| Patents for C07C 7 - Purification, separation orstabilisation of hydrocarbons; Use of additives (13,802) |
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| 05/14/2003 | CN1108185C Fluid distributor-mixer-extractor and related process |
| 05/13/2003 | US6562996 Formed by reacting toluene with carbon monoxide in the presence of carbonylation catalyst to form a tolualdehyde isomers |
| 05/08/2003 | WO2003037835A2 Method for eliminating polarizable impurities from hydrocarbons with ionic liquids |
| 05/08/2003 | US20030087399 Separation of enantiomers of an amino acid; obtain racemic mixture, incubate with glutaric anhydride, expose products to hydrolase, recover enantiomers |
| 05/06/2003 | US6559349 Contacting with linear polyaromatic compound to form adduct |
| 05/06/2003 | US6559248 Method of purifying olefin containing oxygenate contaminants. The method incorporates the use of extractive distillation. Under the appropriate conditions, olefins containing very low levels of oxygenate contaminants can be recovered. |
| 05/02/2003 | EP1306444A1 Method for the production of beta-carotene |
| 05/02/2003 | EP1305279A2 Polymerization inhibitor for vinyl-containing materials |
| 05/01/2003 | WO2003035589A1 The selective dismutation process of toluene and the dismut5ation and transalkylation process of toluene and aromatic hydrocarbons of c9 and c9+ |
| 05/01/2003 | WO2003035588A1 Process and apparatus for separation and purification of conjugated diene |
| 05/01/2003 | WO2003035586A1 Process for the alkylation of aromatic compounds |
| 05/01/2003 | US20030080318 Inhibition of polymerization of unsaturated monomers |
| 05/01/2003 | US20030080028 To moderate the operation conditions of solvent recovery, increase the yield of aromatics, and make the separated aromatics to be neutral |
| 04/30/2003 | CN1413968A Toluene selective disproportion and toluene and C9 and its above aromatic disproportion and alkyl transfusion method |
| 04/30/2003 | CN1413967A Polymerization inhibition process used in butadiene refining procedure |
| 04/30/2003 | CN1106880C Process for preparing adsorbent of selection adsorption separation aromatic isomer |
| 04/29/2003 | US6555726 Methods for enhanced extractive distillation employing extractive distillation compositions comprising sulfolane and compatibility agent |
| 04/29/2003 | US6555073 Catalytic reduction of phenylacetylene in a styrene stream |
| 04/24/2003 | WO2003033442A1 Recovery of tertiary butyl alcohol |
| 04/24/2003 | WO2003033441A1 Method of removing dimethyl ether from an olefin stream |
| 04/24/2003 | WO2003033438A1 A method for processing an olefin-containing product stream |
| 04/24/2003 | WO2001060771A8 Process for purifying a liquid hydrocarbon product |
| 04/23/2003 | EP1303544A2 Method of reducing formation of precipitates in solvent recovery system |
| 04/23/2003 | CN1413194A Inhibition of polymerization of unsaturated monomers |
| 04/23/2003 | CN1412165A Separation method of cracked C5 fraction |
| 04/22/2003 | US6552242 Recover desorbent butane using single column; reduced cost |
| 04/17/2003 | WO2003031377A1 Method of separating/purifying conjugated diene and separation/purification apparatus |
| 04/17/2003 | US20030073831 Continous separation of preferential compounds from sample; prepare liquid interphases, incubate with sample, recover compound |
| 04/16/2003 | EP0970030B1 Method of purifying 1,3,5-triisopropylbenzene |
| 04/15/2003 | US6548726 Diethylhydroxylamine (DEHA) from butadiene streams via ion exchange resins, wherein tert-butylcatechol prevents polymerization; purification |
| 04/15/2003 | US6548721 Hydrotreating olefin stream with complete destruction of oxygenates |
| 04/10/2003 | WO2003030448A2 Communications node for circuit-switched and packet-switched services |
| 04/10/2003 | WO2003028867A1 Laminated zeolite composite and method for preparation thereof |
| 04/10/2003 | US20030069461 Process for co-production of paraxylene, metaxylene and/or orthoxylene |
| 04/10/2003 | US20030069459 Integrated process for the production of 2, 6-dimethylnaphthalene |
| 04/10/2003 | CA2500167A1 Communications node for circuit-switched and packet-switched services |
| 04/09/2003 | EP1300139A2 Medicament excipient particles for tissue-specific application of a medicament |
| 04/09/2003 | EP1299332A1 Pressure swing adsorption process for separating para-xylene and ethylbenzene from mixed c8 aromatics |
| 04/09/2003 | CN1409655A Carrier catalyst for selective hydrogenation of alkines and dienes |
| 04/09/2003 | CN1408690A Co-production method for dimethyl benzene, meta dimethyl benzene and/or ortho dimethyl benzene |
| 04/09/2003 | CN1408689A Extraction and extracting rectification process for recovering aromatic hydrocarbon |
| 04/09/2003 | CN1105093C Process for produciton of alkylated benzenes |
| 04/08/2003 | US6545192 By reacting with linear polyaromatic compounds such as anthracene to form Diels-Alder adducts, filtration, then dissociation of adduct |
| 04/08/2003 | CA2078744C Unsaturated polyesters and crosslinked membranes therefrom for aromatics/saturates separation |
| 04/03/2003 | WO2002004391A9 Pressure swing adsorption process for separating para-xylene and ethylbenzene from mixed c8 aromatics |
| 04/02/2003 | EP1296916A1 Method for producing squalene |
| 04/02/2003 | EP0804400B1 Hydroformylation of a multi-component feed stream |
| 04/02/2003 | CN1406914A Aromatic adsorption desulfurizing method |
| 04/02/2003 | CN1406912A Method for desulfurizing by aromatic adsorption with magnetically stabilized bed |
| 04/01/2003 | US6541652 Process and apparatus for isolating organic substances from a gas mixture in which these substances are present |
| 03/27/2003 | WO2003024904A1 Scrubbing co2 from methane-containing gases using an aqueous stream |
| 03/27/2003 | WO2003024605A2 Underwater scrubbing of co2 from co2-containing hydrocarbon resources |
| 03/27/2003 | US20030060360 Selective adsorption of alkenes using supported metal compounds |
| 03/27/2003 | US20030057158 Method for inhibiting the pluggins of conduits by gas hydrates |
| 03/26/2003 | CN1406217A Process for producing low polymer of ethylene |
| 03/26/2003 | CN1405211A Method for preparing high-purity xanthohumic acid using supercritical CO2 |
| 03/26/2003 | CN1405129A Method for subtracting hydrocarbor impurities of above C3+ from mixed acetylene gas and recovering acetylene |
| 03/25/2003 | US6538168 Carrying out catalytic metathesis to convert butenes in starting stream into mixture of C2-C6 olefins and butanes, distilling to give low boiler fraction which is discharged, distilling high boiler fraction to give desired products |
| 03/20/2003 | WO2003022942A1 Molecular tags for organic solvent systems |
| 03/20/2003 | WO2002064703A3 Removal of impurities from hydrocarbon streams |
| 03/20/2003 | US20030055302 Hydrocarbon hydrogenation catalyst composition, a process of treating such catalyst composition, and a process of using such catalyst composition |
| 03/20/2003 | US20030055183 Inhibiting catalyst coke formation in the manufacture of an olefin |
| 03/20/2003 | US20030055116 Scrubbing CO2 from methane-containing gases using an aqueous stream |
| 03/20/2003 | US20030052056 Polymer, a silver salt, and a phthalate |
| 03/19/2003 | CN1404465A Process for producing para-xylene |
| 03/19/2003 | CN1404464A Process for purifying a liquid hydrocarbon product |
| 03/19/2003 | CN1403426A Method of eliminating alkali matter in toluene |
| 03/13/2003 | WO2003021017A1 Process for the removal of impurities from combustion fullerenes |
| 03/13/2003 | WO2003020943A2 Enzymatic method for the enantiomeric resolution of amino acids |
| 03/13/2003 | WO2003020678A2 Method of separating dimethyl ether from an olefin stream |
| 03/13/2003 | WO2003020674A1 Co2 rejection from natural gas |
| 03/13/2003 | WO2003020673A1 Process of removing contaminants from an olefin stream using extractive distillation |
| 03/13/2003 | WO2003020672A1 Low pressure separation of dimethyl ether from an olefin stream |
| 03/13/2003 | WO2003020671A1 High pressure separation of dimethyl ether from an olefin stream |
| 03/13/2003 | WO2003020670A1 Method of removing oxygenate contaminants from an olefin stream |
| 03/13/2003 | WO2003020668A1 A process for the production of triptane |
| 03/13/2003 | US20030047492 High ethane recovery from a ryan/holmes additive recovery column |
| 03/13/2003 | US20030047439 C-nitrosoaniline compounds and their blends as polymerization inhibitors |
| 03/13/2003 | US20030047071 CO2 rejection from natural gas |
| 03/12/2003 | EP1289919A2 Method for producing acrolein and/or acrylic acid |
| 03/12/2003 | CN1402697A Inhibition of polymerization of unsaturated monomers |
| 03/06/2003 | WO2003019068A2 Dewatering device and method for gas hydrate slurrys |
| 03/06/2003 | US20030045766 Sulfone-sulfoxide compositions for enhanced aromatic extraction |
| 03/06/2003 | US20030045655 Removal of substantially all oxygenate contaminants from an olefin containing stream; resulting purified olefin is particularly suitable for use as feed in manufacture of polyolefins |
| 03/06/2003 | US20030044341 Solvent extraction |
| 03/06/2003 | DE10201260C1 Regeneration of molecular sieve, used for separating lower alkanes from alkenes, involves stripping with superheated nitrogen stream to remove hydrocarbon oligomers and other compounds |
| 03/05/2003 | EP1036053B1 Method for purifying norbornene by distillation |
| 03/04/2003 | US6528695 Producing paraxylene and benzene in high yield starting from an aromatic hydrocarbon feedstock |
| 02/27/2003 | WO2003016268A1 Stabilisation of ethylenically-unsaturated compounds with amidoximes |
| 02/27/2003 | WO2003016252A2 Alkyl aromatic aldehydes |
| 02/27/2003 | WO2003016249A1 Process for producing branched olefins from linear olefin / paraffin feed |
| 02/27/2003 | WO2003015916A1 A catalyst for selective hydrogenating unsaturated hydrocarbon, and a preparation and an application of the same |
| 02/26/2003 | EP1285051A2 Mercaptan removal from petroleum streams |
| 02/26/2003 | CN1399620A Processes for preventing generation of hydrogen halides in oligomerization product recovery system |
| 02/25/2003 | US6525235 Method for manufacturing 2,6-dimethylnaphthalene |
| 02/25/2003 | US6525233 Process for preparing a modified alkylaryl |
| 02/25/2003 | US6525147 Decomposing hydrogen peroxide |
| 02/20/2003 | WO2003014169A2 Optimization of heat removal in a gas-phase fluidized-bed process |
| 02/20/2003 | US20030036669 Process for selective hydrogenation of alkynes and catalyst therefor |
| 02/20/2003 | US20030036476 Shell catalysts, method for producing the same, and the use thereof |