| Patents for C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives (13,802) |
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| 04/22/1999 | WO1999019662A1 Gas hydrate storage reservoir |
| 04/22/1999 | WO1999019283A1 Gas hydrate regassification method and apparatus using steam or other heated gas or liquid |
| 04/22/1999 | WO1999019282A1 Method and apparatus for producing gas hydrates |
| 04/22/1999 | WO1999019278A1 Process for preparing 2,6-dialkylnaphthalene |
| 04/22/1999 | DE19745950A1 Drug carrier particle for site specific drug delivery, especially to CNS |
| 04/22/1999 | DE19745806A1 Processing off-gas from oxidation of olefin to carbonyl compounds |
| 04/22/1999 | CA2306461A1 Method and apparatus for producing gas hydrates |
| 04/22/1999 | CA2306150A1 Gas hydrate storage reservoir |
| 04/22/1999 | CA2306065A1 Gas hydrate regassification method and apparatus using steam or other heated gas or liquid |
| 04/20/1999 | US5895769 In-situ crystallized zeolite containing composition (LAI-ISC) |
| 04/14/1999 | EP0908508A1 Process for the removal of water, CO2, ethane and C3+ hydrocarbons from a gas stream |
| 04/14/1999 | EP0908437A1 Method for separating alkylnaphthalene |
| 04/14/1999 | EP0908235A2 Bimatallic catalyst for the simultaneous selective hydrogenation of diolefins and nitriles, method of making same and process for the hydrogenation of diolefins and nitriles |
| 04/14/1999 | EP0842241A4 Improved process for selective hydrogenation of highly unsaturated compounds and isomerization of olefins in hydrocarbon streams |
| 04/14/1999 | EP0817766B1 Use of naturally acid smectites to remove olefines from aromatics or aromatic mixtures |
| 04/14/1999 | CN1214035A Hydrocarbon separation |
| 04/07/1999 | EP0906257A1 Mixtures containing monomers and stabilizers |
| 04/07/1999 | EP0906256A1 Unsaturated hydrocarbon separation and recovery process |
| 04/06/1999 | CA2041874C Separation of ethane from methane by pressure swing adsorption |
| 04/01/1999 | WO1999015603A1 Composition preventing polymerisation of ethylenically unsaturated monomers |
| 04/01/1999 | WO1999015485A1 Selective hydrogenation |
| 03/31/1999 | EP0905111A1 Removal of polynuclear aromatic compounds from a vapor effluent from a dehydrogenation reaction zone |
| 03/31/1999 | EP0734365B1 Production of polymerization grade dicyclopentadiene |
| 03/31/1999 | CN1212677A Processf or preparing parasylene |
| 03/31/1999 | CN1212676A Process for conversion of ethylbenzene |
| 03/31/1999 | CN1212250A Method for preparing industrial phenanthrene |
| 03/30/1999 | US5889187 Catalytic hydrogenation process and a catalyst for use in the process |
| 03/30/1999 | US5888356 Vacuum distilling compound with exclusion of air in presence of 4-acetylamino-2,2,6,6-tetramethylpiperidine-n-oxyl inhibitor |
| 03/30/1999 | US5888355 Hydrogenation, isomerization catalyst |
| 03/30/1999 | CA2001645C Adsorptive separation of para-xylene using a tetralin desorbent |
| 03/29/1999 | CA2217225A1 Removal of polynuclear aromatic compounds from a vapor effluent from a dehydrogenation reaction zone |
| 03/24/1999 | EP0903331A1 Process for inhibiting polymerization during distillation of vinyl aromatics |
| 03/24/1999 | EP0902795A1 Method and products to absorb oil and organic solvents from water and from sea |
| 03/24/1999 | CN1211968A Mixture containing monomers and stabilizers |
| 03/23/1999 | US5886241 Methods and compositions for inhibiting the polymerization of ethylenically unsaturated monomers |
| 03/23/1999 | US5884777 Simulated moving bed absorption separation process |
| 03/23/1999 | US5884504 Adding stages to rectification section to increase separation of ethane and ethylene from heavier hydrocarbon components |
| 03/23/1999 | CA2001537C Process for producing alpha olefins |
| 03/17/1999 | CN1210845A Process for removal of acid compounds from hydrocarbon stream |
| 03/17/1999 | CA2246942A1 Process for inhibiting polymerization during distillation of vinyl aromatics |
| 03/16/1999 | CA2246915A1 Process for the removal of water, co2, ethane and c3+ hydrocarbons from a gas stream |
| 03/11/1999 | WO1999011740A1 Aromatics separation process and method of retrofitting existing equipment for same |
| 03/11/1999 | CA2302681A1 Aromatics separation process and method of retrofitting existing equipment for same |
| 03/10/1999 | EP0900182A1 Methods for inhibiting the polymerization of ethylenically unsaturated monomers |
| 03/04/1999 | WO1999010096A1 Agglomerated zeolite adsorbents, method for obtaining them and use for adsorbing paraxylene from aromatic c8 cuts fractions |
| 03/03/1999 | EP0882231A4 Recovery of taxanes from conifers |
| 03/02/1999 | US5877385 Process including extractive distillation and/or dehydrogenation to produce styrene from petroleum feedstock including ethyl-benzene/xylene mixtures |
| 03/02/1999 | US5877384 Heating, condensation |
| 03/02/1999 | US5877378 Process for selective utilization of alpha-olefins in mixtures containing non-alpha-olefins |
| 03/02/1999 | US5877373 C8 alkylaromatic hydrocarbon production using reversible flow reactive chromatography |
| 03/02/1999 | US5877365 Process and plant for the conversion of olefinic C4 cuts to polyisobutene and to propylene |
| 03/02/1999 | US5877363 Process for concurrent selective hydrogenation of acetylenes and 1,2 butadine in hydrocarbon streams |
| 02/28/1999 | CA2214305A1 Process for the separation of aromatic hydrocarbons from a mixed feed stock |
| 02/24/1999 | CN1208727A Continuous rectifying tech for crude naphthalene fraction from coke prond. plant |
| 02/18/1999 | WO1999007656A2 Improved processes for making surfactants via adsorptive separation and products thereof |
| 02/16/1999 | US5872252 Compression of ethylenically unsaturated monomers |
| 02/11/1999 | DE19734253A1 Thermally self-supporting process eliminating organic acids from hydrocarbon stream |
| 02/10/1999 | EP0895977A1 Process for reducing the residual olefin content of an alkylation reaction product |
| 02/09/1999 | US5869717 Adding a nitroso compound such as n-nitroso-n,n'-di-3-pentyl-p-phenylenediamine. |
| 02/06/1999 | CA2238228A1 Process for reducing the residual olefin content of an alkylation reaction product |
| 02/04/1999 | WO1999005083A1 Apparatus and process for catalytic distillations |
| 02/03/1999 | EP0809619B1 Method for inhibiting hydrate formation |
| 02/02/1999 | US5866750 Method for removal of metal alkoxide compounds from liquid hydrocarbon |
| 02/02/1999 | US5866740 Production of para-xylene from an effluent from paraselective toluene disproportionation using a crystallization process combined with simulated moving bed adsorption |
| 02/02/1999 | US5866738 The aromatic hydrocarbon, before the alkylation, is: a) treated to eliminate the oxygen dissolved therein; and/or b) percolated through a fixed bed consisting of particles of alumina modified with silver. |
| 02/02/1999 | US5866734 Hydrogenation process |
| 02/02/1999 | US5865958 Method for separating cyclohexene |
| 01/27/1999 | EP0893487A1 Production of benzene, toluene and xylene (BTX) from FCC naphtha |
| 01/27/1999 | EP0853593A4 Synthetic porous crystalline mcm-61, its synthesis and use |
| 01/27/1999 | CN1206393A Methods for inhibiting polymerization of ethylenically unsaturated monomers |
| 01/26/1999 | US5863420 Unsaturated hydrocarbon separation and recovery process |
| 01/26/1999 | US5863315 N-paraffins are adsorbed at high pressure and desorbed at a lower pressure by means of pressure reduction combined with stripping with gas stream rich in isoparaffins |
| 01/26/1999 | CA2130861C Process for the production of alkene polymers |
| 01/20/1999 | EP0721557B1 thermodynamic separation |
| 01/20/1999 | EP0579776B1 Olefin oligomerization process |
| 01/14/1999 | WO1999001706A1 Process for liquefying a natural gas stream containing at least one freezable component |
| 01/14/1999 | WO1999001524A1 Removal of benzene from organic streams using cyclodextrins |
| 01/14/1999 | WO1999001411A1 Method and device for obtaining isobutenes from conjugated hydrocarbons |
| 01/14/1999 | WO1999001410A1 Methods for inhibiting the polymerization of vinyl monomers |
| 01/14/1999 | CA2292762A1 Removal of benzene from organic streams using cyclodextrins |
| 01/13/1999 | EP0889868A1 Compositions and methods for inhibiting vinyl aromatic monomer polymerization |
| 01/13/1999 | EP0826021A4 Process for the removal of mercaptans and hydrogen sulfide from hydrocarbon streams |
| 01/13/1999 | EP0746596B1 Process for producing thermally cracked products from hydrocarbons |
| 01/13/1999 | CN1041628C Method for separating sulfone from hydrocarbon stream having small concentration of sulfone |
| 01/12/1999 | US5859304 Chemical absorption process for recovering olefins from cracked gases |
| 01/12/1999 | US5859302 Processes employing reusable aluminum catalysts |
| 01/12/1999 | US5859280 Adding alpha-tocopherol inhibits polymerization during processing, storage, transportation; can be mixed with hydroquinone for synergistic inhibition |
| 01/07/1999 | EP0889015A1 Process for the removal of acid compounds from a hydrocarbon stream |
| 01/07/1999 | DE19728732A1 Verfahren zur Gewinnung von Isobuten aus solches enthaltenden C¶4¶-Kohlenwasserstoffgemischen Process for obtaining isobutene from containing such C¶4¶-hydrocarbon mixtures |
| 01/06/1999 | CN1041513C Composition of vinyl aromatic monomers and its inhibiting polymerization process |
| 01/05/1999 | US5856602 Concurrent distillation, hydrogenation |
| 01/05/1999 | US5856262 Supported palladium catalyst for selective catalytic hydrogenation of acetylene in hydrocarbonaceous streams |
| 12/30/1998 | WO1998059016A1 Composition and method for inhibiting radical polymerisation of ethylenically unsaturated aromatic monomers |
| 12/30/1998 | EP0886675A1 Polymerization inhibitor composition |
| 12/30/1998 | EP0812307B1 Method for inhibiting hydrate formation |
| 12/29/1998 | US5853551 Process for the separation of alpha-olefins by distillation of an effluent comprising ethylene and 1-butene |
| 12/24/1998 | DE19725519A1 Stoffmischung, enthaltend vinylgruppenhaltige Verbindungen und Stabilisatoren A composition comprising vinyl-containing compounds and stabilizers |
| 12/23/1998 | WO1998058038A1 Mixture of substances containing compounds with vinyl groups and stabilizers |
| 12/23/1998 | WO1998057911A1 Process for separating linear alpha olefins from 2-branched and/or 3-branched alpha olefins |
| 12/23/1998 | CN1202476A Process for regenerating heat conducting oil hydrogenated terphenyl |