Class / Patent application number | Description | Number of patent applications / Date published |
568558000 | Peroxy bonded directly to carbon | 22 |
20090187048 | Reactor for Preparing Organic Peroxides Via the Intermediate of a Solid Hydroperoxide - A reactor which comprises a vessel ( | 07-23-2009 |
568561000 | Plural peroxy groups | 1 |
568564000 | Hydroperoxy containing | 1 |
568565000 | Preparing by oxidation utilizing gaseous oxygen | 1 |
20110319668 | NON-BARBOTAGE METHOD FOR OXIDATION OF HYDROCARBONS BY FORMING AND UTILIZING LIQUID PHASE THIN FILM - The purpose of the present invention is to provide an advantageous non-barbotage method for oxidation of hydrocarbons, that, when implemented in various embodiments thereof, provides significantly higher selectivity, a greater level of safety, lower capital costs, etc., than conventional oxidation processes utilizing the barbotage technique. The essence of the inventive non-barbotage oxidation process is ensuring that the oxidizing agent delivered to the process reactor undergoes continued contact only with exposed surfaces of the liquid phase of the hydrocarbons being oxidized configured as at least one of: formed liquid phase thin film(s), liquid phase continuous stream(s), and/or liquid phase globule (e.g., droplets, etc.) stream(s), preferably, with the surface area(s) of the exposed surface(s) being maximized to increase contact with an oxidizing agent being directed thereto, to ensure that the inventive oxidation reaction occurs at the border between liquid and gas phases, such that the oxidation reaction effectively occurs by way of contact of the oxidizing agent (e.g., oxygen) from the gas phase with exposed surface(s) of the liquid phase of the hydrocarbons being oxidized. The inventive non-barbotage oxidation process may be implemented in a single reactor, or in plural sequential reactors, and may be implemented both in a stand-alone configuration, and in combination with various conventional barbotage methods for oxidation of hydrocarbons. | 12-29-2011 |
568568000 | Hydroperoxy containing | 19 |
20090203943 | METHOD FOR PRODUCING DIALKYLHYDROPEROXYBENZENES - To provide a method for producing dialkylhydroperoxybenzene by liquid-phase oxidation of dialkylbenzene, wherein the method comprises the following steps,
| 08-13-2009 |
568569000 | Preparing by oxidation utilizing gaseous oxygen | 18 |
20090005606 | HIGH SHEAR PROCESS FOR THE PRODUCTION OF CUMENE HYDROPEROXIDE - Use of a high shear mechanical device incorporated into a process for the production of cumene hydroperoxide as a mixer/reactor device is capable of decreasing mass transfer limitations, thereby enhancing the cumene hydroperoxide production process. A system for the production of cumene hydroperoxide from oxidation of cumene, the system comprising a reactor and an high shear mixer the outlet of which is fluidly connected to the inlet of the reactor; the high shear mixer capable of providing a dispersion air gas bubbles within a liquid, the bubbles having an average bubble diameter of less than about 100 μm. | 01-01-2009 |
20090171126 | Method For Acceleration of Cumene Oxidation - The purpose of the present invention is to provide an advantageous method for accelerating the cumene oxidation reaction without the drawbacks of the above-described previously known approaches by utilizing one or more airlift-type tray installed in one or more conventional commercial reactors utilized during the cumene oxidation process. Such a method is of great use in process configurations where it is desirable to achieve a controlled acceleration of the cumene oxidation process without decreasing process selectivity. | 07-02-2009 |
20100317899 | PROCESS FOR PRODUCING ALKYLBENZINE HYDROPEROXIDE - A process for producing an alkylbenzene hydroperoxide from an alkylbenzene solution containing 0.01 to 10 mmol/kg of phenols by subjecting the solution to oxidation with an oxygen-containing gas, including allowing a compound represented by formula (I) to be present in the alkylbenzene solution: | 12-16-2010 |
20110263905 | MULTISTAGE CUMENE OXIDATION - The present invention concerns a process for oxidizing cumene to cumene hydroperoxide using an oxygen containing gas, preferably air, which process comprises—conducting a cumene feed and an oxygen containing gas feed to at least the first oxidation reactor in a series of 3-8 reactors, thereby forming an oxidation mixture, and conducting the formed oxidation mixture from one reactor to the next, preferably after an oxidation reaction has taken place, wherein—the reactors comprise at least one lower pressure oxidizer ( | 10-27-2011 |
20120283481 | PROCESS FOR RECOVERING MONOALKYLBENZENE - The invention relates to a process for recovering monoalkylbenzene from a gas stream comprising oxygen and monoalkylbenzene, wherein the gas stream comprising oxygen and monoalkylbenzene is contacted with a liquid stream comprising a naphthalene compound. Further, the present invention relates to a process for preparing alkyl phenyl hydroperoxide incorporating said monoalkylbenzene recovery. | 11-08-2012 |
20130131388 | PROCESS FOR RECOVERING MONOALKYLBENZENE - The invention relates to a process for recovering monoalkylbenzene from a gas stream comprising oxygen and monoalkylbenzene, wherein the gas stream comprising oxygen and monoalkylbenzene is contacted with a liquid stream comprising polyalkylbenzene, a compound comprising two phenyl groups connected to each other via a C | 05-23-2013 |
568570000 | Alicyclic hydroperoxide produced | 8 |
20080319234 | Heterogeneous arylalkyl oxidation promoter - A promoter can have utility in selective heterogeneous oxidation of arylalkyl hydrocarbons such as, for example, cyclohexyl benzene and/or sec-butyl benzene to form hydroperoxides. The promoter can include the product of contacting a solid support comprising a metal oxide surface and an iron compound. The solid support can include, for example, titanium dioxide and/or an iron oxide such as magnetite and can have magnetic susceptibility. A method for the oxidation of arylalkyl hydrocarbons to form hydroperoxides can include contacting | 12-25-2008 |
20110082320 | CATALYTIC PROCESS FOR THE PREPARATION OF HYDROPEROXIDES OF ALKYLBENZENES BY AEROBIC OXIDATION UNDER MILD CONDITIONS - Process for the preparation of hydroperoxides of alkylbenzenes characterized by the fact that the alkylbenzene reacts with oxygen in the presence of a catalytic system consisting of an N-hydroxyimide associated with a peroxide activator having a peracid or dioxyrane structure, possibly generated in situ. | 04-07-2011 |
20110251436 | PROCESS FOR THE PRODUCTION OF ALKYLBENZENE HYDROPEROXIDES UNDER MILD CONDITIONS AND IN THE PRESENCE OF NEW CATALYTIC SYSTEMS - Process for the preparation of hydroperoxides of alkylbenzenes characterized by the fact that the alkylbenzene reacts with oxygen in the presence of a catalytic system which includes an N-hydroxyimide or an N-hydroxysulfamide and a polar solvent. | 10-13-2011 |
20110301384 | CUMENE OXIDATION - A process for oxidizing cumene to cumene hydroperoxide using an oxygen containing gas, which process composes—conducting a cumene feed and an oxygen containing gas feed to at least the first oxidation reactor in a series of 3-8 reactors, thereby forming an oxidation mixture, and—conducting the oxidation mixture from one oxidation reactor to at least one subsequent reactor, wherein—the reactors are operated with reducing liquid levels; —the oxidation is operated as a dry oxidation, whereby the only gaseous feeds conducted to the oxidation reactors are the cumene feed and the oxygen containing gas feed; —the oxygen containing gas feed is washed with caustic and then with water to remove all acidic or caustic traces before conducting it into an oxidation reactor; —the pressure within each oxidation reactor is in the range of 0-10 barg; —the off-gases from the top section of each oxidation reactor are separated and cooled, whereby a condensate containing unreacted cumene is formed, and—washing the condensate and recycling at least a part of it to at least the first oxidation reactor; —the non-condensed off-gases are treated in a thermal oxidizer; and—the first reactor in the series of oxidation reactors has a liquid inventory of 30-300% larger than in the remaining reactors, preferably 50-100%, or the first two reactors in the series of oxidation reactors have a liquid inventory of 30-300% larger than in the remaining reactors, preferably 50-100%. | 12-08-2011 |
20120149941 | Oxidation of Hydrocarbons - In a process for oxidizing a hydrocarbon to a corresponding hydroperoxide, alcohol, ketone, carboxylic acid or dicarboxylic acid, the hydrocarbon is contacted with an oxygen-containing gas in the presence of a catalyst comprising a cyclic imide of the general formula (I): | 06-14-2012 |
20120283482 | PROCESS FOR PREPARING ALKYL HYDROPEROXIDE COMPOUNDS - A method for making alkyl hydroperoxide compounds, specifically the preparation of cyclohexyl hydroperoxide is described. The preparation of cyclohexyl hydroperoxide by means of the oxidation of cyclohexane by oxygen in a multi-stage reactor or in reactors connected in series is also described. In these methods, the reactor surfaces in contact with the oxidation medium can be protected by a layer of heat-resistant PFA polymer. | 11-08-2012 |
20120310017 | METHOD FOR OXIDIZING HYDROCARBONS WITH OXYGEN - A method for oxidizing saturated hydrocarbons with oxygen, preferably saturated cyclic hydrocarbons such as cyclohexane, to produce alkyl hydroperoxide is described. A method for oxidizing saturated hydrocarbons with oxygen in a plurality of consecutive steps to control the rate of the reaction and obtain a high degree of alkyl hydroperoxide selectivity is also described. The described methods can relate to methods for condensing oxidation gases recovered in an oxidation reactor and recycling thereof. | 12-06-2012 |
20130046115 | PROCESS FOR THE PRODUCTION OF AN ALKYL HYDROPEROXIDE - A method for preparing an alkyl hydroperoxide obtained by the oxidation of a saturated hydrocarbon using oxygen, preferably of a saturated cyclic hydrocarbon, is described. Also described, is a method for preparing cyclohexyl hydroperoxide by oxidizing cyclohexane with molecular oxygen or a gas containing molecular oxygen preferably in the absence of a catalyst. | 02-21-2013 |
568571000 | Acyclic hydroperoxide produced | 1 |
20080221367 | Horizontal Reactor Vessel - Horizontal reactor vessel ( | 09-11-2008 |
568572000 | Pretreatment of material oxidized | 1 |
20120149942 | METHOD FOR HANDLING AQUEOUS SOLUTION CONTAINING WATER-SOLUBLE SUBSTANCE, METHOD FOR MANUFACTURING ALKYLBENZENE HYDROPEROXIDE, AND METHOD FOR MANUFACTURING HYDROXYBENZENE - There is provided a method for handling an aqueous solution containing a water-soluble substance that changes into a water-insoluble substance over time, including a step of bringing the aqueous solution to be treated containing the water-soluble substance that changes into the water-insoluble substance over time into contact with a water-insoluble organic solvent, and extracting the water-soluble substance into the water-insoluble organic solvent. Preferably, the water-soluble substance is alkylbenzene hydroperoxide, and the water-insoluble substance is alkylbenzene hydroperoxide-derived alcohol. Preferably, the aqueous solution to be treated is an alkaline aqueous phase separated in a water-washing step in a process of manufacturing the alkylbenzene hydroperoxide that has an alkali extraction step, the water-washing step, an oxidation step, and a reaction solution separation step. | 06-14-2012 |
568573000 | Initiator, accelerator, or catalyst utilized | 2 |
20110092742 | Process for Producing Alkylbenzene Hydroperoxides - In a process for producing alkylbenzene hydroperoxides, a feed comprising (i) sec-butylbenzene, (ii) cumene in an amount greater than 10 wt % of the total feed and (iii) at least one of iso-butylbenzene and tert-butylbenzene in an amount up to 20 wt % of the total feed is contacted with an oxygen-containing gas in the presence of a catalyst comprising a cyclic imide of the general formula (I): | 04-21-2011 |
20110172466 | Oxidation of Hydrocarbons - In a process for oxidizing a hydrocarbon to the corresponding hydroperoxide, alcohol, ketone, carboxylic acid or dicarboxylic acid, a reaction medium comprising a hydrocarbon is contacted with an oxygen-containing gas in a reaction zone and in the presence of a catalyst comprising a cyclic imide. During the oxidation process, a portion of the reaction medium is continuously or intermittently removed from the reaction zone, is stripped of water and organic acid impurities and then returned to the reaction zone. | 07-14-2011 |
568577000 | Preparing by oxidation utilizing gaseous oxygen | 1 |
20110098509 | PROCESS FOR THE PREPARATION OF PHENOL BY MEANS OF NEW CATALYTIC SYSTEMS - The invention relates to a process for the preparation of phenol which comprises the aerobic oxidation of cumene to hydroperoxide with high conversions and selectivities, in the presence of new catalytic systems, extremely mild conditions and the subsequent acid decomposition of the hydroperoxide to phenol and acetone. | 04-28-2011 |