Patents
Patents for C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives (13,802)
03/1984
03/07/1984EP0102300A1 Process for eliminating hydrogen sulfide contained in a gaseous mixture
03/06/1984US4435609 Using hydrogen and a group 8 metal catalyst
03/06/1984US4435371 Sulfur removal from a gas stream
03/06/1984US4435191 Process for separating aggressive gases from gas mixtures
03/06/1984CA1163277A1 Separation of monoolefins from other monoolefins
02/1984
02/28/1984US4434317 Separation and recovery of unsaturated hydrocarbons by copper (I) complexes
02/28/1984US4434316 Hydrocyanation of dienes nickel complex catalyst
02/28/1984US4434307 N,n-diarylhydroxylamine, mono-or di-tert-butyl catechol or hydroquinone
02/28/1984CA1162719A1 Process for the removal of acid gases from a gas mixture mainly consisting of methane
02/22/1984EP0101304A2 High efficiency continuous separation process
02/21/1984US4433197 Removing boron trifluoride from coordination compound contaminants in organic liquids
02/21/1984US4433196 Using absorbant either activated bauyite clay and/or crystalline zeolite
02/21/1984US4433195 Separation of trans- and cis-olefins
02/21/1984US4433194 Treating with titanium tetrachloride, adsorption with silica gel, distillation in presence of alkali metal aluminum hydride or borohydride
02/08/1984EP0100074A1 Arrangement for rendering natural gas inert
02/08/1984EP0100073A1 Arrangement for rendering natural gas inert
02/07/1984US4430102 Fractional distillation of C2 /C3 hydrocarbons at optimum pressures
02/07/1984US4430097 Lithium aluminates for separating hydrocarbons
02/01/1984EP0099765A1 Process and plant for fractionating mixtures by elution chromatography with a supercritical fluid phase
01/1984
01/31/1984US4428829 Process for simultaneous separation of aromatics from heavy and light hydrocarbon streams
01/31/1984US4428759 Energy savings
01/25/1984EP0098911A1 Improved process for the preparation of oximatohydridosilanes and aminoxyhydridosilanes
01/24/1984US4427507 Process for the separation of glycol from an electrolyte-containing aqueous solution
01/24/1984US4427420 Pumping method and apparatus
01/24/1984US4427419 Semipermeable membranes prepared from polymers containing pendent sulfone groups
01/18/1984EP0098538A2 Process for the hydrodealkylation of alkyl-aromatic hydrocarbons, process for the hydrodesulfurization of a hydrocarbon gas stream, and catalyst therefor
01/10/1984US4425281 Copper or silver complexes with fluorinated diketones and unsaturated ligands
01/04/1984EP0097381A2 Process for separating an ethylenically unsaturated hydrocarbon from a hydrocarbon mixture; process for separating close boiling liquids; process for inhibiting polymerization of styrene
01/03/1984US4424144 Preparation of binderless 3A adsorbents
12/1983
12/27/1983US4423280 Of non-aromatic compounds in admixture with aromatics
12/27/1983US4423279 Zeolite
12/27/1983US4423278 Removing color from polyphenylated alkane
12/27/1983US4423248 Solvent extraction, rotation
12/27/1983US4422975 Organic salt compositions in extraction processes
12/21/1983EP0096598A1 Process for the preparation of a zeolite, zeolite thus obtained and uses thereof
12/20/1983US4421937 Separation from liquid by compression of interstitial spacings
12/20/1983US4421640 N-(2-hydroxyethyl)-2-pyrrolidone and water
12/20/1983US4421607 Process for extractive distillation of plural hydrocarbon mixtures
12/20/1983US4421535 Countercurrent solvent extraction, multistep flashing, condensatio
12/08/1983WO1983004249A1 Method for the preparation of olefins with lower molecular weigth
12/06/1983US4419365 Deferoxamine salt
12/06/1983US4419349 Plant extracts
12/06/1983US4419226 Recovery of aromatic hydrocarbons and a non-aromatic raffinate stream from a hydrocarbon charge stock
12/06/1983US4419188 Thermally coupled extractive distillation process
12/06/1983US4419114 System and method for converting wellhead gas to liquefied petroleum gases (LPG)
11/1983
11/30/1983EP0095395A1 Process for the hydrodesulphurization and de-oxygenation of a gas containing oxygen and organic compounds of sulphur
11/29/1983CA1157890A1 Purification of hydrocarbons by treatment with polyamines
11/23/1983EP0094699A1 Process for upgrading hydrocarbon streams comprising conjugated diolefins
11/22/1983US4417091 Process for removing fluorine from olefin oligomers
11/22/1983US4417084 Continuous addition of hydrogen sulfide to gaseous effluent
11/22/1983CA1157385A1 Separation process
11/15/1983US4415481 Raffinates
11/09/1983EP0093454A1 A process for the separation of mixtures of aromatic hydrocarbons into single components
11/08/1983US4414083 Removal of diene impurities from alkenes or alkanes over activated magnesium oxide under ultraviolet radiation
11/08/1983US4414004 Removal of condensable aliphatic hydrocarbons and acidic gases from natural gas
11/01/1983CA1156137A1 Distillative separation of acid gases from light hydrocarbons
10/1983
10/25/1983US4411676 Using different towers
10/25/1983CA1155873A1 Process and apparatus for the production of vinyltoluene
10/19/1983EP0091830A2 Separation of gas mixtures by partial condensation
10/18/1983US4410755 Method to purify alpha-methyl styrene prior to catalytic hydrogenation
10/18/1983US4410400 Extractive distilling with reworking of residue
10/18/1983US4410342 Method and apparatus for separating a liquid product from a hydrocarbon-containing gas
10/18/1983US4409819 Method of determining, as a property of an adsorbent, the selectivity for one component of a liquid charge composition with respect to a reference component of said charge composition
10/18/1983CA1155434A1 Use of amine-aluminum chloride adducts as alkylation inhibitors in a ligand-complexing process
10/12/1983EP0091392A1 Sulfur removal from a gas stream
10/12/1983EP0091049A1 Zeolite LZ-133
10/12/1983EP0091048A1 Zeolite LZ-132
10/11/1983US4409421 Etherification with an alcohol, separation, cleavage and distillation
10/11/1983US4409420 Relief system
10/11/1983US4409410 Process for selectively hydrogenating a di-olefin in a mixture of hydrocarbons having at least 4 carbon atoms and comprising an α-olefin
10/11/1983US4409408 Dialkylhydroxylamines, tert-alkyl catechols
10/11/1983US4409102 Process for removing contaminants from a stream of methane gas
10/11/1983CA1154939A1 Process for the purification of nonreacting gases
10/05/1983EP0090569A1 A process for the low polymerization of isobutene
09/1983
09/28/1983EP0089704A2 Process for the separation of a glycol from an electrolyte-containing aqueous solution
09/28/1983EP0089653A2 Process for separating sulfuric acid from the product mixture resulting from the sulfoxidation of paraffins
09/28/1983EP0089375A1 Distillative separation of methane and carbon dioxide.
09/27/1983US4406868 Process and apparatus for removing H2 S from gas streams
09/27/1983US4406867 Process for the purification of non-reacting gases
09/27/1983US4406774 Absorption, methanol
09/27/1983US4406771 Solvent dewaxing waxy hydrocarbon oil distillates using a combination poly di-alkyl fumarate-vinyl acetate copolymer having pendent carbon side chain length of predominantly C22 and polyalkyl(meth-)acrylate polymer dewaxing aid
09/21/1983EP0089252A1 Supported palladium-gold catalyst, its preparation and its use in the selective hydrogenation of diolefinic and/or acetylenic hydrocarbons
09/21/1983EP0089175A1 Semipermeable membranes prepared from polymers containing pendant sulfone groups
09/20/1983US4405563 Turbulenge gas flow produced by confined packer-spacer material in contact tower
09/13/1983US4404413 Method for the prevention or inhibition of popcorn polymer in organic material containing vinyl compounds
09/13/1983US4404124 Alumina with silver distributed throughout and palladium near surfaces
09/13/1983US4404118 Regeneration of adsorbents by low temperature hydrogen stripping
09/13/1983CA1153745A1 Adsorptive separation of aromatic isomers
09/07/1983EP0087658A1 Process for the catalytic rearrangement of iso-alkenes with simultaneous substantial removal by hydrogenation of acetylene compounds and optionally diolefines
09/06/1983US4402832 High efficiency continuous separation process
08/1983
08/31/1983EP0086890A1 Process for the separation of mixtures containing paraffins or paraffins having 6 to 14 C atoms and alcohol, or alcohols having 4 to 8 C atoms
08/30/1983US4401838 Purification of hydrocarbons by treatment with polyamines
08/30/1983US4401559 Process for removing halogenated impurities from olefin oligomers
08/30/1983US4401517 Vapor-liquid extractive distillation with dialkyl sulfone/water combination
08/30/1983US4401515 Extractive distillation
08/30/1983US4401450 Economic recovery of ethylene and/or propylene from low concentration feeds
08/23/1983US4400564 Separation of monoolefins from diolefins
08/17/1983EP0086068A2 Continuous chromatographic separations in a magnetically stabilized fluidized bed
08/17/1983EP0086035A1 Process for the separation of ortho aromatic isomers by selective adsorption
08/16/1983CA1151847A1 Recovery of aromatics from styrene production off-gas