| Patents for C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives (13,802) |
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| 07/22/1993 | WO1993013040A1 Process for the removal of green oil from a hydrocarbon stream |
| 07/21/1993 | EP0551352A1 Supercritical fluid extraction restrictor and collection system |
| 07/21/1993 | CN1074433A Process for separation of high-concentration divinylbenzene |
| 07/14/1993 | EP0550754A1 Polymerization inhibitor of vinyl-containing compounds |
| 07/13/1993 | US5227570 Process for separation of ethylbenzene or ethylbenzene/p-xylene from a xylene isomers mixture |
| 07/13/1993 | US5227567 Separation process for the product streams resulting from the dehydrogenation of hydrocarbons |
| 07/06/1993 | US5225072 Extractive distillation |
| 07/06/1993 | US5225050 Rectification using agents such as phenol, 1-nitropropane, and benzyl alcohol |
| 07/06/1993 | US5224350 Using nitrogen rejection units with membrane units and pressure swing absorption |
| 06/30/1993 | EP0549245A1 Para-xylene adsorptive separation with indan or indan derivatives as heavy desorbent |
| 06/29/1993 | US5223589 Lithium-exchaged X zeolite as adsorbent |
| 06/24/1993 | CA2083546A1 Para-xylene adsorptive separation with indan or indan derivatives as heavy desorbent |
| 06/23/1993 | CN1073422A Process for separating ethene by catalytic cracking and dry gas adsorption |
| 06/22/1993 | US5221481 Thin film, high density membranes |
| 06/16/1993 | EP0546740A1 Method of treating natural gas |
| 06/15/1993 | US5220106 Organic non-quaternary clathrate salts for petroleum separation |
| 06/15/1993 | US5220105 Mixing with oxidizer, separating oxidizer |
| 06/15/1993 | US5220104 Washing in the presence of a percarbonate compound solution |
| 06/15/1993 | US5220103 Washing with caustic and water to remove organic acid impurities |
| 06/15/1993 | US5220102 Process for separating normal olefins from non-normal olefins |
| 06/15/1993 | US5220098 Slurrying, injecting slurry at high pressure into vessel for crystallization, adiabatic pressurization, discharging |
| 06/13/1993 | CA2085082A1 Natural gas treating system |
| 06/09/1993 | CN1072922A Process and device for separation of para-xylene from octa-arene by adsorption and crystallization with analogue movable bed |
| 06/08/1993 | CA1318860C Two-stage adsorptive separation process for purifying 2-6-dimethylnaphthalene |
| 06/08/1993 | CA1318859C Separation of indene from feedstreams containing indene in admixture with other substances |
| 06/02/1993 | CN2134998Y Anti-pollution device for preparation of dipterex or acetochloral by dealcololization and distillation |
| 06/02/1993 | CN1072673A Process for removal of carbon monoxide from alpha-olefins and saturated hydrocarbons. |
| 06/01/1993 | US5215629 Heated entry mixture; depressurization; separate feeding of liquid and vapor phases into distillation column at differing entry levels |
| 05/27/1993 | WO1993010080A1 Method for inhibiting foulant formation |
| 05/26/1993 | EP0542794A1 Hydrocarbon treatment. |
| 05/18/1993 | CA1317890C Process for separating a fluid mixture containing hydrocarbons and an organic solvent |
| 05/12/1993 | CN1020587C Process for preparing p-xylene with at least 99.5% pureness |
| 05/11/1993 | US5210333 Benzene removal from hydrocarbon streams |
| 05/04/1993 | US5207909 Plasma polymer membrane (C-2564) |
| 05/04/1993 | CA1317271C Zeolite zk-5 |
| 04/27/1993 | CA1316947C Liquid phase selective hydrofining process of normally gaseous charges containing ethylene, acetylene, and gas |
| 04/21/1993 | EP0537628A2 Process for the removal of carbon monoxide from alphaolefins and saturated hydrocarbons |
| 04/15/1993 | WO1993007237A1 Desulphurisation treatment |
| 04/15/1993 | WO1993007108A1 Process for the selective hydrogenation of aromatic acetylene compounds |
| 04/15/1993 | CA2120929A1 Process for the selective hydrogenation of aromatic acetylene compounds |
| 04/14/1993 | EP0536994A2 Unsaturated polyesters and crosslinked membranes therefrom for aromatics/saturates separation |
| 04/14/1993 | EP0491767A4 Absorbent material and uses thereof |
| 04/13/1993 | US5202521 Recovering high purity ethylene by treating hydrocarbon mixture with solution of copper/I/ hydrocarbon sulfonates in hydrocarbon solkvents in column |
| 04/13/1993 | US5202520 Method for aromatic hydrocarbon recovery |
| 04/13/1993 | US5202514 Using sodium methoxide |
| 04/07/1993 | EP0535592A1 Process for purifying 1,1,3,4,4,6-Hexamethyltetralin |
| 04/07/1993 | EP0535477A1 Process for the recovery of hydrocarbons from a hydrocarbon rich gel |
| 04/07/1993 | EP0484436A4 Selective sorption of dialkylated multinuclear aromatic compounds |
| 04/06/1993 | US5200517 A formed complexes of xylene isomer, ethylbenzene and substituted cyclodextrin; chemical intermediates, water solubility, nonvolatility, stability |
| 04/03/1993 | CA2079653A1 Process for obtaining the hydrocarbon from a hydrocarbon-rich gel |
| 03/31/1993 | EP0534125A2 Process for reprocessing the bottom product of an extractive distillation for recovering pure hydrocarbons |
| 03/31/1993 | EP0534094A2 Process for removing aldehydes and/or vinyl esters from gaseous or liquid process streams |
| 03/31/1993 | CN1070468A Process and apparatus for preparation of carbon monoxide and hydrogen |
| 03/24/1993 | CN1070181A Process for preparing n-decane from liquid wax |
| 03/23/1993 | US5196619 Mercaptans and hydrogen sulfide |
| 03/23/1993 | CA1314689C Process for removing arsine from light olefin-containing hydrocarbon feedstocks |
| 03/17/1993 | EP0532387A1 Process and installation for the production of carbon monoxide and hydrogen |
| 03/17/1993 | EP0532240A2 Composition and method for inhibition of styrene polymerization |
| 03/17/1993 | EP0531807A1 Process for storing and transporting liquid hydrocarbons |
| 03/10/1993 | EP0531191A1 Process and apparatus for the separation of paraxylene in aromatic hydrocarbures with adsorption in simulated moving bed and one crystallisation step |
| 03/10/1993 | EP0530966A2 Method of separating isobutylene from a c-4 hydrocarbon fraction |
| 03/10/1993 | CN1069757A Process and adsorption tower for adsorbing acetylene from rough mixed gas |
| 03/10/1993 | CN1069756A Process and adsorption tower for adsorbing acetylene from rough mixed gas |
| 03/10/1993 | CA2077705A1 Process for the storage and transportation of liquid hydrocarbons |
| 03/04/1993 | CA2077391A1 Method of separating isobutylene from a c-4 hydrocarbon fraction |
| 03/03/1993 | EP0529739A2 Cycloolefin purification method |
| 03/03/1993 | EP0529413A2 Method of separating organic solvents |
| 03/02/1993 | US5191153 Copper(I) carboxylate/boron trifluoride adduct, pressure swing adsorption |
| 03/02/1993 | US5191152 Process for the separation of aromatic hydrocarbons with energy redistribution |
| 03/02/1993 | US5191151 Use of silver-exchanged ionomer membranes for gas separation |
| 03/02/1993 | US5191149 Method of refining liquified petroleum gases into aerosol propellants |
| 03/01/1993 | CA2077053A1 Cycloolefin purification method |
| 02/28/1993 | CA2075868A1 Method of separating organic solvents |
| 02/25/1993 | DE4127988A1 Acetylene absorption from crude ethylene@ and opt. ethane gas mixt. - in plate column with mixing zone for absorbent and liquefied prod. to prevent frothing |
| 02/25/1993 | DE4127987A1 Acetylene absorption from crude ethylene@ and opt. ethane gas mixt. - in plate column with external mixer for absorbent and condensed prod. to prevent frothing |
| 02/24/1993 | EP0528384A2 Process for preparing 2-methylnaphthalene |
| 02/24/1993 | EP0528320A1 Process for the recovery of C2+ or C3+ hydrocarbons |
| 02/18/1993 | WO1992017428A3 Process for upgrading the quality of light ends |
| 02/17/1993 | CN1069021A Process for removing acetone from mixture comprising acetone, methyl acetate and methyl iodide |
| 02/09/1993 | US5185485 Reacting monoolefins with benzene; hydrogen fluoride catalyst; alumina treatment step to remove organic fluoride impurities; improved sulfonation color |
| 02/09/1993 | CA1313507C Isolation of 1,3-butadiene |
| 02/04/1993 | WO1993002028A1 Polymerization inhibitor of vinyl-containing compounds |
| 01/26/1993 | CA1313200C Production of hydrocarbons with a relatively high cetane rating |
| 01/26/1993 | CA1313147C Desulphurisation |
| 01/26/1993 | CA1313025C Low temperature desulphurization process using absorbent of selected water content |
| 01/20/1993 | CN1068100A Process for preparing alkylbenzene |
| 01/19/1993 | US5180496 Unsaturated polyesters and crosslinked membranes therefrom for aromatics/saturates separation |
| 01/19/1993 | US5180474 Method of separation of aromates by extractive distillation |
| 01/13/1993 | EP0522041A1 Removal of nitrogenous components of a hydrocarbon feedstream. |
| 01/12/1993 | CA1312610C Preparation of polymorphically pure terfenadine |
| 01/12/1993 | CA1312552C Recovery of methane from land fill gas |
| 01/07/1993 | WO1993000165A1 Olefin oligomerization process |
| 01/05/1993 | US5177302 Process for separating isomers of disubstituted benzenes and agents to be used therefor |
| 01/05/1993 | US5177301 Method of separating isobutylene from a C-4 hydrocarbon fraction using a heteropoly acid on an inert support |
| 01/05/1993 | US5177300 Lithium exchanged x-zeolite adsorbent |
| 01/05/1993 | US5177299 Adsorption with zeolite x |
| 01/05/1993 | US5177298 Liquid phase adsorption process |
| 01/05/1993 | US5177295 Chromatography, adsorption |
| 01/05/1993 | US5177282 Oligomerization of olefins |
| 01/05/1993 | US5177277 Hydrogenated deodorized polybutene polymers |