| Patents for C07C 4 - Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms (5,080) | 
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| 05/05/1981 | CA1100533A1 Process for vapor phase cracking of dicyclopentadiene and synthesis of 2,3-dihydrodicyclopentadiene therefrom | 
| 04/22/1981 | EP0027157A1 Process for selective dealkylation of alkyl-substituted aromatic hydrocarbons | 
| 04/07/1981 | US4260839 Zeolite catalyst | 
| 03/24/1981 | CA1098104A1 Silica-containing material and manufacture of hydrocarbons catalysed thereby | 
| 03/17/1981 | US4256565 Thermal cracking, high velocity atomized stream, fast heating and cooling rates | 
| 03/11/1981 | EP0024804A1 Selective cracking of phenylalkanes | 
| 03/10/1981 | US4255343 Preparation of 2-T-alkylanthracene | 
| 03/10/1981 | CA1097309A1 Crystalline zeolite zsm-34 and method of preparing the same | 
| 02/17/1981 | US4251676 Selective cracking reactions by cofeeding organic amine or ammonia | 
| 02/17/1981 | US4251674 Method and apparatus for improving the selectivity of a process for hydrogenating acetylene to ethylene | 
| 01/27/1981 | US4247730 Stable catalyst comprising rhodium oxide on a spinel support of alumina and an oxide of nickel, cobalt, copper, iron, zinc or magnesium | 
| 01/13/1981 | US4245130 Isomerization of alkyl aromatics using a gallium containing aluminosilicate catalyst | 
| 01/07/1981 | EP0021445A2 Method for preparing zeolites, zeolites obtained by such method and their use for the conversion of hydrocarbons | 
| 12/24/1980 | WO1980002809A1 Method of regeneration of rhodium-containing catalyst | 
| 12/16/1980 | CA1091642A1 Method of preparing high purity alumina containing catalysts | 
| 12/10/1980 | EP0020043A1 Process for isomerising xylenes | 
| 12/09/1980 | US4238368 Zeolite comprising a metal 8 oxide and an alkali metal oxide or oxide from group 5,6, or 7 | 
| 12/02/1980 | CA1090729A1 Process for the production of fuel values from carbonaceous materials | 
| 11/26/1980 | EP0019304A1 Process for preparing arylic esters of carboxylic acids | 
| 11/25/1980 | US4235702 Hydrocarbon processing | 
| 11/18/1980 | US4234751 Selective cracking of phenylalkanes | 
| 11/11/1980 | US4233186 Group viii metal deposit on a nickel iron or cobalt aluminum oxide spinel catalyst support | 
| 11/04/1980 | US4231751 Novel method of testing a charge calcined alumina to determine its suitability for use in hydrocarbon conversion | 
| 10/28/1980 | CA1088499A1 Silica modified zeolite catalyst and conversion therewith | 
| 10/14/1980 | CA1087598A1 Method for preparing a highly dispersed supported nickel catalyst | 
| 10/01/1980 | EP0016495A1 Process for the preparation of methane and ethane and methane and/or ethane so prepared | 
| 09/30/1980 | US4225738 From n-butene through vinylcyclohexene intermediate | 
| 09/30/1980 | CA1086707A1 Catalyst and process for selective production of para dialkyl substituted benzenes | 
| 09/23/1980 | US4224141 Manufacture of aromatic compounds | 
| 09/17/1980 | EP0015758A1 Process for producing styrenes | 
| 09/02/1980 | CA1084954A1 Disproportionation of toluene | 
| 08/19/1980 | US4218573 Zsm-5 ziolite catalyst | 
| 08/19/1980 | US4218303 Multistage carbonization and devolatilization in the presence of hydrogen provides good yields of benzene toluene and xylenes | 
| 08/06/1980 | EP0014059A1 New form of zeolite ZSM-11, preparation thereof and catalytic conversion therewith | 
| 07/29/1980 | US4215231 Thermal cracking, separation, dealkylation, circulation | 
| 07/29/1980 | US4215018 Heating oxides of a group viii and a group ia metal on a support in a hydrogen atmosphere | 
| 07/22/1980 | US4214113 Method for carrying out pyrolysis of hydrocarbon starting products | 
| 07/22/1980 | US4214110 Process for producing hydrocarbons | 
| 07/15/1980 | CA1081654A1 Arc heater apparatus and method for producing acetylene from heavy hydrocarbon | 
| 07/08/1980 | US4211886 Manufacture of benzene, toluene and xylene | 
| 07/08/1980 | CA1080974A1 Gasification of hydrocarbon feedstocks | 
| 07/01/1980 | US4210520 Unsupported catalysts in the production of olefins | 
| 06/25/1980 | EP0012613A1 A process for producing 3-alkylphenols and 1,3-dihydroxybenzene | 
| 06/25/1980 | EP0012570A2 Selective reaction of 1,4-disubstituted benzene compounds | 
| 06/24/1980 | US4209499 From choline chloride | 
| 06/24/1980 | US4209498 Silica-containing material FU-1 | 
| 06/24/1980 | CA1080147A1 Obtaining hydrocarbons from rubber tires and waste plastic materials | 
| 06/11/1980 | EP0011874A1 Process for the preparation of ethylene by hydropyrolysis | 
| 06/10/1980 | US4207169 Process for the steam dealkylation of aromatic hydrocarbons | 
| 05/28/1980 | EP0011476A1 Production of methane by hydrogenolysis of hydrocarbons; a process for the production of a supported ruthenium catalyst; a catalyst comprising ruthenium | 
| 04/22/1980 | US4199437 Process for steam dealkylation of aromatic hydrocarbons | 
| 04/22/1980 | US4199436 Process for steam-dealkylating alkylaromatic hydrocarbons | 
| 04/15/1980 | CA1075720A1 Method for quenching cracked gases | 
| 04/08/1980 | US4197413 Alkylation over selective zeolite, oxidation to hydroperoxide, rearrangement | 
| 04/08/1980 | US4197186 Hydrocarbon conversion | 
| 03/04/1980 | US4191844 Hydrodealkylation process and catalyst | 
| 03/04/1980 | US4191632 Process for the production of benzene from hydrocarbon fractions rich in alkyl-aromatic hydrocarbons and containing paraffinic and naphthenic hydrocarbons | 
| 03/04/1980 | CA1072989A1 Hydrocracking of polynuclear aromatic containing feedstocks | 
| 02/19/1980 | CA1072128A1 Process for the production of ethylene | 
| 02/12/1980 | US4188308 Conversion of pendant sulfonate groups to sulfonic acid groups on perfluorvinylether-tetrafluoroethylene copolymer catalysts | 
| 02/12/1980 | US4188282 From mixtures of single ring alkyl aromatic compounds of 8 or more carbon atoms by dealkylation and isomerization | 
| 02/12/1980 | US4188281 Groups 6, 7, and 8 metals, oxides or sulfides | 
| 01/22/1980 | CA1070337A1 Method of production of ethane by selective hydrogenolysis of alkanes | 
| 01/22/1980 | CA1070336A1 Method of catalytic conversion of butane | 
| 01/01/1980 | US4181811 Using a crystalline alumina-silica zeolite catalyst to produce 1,2 or 1,3-isomers | 
| 01/01/1980 | US4181601 Increased yields of light olefins and benzene-toluene-xylene obtained by addition of chlorine, fluorine, and mixtures to a bimetallic catalyst | 
| 12/12/1979 | EP0005909A1 Isomerisation of alkyl aromatics using a gallium containing aluminosilicate catalyst | 
| 12/04/1979 | US4177219 Granulation of penicillins | 
| 11/27/1979 | CA1067104A1 Process for the hydrodealkylation of alkylaromatic hydrocarbons | 
| 10/30/1979 | US4172856 Olefins | 
| 10/30/1979 | US4172813 Process for selectively hydrodealkylating/transalkylating heavy reformate | 
| 10/23/1979 | CA1064890A1 Crystalline zeolite, synthesis and use thereof | 
| 10/16/1979 | US4171329 Novel method for dealkylating alkylaromatic hydrocarbons | 
| 10/16/1979 | US4171257 Petroleum distillate upgrading process | 
| 08/28/1979 | US4166077 Method of production of ethane by selective hydrogenolysis of alkane | 
| 08/21/1979 | CA1060908A1 Olefins production | 
| 08/14/1979 | CA1060211A1 Process for producing a gaseous product from carbonaceous material | 
| 07/10/1979 | CA1058226A1 Alkylation in presence of phosphorus-modified crystalline aluminosilicate catalyst | 
| 07/03/1979 | US4159970 Alkaline earth oxides promoted with manganese oxide and/or rhenium oxide as catalysts for cracking and dehydrocyclizing of alkanes | 
| 06/12/1979 | US4157950 Hydrorefining zeolite, aromatization, alkylation | 
| 05/30/1979 | EP0002048A1 Process for the preparation of 2,3- dihydrodicyclopentadiene from dicyclopentadiene and cyclopentene | 
| 05/29/1979 | CA1055531A1 Cracking process | 
| 05/02/1979 | EP0001695A1 Crystalline aluminosilicate zeolite, synthesis and use thereof | 
| 05/01/1979 | US4152361 Contacting phenylcyclohexane with an alkali metal aluminosilicate | 
| 04/24/1979 | US4151217 Method of cooling cracked gases of low boiling hydrocarbons | 
| 04/17/1979 | US4150099 Synthetic halloysites | 
| 04/03/1979 | US4147734 Process for dealkylating an alkylaromatic hydrocarbon using supported catalyst | 
| 03/20/1979 | US4145400 Coprecipitation salts of aluminum and cobalt or nickel with sodium carbonate | 
| 03/13/1979 | US4143521 Thermocracking; utilization of waste heat to generate ammonia refrigerant | 
| 03/06/1979 | US4143086 With a hydrocarbon feedstock, containing titanium polymerization catalyst residues | 
| 03/06/1979 | US4142962 Hydrogenation and hydrocracking with highly dispersed supported nickel catalysts | 
| 02/20/1979 | US4140621 Maintaining or increasing the isobutane content of a cut subjected to selective hydrogenolysis | 
| 02/20/1979 | US4140493 Hydrocarbon steam reforming process | 
| 02/13/1979 | US4139569 Vapor phase cracking of dicyclopentadiene and synthesis of 2,3-dihydroxycyclopentadiene and cyclopentene | 
| 02/13/1979 | US4139496 Oxides of nickel, potassium, chromium, aluminum; nickel metal | 
| 02/13/1979 | US4139491 Novel method for preparing a high purity alumina | 
| 02/06/1979 | US4138443 Hydrodealkylation of alkylaromatic hydrocarbons | 
| 01/30/1979 | US4137147 Process for manufacturing olefinic hydrocarbons with respectively two and three carbon atoms per molecule | 
| 01/23/1979 | US4136129 Oxides of group 8 and group 1a | 
| 01/09/1979 | CA1046091A1 Process for producing hydrocarbons |