Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives
Patents for C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives (13,802)
10/2003
10/22/2003CN1450033A Adiabatic flash method for styrene tar oil
10/22/2003CN1125009C Process for separating high-purity meta-tritoluene by reforming diarylhydrocarbon
10/22/2003CN1125008C Process for recovering arylhydrocarbon by combination of extracting distillation with liquid-liquid extraction
10/16/2003WO2003084661A1 Treatment of acid catalysts with nitrogen compounds
10/16/2003WO2003062171A3 Method for the separation of acids from chemical reaction mixtures by means of ionic fluids
10/16/2003WO2002081416A3 Process for selective hydrogenation of alkynes and catalyst therefor
10/16/2003WO2002058139A3 Diamondoid-containing materials in microelectronics
10/16/2003US20030192342 For ethylene plant; comprises closed loop tertiary refrigerant system containing methane, ethylene and propylene
10/16/2003US20030192341 Olefin plant refrigeration system
10/15/2003EP1351906A1 Compositions comprising higher diamondoids and processes for their separation
10/15/2003EP1351905A2 Polymerizable higher diamondoid derivatives
10/15/2003EP1351903A1 A process to remove reaction by-products from a selective hydrogenation effluent stream
10/15/2003EP1144350B1 Selective hydrogenation process and catalyst therefor
10/15/2003CN1448213A Adsorbent for adsorption stripping dimethyl benzene and its preparing process
10/14/2003US6632972 Process for the selective preparation of DIB from an i-butene-containing C4 stream
10/14/2003US6632766 Removal impurities with zeolite
10/09/2003WO2003083015A2 A process for the removal of arsine from a hydrocarbon stream with an adsorbent
10/09/2003WO2003082783A1 Process for producing selected phenyl-alkanes with adsorptive separation step
10/09/2003CA2481305A1 A process for the removal of arsine from a hydrocarbon stream with an adsorbent
10/02/2003WO2003080767A1 A process for obtaining high purity phenanthrene and a system thereof
10/02/2003WO2003079816A1 A process for the preparation of tomato extracts with high content in lycopene
10/02/2003WO2003030448A3 Communications node for circuit-switched and packet-switched services
10/02/2003US20030187317 Acid and other oxygenate reduction in an olefin containing feed stream
10/02/2003US20030187316 Isomerisation process
10/02/2003US20030187311 Drying material containing hydrocarbon and/or polymer, reacting dried material with catalyst for a time sufficient to separate hydrocarbon and/or polymer from dried material
10/02/2003US20030187299 Method for producing acrolein and/or acrylic acid
10/02/2003US20030183499 System and a process for obtaining high purity phenanthrene from phenanthrene enriched coal tar fraction
10/01/2003CN1445206A Method for purifying and refining piperyene
10/01/2003CN1445205A Pressure swing adsorption method for distilling olefin or ethane from gas mixture
09/2003
09/30/2003US6627783 Pressure swing adsorption process for separating para-xylene and ethylbenzene from mixed C8 aromatics
09/30/2003US6627778 Catalytic hydrogenation of diolefins
09/30/2003US6627578 Catalyst for selective hydrogenation
09/30/2003US6627047 Method for preventing polymerization in thin-film type evaporating device
09/29/2003CA2382763A1 Method of separating and converting hydrocarbon composites and polymer materials
09/25/2003WO2003078029A1 Heavy hydrocarbon recovery from pressure swing adsorption unit tail gas
09/25/2003WO2003016252A3 Alkyl aromatic aldehydes
09/25/2003US20030181772 Method and device for treating a c4 fraction
09/23/2003US6623659 Separation of olefins from paraffins using ionic liquid solutions
09/18/2003WO2003076369A1 A reactive distillation process for the alkylation of aromatic hydrocarbons
09/18/2003WO2003076053A2 A separation method and separation apparatus of isotopes from gaseous substances
09/18/2003CA2482337A1 A reactive distillation process for the alkylation of aromatic hydrocarbons
09/18/2003CA2478207A1 A separation method and separation apparatus of isotopes from gaseous substances
09/17/2003CN1121364C Process for separating linear alpha olefins from 2-branched and/or 3-branched alpha olefins
09/16/2003US6620984 Process for the removal of carbonyl compounds in isomerization feed streams
09/16/2003US6620091 With an aqueous stream; natural gas
09/16/2003CA2052685C Purification of styrene monomer by multi-point injection of hydrogen over reduction catalyst
09/12/2003WO2003074452A1 Production of alkyl aromatic compounds
09/11/2003WO2003074465A1 Process for the production of an alkenyl carboxylate or an alkyl carboxylate
09/11/2003WO2003074454A1 Alkene separation process
09/11/2003US20030171630 Continuous, pressurized, reactive distillation process employing a solid alkylation catalyst system.
09/11/2003US20030171629 Process for selective hydrogenation of alkynes and catalyst therefor
09/10/2003EP1154974B1 Method for the continuous recovery of styrene from a mixture containing same
09/10/2003EP1023052B1 Medicament excipient particles for tissue-specific application of a medicament
09/10/2003CN2571470Y Double-stage devulcanizer for marsh gas
09/10/2003CN1441766A Method for producing acrolein and/or acrylic acid
09/10/2003CN1441759A Pressure swing adsorption process for separating para-xylene and ethylbenzene from mixed C8
09/09/2003US6617483 Extractive distillation for separating a mixture of hydrocarbons with an alkylene glycol and a compatibility agent having polar parameters and hydrogen bonding parameters that result in improved separation
09/09/2003US6617482 Removable of polar contaminants from aromatic feedstocks
09/09/2003US6617481 By paraffin adsorptive separation followed by paraffin dehydrogenation and then by alkylation of a phenyl compound by a lightly branched olefin; silicalite adsorbent; C5-C8 paraffin desorbent
09/09/2003US6616831 Recovering aromatic compounds via parallel operation of a hybrid extractive distillation/liquid-liquid extractor operation
09/03/2003EP1339658A1 Method and device for obtaining 1,3 pure butadiene from 1,3 raw butadiene by distillation
09/03/2003EP1032798B1 Method and installation for separating off c2 - or c2+ - hydrocarbons
09/03/2003CN1440426A Method of reducing formation of precipitates in solvent recovery system
09/02/2003US6613302 UZM-5, UZM-5P and UZM-6: crystalline aluminosilicate zeolites and processes using the same
08/2003
08/28/2003WO2003070672A1 Production of olefins
08/28/2003WO2003070667A1 Method for separating substances by extraction or by washing them with ionic liquids
08/28/2003WO2003070357A1 Treatment of hydrogen/hydrocarbon mixtures on adsorbents regenerated at high pressure
08/28/2003WO2003019068A3 Dewatering device and method for gas hydrate slurrys
08/28/2003WO2003014169A3 Optimization of heat removal in a gas-phase fluidized-bed process
08/28/2003US20030163009 Adding styrene polymerization inhibitor compound to flowstream which is processed through a phenylacetylene reactor system to reduce phenylacetylene in flowstream by hydrogenating it
08/28/2003CA2475830A1 Treatment of hydrogen/hydrocarbon mixtures on adsorbents regenerated at high pressure
08/28/2003CA2474656A1 Production of olefins
08/27/2003EP1337465A1 Uzm-5, uzm-5p and uzm-6; crystalline aluminosilicate zeolites and processes using the same
08/27/2003EP0912471B1 Polymerisation inhibitor
08/27/2003CN1438978A Cry stallisation process for producing very pure para-xylene
08/27/2003CN1438206A Method for purifying phenylethylene monomer before polymerization
08/26/2003US6610124 Heavy hydrocarbon recovery from pressure swing adsorption unit tail gas
08/26/2003US6609393 Cooling; rectifying, heat exchanging, recycling, withdrawing,vaporizing, compressing and liquefying
08/21/2003US20030158458 System and method for recovery of C2+ hydrocarbons contained in liquefied natural gas
08/20/2003CN1437571A A method of removing polymer from and acid gas treating system
08/20/2003CN1118446C Process for removing indole from beta-methyl naphthalene
08/20/2003CN1118320C Adsorbent, its preparation process and application in separating dimethyl benzene
08/14/2003US20030150795 Polymer blends and methods of separation using the same
08/13/2003EP1334959A2 Process for purifying styrene monomer feedstock prior to polymerization
08/13/2003EP1334079A2 Adsorptive separation process for recovery of para-xylene
08/12/2003CA2030596C Process of removing and concentrating desired molecules from solutions
08/07/2003WO2003064040A1 Supported catalyst treatment
08/07/2003WO2003064033A1 Regeneration of supported catalysts for carbon monoxide hydrogenation
08/07/2003WO2003064015A2 Polymer blends and methods of separation using the same
08/07/2003US20030149324 Purification by adsorbing with a molecular sieve, prior alkylation in presence of acid catalysts; pore size catalysts, catalyst selectivity
08/07/2003US20030149313 Phosphorous removal and diene removal, when using diene sensitive catalyst, during conversion of olefins to branched primary alcohols
08/07/2003CA2474247A1 Polymer blends and methods of separation using the same
08/06/2003EP1332414A1 Heat and material balance method of process control for petrochemical plants and oil refineries
08/06/2003EP1332196A1 Blends of quinone alkide and nitroxyl compounds as polymerization inhibitors
08/05/2003US6602443 Composition and method for acid gas treatment
08/05/2003US6601406 Methods and apparatus for high propane recovery
07/2003
07/31/2003WO2003062251A1 Method for the separation of acids from chemical reaction mixtures by means of ionic fluids
07/31/2003WO2003062178A1 Process for the utilization of refinery c4 streams
07/31/2003WO2003062171A2 Method for the separation of acids from chemical reaction mixtures by means of ionic fluids
07/31/2003US20030144545 Processes for making surfactants via absorptive separation and products thereof
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