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| Number | Title | Issue Date |
| 7361792 | Process and catalyst for producing hydroperoxides A process and catalyst for preparing organic hydroperoxides by oxidizing hydrocarbon compounds in the presence of an oxygen-containing gas and a catalyst containing a transition metal on a solid support. ... | 04/22/2008 |
| 7335797 | Process for the synthesis of cumene hydroperoxide This invention refers to a process for the synthesis of cumene hydroperoxide and to the product thus obtained. More in particular, this invention refers to a process for the production of cumene hydroperoxide by oxidating cumene with oxygen, where this proces... | 02/26/2008 |
| 7326815 | Selective oxidation of alkylbenzenes The present invention relates to a process for producing phenol and a ketone of general formula R1COCH2R3 (I), in which R1 and R2 each independently represent an alkyl group having from 1 to 4 carbon atoms, said... | 02/05/2008 |
| 7141703 | Process for producing phenol and ketone using neutralizing base Improved processes for oxidizing alkylbenzene(s) to produce phenol and ketone product(s) using neutralizing base. ... | 11/28/2006 |
| 7038090 | Process and catalyst for producing hydroperoxides A process and catalyst for preparing organic hydroperoxides by oxidizing hydrocarbon compounds in the presence of an oxygen-containing gas and a catalyst containing a transition metal on a solid support. ... | 05/02/2006 |
| 6965056 | Removal of salts in the manufacture of phenolic compound There is provided a process for the manufacture of phenolic compounds by separating a neutralized aralkyl hydroperoxide cleavage mass stream containing salts of neutralization into a crude ketone stream and a crude phenolic stream containing the salts of neutralizat... | 11/15/2005 |
| 6107527 | Process for the production of hydroxy-aromatic substances The process for the production of hydroxy aromatic substances by means of catalytic oxidation of isoalkyl aromatic substance with oxygen, and decomposition of the hydroperoxide thus formed, is based on the concept that isoalkylaromatic substances are emul... | 08/22/2000 |
| 6043399 | Process for the preparation of cumene hydroperoxide The present invention lies in the field of the manufacture of phenol from cumene. The subject of the invention is a process for the continuous preparation of cumene hydroperoxide by oxidation, in the liquid phase, of cumene in the presence of oxygen. The ... | 03/28/2000 |
| 5922920 | Catalytic production of aryl alkyl hydroperoxides by polynuclear transition metal aggregates A method is provided for preparing organic hydroperoxides by oxidizing aryl alkyl hydrocarbons having a benzylic hydrogen with an oxygen containing gas using as a catalyst an oxo (hydroxo) bridged tetranuclear metal complex having a mixed metal core, one ... | 07/13/1999 |
| 5504256 | Catalytic production of aryl alkyl hydroperoxides by polynuclear transition metal aggregates (LAW229) A method is provided for preparing organic hydroperoxides by oxidizing aryl alkyl hydrocarbons having a benzylic hydrogen with an oxygen containing gas using as a catalyst an oxo (hydroxo) bridged tetranuclear metal complex having a mixed metal core, one ... | 04/02/1996 |
| 5196598 | Process for producing polyhydroperoxy aromatic compound A process for producing a polyhydroperoxy aromatic compound by oxidation of an aromatic hydrocarbon, e.g., 4,4'-diisopropylbiphenyl and 4,4'-diisopropylnaphthalene, with molecular oxygen is disclosed, in which the oxidation is carried out in the presence ... | 03/23/1993 |
| 5183945 | Catalytic production of aryl alkyl hydroperoxides by manganese complexes This invention relates to a process for preparing organic hydroperoxides by selectively oxidizing aryl alkyl hydrocarbons to their corresponding organic hydroperoxides using a catalyst certain tetranuclear manganese complexes. The process is carried out w... | 02/02/1993 |
| 4950794 | Ethylbenzene oxidation The oxidation of ethylbenzene to products comprised of ethylbenzene hydroperoxide and acetophenone is modified in order to enhance acetophenone production by reducing the alkali content of the oxidation mixture below 0.1 ppm and by incorporation of 0.05 t... | 08/21/1990 |
| 4642392 | Conjugated alkadiene telomerization to organo-oxyalkadienes A process for the telomerization of a conjugated alkadiene with an alkanol is disclosed for the production of an organo-oxyalkadiene. A palladium catalyst having a phosphine or stibene ligand is employed in a substantially oxygen-free environment and in t... | 02/10/1987 |
| 4503262 | Process for the production of 2,6-diisopropylnaphthalene dihydroperoxide A process is disclosed for the preparation of 2,6-dihydroisopropylnaphthalene, dihydroperoxide involving the oxidation of 2,6-diisopropylnaphthalene in the presence of a catalyst wherein the improvement comprises carrying out said oxidation in the presenc... | 03/05/1985 |
| 4450303 | Process for the oxidation of secondary-alkyl substituted benzenes High selectivities (>90%) for the production of secondary-alkyl substituted benzene hydroperoxides are achieved by heating a secondary-alkyl substituted benzene in the presence of oxygen and a samarium salt. Preferably, a free radical initiator is also pr... | 05/22/1984 |
| 4299991 | Formation of hydroperoxides Hydroperoxidizable hydrocarbons are hydroperoxidized by contacting them at hydroperoxidation conditions in the presence of a catalyst comprising a polymer containing maleimide linkages. For example, cumyl hydroperoxide can be produced by contacting cumene... | 11/10/1981 |
| 4288637 | Process for preparation of aromatic hydroperoxides Disclosed is a process for the preparation of aromatic hydroperoxides comprising contacting two liquid phases comprising an oily phase containing an aromatic compound having a secondary alkyl group and a basic aqueous phase under agitation with a molecula... | 09/08/1981 |
| 4282384 | Preparation of diisopropylebenzene hydroperoxide The hydroperoxides of diisopropylbenzene are prepared by the oxidation of diisopropylbenzene with molecular oxygen in the presence of a minute amount of solid barium oxide.... | 08/04/1981 |
| 4262143 | Preparation of hydroperoxides In the preparation of ethylbenzene hydroperoxide by reacting ethylbenzene with molecular oxygen, selectivity and reaction rate are improved by incorporating in the oxidation mixture a small amount of a hydroxide or salt of sodium or potassium.... | 04/14/1981 |
| 4192952 | Cumene oxidation using 'onium catalysts Substituted ammonium halides are used as catalysts for the oxidation of cumene to cumene hydroperoxide. Their use significantly increases the rate of oxidation and overcomes the effects of phenol contamination.... | 03/11/1980 |
| 4182909 | Polymeric catalyst composition for hydrocarbon oxidation Novel polymeric compositions and processes for employing the same as autoxidation catalysts in the oxidation of olefins and secondary and tertiary alkylaromatic compounds are provided herein. These novel compositions comprise organometallic compounds wher... | 01/08/1980 |
| 4153635 | Preparation of cumene hydroperoxide Cumene hydroperoxide is prepared by the oxidation of cumene with molecular oxygen in the presence of a minute amount of solid barium oxide.... | 05/08/1979 |
| 4089907 | Organometallic complexes as oxidation catalyst Organometallic complexes formed between tetraalkylureas (TAU) and transition metal salts, including rare earth metals, have been found to be effective catalysts for the oxidation of olefins and secondary and tertiary alkylaromatics to form valuable oxidat... | 05/16/1978 |
| 4049720 | Process for producing ଲ-isopropyl-naphthalene hydroperoxide A process for the continuous production of ଲ-isopropylnaphthalene hydroperoxide comprising oxidizing an isopropylnaphthalene mixture containing - and ଲ-isopropylnaphthalene isomers with molecular oxygen or a molecular oxygen containing ... | 09/20/1977 |
| 3937739 | Hydrocarbon conversion A process for the oxidation of a diethylbenzene feed which comprises passing a molecular oxygen containing gas into contact with said feed at a temperature between 100° and 180°C in the presence of a superbasic sulfonate of an alkaline-earth metal in an... | 02/10/1976 |
