| Patents for C07C 4 - Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms (5,080) | 
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| 01/06/1998 | US5705726 Catalytic isomerization of xylene and ethylbenzene with zeolites | 
| 12/17/1997 | EP0812926A1 Nickel-base alloys used for ethylene pyrolysis applications | 
| 12/16/1997 | US5698757 Platinum and gallium promoted zeolite | 
| 12/11/1997 | WO1997046636A1 Shape selective zeolite catalyst and its use in aromatic compound conversion | 
| 12/04/1997 | WO1997045387A1 Methylation of toluene to para-xylene | 
| 12/04/1997 | WO1997045198A1 Zeolite catalyst and its use in hydrocarbon conversion | 
| 12/04/1997 | WO1997045197A1 Metal-containing zeolite catalyst, preparation thereof and use for hydrocarbon conversion | 
| 12/04/1997 | WO1997045196A1 Hydrocarbon conversion catalyst and its use | 
| 12/04/1997 | CA2256515A1 Metal-containing zeolite catalyst, preparation thereof and use for hydrocarbon conversion | 
| 12/04/1997 | CA2255873A1 Methylation of toluene to para-xylene | 
| 11/25/1997 | CA2024903C Enhanced production of ethylene from higher hydrocarbons | 
| 11/19/1997 | EP0792251A4 Dual bed xylene isomerization | 
| 11/18/1997 | US5689027 Catalytic isomerization of xylene | 
| 11/18/1997 | US5689026 Catalyst containing zeolite beta, nickel, molybdenum, and sulfur | 
| 11/13/1997 | WO1997042145A1 Process for converting a geminally substituted cyclopentadiene | 
| 11/12/1997 | EP0806467A1 Process and apparatus for the thermal conversion of hydrocarbons into more insaturated aliphatic hydrocarbons by combination of a steam cracking and a pyrolysis step | 
| 11/05/1997 | EP0804395A1 Phase-transfer catalysis | 
| 11/05/1997 | EP0804287A1 Catalyst for oxidative dehydrogenation of paraffinic hydrocarbons and use of this catalyst | 
| 10/15/1997 | CN1162295A Synthetic swelling clay minerals | 
| 10/15/1997 | CN1162274A Hydrocarbon conversion catalyst and method of catalytic onversion therewith | 
| 10/02/1997 | DE19612433A1 Recovery of olefin(s) from waste polyolefin material | 
| 09/30/1997 | US5672794 Thermal depolymerization in presence of magnesium aluminum silicate heat exchanger | 
| 09/23/1997 | US5670037 In the presence of a phosphorus and rare earth containing high silica zeolite having the structure of pentasil catalysts | 
| 09/18/1997 | WO1997033692A1 Crystalline metallophosphates | 
| 09/03/1997 | EP0792251A1 Dual bed xylene isomerization | 
| 08/28/1997 | WO1997030956A1 Method for changing the qualitative and quantitative composition of a mixture of liquid hydrocarbons | 
| 08/19/1997 | US5658452 Hydrocracking with reduced amount steam in a reactor comprising a metallic protective coatings on steel | 
| 08/13/1997 | EP0788838A1 Hydrocarbon conversion catalyst and method of catalytic conversion therewith | 
| 08/13/1997 | CN1156975A Catalyst comprising at least hydrogenation metal component and synthetic clay | 
| 08/13/1997 | CN1035600C Catalysts containing homogeneous layered clay/inorganic oxide | 
| 08/12/1997 | CA2040514C Crystalline silicon enhanced aluminas | 
| 08/06/1997 | EP0457853B1 A process for the catalytic conversion of a c9+ aromatics feed | 
| 07/31/1997 | WO1997027162A1 Process for production of paraxylene | 
| 07/31/1997 | WO1997027161A1 Process for conversion of ethylbenzene | 
| 07/31/1997 | CA2244181A1 Process for conversion of ethylbenzene | 
| 07/31/1997 | CA2244179A1 Process for production of paraxylene | 
| 07/23/1997 | EP0785178A1 Process for producing aromatic hydrocarbon | 
| 07/23/1997 | EP0703888B1 Process for reducing the degree of branching of branched olefins | 
| 07/16/1997 | CN1154687A Process for producing aromatic hydrocarbon | 
| 07/15/1997 | US5648178 Reactor system steel portion | 
| 07/02/1997 | EP0781828A1 Continuous pyrolysis and decoking process, paticularly applicable to the production of acetylene | 
| 06/18/1997 | EP0778811A1 Synthetic swelling clay minerals | 
| 06/18/1997 | EP0778792A1 Catalyst comprising at least a hydrogenation metal component and a synthetic clay | 
| 06/17/1997 | US5639937 Process for the production of olefins | 
| 06/04/1997 | CN1150942A Method for preparation of high purity cyclopentadiene | 
| 05/29/1997 | WO1997019021A1 Zeolite itq-1 | 
| 05/28/1997 | EP0394434B1 New zeolite ssz-31 | 
| 05/27/1997 | US5633421 Regeneration catalytic system by burning coke | 
| 05/13/1997 | US5629464 Method for forming unsaturated organics from organic-containing feed by employing a Bronsted acid | 
| 05/01/1997 | WO1996033252A3 Methods for using styrene oil (as heat transfer fluid, hydraulic fluid, lubricant) | 
| 04/29/1997 | US5625104 Alkali metal ion exchanged selectivated zeolite catalyst | 
| 04/16/1997 | EP0767768A1 Haloalkylation process | 
| 04/16/1997 | CN1147422A Zeolite catalysts and various processes carried out in pressure of said zeolite catalysts | 
| 04/16/1997 | CN1034586C Catalytic conversion method of low-carbon olefines high-output | 
| 04/02/1997 | EP0765927A1 Method for producing beta-methylnaphthalene | 
| 03/28/1997 | CA2186082A1 Method for producing .beta.-methylnaphthalene | 
| 03/26/1997 | CN1034325C Zeolites | 
| 03/19/1997 | EP0738313A4 Cracking processes | 
| 02/26/1997 | EP0588998B1 Olefin production process | 
| 02/04/1997 | US5600051 Passing hydrocarbon gas through heated tube while exposing to surface of barium silicate glass-ceramic; catalytic thermocracking | 
| 02/04/1997 | US5599510 Catalytic wall reactors and use of catalytic wall reactors for methane coupling and hydrocarbon cracking reactions | 
| 01/30/1997 | WO1997003147A1 Method for controllably decomposing hydrocarbon polymers | 
| 01/30/1997 | CA2224480A1 Method for controllably decomposing hydrocarbon polymers | 
| 01/22/1997 | CN1033850C Nu-86 Zeolites | 
| 01/16/1997 | WO1997001522A1 Increasing production in hydrocarbon conversion processes | 
| 01/09/1997 | WO1997000925A1 Method for monomer recovery | 
| 01/09/1997 | CA2222284A1 Method for monomer recovery | 
| 01/02/1997 | EP0750587A1 Crystalline borophosphates, their production and use | 
| 12/11/1996 | EP0746596A1 Process for producing thermally cracked products from hydrocarbons | 
| 12/10/1996 | CA1338791C Process and apparatus for hydrocarbon transformation | 
| 11/20/1996 | EP0743294A1 Dehydration of alkanes in the presence of barium silicate | 
| 11/20/1996 | CN1033317C Process for preparation of olefins-containing mixture of hydrocarbons | 
| 11/19/1996 | US5575902 Hydrocarbons | 
| 11/06/1996 | EP0575579B1 Process for preparing olefins | 
| 10/29/1996 | US5569804 Feeding effluent from reaction of cyclic diolefin and olefin to produce alkenyl bridged ring compound to distillation column, removing product compound, removing overhead, cracking dimerized cyclic diolefin in bottoms | 
| 10/29/1996 | US5569801 Polymer conversion process | 
| 10/24/1996 | WO1996033252A2 Methods for using styrene oil (as heat transfer fluid, hydraulic fluid, lubricant) | 
| 10/23/1996 | EP0738313A1 Cracking processes | 
| 10/23/1996 | EP0738250A1 Method for reforming organics into shorter-chain unsaturated organic compounds | 
| 10/16/1996 | EP0737178A1 Recovery of reactants and products in production of alkenyl bridged ring compounds | 
| 10/15/1996 | US5565069 Subjecting tetrahydroindene, dicyclopentadiene mixture to thermal decomposition; distillation; reacting with butadiene | 
| 10/15/1996 | CA2001345C Isomerization catalyst and method for the use thereof | 
| 10/09/1996 | EP0735994A1 Method for producing unsaturated organics from organic-containing feeds | 
| 09/25/1996 | EP0733609A1 Process for the thermal conversion of aliphatically saturated or unsaturated hydrocarbons in acetylenic hydrocarbons | 
| 09/10/1996 | US5554347 Apparatus for carrying out chemical reactions requiring addition of heat at least during start up | 
| 09/04/1996 | CN1130166A Method for preparing product containing isobutane/isohexane | 
| 08/28/1996 | EP0728831A2 Process and apparatus for the cracking of hydrocarbons | 
| 08/28/1996 | CN1129686A Method and apparatus for producing cyclopentadience by depolymerizing dicyclopentadience | 
| 08/21/1996 | EP0727404A1 A high productive process for production of lower olefins by catalytic conversion | 
| 08/06/1996 | US5543558 Method for producing unsaturated organics from organic-containing feeds | 
| 08/01/1996 | DE19502857A1 Acetylene prodn. with high selectivity and reduced energy consumption | 
| 07/31/1996 | CN1128014A Process for reducing the degree of branching of branched olefins | 
| 07/25/1996 | WO1996022161A1 Catalyst for oxidative dehydrogenation of paraffinic hydrocarbons and use of this catalyst | 
| 07/25/1996 | CA2210756A1 Catalyst for oxidative dehydrogenation of paraffinic hydrocarbons and use of this catalyst | 
| 07/17/1996 | CN1032304C Polymer cracking | 
| 07/16/1996 | US5536687 Catalyst containing zeolite Beta | 
| 06/26/1996 | EP0718259A1 Process for the preparation of an isobutane/isohexane containing product | 
| 06/19/1996 | EP0717094A1 Process for the recuperation of solid paraffins from highly polluted poyolefinic wastes | 
| 05/30/1996 | WO1996016005A1 Dual bed xylene isomerization | 
| 05/29/1996 | EP0713518A1 Depolymerization process |