OF ETHYLENE - The present invention is directed to a process for the production of high density polyethylene by polymerisation of ethylene in the presence of a supported chromium oxide based catalyst which is modified with an organic compound comprising oxygen and a nitrogen atom which is selected from the group consisting of saturated heterocyclic organic compounds with a five or six membered ring, amino esters and amino alcohols. Such organic compounds allow manufacturing of HDPE with increases molecular weight distribution and increased molecular weight. | 11-21-2013 |
20130337210 | GAS PHASE POLYMERISATION OF ETHYLENE - The disclosed process is for the production of polyethylene by gas phase polymerisation of ethylene in the presence of a supported chromium oxide based catalyst which is modified with an amino alcohol wherein the molar ratio of amino alcohol:chromium ranges between 0.5:1 and 1:1, wherein the support is silica having a surface area (SA) between 250 m | 12-19-2013 |
20140171605 | POLYMERISATION OF ETHYLENE IN THE PRESENCE OF A SILYLCHROMATE BASED CATALYST - The invention relates to a process for the production of high density polyethylene by polymerisation of ethylene in the presence of a silylchromate based catalyst and a reducing agent is characterized in that the reducing agent comprises the reaction mixture of an alkyl aluminium compound and/or boron compound and a nitrogen containing compound. The alkyl aluminium compound is an organo aluminium compound having the formula AlR | 06-19-2014 |
20140179970 | CATALYST COMPOSITION AND PROCESS FOR DI-, TRI-AND/OR TETRAMERIZATION OF ETHYLENE - A catalyst composition and a process for di-, tri- and/or tetramerization of ethylene, wherein the catalyst composition comprises a chromium compound, a ligand of the general structure R | 06-26-2014 |