| Patents for C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives (13,802) |
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| 05/03/2000 | EP0787517B1 An improved simulated moving bed adsorption separation process |
| 05/03/2000 | CN1051988C Separation of m-xylene from p-xylene |
| 05/02/2000 | US6057487 Precipitation and separation supernatant with 2,6-dimethylnaphthalene |
| 05/02/2000 | CA1340979C Silane derivatives, processes for their preparation, agents containing them, and their use as pesticides |
| 04/27/2000 | DE19835203C1 Kontinuierliches Verfahren und Wärmepumpenvorrichtung zur Anreicherung der bei der Herstellung von Cycloalkandienen in flüssigen organischen Reaktionsmedien anfallenden niedrig konzentrierten Reaktionsgemische A continuous process and heat pump device for enriching the costs incurred in the preparation of cycloalkanedienes in liquid organic reaction media low concentrated reaction mixtures |
| 04/26/2000 | EP0994931A1 Removal of benzene from organic streams using cyclodextrins |
| 04/25/2000 | US6054630 Apparatus comprising a catalytic distillation zone comprising a reaction zone with distribution of hydrogen |
| 04/19/2000 | EP0993585A1 Process for liquefying a natural gas stream containing at least one freezable component |
| 04/19/2000 | CN1250768A Process for preparing anthracene, phenanthrene and karbazole |
| 04/18/2000 | US6051528 On catalyst support |
| 04/18/2000 | CA2026567C Treatment of arsine removal catalysts |
| 04/12/2000 | EP0991733A1 Mixture of substances containing compounds with vinyl groups and stabilizers |
| 04/06/2000 | DE19905104C1 Emulsifiers for preparing paraffin emulsions of high oil content for use e.g. in cosmetic or pharmaceutical formulations or as lubricants, comprising ethoxylated glyceride mixtures |
| 04/05/2000 | EP0989968A1 Process for separating linear alpha olefins from 2-branched and/or 3-branched alpha olefins |
| 04/05/2000 | EP0688308B1 Benzene reduction in gasoline by alkylation with higher olefins |
| 04/05/2000 | CN1051070C Two-stage crystallization method for extracting raw anthracene from anthracene oil |
| 03/30/2000 | WO2000017134A1 Separation of hydrocarbons using adsorption technics |
| 03/28/2000 | US6043404 Alkyl halides removed from a liquid hydrocarbon stream at low temperatures by reaction with isoalkane and/or aromatic hydrocarbons in the presence of an acid catalyst on a solid support |
| 03/28/2000 | US6042798 Method of desulfurization of hydrocarbons |
| 03/28/2000 | CA2066456C Absorbent material and uses thereof |
| 03/23/2000 | WO2000015594A1 Process for making aromatic aldehydes using ionic liquids |
| 03/23/2000 | WO2000015593A2 Process for making aromatic aldehydes |
| 03/23/2000 | CA2343400A1 Process for making aromatic aldehydes |
| 03/23/2000 | CA2343309A1 Process for making aromatic aldehydes using ionic liquids |
| 03/22/2000 | CN1248236A Method for eliminating inhibitors of polymerisation of monomer mixtures using optimized alumina |
| 03/22/2000 | CN1248234A Method for eliminating inhibitors of polymerization of monomer mixtures using alumina with optimised form |
| 03/22/2000 | CN1050595C Improved adsorptive separation of metalxylene from aromatic hydrocarbons |
| 03/22/2000 | CN1050593C Method and apparatus for preparing preproduct containing aromatic hydrocarbons for production of aromatics |
| 03/21/2000 | US6040489 1,3-Butadiene separation from a crude C4 stream using catalytic extractive distillation |
| 03/21/2000 | US6039895 Benzoquinoneimines as vinyl aromatic polymerization inhibitors |
| 03/16/2000 | WO2000014177A1 Vinyl monomer polymerization inhibition using hindered hydroxylamines |
| 03/16/2000 | WO2000014175A1 Chemical compositions |
| 03/16/2000 | WO2000014039A1 Styrene monomer polymerization inhibition using substituted dihydroxyarenes and nitroxides |
| 03/16/2000 | WO2000013782A1 Fluid distributor-mixer-extractor and related method |
| 03/16/2000 | WO2000013768A1 Supported glass membrane for gas separation |
| 03/16/2000 | CA2343022A1 Vinyl monomer polymerization inhibition using hindered hydroxylamines |
| 03/16/2000 | CA2342945A1 Styrene monomer polymerization inhibition using substituted dihydroxyarenes and nitroxides |
| 03/15/2000 | EP0985447A2 Catalyst and process for the selective hydrogenation of unsaturated compounds in hydrocarbon streams |
| 03/14/2000 | US6037516 Method for removal of oxygenate impurities from organic chemical streams |
| 03/14/2000 | US6037515 Process for producing ethylene from a hydrocarbon feedstock |
| 03/14/2000 | US6037301 Hydrogenation catalysts containing boron, group viii metal |
| 03/09/2000 | DE19850450C1 Separation of carbon dioxide and hydrocarbons with recycle to rectification avoids requirement for separate carbon dioxide scrubber and dangers of freezing-out of carbon dioxide |
| 03/09/2000 | DE19840373A1 Katalysator und Verfahren zur Selektivhydrierung ungesättigter Verbindungen in Kohlenwasserstoffströmen Catalyst and process for the selective hydrogenation of unsaturated compounds in hydrocarbon streams |
| 03/09/2000 | DE19838932A1 Verfahren zur Gewinnung von Butadien-1,2 A process for recovering 1,2-butadiene |
| 03/08/2000 | EP0666767B1 High purity benzene production using extractive distillation |
| 03/08/2000 | CN1246387A Adsorbent for preparing meta-xylene by adsorptive separation and its preparing process |
| 03/07/2000 | US6033529 Separation of mesitylene from 4-ethyl toluene by azeotropic distillation |
| 03/04/2000 | CA2281247A1 Catalyst and process for the selective hydrogenation of unsaturated compounds in hydrocarbon streams |
| 03/02/2000 | WO2000010950A1 Controlling deposition of foulants in aliphatic hydrocarbons dehydrogenation equipment |
| 03/01/2000 | EP0982280A1 Process for the recovery of butadiene-1,2 |
| 02/29/2000 | US6031144 Process for reducing the residual olefin content of an alkylation reaction product |
| 02/23/2000 | EP0980909A1 Hydrocarbon conversion process and its application in the hydrogenation of benzene |
| 02/22/2000 | US6028235 Gas hydrate regassification method and apparatus using steam or other heated gas or liquid |
| 02/17/2000 | WO2000008400A1 Installation producing low voltage electricity integrated in a unit separating gas from air |
| 02/17/2000 | WO2000007967A2 Continuous method and heat pump device for enriching liquid low-concentrated reaction mixtures |
| 02/17/2000 | CA2339494A1 Installation producing low voltage electricity integrated in a unit separating gas from air |
| 02/16/2000 | EP0979808A1 Method for the removal and recovery of mononuclear and polynuclear aromatic co-products produced in a hydrocarbon dehydrogenation reaction zone |
| 02/16/2000 | EP0979806A1 Process for selective enrichment and separation of aroma molecules by adsorption |
| 02/15/2000 | US6024894 Synergistic composition of quinone methide derivative and hydroxylamine compound |
| 02/10/2000 | WO2000006526A1 Recovery of aromatic hydrocarbons using lubricating oil conditioned membranes |
| 02/10/2000 | DE19835542A1 Verfahren zur selektiven Anreicherung und Trennung aromawirksamer Moleküle durch Adsorption Process for the selective enrichment and separation aroma active molecules by adsorption |
| 02/08/2000 | US6022398 Adsorption separation and purification apparatus and process for high purity isobutane production |
| 02/06/2000 | CA2279755A1 Method for the selective concentration and separation of aroma molecules by adsorption |
| 02/03/2000 | DE19833941A1 Recovery of alpha-octene from mixed hydrocarbons produced by Fischer-Tropsch synthesis takes place in e.g. conventional columns in sequence, first under vacuum, then under elevated pressure |
| 02/03/2000 | CA2244489A1 Method for the removal and recovery of mononuclear and polynuclear aromatic co-products produced in a hydrocarbon dehydrogenation reaction zone |
| 02/02/2000 | EP0976756A2 Method for selecting silicon metalloid in the direct process for making organohalosilanes |
| 02/02/2000 | EP0976702A1 Method for inhibiting polymerization of a vinyl compound |
| 02/02/2000 | CN1243115A Polymerization inhibiting method for ethenyl chemical compound |
| 02/02/2000 | CN1243114A Hydrocarbon adsorption dearylating process |
| 02/01/2000 | US6019887 Nitrile selective removal process |
| 02/01/2000 | US6019499 Method of conditioning hydrocarbon liquids and an apparatus for carrying out the method |
| 01/26/2000 | EP0973707A1 Method for eliminating inhibitors of polymerisation of monomer mixtures using an alumina with optimised form |
| 01/26/2000 | EP0973706A1 Method for eliminating inhibitors of polymerisation of monomer mixtures using an optimised alumina |
| 01/26/2000 | CN1048713C Light hydrocarbon separation method capable of raising ethylene recovery |
| 01/26/2000 | CN1048712C Improved precooling for ethylene recovery in dual demethanizer fractional system |
| 01/26/2000 | CN1048711C Method for separating of C2/C3 hydrocarbon compounds in ethene apparatus |
| 01/25/2000 | US6018089 Process for separating linear internal olefins from branched internal olefins |
| 01/25/2000 | US6018086 Process for preparing 2,6-dialkylnaphthalene |
| 01/25/2000 | CA2151414C Selective acetylene hydrogenation |
| 01/19/2000 | CN1241992A Process for selectively separating hydrogen, or both hydrogen and carbon monoxide from olefinic hydrocarbons |
| 01/19/2000 | CN1241991A Recovery of a secondary ethylene stream from an ethylene purification process |
| 01/19/2000 | CN1048479C Process separating method and apparatus for reformeed carbon heavy aromatics |
| 01/19/2000 | CN1048417C Method for separating hydrocarbon from catalytic cracked dry gas |
| 01/18/2000 | US6015933 Process for removing polymeric by-products from acetylene hydrogenation product |
| 01/12/2000 | EP0970030A1 Method of purifying 1,3,5-triisopropylbenzene |
| 01/05/2000 | EP0794933B1 A method for inhibiting premature polymerization of vinyl aromatic monomers |
| 01/05/2000 | CN1048010C Method for recovering ethene from dilute ethene containing gas |
| 01/04/2000 | CA2197802C A method for inhibiting hydrate formation |
| 12/29/1999 | EP0966508A1 Process for purifying material flows |
| 12/29/1999 | EP0840718B1 Treatments for inhibiting vinyl aromatic monomer polymerization |
| 12/29/1999 | CN1239938A Improved chemical absorption process for recovering olefins from cracked gases |
| 12/28/1999 | US6008427 Heat exchanging a hydrocarbon-enriched stream separately, with a mass flow desorption effluent flowing in a reactor containing an isomerization catalyst, adsorption and desorption |
| 12/28/1999 | US6008424 C8 alkylaromatic hydrocarbon production using reversible flow reactive chromatography |
| 12/28/1999 | US6008413 Process for recrystallizing 1,3-bis(aminophenoxy benzene) |
| 12/28/1999 | US6007707 Extractive distillation in an extractive distillation column using selective solvent comprising n-substituted morpholine |
| 12/23/1999 | WO1999065601A1 A mixed phase ethylation system for producing ethylbenzene |
| 12/23/1999 | WO1999065582A1 Cascade reboiling of ethylbenzene/styrene columns |
| 12/22/1999 | EP0964904A1 Olefin purification by adsorption of acetylenics and regeneration of adsorbent |
| 12/22/1999 | EP0964850A1 Natural carotenoid concentrates from plant material and a process for preparing the same |
| 12/21/1999 | US6005157 Cycloparaffin purification from petroleum streams |