| Patents for C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives (13,802) |
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| 08/31/1994 | CN1091413A Method for seperation of hydrocarbon mixture as function of extractive distillation |
| 08/24/1994 | EP0611733A2 Coating apparatus, method of coating glass, compounds and compositions for coating glass and coated glass substrates |
| 08/16/1994 | US5338455 Process for the separation of components in an organic liquid medium and a semi-permeable composite membrane therefor |
| 08/11/1994 | DE4313121C1 Process for separation and purification of substances by melt crystallisation |
| 08/11/1994 | DE4313101C1 Process for separating and purifying substances by melt crystallisation at high pressures |
| 08/09/1994 | US5336841 Oxygenate removal in MTBE process |
| 08/09/1994 | US5336840 Solvent extraction, heat exchanging, cooling |
| 08/09/1994 | US5336839 Foam-free scrubbing of crude hydrocarbon mixture with absorbing agent |
| 08/09/1994 | US5336838 Prevention of foaming by introducing droplets of acetylene-free liquid C2 stream midway between the bottom feeding of crude mixture and top feeding of absorbent |
| 08/09/1994 | US5336837 Separation of diethylbenzene isomers on silicalite in the presence of high pressure carbon dioxide and propane |
| 08/09/1994 | US5336836 Contacting with suitable pore size zeolite |
| 08/04/1994 | WO1994017109A1 Process for producing fluoropolymer |
| 08/03/1994 | EP0608826A1 Separation of aluminum alkyls from olefins using polyphenylene oxide membrane |
| 08/03/1994 | EP0608227A1 Process for the selective hydrogenation of aromatic acetylene compounds. |
| 08/03/1994 | CN1090315A Method for desulfurization of hydrocarbon |
| 08/02/1994 | US5334774 Distillation using addatives, recycling |
| 08/02/1994 | US5334623 Absorbent material and uses thereof |
| 07/28/1994 | DE3348473C2 Sepn. of meta-substd. and 1,3,5-substd. benzene derivs. |
| 07/27/1994 | CA2111812A1 Separation of aluminum alkyls from olefins using polyphenylene oxide membrane |
| 07/26/1994 | US5332705 Regeneration of acetylene converter catalysts by hydrogen stripping |
| 07/20/1994 | EP0606756A1 Use of disulfonyl methanes for the control of parasites |
| 07/20/1994 | EP0606333A1 Desulphurisation treatment. |
| 07/20/1994 | CN1025501C Novel silane derivs., method for prepn. of same |
| 07/19/1994 | US5329774 Method and apparatus for separating C4 hydrocarbons from a gaseous mixture |
| 07/12/1994 | US5329061 Crystallization process for para-xylene recovery using two-stage recovery section |
| 07/12/1994 | US5329060 Includes isomerization step to increase yield of p-xylene |
| 07/06/1994 | EP0604605A1 Treating disorders by application of insulin-like growth factors and analogs |
| 07/05/1994 | US5326929 Absorption process for hydrogen and ethylene recovery |
| 07/05/1994 | US5326928 In bed of zeolite with organometallic radical grafted into porous structure |
| 07/05/1994 | US5326927 Distillation |
| 07/05/1994 | US5326926 Isomerization with improved RVP and C4 recovery |
| 07/05/1994 | US5326385 Absorption, membrane separation |
| 07/01/1994 | CA2112650A1 Use of disulfonyl methanes for the control of parasites |
| 06/29/1994 | CN1025183C Method of separating and purification for tar-derived anthracene |
| 06/28/1994 | US5324420 Sulfur removal from hydrocarbons with nickel containing catalyst |
| 06/23/1994 | WO1994013757A1 Method of obtaining a polymerizable fraction of recyclable material |
| 06/23/1994 | CA2151602A1 Recovery of a useful polymerizable fraction |
| 06/22/1994 | EP0602302A1 Process for the recovery of a polymerisable fraction |
| 06/15/1994 | CN1087892A Catalytic reduction of phenylacetylene in a styrene stream |
| 06/08/1994 | EP0600406A1 Method of desulfurization of hydrocarbons |
| 05/31/1994 | US5316744 Absorption column with external mixing for absorption of acetylene |
| 05/31/1994 | US5316661 Processes for converting feedstock organic compounds |
| 05/31/1994 | CA1329910C Cryogenic process for simultaneous selective desulfurization and degazolization of a gazeous mixture mainly made of methane and of some h_s and c_ or higher hydrocarbons |
| 05/29/1994 | CA2110223A1 Method of desulfurization of hydrocarbons |
| 05/25/1994 | EP0598254A1 Process for separation of hydrocarbon mixtures by extractive distillation |
| 05/17/1994 | US5312952 Polymerization inhibitor for vinyl aromatics |
| 05/11/1994 | WO1994010265A1 Process for recovering olefins from cat-cracked gas without accumulating undesirable oxides of nitrogen |
| 05/11/1994 | WO1994009878A1 High purity benzene production using extractive distillation |
| 05/11/1994 | EP0596800A1 Method and apparatus for the catalytic dehydrogenation of a paraffinic C2+ charge, including means for removing water from the effluent |
| 05/11/1994 | EP0596470A1 Process for obtaining very pure liquid methane |
| 05/11/1994 | CA2146759A1 High purity benzene production using extractive distillation |
| 05/10/1994 | US5310714 Synthesis of zeolite films bonded to substrates, structures and uses thereof |
| 05/07/1994 | CA2102557A1 Process and apparatus for the catalytic dehydrogenation of a c2+ paraffinic load comprising means for water inhibition in the effluent |
| 04/28/1994 | WO1994008923A1 Process for separating an intake flow consisting essentially of hydrogen, methane and c3/c4 hydrocarbons |
| 04/28/1994 | CA2146433A1 Process for separating an intake flow consisting essentially of hydrogen, methane and c /c hydrocarbons |
| 04/27/1994 | EP0594479A1 Process to reduce the tendency to agglomerate of hydrates in production effluents |
| 04/27/1994 | EP0594341A1 Compositions and methods for inhibiting vinyl aromatic monomer polymerization |
| 04/27/1994 | EP0593873A1 Process for the separation of ethylbenzene/styrene by distillation of a liquid mixture consisting mainly of styrene and ethylbenzene |
| 04/27/1994 | CN1085821A Method for separating hydrocarbon from catalytic cracked dry gas |
| 04/27/1994 | CN1024322C Processing nitrogen-rich, hydrogen-rich and olefin-rich gases with physical solvents |
| 04/22/1994 | CA2099168A1 Compositions and methods for inhibiting styrene polymerization |
| 04/21/1994 | DE4235006A1 Verfahren zum Auftrennen eines im wesentlichen aus Wasserstoff, Methan und C¶3¶/C¶4¶-Kohlenwasserstoffen bestehenden Einsatzstromes A method for separating a substantially consisting of hydrogen, methane and C¶3¶ / C¶4¶-hydrocarbons feed stream |
| 04/19/1994 | US5304700 Separation of methylene chloride from n-pentane by extractive distillation |
| 04/19/1994 | US5304699 Process for the removal of green oil from a hydrocarbon stream |
| 04/12/1994 | US5302771 Adsorption of impurities such as arsine or phosphine on controlled porosity alumina impregnated with compounds from groups 1a or 2a |
| 04/12/1994 | US5302768 Process for decarbromodiphenylalkane predominant product |
| 04/12/1994 | US5302681 Mixing with polymerizable monomer to retard premature free-radical polymerization |
| 04/09/1994 | CA2107936A1 Method and apparatus for separating c4 hydrocarbons from a gaseous mixture |
| 04/06/1994 | EP0590883A1 Benzene removal from hydrocarbon streams |
| 04/06/1994 | CN1084843A Method of producing unsaturated hydrocabons and separating the same from saturated hydrocarbons |
| 04/05/1994 | US5300721 Method for separating 2,6-diethylnaphthalene |
| 04/05/1994 | US5300715 Selective stripping the effluent stream from dehydrogenation zone |
| 03/30/1994 | EP0589112A1 Process for the preparation of a fraction rich in tertiary amyl methyl ether free from olefins and of a paraffinic fraction rich in n-pentane |
| 03/30/1994 | CN1084502A Method for separation and purification of Fuller olefinic carbon 60 |
| 03/29/1994 | CA1328082C Adsorptive separation of para-xylene using diethyltoluene desorbent |
| 03/23/1994 | CN1084155A Inhibiting polymerization of vinyl aromatic monomers |
| 03/22/1994 | US5295356 Dehydrogenation and oxidation of methane in columns, washing, distillation, heating and cooling |
| 03/09/1994 | CN1083417A Alkylation catalyst regeneration |
| 03/08/1994 | US5292992 Process for removing conjugated dienes from alpha-olefins |
| 03/08/1994 | CA1327613C Process for removing impurities from an aromatic stream |
| 03/03/1994 | WO1994004477A1 Selective hydrogenation of dienes and acetylenes in c3 streams |
| 03/01/1994 | US5290888 Process for stabilizing ethylenically unsaturated compounds and stabilized monomer compositions |
| 02/23/1994 | EP0584054A1 Catalytic reduction of phenylacetylene in a styrene stream |
| 02/23/1994 | EP0583957A2 Fluorinated polyolefin membranes for aromatics/saturates separation |
| 02/23/1994 | CN1082458A Selective hydrogen adding catalyst with metal in third main group and eighth group |
| 02/22/1994 | US5288849 Alumina-based adsorbents for the purification of polyolefins |
| 02/22/1994 | US5288370 Using a second solvent for solvent extraction, recycle to the desorption column |
| 02/22/1994 | US5287703 Cooling; phase separating; rectifying; stripping feed gas stream; refrigerant provided from a single loop vapor recompression refrigerator employing a mixed refrigerant |
| 02/16/1994 | EP0582901A1 Process for the removal of acetaldehyde from hydrocarbons |
| 02/16/1994 | EP0416010B1 Process for hydrotreating olefinic distillate |
| 02/15/1994 | CA2100643A1 Fluorinated polyolefin membranes for aromatics/saturates separation |
| 02/09/1994 | EP0582507A1 Process to reduce the tendency to agglomerate of hydrates in production effluents |
| 02/09/1994 | EP0581831A1 Control of oxygen level in feed for improved aromatics/non-aromatics pervaporation |
| 02/09/1994 | CN1081664A Selective hydrogenation of unsaturated hydrocarbons |
| 02/09/1994 | CN1023685C Energy-saving process for separation of light hy drocarbons |
| 02/08/1994 | US5284992 Process and apparatus for the separation of p-xylene in C8 aromatic hydrocarbons with a simulated moving bed absorption and a crystallization |
| 02/08/1994 | US5284552 Azeotropic distillation with ethylene glycol to remove nitrogen-containing compounds; hydrodesulfurization using a supported hydrogenation catalyst of molybdenum, cobalt and/or nickel |
| 02/08/1994 | CA2016282C Mixed refrigerant/expander process for the recovery of c_+ hydrocarbons |
| 02/02/1994 | EP0581737A2 Inhibiting polymerization of vinyl aromatic monomers |
| 02/02/1994 | EP0580736A1 Process for upgrading the quality of light ends. |