| Patents for C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives (13,802) |
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| 09/10/2002 | CA2210039C A process for the extraction of lycopene and extracts containing it |
| 09/06/2002 | WO2002068366A1 Method for ethane recovery, using a refrigeration cycle with a mixture of at least two coolants, gases obtained by said method, and installation therefor |
| 09/06/2002 | WO2002033025A3 C-nitrosoaniline compounds and their blends as polymerization inhibitors |
| 09/06/2002 | CA2438872A1 Method for ethane recovery, using a refrigeration cycle with a mixture of at least two coolants, gases obtained by said method, and installation therefor |
| 09/05/2002 | US20020123658 Recycling streams containing polymerization inhibitors at reboiler temperature no higher than 110 degrees C |
| 09/04/2002 | CN1090225C Method of eliminating mercury from liquid hydrocarbons |
| 09/03/2002 | US6444619 Delivery system for cyclopropenes |
| 08/29/2002 | WO2002066785A1 Composition and method for inhibition of formation of gas hydrates |
| 08/29/2002 | WO2002032838A3 Process for selective hydrogenation of an olefinic feed stream containing acetylenic and diolefinic impurities |
| 08/28/2002 | EP1233989A2 Inhibition of polymerization of unsaturated monomers |
| 08/28/2002 | EP1233937A2 Inhibition of polymerization of unsaturated monomers |
| 08/28/2002 | EP1127099B1 Ph control method of reducing nitrogen oxides emission |
| 08/28/2002 | CN1089741C Process for producing ethylene from demethanation at high temp |
| 08/28/2002 | CN1089740C 烃气体的处理 Processing of hydrocarbon gas |
| 08/27/2002 | US6441258 Synthesis and isomerization of 1,2-bis (indenyl) ethanes |
| 08/27/2002 | US6441230 Acylation agent |
| 08/27/2002 | US6440299 Process for removal of mercaptans from hydrocarbon streams |
| 08/22/2002 | WO2002064703A2 Removal of impurities from hydrocarbon streams |
| 08/22/2002 | WO2002064533A1 Obtaining anthracene and carbazole by melt-crystallization |
| 08/22/2002 | WO2002064530A1 Sulfone-sulfoxide compositions for enhance aromatic extraction |
| 08/22/2002 | US20020112992 Introducing a hydrocarbon stream containing at least one heteroatom-containing compound and water to a contacting zone containing a water adsorbent and a heteroatom-containing compound adsorbent; stripping using an isoparaffin |
| 08/22/2002 | CA2437769A1 Removal of impurities from hydrocarbon streams |
| 08/22/2002 | CA2433000A1 Isolation of anthracene and carbazole by melt-crystallization |
| 08/21/2002 | EP1232231A1 Process for btx purification |
| 08/21/2002 | CN1089320C Method and device for coating glass |
| 08/21/2002 | CN1089277C Non-crystalline alloy catalyst containing Ni and B, its prepn. and use |
| 08/21/2002 | CN1089272C Adsorbent for preparing meta-xylene by adsorption and separation and its preparing process |
| 08/20/2002 | US6436368 Process for preparing beclomethasone dipropionate freon® clathrate |
| 08/20/2002 | CA2168580C Method for removing catalyst from an oligomer product |
| 08/15/2002 | WO2002062733A1 Method for recovering crude 1,3-butadiene by extractive distillation from a c4 cut |
| 08/14/2002 | DE10105660A1 Verfahren zur Gewinnung von Roh-1,3-Butadien durch Extraktivdestillation aus einem C4-Schnitt A process for recovering crude 1,3-butadiene by extractive distillation of a C 4 cut |
| 08/14/2002 | DE10103208A1 Gewinnung von Anthracen und Carbazol durch Schmelzkristallisation Of anthracene and carbazole by melt crystallization |
| 08/13/2002 | US6433242 Process for fractionating dibutene |
| 08/08/2002 | US20020107427 From C8 aromatic hydrocarbons, using a para-selective, adsorbent such as non-acidic, medium pore molecular sieve of the MFI structure type operated isothermally integrated with crystallization |
| 08/08/2002 | US20020107425 Reacting indenyl lithenide with dihaloalkane in tetrahydrofuran to produce isomers of 1,2-bis(indenyl)ethane |
| 08/07/2002 | EP1228162A1 Methods and compositions for inhibiting vinyl aromatic monomer polymerization |
| 08/07/2002 | EP1228021A1 Selective methylation to para-xylene using fuel syngas |
| 08/01/2002 | WO2002058844A1 Stable free nitroxyl radicals as oxidation catalysts and process for oxidation |
| 08/01/2002 | US20020103408 Using barium and potassium exchanged zeolitic molecular sieve as the adsorbent and toluene as the desorbent; purity |
| 08/01/2002 | CA2429490A1 Stable free nitroxyl radicals as oxidation catalysts and process for oxidation |
| 07/31/2002 | CN1361756A Process for the separation of isobutene from normal butenes |
| 07/31/2002 | CN1088450C Method for separating membrane in use |
| 07/31/2002 | CN1088395C Adsorbent for preparing meta-xylene by adsorptive separation and its preparing process |
| 07/30/2002 | US6426441 Contacting a volatility reducing additive and hydrofluoric acid catalyst with hydrocarbon mixture in an alkylation zone, phase separating, octance number of 85-98 |
| 07/30/2002 | CA2121057C Method and apparatus for the separation of c4 hydrocarbons from gaseous mixtures containing the same |
| 07/25/2002 | WO2002058139A2 Diamondoid-containing materials in microelectronics |
| 07/25/2002 | WO2002057204A1 Cumene synthesis process |
| 07/25/2002 | WO2002057203A1 Compositions comprising cyclohexamantane |
| 07/25/2002 | WO2002057202A1 Compositions comprising higher diamondoids and processes for their separation |
| 07/25/2002 | WO2002057201A2 Polymerizable higher diamondoid derivatives |
| 07/25/2002 | US20020099251 Pressure swing adsorption process for separating para-xylene and ethylbenzene from mixed C8 aromatics |
| 07/25/2002 | US20020099231 As ligands for metallocene olefin polymerization catalysts |
| 07/25/2002 | CA2435132A1 Compositions comprising higher diamondoids and processes for their separation |
| 07/25/2002 | CA2434921A1 Polymerizable higher diamondoid derivatives |
| 07/25/2002 | CA2434791A1 Diamondoid-containing materials in microelectronics |
| 07/24/2002 | EP1045820B1 Ethylene plant refrigeration system |
| 07/24/2002 | EP0931042B1 Process for concurrent selective hydrogenation of acetylenes and 1,2 butadiene in hydrocarbon streams |
| 07/24/2002 | CN1359885A Process for separating mixture containing 4-methyl-1-pentene and 4-methyl-2-pentene |
| 07/24/2002 | CN1359749A Composite adsorbent for purifying hydrocarbon stream |
| 07/24/2002 | CN1088095C Process and apparatus for converting C4 olefine fraction to polyisobutylene and propene |
| 07/23/2002 | US6423881 Selective adsorption of alkenes using supported metal compounds |
| 07/23/2002 | US6423211 Method for reducing organic fluoride levels in hydrocarbons |
| 07/18/2002 | WO2002040432A3 Adsorptive separation process for recovery of para-xylene |
| 07/17/2002 | EP0882231B1 Recovery of taxanes from conifers |
| 07/17/2002 | CN1359367A Ethylene recovery system |
| 07/17/2002 | CN1358697A Process for separating butane and butylene by methyl-ethyl ketone mixing solvent |
| 07/17/2002 | CN1358695A Productive process for isoalkene and/or tertiary alkyl ether |
| 07/17/2002 | CN1358566A Adsorbent, its preparation process and use in separating dimethyl benzene |
| 07/16/2002 | CA2088064C Hydrocarbon treatment |
| 07/10/2002 | CN1087305C Process for polymerization of olefins |
| 07/10/2002 | CN1087279C Process for preparing olefines by 2C or 3C alkyne gas phase selective hydrogeneration |
| 07/09/2002 | US6417419 Butadiene/1,3-/ formation by catalysis using copper with an activator comprising nickel, cobalt, platinum, palladium, and/or manganese dispersed on oxide support; catalyst selectivity |
| 07/04/2002 | WO2002051962A1 Use of a composition based on a diphenylamine derivative for inhibiting free radical polymerisation of ethylenically unsaturated aromatic monomers |
| 07/04/2002 | WO2002051777A1 Process for producing low polymer of ethylene |
| 07/04/2002 | US20020087032 Separating off the unoxidized olefin from the acetaldehyde reaction mixture with membrane separation process |
| 07/04/2002 | US20020087023 Process and apparatus for isolating organic substances from a gas mixture in which these substances are present |
| 07/03/2002 | EP1218323A1 Hydrogenation of benzene to cyclohexane |
| 07/03/2002 | EP1218322A1 Catalyst composition and process for making the composition |
| 07/03/2002 | CN1356920A Solvent extraction process |
| 07/02/2002 | US6414210 Separating light olefins from paraffins in mixtures containing hydrogen by bringing into contact with aqueous solution of one or more silver compounds and one or more ferric compounds |
| 07/02/2002 | US6414205 Process for the removal of MAPD from hydrocarbon streams |
| 07/02/2002 | US6413378 An oil apparatus having detectors, thermostats, fluid flow controllers and heaters for the extraction and distillation of petroleum feedstock containing butadiene and butene |
| 07/02/2002 | CA2047382C Stabilized monomer compositions |
| 06/27/2002 | WO2002049997A1 A process to remove reaction by-products from a selective hydrogenation effluent stream |
| 06/27/2002 | WO2002029341A3 Hydrocarbon gas processing |
| 06/27/2002 | WO2002014241A3 Method for side chain alkylation or alkenylation |
| 06/27/2002 | US20020082462 Recovering in a paraxylene recovery unit portion of paraxylene from at C-8 aromatics stream to produce a first stream having a reduced paraxylene content; passing to zeolite membrane unit comprising a zeolite membrane and isomerisation catalyst |
| 06/27/2002 | US20020078622 Process for preparing highly pure raffinate II and Methyl tert-butyl ether |
| 06/26/2002 | EP1217060A1 Process for treatment of butadiene and acetylenes containing C4-hydrocarbons comprising the steps of distillation and selective hydrogenation |
| 06/26/2002 | EP1216978A1 Hydrocarbon purification system regeneration |
| 06/26/2002 | EP1216216A1 Method for the friedel-crafts alkylation of organic compounds |
| 06/26/2002 | CN1355835A Antigelling agent for hydrocarbon mixture containing conjugated and method for preventing clogging of apparatus for separating and purifying mixture |
| 06/26/2002 | CN1355779A Direct selective synthesis of para-xylene method |
| 06/26/2002 | CN1355777A Method for preventing undesired polymerisation in mixture of substances containing ethylenically unsaturated compounds |
| 06/26/2002 | CN1355158A Process for preparing high-purity butylene-1 from sulfur-contained c4 fraction |
| 06/25/2002 | US6410817 Ethylene recovery system |
| 06/25/2002 | US6410815 Agglomerated zeolite adsorbents, process for their preparation, and their use for adsorbing paraxylene from aromatic C8 fractions |
| 06/25/2002 | US6409887 For inhibiting olefinic polymerisation |
| 06/21/2002 | CA2353743A1 Hydrocarbon purification system regeneration |
| 06/20/2002 | US20020077519 Introducing a gaseous mixture comprising meta-xylene, ortho-xylene, para-xylene, and subjecting mixture to pressure swing adsorption under substantially isothermal conditions using an adsorbent; isomerization, recycling, removing |