Patents for C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives (13,802) |
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10/02/1996 | DE19512134A1 Katalysator zur Entfernung von Olefinen aus Aromaten oder Aromatengemischen Catalyst for the removal of olefins from aromatics or aromatic mixtures |
10/02/1996 | CN1132192A Technique for prepn. of high pureness meta-dimethyl benzene |
10/02/1996 | CN1032915C Improved normal paraffin adsorptive separation process using non-normal hydrocarbon pre-pulse stream |
09/25/1996 | EP0733608A1 Transalkylation of polyalkylaromatic hydrocarbons |
09/25/1996 | EP0647157B1 Regeneration of acetylene converter catalysts by hydrogen stripping |
09/25/1996 | CN1131654A Recovery and usage method for main component of cyclohexane oxidation by-product-X oil |
09/24/1996 | CA2033219C Process for synthesizing low chlorine benzyltoluene and dibenzyltoluene |
09/22/1996 | CA2172207A1 Transalkylation of polyalkylaromatic hydrocarbons |
09/17/1996 | US5557030 Process for rejecting heavy hydrocarbons from light hydrocarbons gases |
09/12/1996 | WO1996027634A1 Absorption process for rejection of reactor byproducts and recovery of monomers from waste gas streams in olefin polymerization processes |
09/12/1996 | WO1996027580A1 Hydrogenation of unsaturated cyclic compounds |
09/11/1996 | EP0731073A2 Co-cracking of BPA and phenol process tabs |
09/04/1996 | EP0729982A2 Process for the purification of non-reacted propylene in the production of polypropylene |
09/04/1996 | CN1130167A A procedure for the production of a preproduct containing aromatic hydrocarbons for the generation of aromatics from coking plant crude benzene |
09/03/1996 | US5551972 Absorption process without external solvent |
08/29/1996 | WO1996026170A1 Method for separating para-xylene by preprocessing using selective hydrogenation and activated earth |
08/28/1996 | EP0728284A1 Cryogenic separation |
08/21/1996 | EP0727405A1 Method for separating sulfone from a hydrocarbon stream having a small concentration of sulfone |
08/21/1996 | CN1129214A Method for separating sulfone from a hydrocarbon stream having a small concentration of sulfone |
08/20/1996 | US5547407 Boat motor trim and tilt assembly |
08/20/1996 | US5546764 Using heavier hydrocarbons from exhaust gas stream as absorption solvents in stripping, then distillation yields ethylene in overheads and heavy hydrocarbons as bottoms, using no external solvents |
08/14/1996 | EP0726241A1 Process for splitting tertiary butyl alcohol in a reaction and distillation column |
08/14/1996 | CN1032532C Method for purification of low carbon alpha olefins |
08/13/1996 | US5545786 Method for inhibiting premature polymerization of vinyl aromatic monomers |
08/13/1996 | US5545782 Using a stable hindered nitroxyl compound |
08/12/1996 | CA2169225A1 Process for cracking tertiary butyl alcohol in a reaction distillation column |
08/01/1996 | DE19502857A1 Acetylene prodn. with high selectivity and reduced energy consumption |
07/30/1996 | US5540861 A reaction product of a phenol with sulfuric acid and nitric acid |
07/25/1996 | WO1996022266A1 Hydroformylation of a multi-component feed stream |
07/25/1996 | WO1996022262A1 Method for producing para-xylene by high-temperature crystallisation in at least one stage and partial crystal fusion |
07/25/1996 | WO1996022260A2 Separation of linear from branched hydrocarbons |
07/25/1996 | DE19600954A1 Composite membrane with increased permeability for selective removal of acidic gas |
07/25/1996 | CA2209473A1 Hydroformylation of a multi-component feed stream |
07/24/1996 | EP0722953A1 Recovery of hydrocarbons from polyalkene product purge gas |
07/24/1996 | EP0722776A1 Alkyne hydrogenation process |
07/24/1996 | CN1032371C Hydrocarbon oil compositions |
07/18/1996 | WO1996021745A1 Regenerative mercury removal process |
07/17/1996 | EP0721557A1 Improved thermodynamic separation |
07/17/1996 | EP0539433B1 Process for adsorbing sulfur species from propylene/propane using regenerable adsorbent |
07/11/1996 | WO1996020908A1 Paraxylene separation process comprising at least two high temperature crystallization stages |
07/11/1996 | WO1996020907A1 Method for the separation of paraxylene involving at least one high temperature crystallization stage and at least one clay treatment located upstream of the adsorption area |
07/09/1996 | US5533437 Recovery of hydrocarbons from polyalkene product purge gas |
06/26/1996 | EP0718269A1 Integrated process for the production of ter-amyl alkyl ethers |
06/25/1996 | US5530172 Contacting with simulated moving bed acting as isomerization catalyst and adsorbent for alkane |
06/25/1996 | US5530165 Using a hydrocarbon additive stream to alter compositions of overhead and bottoms products of etherification effluent fractionator; reduces alcohol concentration in overhead |
06/25/1996 | CA2025618C Process for isolating xylene isomer(s) and/or ethylbenzene and inclusion-complexing agent for use in isolation of xylene isomer(s) and/or ethylbenzene |
06/20/1996 | WO1996018704A1 Process for the removal of mercaptans and hydrogen sulfide from hydrocarbon streams |
06/19/1996 | EP0717094A1 Process for the recuperation of solid paraffins from highly polluted poyolefinic wastes |
06/13/1996 | CA2164783A1 Integrated process for the production of ter-amyl alkyl ethers |
06/12/1996 | EP0715612A1 Isolation of high purity diamondoid, fractions and components |
06/12/1996 | EP0715611A1 Dehydrogenation using dehydrogenation catalyst and polymer-porous solid composite membrane |
06/12/1996 | EP0715610A1 Isoparaffin-olefin alkylation |
06/12/1996 | EP0715609A1 Isoparaffin-olefin alkylation |
06/12/1996 | CN1124241A Improved adsorptive separation of metalxylene from aromatic hydrocarbons |
06/12/1996 | CN1124240A Method and apparatus for adjusting process for seperating arene isomer with 8-10 carbon atoms |
06/12/1996 | CN1032005C Silicane derivatives, preparation containing derivatives and use as pesticide thereof |
06/06/1996 | WO1996016921A1 A method for inhibiting premature polymerization of vinyl aromatic monomers |
06/05/1996 | EP0714969A2 Inhibition of fouling or coke formation in hydrocarbon processing equipment |
06/05/1996 | EP0485393B1 Membrane for extracting unsaturated hydrocarbons and process for obtaining it |
06/04/1996 | US5523512 Separation of low molecular weight olefins from paraffins by complexing with a cuprous salt and high molecular weight olefin in an inert solvent |
06/04/1996 | US5523326 Pressure swing adsorption |
06/04/1996 | US5523271 Active reduced metal impregnated with metal oxide-zeolite support containing carbon |
05/29/1996 | EP0608227B1 Process for the selective hydrogenation of aromatic acetylene compounds |
05/28/1996 | US5520724 Process for the recovery of low molecular weight C2+ hydrocarbons from a cracking gas |
05/22/1996 | EP0712825A1 Improved adsorptive separation of metaxylene from aromatic hydrocarbons |
05/21/1996 | US5518527 Method for recovering ethylene from vent gas from ethylene oxide plant vent gas |
05/15/1996 | DE4430148A1 Sepn. of pure solvent from fluid mixt. |
05/15/1996 | CN1122320A Method and apparatus for extracting alpha-methyl naphthalene and beta-methylnaphthalene |
05/14/1996 | US5516965 Absorbing acetylene and oxygenated hydrocarbons in solvent; stripping, concentrating |
05/14/1996 | US5516955 Catalytic distillation to produce orthoxylene and paraxylene |
05/08/1996 | EP0710222A1 Method for inhibiting the polymerization of vinyl aromatics |
05/08/1996 | CN1121911A Method for separating m-xylene from p-xylene |
05/02/1996 | WO1996012542A1 An improved simulated moving bed adsorption separation process |
05/01/1996 | EP0687248A4 Crystallization of 2,6-dimethylnaphthalene |
05/01/1996 | CN1121501A Method for adding hydrogen with catalysis and catalyst which can be used in same |
04/24/1996 | EP0708167A1 Process for the production of a precursor product containing aromatic hydrocarbons for the recuperation of aromatics from raw coking benzene |
04/24/1996 | EP0708089A1 Production of tertiary butyl hydroperoxide |
04/24/1996 | EP0708072A1 Process for obtaining pure benzene and pure toluene |
04/24/1996 | EP0708070A1 Process for the separation of paraffins mixed with olefins |
04/24/1996 | CN1121103A Method of refining anthracene, phenanthrene and carbazole |
04/23/1996 | US5510563 Alkenylation, cyclization, dehydrogenation, and isomerization |
04/23/1996 | US5510562 Process for separating mixtures of aromatic C8 hydrocarbons |
04/23/1996 | US5510556 Reacting trialkylaluminum and ethylene to produce mixture of normal alpha-olefins and tri/higher/alkylaluminum compounds, transalkylating in presence of cobalt-containing catalyst, reacting with aqueous acid or caustic to remove catalyst |
04/23/1996 | US5510551 Separating carrot juice into carotenoid containing liquid fraction and pulp fraction, precipitating liquid fraction with solvent free precipitating agent like potassium hydorxide and magnesium chloride, separating rich portion |
04/23/1996 | US5510550 Using catalyst comprising palladium, silver, inorganic support, reducing agent, alkali metal compound, nonreducing liquid component |
04/23/1996 | US5510547 Adding mixture of a hydroxylamine and a phenylenediamine to vinyl aromatic monomer in oxygen-free processing system |
04/18/1996 | WO1996011175A1 Process for manufacturing ethylbenzene or cumene |
04/18/1996 | CA2201783A1 Process for manufacturing ethylbenzene or cumene |
04/17/1996 | EP0706985A1 Production of a high purity ether product |
04/17/1996 | EP0688308A4 Benzene reduction in gasoline by alkylation with higher olefins |
04/17/1996 | CN1120528A Production of a high purity ether product |
04/16/1996 | US5507919 Apparatus for the thermal and catalytic defluorination of alkylate |
04/10/1996 | EP0705811A1 Process for recovering ethylene and propylene |
04/10/1996 | EP0705810A2 Process for purification of starting materials for metal catalysed reactions and a purification reagent to be used therefor |
04/10/1996 | EP0569502B1 Inhibiting popcorn polymer formation with alkyl halides |
04/10/1996 | EP0393029B2 Processing nitrogen-rich, hydrogen-rich, and olefin-rich gases with physical solvents |
04/10/1996 | CN1120036A N-substituting group-4-substituted benzyl-5-alkyl-5-substituted benzyl-pyrrolidone-2, and its intermediate, its synthetic method and its appliance |
04/10/1996 | CN1120035A Separation method of C+10 heavy aromatic hydrocarbon |
04/10/1996 | CN1031505C Process for separating ethene by calalytic cracking and dry gas adsorption |
04/09/1996 | US5505048 Cooling, phase separation of liquids and gases; isentropic expansion |