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| Number | Title | Issue Date |
| 7247764 | Conversion process The invention relates to a conversion process for making olefin(s) using a molecular sieve catalyst composition. More specifically, the invention is directed to a process for converting a feedstock comprising an oxygenate in the presence of a molecular sieve catalys... | 07/24/2007 |
| 7238846 | Conversion process The invention relates to a conversion process for making olefin(s) using a molecular sieve catalyst composition. More specifically, the invention is directed to a process for converting a feedstock comprising an oxygenate in the presence of a molecular sieve catalys... | 07/03/2007 |
| 7235702 | Process for production of alcohols The invention disclosed relates to the production of alcohols. A first aspect of the invention relates to a process for production of alcohols, and in particular to a process for the catalytic hydration of an olefin to the corresponding alcohol in substantially anhy... | 06/26/2007 |
| 7064238 | Conversion of alkanes to oxygenates A process is provided for converting an alkane to an oxygenated product by passing an alkane gas over a first fixed bed containing a higher valence bromide salt to produce an alkyl bromide, a hydrobromic acid, and a lower valence bromide salt. The alkyl bromide and ... | 06/20/2006 |
| 6953867 | Process for the hydration of olefins A catalyst support consisting mainly of synthetic silica, with 0.5-10 parts by weight of one or more oxides or phosphates of the elements of group IIA, IIIB, IVB, VB, VIB, VIIB, VIII, IB, IIB, IIIA, IVA and the lanthanides, wherein the support preparation method com... | 10/11/2005 |
| 6608230 | Single-stage method for producing -hydroxy ethers by oxidizing C=C unsaturated compounds with hydroperoxides A single-stage method for producing -hydroxy ethers by oxidizing olefinic substrates with organic hydroperoxides and opening the resultant oxirane ring by means of monovalent or polyvalent alcohols wherein a molybdenum compound in combination with ... | 08/19/2003 |
| 6479710 | Method of catalyzing a gas phase reaction using an acid-base catalyst composed of vanadium pentoxide hydrate A solid acid-base catalyst contains vanadium pentoxide hydrate. Moreover, it is preferable that the vanadium pentoxide hydrate in the solid acid-base catalyst has a composition which is represented by the following general equation (1): V2 O | 11/12/2002 |
| 6380439 | Single-stage method for producing -hydroxy ethers by oxidizing C=C-unsaturated compounds with hydroperoxides A single-stage method for producing -hydroxy ethers by oxidizing olefinic substrates with organic hydroperoxides and opening the resultant oxirane ring by means of monovalent or polyvalent alcohols wherein a molybdenum compound in combination with ... | 04/30/2002 |
| 6103939 | Process for the preparation of 1,4-butanediol monoethers A process for preparing tetrahydrofuran, which comprises reacting 1,4-butenediol diethers of the formulae I and/or II RO--CH2 --CH.dbd.CH--CH2 --OR I RO--CH2 --CH2 .dbd.CH--CH2 --OR ... | 08/15/2000 |
| 6049012 | Catalyst and process for the production of alkyl tert alkyl ether from hydrocarbon feedstocks with high levels of sulfur A catalyst for production of alkyl tert alkyl ether from sulfur contaminated feedstock includes an ion exchange resin; a palladium first metal phase supported on the resin; and a sulfur inhibiting second metal phase supported on the resin for inhibiting s... | 04/11/2000 |
| 6037482 | Process for catalytic addition of nucleophiles to alkynes or allenes A process for the catalytic addition of nucleophilic agents to alkynes or allenes to form alkenes substituted by the nucleophile which may further react with the nucleophile and/or isomerize comprises using a catalyst comprising a wholly or partly ionized... | 03/14/2000 |
| 5986148 | Di-isopropyl ether synthesis and dry product recovery An improved process for production of diisopropyl ether by conversion of hydrocarbon feedstock containing propene, propane and C2 -- light gas components. The overall process steps include, (optionally) prefractionating fresh feedstock containi... | 11/16/1999 |
| 5744645 | Two-stage process for producing diisopropyl ether using catalytic distillation A process for the efficient production of diisopropyl ether where catalytic distillation is used to increase the yield of product beyond thermodynamic equilibrium limitations has been developed. In a hydration zone the propylene in a feedstock is reacted ... | 04/28/1998 |
| 5712313 | Process for carrying out chemical equilibrium reactions A process for carrying out a chemical equilibrium reaction is disclosed in which, in a first stage, one or more reactants are contacted with a fixed arrangement of a catalyst under conditions such that the reactants and the products of the reaction are ga... | 01/27/1998 |
| 5508244 | Pretreatment process of zeolite catalyst and process for producing alcohol using the pretreated catalyst Disclosed are a pretreatment process of a zeolite as a catalyst for producing an alcohol by hydration of an olefin, comprising keeping the zeolite in contact with water before the hydration, and a process for producing an alcohol which comprises hydrating... | 04/16/1996 |
| 5504258 | Two-stage process for producing diisopropyl ether using catalytic distillation A process for the efficient production of diisopropyl ether where catalytic distillation is used to increase the yield of product beyond thermodynamic equilibrium limitations has been developed. In a hydration zone the propylene in a feedstock is reacted ... | 04/02/1996 |
| 5488186 | Gas phase process for the hydration of propylene A process is presented for the hydration of light olefins to produce C2 -C7 aliphatic alcohols with improved selectivity, catalyst productivity and catalyst stability. Acidic medium pore, shape selective metallosilicate catalyst part... | 01/30/1996 |
| 5405814 | Olefin conversion catalyst regeneration An olefin hydration catalyst is regenerated with a non-oxidizing light gas, such as hydrogen. Light olefins, especially propylene, are converted to a mixture of alcohol(s), such as isopropanol (IPA) and ether(s), such as diisopropylether (DIPE) by contact... | 04/11/1995 |
| 5349110 | Synthesis of low molecular weight glycol ethers from oxiranes plus olefins Disclosed is a process for preparation of monoalkyl ethers by reacting low molecular weight olefins and the corresponding oxiranes, in the presence of a catalyst comprising an acidic heterogeneous or homogeneous catalyst, generally represented by the equa... | 09/20/1994 |
| 5324865 | Di-isopropyl ether production A process for production of diisopropyl ether by conversion of hydrocarbon feedstock containing propene, propane and C2 - light gas components, including the steps of: optionally, prefractionating fresh feedstock containing propene, propane and... | 06/28/1994 |
| 5288924 | Process for starting up an olefin hydration reactor A method for starting up a fixed bed propylene hydration reactor containing shape selective metallosilicate catalyst particles for the production of isopropanol and/or diisopropyl ether is disclosed comprising the following sequential steps: contacting a ... | 02/22/1994 |
| 5231233 | Process for the hydration of olefins There is provided a process for converting light olefin to alcohol(s), ether(s) or mixtures of alcohol(s) and ether(s) which comprises contacting a feed containing at least one light olefin with water in the vapor and/or liquid phase under olefin hydratio... | 07/27/1993 |
| 5208387 | Two stage process for production of diisopropyl ether An improved process is disclosed for the acid catalyzed production of DIPE from propene and water feedstreams that eliminates the propene recycle stream to the olefin hydration reactor and achieves high propene conversion. The accomplishment is achieved b... | 05/04/1993 |
| 5162591 | Catalytic olefin hydration for ether production A process for production of dialkyl ether by hydration and etherification of olefinic feedstock containing at least one lower alkene by contacting the olefinic feedstock and water in a catalytic reaction zone with porous solid metallosilicate acidic catal... | 11/10/1992 |
| 5144084 | Process for the conversion of olefins to alcohols and/or ethers Olefins are converted to alcohols and/or ethers employing, as catalyst, an acidic zeolite which has been bound with an essentially non-acidic refractory oxide of at least one metal of Group IVA and/or IVB of the Period Table of the Elements, e.g., silica,... | 09/01/1992 |
| 5138102 | Reactor quenching for catalytic olefin hydration in ether production A process for production of ether by hydration and etherification of olefinic feedstock containing at least one lower alkene by contacting the olefinic feedstock and water in a plurality of catalytic reaction zones containing porous solid metal oxide acid... | 08/11/1992 |
| 5105023 | Process for the hydration of olefins cross reference to related applications A process for converting light olefin to alcohol(s), ether(s) or mixtures of alcohol(s) and ether(s) which comprises contacting a feed containing at least one light olefin with water in the vapor and/or liquid phase under olefin hydration conditions in th... | 04/14/1992 |
| 5102428 | Integrated process for the production of diisopropyl ether and gasoline A process is disclosed for integrating etherification to produce diisopropyl ether (DIPE) with processes to convert oxygenates and hydrocarbons to gasoline boiling range hydrocarbons in a manner which eliminates the requirement to recycle unreacted C... | 04/07/1992 |
| 5041690 | Conversion of alcohols to ether-rich gasoline Methanol or other alcohol is converted to high octane gasoline components by an integrated process wherein crude aqueous alcohol feedstock is extracted with a liquid extractant stream containing C4 +iso-olefin and reacted to form tertiary-alkyl... | 08/20/1991 |
| 5012014 | Catalyst pretreatment for olefin hydration A process for production of alcohol or ether by hydration of olefinic feedstock containing at least one lower alkene by contacting the olefinic feedstock and water in a hydration zone with porous solid metal oxide acidic olefin hydration catalyst under ol... | 04/30/1991 |
| 4935552 | Dual stage process for the production of ethers Light olefins are catalytically converted to ethers, e.g., propylene is converted to diisopropyl ether, in a dual stage process in which product ether is recycled to a first stage reaction zone to significantly reduce the operating temperature of the olef... | 06/19/1990 |
| 4927977 | Process and apparatus for the uniform distribution of a two-phase feed in a chemical reaction zone A process and apparatus are provided for the substantially uniform distribution of a two-phase feed in a chemical reaction zone. As applied, for example, to the hydration/etherification of light olefin to alcohol(s) and/or ether(s), the invention results ... | 05/22/1990 |
| 4857664 | Process for the production of ether and alcohol Olefin undergoes conversion in the presence of water to a mixture of alcohol and ether which is then subjected to various downstream operations including distillation and decantation to provide an ether-rich product containing little if any water. If desi... | 08/15/1989 |
| 4783555 | Process for the production of a hydration product from an olefinic feedstock A hydration product is produced from an olefinic feedstock by contacting the olefinic feedstock with water under hydration conditions in the presence as catalysts of a unidimensional medium pore crystalline zeolite, for example Theta-1, ferrierite, ZSM-22... | 11/08/1988 |
| 4590294 | Proton-catalyzed reactions catalyzed by hydrogen ion-exchanged layered clays The invention relates to the use of hydrogen ion-exchanged layered clays in organic reactions which are catalyzed by protons. Such organic reactions include the production of ethers by the reaction of an alcohol with an olefin or an olefin oxide, the prod... | 05/20/1986 |
| 4267397 | Hydration of olefinic compounds with dilute sulfuric acid and cobalt sulfate Olefinic compounds, and particularly olefinic hydrocarbons, containing from 2 to about 4 carbon atoms may be subjected to a direct hydration process utilizing a dilute aqueous sulfuric acid to treat the olefin at reaction conditions which will include a t... | 05/12/1981 |
