Patents
Patents for C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives (13,802)
11/2002
11/28/2002WO2002094435A1 Catalysts containing copper and zinc for the purification of ethylene
11/28/2002WO2002094433A1 Process for activating or regenerating a basic metal oxide catalyst useful for olefin isomerization
11/28/2002WO2002074718A3 Ionic liquids as selective additives for the separation of close-boiling or azeotropic mixtures
11/28/2002US20020177746 Catalytic hydrogenation; distillation separation; reduce acetylene concentration
11/28/2002US20020177743 Diamondoids
11/28/2002US20020174803 Method for removing coumafos from beeswax
11/28/2002DE10125431A1 Verfahren zur Abtrennung von Coumafos aus Bienenwachs A process for separating Coumafos of beeswax
11/28/2002CA2448293A1 Process for activating or regenerating a basic metal oxide catalyst useful for olefin isomerization
11/27/2002EP1260573A1 Method for separating Coumafos from beeswax
11/26/2002US6486375 Process for recovering hydrocarbons from inert gas-hydrocarbon vapor mixtures
11/26/2002US6486369 Process for selective hydrogenation of an olefinic feed stream containing acetylenic and diolefinic impurities
11/21/2002WO2002092542A1 Environmentally safe alkylation of aliphatic and aromatic hydrocarbons with olefins using solid hf-equivalent catalysts
11/21/2002US20020173686 Fixing material for gaseous hydrocarbon and use thereof, and method for solidifying hydrocarbon
11/21/2002US20020173684 Environmentally safe alkylation of aliphatic and aromatic hydrocarbons with olefins using solid HF-equivalent catalysts
11/21/2002CA2446979A1 Environmentally safe alkylation of aliphatic and aromatic hydrocarbons with olefins using solid hf-equivalent catalysts
11/20/2002EP1258690A1 Nitrogen rejection method
11/20/2002CN1094481C Method and device for separating and recovering ethylene from catalytic cracked dry gas
11/19/2002US6483002 Integrated fractional distillation for adsorptive separation process
11/19/2002US6483000 Process for the manufacture in pure form of 1-pentene or an alpha-olefin lower than 1-pentene
11/14/2002WO2002090302A1 A process for the purification and production of a diolefin hydrocarbon stream
11/14/2002WO2002090301A2 Crystallisation process for producing very pure para-xylene
11/14/2002WO2002070440A8 Method and apparatus for the preparation of triptane and/or triptene
11/14/2002US20020169348 Olefin recovery in a polyolefin production process
11/14/2002US20020169346 Production of high-purity isobutene and propylene from hydrocarbon fractions with forur carbon atoms
11/14/2002US20020166336 Hydrocarbon gas processing
11/14/2002DE10213868A1 Verfahren zur Herstellung von gereinigtem Dicyclopentadien und 5-Ethyliden-2-norbornen A process for the preparation of purified dicyclopentadiene and 5-ethylidene-2-norbornene
11/13/2002EP1256559A1 Method and system for purifying styrene feedstock in which a catalyst with a low palladium content is used
11/13/2002EP1255803A1 Process for purifying a liquid hydrocarbon fuel
11/13/2002EP1255717A1 Process for purifying a liquid hydrocarbon product
11/13/2002CN1379007A Method of joint produce pare xylene and metaxylene including two stage separation
11/12/2002US6478851 Separating off the unoxidized olefin from the acetaldehyde reaction mixture with membrane separation process
11/07/2002WO2002088148A1 Isoreticular metal-organic frameworks, process for forming the same, and systematic design of pore size and functionality therein,with application for gas storage
11/07/2002WO2002088055A1 Inhibition of popcorn polymer growth
11/07/2002WO2002088054A1 Method of inhibiting polymerization of aromatic vinyl
11/07/2002US20020165420 By reacting with a Diels-Alder dienophile to provide a fluid comprising a Diels-Alder adduct and monoolefins; and recovering a resulting monoolefin-containing fluid
11/07/2002US20020165419 Process for recovering hydrocarbons from inert gas-hydrocarbon vapor mixtures
11/07/2002CA2446020A1 Isoreticular metal-organic frameworks, process for forming the same, and systematic design of pore size and functionality therein, with application for gas storage
11/06/2002CN1377869A Process for producing purified dicyclic amylic diene and 5-sub ethyl-2-norbornene
11/05/2002US6476284 Method of dehalogenating hydrocarbon containing carbon-carbon double bond
11/05/2002US6475348 Mixture of substances containing compounds with vinyl groups and stabilizers
10/2002
10/30/2002EP0650516B1 Arsine as moderator in the conversion of acetylene
10/30/2002CN1377332A Process for separating linear alpha olefins from a stream containing saturated hydrocarbons, internal olefins, branched olefins and linear alpha olefins
10/30/2002CN1093527C Preparation method of high-purity cyclopentadiene
10/30/2002CN1093526C Catalyst for normal temperature elimination of minute amount of arsenide in hydrocarbon and preparation method thereof
10/29/2002US6472578 Isomerization with adsorptive separation and dividing wall fractional distillation
10/24/2002US20020156334 Process for producing purified dicyclopentadiene and 5-ethylidene-2-norbornene
10/24/2002US20020155522 Beta-elemene, method to prepare the same and uses thereof
10/23/2002CN1376141A Process for separating olefins from saturated compounds
10/22/2002US6469223 Using nickel, nickel oxide or molybdenum oxide as hydrogenation catalyst
10/22/2002US6468399 Distillative separation of partially hydrogenated pre-benzene fraction or partially hydrogenated c5 fraction, where in first fractional distillation low boilers are removed as top product and high boilers are removed as bottom product
10/17/2002WO2002081595A1 Atomized polysulfide used in ethylene steam cracker
10/17/2002WO2002081417A1 Process for improved yields of higher molecular weight olefins from lower molecular weight olefins
10/17/2002WO2002081416A2 Process for selective hydrogenation of alkynes and catalyst therefor
10/17/2002CA2443225A1 Process for selective hydrogenation of alkynes and catalyst therefor
10/17/2002CA2443139A1 Atomized polysulfide used in ethylene steam cracker
10/16/2002EP1248757A1 Inhibition of polymerization of unsaturated monomers
10/16/2002EP0960086B1 Recovery of a secondary ethylene stream from an ethylene purification process
10/16/2002EP0900182B1 Methods for inhibiting the polymerization of ethylenically unsaturated monomers
10/15/2002US6465667 Synthesis and isomerization of 1,2-bis (indenyl) ethanes
10/15/2002US6465391 Selective hydrogenation catalyst and processes therefor and therewith
10/15/2002US6464839 Anticancer; high purity beta-elemene extracted from plants
10/10/2002WO2002079125A1 High-throughput selective hydrogenation process and apparatus
10/10/2002WO2002078839A1 Process for selective hydrogenation of acetylene in an ethylene purification process
10/10/2002US20020147377 Removal impurities with zeolite
10/10/2002US20020147373 Compositions comprising octamantanes and processes for their separation
10/10/2002CA2442942A1 Process for selective hydrogenation of acetylene in an ethylene purification process
10/09/2002EP1247790A1 Process for producing low polymer of ethylene
10/09/2002EP1246695A1 Carbide- and oxycarbide-based compositions, rigid porous structures including the same, and methods of making and using the same
10/08/2002US6462150 Method for isolating olefins from polyolefin plants
10/03/2002US20020143223 Process for co-producing para-xylene and metaxylene, comprising two separation steps
10/03/2002US20020143218 Compositions comprising hexamantanes and processes for their separation
10/03/2002US20020143217 Thermal properties, stability; diamondoids
10/03/2002US20020139295 Compositions comprising undecamantanes and processes for their separation
10/02/2002EP1245552A1 Process for the coproduction of para-xylene and of meta-xylene comprising two separation steps
10/02/2002EP0989968B1 Process for separating linear alpha olefins from 2-branched and/or 3-branched alpha olefins
10/02/2002CN1371893A Technological process and apparatus for preparing enriched methane gas by utilizing refuse marsh gas
10/01/2002US6459006 Selective methylation to para-xylene using fuel syngas
09/2002
09/26/2002WO2002074718A2 Ionic liquids as selective additives for the separation of close-boiling or azeotropic mixtures
09/26/2002WO2002057201A3 Polymerizable higher diamondoid derivatives
09/26/2002US20020137976 Compositions comprising cyclohexamantane
09/26/2002US20020134301 Compositions comprising pentamantanes and processes for their separation
09/25/2002EP1243571A2 Stabilisation of vinyl monomers by compositions based on alkylhydroxylamines
09/25/2002EP1242341A1 Processes for preventing generation of hydrogen halides in an oligomerization product recovery system
09/25/2002EP1242181A1 Carrier catalytic converter for the selective hydrogenation of alkines and dienes
09/25/2002CN1371346A Hydrogenation of benzene to cyclohexane
09/24/2002US6454948 Adsorption
09/19/2002WO2002072510A1 Humidification of hydrocarbon mixtures for use in polymer synthesis
09/19/2002US20020132942 Pretreatment before polymerization
09/19/2002US20020130407 Diamondoid-containing materials in microelectronics
09/18/2002EP1240123A1 Process for preventing polymeric fouling in the treatment of hydrocarbon streams containing olefins
09/18/2002CN1369469A Method for purifying diene material
09/18/2002CN1090997C Multiple metals catalyst for selective hydrogenation dealkynizing
09/12/2002WO2002070440A1 Method and apparatus for the preparation of triptane and/or triptene
09/12/2002US20020128528 Process for treatment of C4 hydrocarbons that comprise butadiene and acetylene compounds that comprise stages for distillation and selective hydrogenation
09/12/2002DE10135585C1 Process for recovering a pure aromatic fraction containing benzene, toluene and xylenes from refinery streams by extractive distillation, comprises processing solvent and process mixtures
09/12/2002DE10110462A1 Cooling system, for dehydration of iso-butane to iso-butylene, has structured circuits for coolant/coolant mixture flows through heat exchanger
09/12/2002CA2439571A1 Method and apparatus for the preparation of triptane and/or triptene
09/11/2002CN1368974A Removal of dissolved silicates from alcohol-silicon direct synthesis solvents
09/11/2002CN1090535C Olefin production method
09/10/2002US6447649 Synergistic mixture of a quinone diimide and hydroquinone
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