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| Number | Title | Issue Date |
| 7622618 | Method for hydrating olefins A novel olefin hydration method is provided for efficiently producing alcohols by hydration of olefins containing 2 to 5 carbon atoms in the presence of a catalyst. Thus, alcohols are produced by hydrating olefins containing 2 to 5 carbon atoms at reaction temperatu... | 11/24/2009 |
| 7297324 | Microchannel reactors with temperature control Microchannel devices and method of use are disclosed wherein a reaction microchamber 52 is in thermal contact with a heat exchange channel 61. An equilibrium limited exothermic chemical process occurs in the reaction microchamber 52. Sufficient ... | 11/20/2007 |
| 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 |
| 7211702 | 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... | 05/01/2007 |
| 7202189 | Shaped catalysts for transalkylation of aromatics for enhanced xylenes production A catalyst, a process for using the catalyst whereby the catalyst effectively transalkylates C7, C9, and C10 aromatics to C8 aromatics are disclosed. The catalyst comprises a support such as mordenite plus a metal componen... | 04/10/2007 |
| 7183446 | Alcohol mixtures having 13 and 15 carbon atoms and the use thereof in the preparation of surface-active substances The present invention relates to an alcohol mixture which substantively comprises alcohols having 13 or 15 carbon atoms, to a process for its preparation, to a process for functionalizing these alcohol mixtures, and to the resultant functionalized alcohol mixtures a... | 02/27/2007 |
| 7179948 | Process for preparing tert-butanol The invention relates to a process for preparing tert-butanol by reaction of a homogeneous mixture comprising water, tert-butanol and an isobutene-containing hydrocarbon mixture over an acidic ion-exchange resin at from 30 to 120° C., wherein the homogeneous mixtur... | 02/20/2007 |
| 7148387 | Process for producing hydroxyl group-containing compound Discloses a process for efficiently producing a hydroxyl group containing compound with a simple apparatus and simple procedures using a very small amount of a catalyst, which process reduces a catalyst recovering step and a catalyst neutralization step vastly and d... | 12/12/2006 |
| 7115787 | Method for producing tert-butanol by means of reactive rectification The invention relates to a process for preparing tert-butanol (TBA) from isobutene-containing mixtures, in which at least part of the conversion is achieved with the aid of a reactive rectification. ... | 10/03/2006 |
| 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 |
| 7057081 | Method for treating alkanes Methods are disclosed for converting propane and higher alkanes to their corresponding alcohols through a multi-step process with olefin as an intermediate. Methods are also disclosed for facilitating the transportation, purification or other treatment of propylene ... | 06/06/2006 |
| 7034193 | Method for purifying spent acid A method for purifying a spent acid catalyst from an acid catalyzed chemical reaction that generates a mixture of a product, spent add and tar, includes the steps of separating the mixture of product, spent acid, and tar into a product fraction and a spent acid frac... | 04/25/2006 |
| 7026519 | Obtaining tert-butanol The invention relates to a process for preparing tert-butanol (TBA) by reacting isobutene-containing hydrocarbon mixtures with water over acidic solid catalysts in a plurality of reactors, wherein the conversion is increased upstream of the last reactor by removing ... | 04/11/2006 |
| 7002050 | Process for preparing tert-butanol from isobutene-containing hydrocarbon mixtures The present invention relates to a process for preparing tert-butanol (TBA) by reacting an isobutene-containing hydrocarbon mixture with water over a solid acid catalyst in a reactor cascade, wherein at least one reactor is supplied alternately with two different is... | 02/21/2006 |
| 6951967 | Process for the preparation of tertiary alcohols by the hydration of tertiary olefins in a reactive rectification using a structured multi-purpose packing Tertiary alcohols can be prepared by the hydration of tertiary olefins having the same number of carbon atoms on an acidic ion exchanger using special structured multi-purpose packings for heterogeneous reactive rectification. An excellent yield and purity of the al... | 10/04/2005 |
| 6906229 | Process for hydrolyzing di-isopropyl ether to isopropyl alcohol by catalytic distillation using a solid acid catalyst The invention relates to the production of isopropyl alcohol from di-isopropyl ether by catalytic distillation. The process solves, in particular, problems associated with the Sulfuric Acid Process. ... | 06/14/2005 |
| 6833483 | 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... | 12/21/2004 |
| 6818799 | Process for removing tar from spent acid There is a process for removing by-product tar during the manufacture of isopropyl alcohol. The process comprises the following: a) reacting propylene with concentrated sulfuric acid and water to form isopropyl alcohol and a spent acid having a by-product tar; b) ca... | 11/16/2004 |
| 6432858 | Process for the regeneration of hydration catalyst for cyclic olefins This invention relates to a method for regenerating a cyclic olefin hydration catalyst, in which a solid acid catalyst is regenerated after its use in a hydration reaction of a cyclic olefin by mixing a water phase containing the solid acid catalyst and a... | 08/13/2002 |
| 6414202 | Membrane-augmented manufacture of propylene derivatives A process for manufacturing isopropyl alcohol by reacting propylene with a reagent, including treating a vent stream from the reaction zone, to recover propylene for return to the reactor. The process involves using a gas separation membrane to separate p... | 07/02/2002 |
| 6284930 | Process for the preparation of 3-hydroxypropanal 3-Hydroxypropanal is prepared by reacting acrolein with water under pressure and in the presence of an ion exchange resin while adding a carboxylic acid to the reaction mixture.... | 09/04/2001 |
| 6111148 | Process for producing tertiary butyl alcohol A process for continuously producing tertiary butyl alcohol from water and a liquefied gas composed of isobutylene or an isobutylene-containing hydrocarbon using tertiary butyl alcohol as a solvent in the presence of a cation exchange resin in a series mu... | 08/29/2000 |
| 5892066 | Propylene oxide and derivatives process Propylene is oxidized with molecular oxygen in the liquid phase to form products including propylene oxide, propylene glycol, propylene glycol esters, allyl alcohol, acrolein and acetal, the acrolein is hydrogenated to allyl alcohol, the acetol is hydroge... | 04/06/1999 |
| 5763693 | Process for producing isopropyl alcohol In a process for producing isopropyl alcohol by direct liquid phase hydration of propylene and water in the presence of a strong acid solid catalyst at a high temperature and a high pressure, the reaction is carried out at a temperature in a ranging betwe... | 06/09/1998 |
| 5714646 | Process for producing isopropyl alcohol A process for producing isopropyl alcohol by hydrating directly propylene and water in the presence of a strong acid solid catalyst which includes feeding continuously propylene, water which is the same as or more than propylene in terms of mole, and a sa... | 02/03/1998 |
| 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 |
| 5696304 | Process for producing alkadienols The disclosure describes a process for producing alkadienols comprising the steps of: reacting a conjugated alkadiene with water in a reaction solvent in the presence of a palladium catalyst; distilling the obtained reaction mixture so as to separate the ... | 12/09/1997 |
| 5608123 | Process for catalytic hydration of olefins There is provided a process for reacting water and olefin such as ethylene or propylene under mild conditions in the presence of a polyorganosiloxane contaminating sulfonic acid groups to produce alcohol corresponding to the olefin with high yield and sel... | 03/04/1997 |
| 5488185 | Process for the production of ethanol and isopropanol An ethene stream which contains ethane as an impurity or a propene stream which contains propane as an impurity is hydrated with water vapor in the presence of a hydration catalyst to produce ethanol or isopropanol, respectively. After removal of the alco... | 01/30/1996 |
| 5382705 | Production of tertiary alkyl ethers and tertiary alkyl alcohols A process for upgrading a light olefin feed by converting the 1-olefins to higher molecular weight oligomers and the iso-oleins to fuel ethers or alcohols. The process provides substantial improvements in the production of lower alkyl tertiary alkyl ether... | 01/17/1995 |
| 5302762 | Method for hydrating a cycloolefin Disclosed is a method for hydrating a cycloolefin, in which the hydration is conducted in a reaction system comprising a continuous aqueous phase including water and a crystalline aluminosilicate catalyst suspended therein and an oil phase including a cyc... | 04/12/1994 |
| 5284979 | Process for the prepartion of 3-hydroxyalkanals A process is disclosed for the preparation of 3-hydroxyalkanals having 3 to 12 carbon atoms, in particular 3 or 4 carbon atoms, by hydration of the underlying 2-alkenals with water in a homogeneous phase in the presence of an acid catalyst. The previously... | 02/08/1994 |
| 5283377 | Method for producing octadienols A method for producing octadienols, which comprises reacting 1,3-butadiene with water in the presence of a palladium compound, a phosphine compound and carbon dioxide, wherein a compound of the formula (I): ##STR1## wherein each of R1, R | 02/01/1994 |
| 5268515 | Process of preparing an isopropanol and diisopropyl ether oxgenate motor fuel additive Propene is reacted with water in a multi-stage, fluidized bed catalytic reactor to produce an oxygenate motor fuel additive containing a major proportion of isopropanol, a minor proportion of diisopropyl ether, and some water. The molar ratio of water to ... | 12/07/1993 |
| 5262576 | Method for the alkylation of organic aromatic compounds A method and apparatus for conducting a catalytic distillation process is provided which allows for maintaining a liquid level in selected portions of the catalyst bed. Three particular processes disclosed are the production of methyl tertiary butyl ether... | 11/16/1993 |
| 5245093 | Reaction processes in a multi-stage fluidized bed A process for reacting a fluid phase (gaseous and/or liquid phase) in contact with a solid phase in a reaction zone, wherein the improvement in said process comprises reacting the fluid phase in contact with the solid phase in a horizontally-oriented flui... | 09/14/1993 |
| 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 |
| 5221441 | Method for operating a catalytic distillation process A method and apparatus for conducting a catalytic distillation process is provided which allows for maintaining a liquid level in selected portions of the catalyst bed. Three particular processes disclosed are the production of methyl tertiary butyl ether... | 06/22/1993 |
| 5191129 | Method of preparing an isopropanol and diisopropyl ether oxygenate motor fuel additive Propene is reacted with water in a multi-stage, fluidized bed catalytic reactor to produce an oxygenate motor fuel additive containing a major proportion of isopropanol (IPA), some diisopropyl ether (IPE) and some water. The molar ratio of water to propen... | 03/02/1993 |
| 5011506 | Integrated etherification and alkene hydration process A method is disclosed combining the process for the hydration or etherification of light linear olefins, such as the production of diisopropyl ether (DIPE), with the process for the etherification of C4 + or C4 hydrocarbons containin... | 04/30/1991 |
