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| Number | Title | Issue Date |
| 7446232 | Process for oxidizing alkylaromatic compounds In a process for oxidizing alkylaromatic compounds to the corresponding hydroperoxide, an alkylaromatic compound of general formula (I): in which R1 and R2 each independently represents an alkyl group ... | 11/04/2008 |
| 7038089 | Process for preparation of hydroperoxides The invention relates to a process for preparing hydroperoxides from their corresponding hydrocarbons which comprises oxidizing said hydrocarbons, particularly ethylbenzene, with an oxygen containing gas in the presence of a catalyst comprising a cyclic imide compou... | 05/02/2006 |
| 6888034 | Process for oxidation of cyclohexane Process for oxidizing cyclohexane in which oxygen is contacted with cyclohexane at a pre-selected feed rate in a first reaction zone and unconsumed oxygen is contacted with cyclohexane in a second reaction zone in which the cyclohexane feed rate is lower than the pr... | 05/03/2005 |
| 6028193 | Method for producing aryl aklyl hydroperoxides A method for producing aryl alkyl hydroperoxides which comprises selectively oxidizing an aryl alkyl hydrocarbon having the formula: ##STR1## wherein P and Q are hydrogen or an alkyl and may be the same or different from each other; x is an integer o... | 02/22/2000 |
| 5744651 | Process for preparing peroxidic perfluoropolyoxyalkylenes Tetrafluoroethylene oxidation process at temperatures comprised between -100° C. and -40° C., in absence of Uv radiations, and by operating in the presence of a chemical initiator containing at least one F--X bond, wherein X is oxygen or halogen, in the... | 04/28/1998 |
| 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 |
| 5196597 | Oxidation of isobutane to tertiary butyl hydroperoxide The present invention relates to a process for the oxidation of isobutane in the liquid phase to produce TBA and TBHP wherein at least a portion of the oxidation product mixture is obtained from the condensate of vapors from the oxidation zone.... | 03/23/1993 |
| 5017729 | Phenol preparation process and propylene recovery therefrom Phenol is produced in a recycle manner by (a) reacting benzene with propylene to synthesize cumene, (b) oxidizing the cumene of step (a) into cumene hydroperoxide, (c) acid cleaving cumene hydroperoxide into phenol and acetone, (d) hydrogenating the aceto... | 05/21/1991 |
| 4996372 | Process for oxidizing 2,6-diisopropylnaphthalene In a process for producing 2,6-dihydroxynaphthalene from 2,6-diisopropylnaphthalene, 2,6-diisopropylnaphthalene is oxidized in the presence of a specific proportion of a basic compound to hydroxylate or hydroperoxylate 2,6-diisopropylnaphthalene in a high... | 02/26/1991 |
| 4935551 | Hydroperoxidation of diisopropylbenzene m-Diisopropylbenzene dihydroperoxide is produced in good yield in a continuous process by the oxidation of diisopropylbenzene, comprised of major amounts of the m-isomer and less than 6% of the o-isomer, under anhydrous, non-alkaline conditions with oxyge... | 06/19/1990 |
| 4906790 | Method of oxidizing secondary alkyl substituted naphtalenes and a process of producing isopropylnaphthols A method of oxidizing secondary alkyl substituted naphthalenes with molecular oxygen in a liquid phase to hydroperoxides, carbinols or mixtures of these, which comprises: oxidizing the secondary alkyl substituted naphthalenes in the presence of an aromati... | 03/06/1990 |
| 4709088 | Process for producing 2,6-naphthalene-dicarboxylic acid A process for producing 2,6-naphthalenedicarboxylic acid which comprises oxidizing 2,6-diisopropylnaphthalene or its oxidation product as a starting material with molecular oxygen in a reaction medium containing at least 50% by weight of an aliphatic mono... | 11/24/1987 |
| 4579978 | Bibenzyl hydroperoxide synthesis Substantially quantitative yields of bibenzyl hydroperoxide and bibenzyl dihydroperoxide can be obtained when oxygen is reacted with bibenzyl (1,2-diphenylethane) in the presence of a minor amount of sodium bicarbonate at a temperature within the range of... | 04/01/1986 |
| 4455440 | Method for producing 1,3,5-triisopropylbenzene trihydroperoxides In a method for producing 1,3,5-triisopropylbenzene trihydroperoxides by bringing 1,3,5-triisopropylbenzene or its homologs into contact reaction with oxygen or an oxygen-containing gas in the co-existence of an aqueous alkali solution, a method for produ... | 06/19/1984 |
| 4408082 | Oxidation of isobutane in the dense phase and at low oxygen concentration In the direct oxidation of isobutane with molecular oxygen at moderate isobutane conversion levels (up to about 20%) in a reaction mixture maintained at a pressure greater than its critical pressure and at a temperature in the range from about 140° C. to... | 10/04/1983 |
| 4408081 | Process for oxidation of isobutane In continuous preparation of tertiary-butyl hydroperoxide by the direct oxidation of isobutane in dense-phase reaction mixture at a pressure in excess of the critical pressure of the mixture, and under conditions relating to temperature and to oxygen and ... | 10/04/1983 |
| 4404406 | Oxidation of isobutane under super-critical conditions In the preparation of tertiary-butyl hydroperoxide by the direct oxidation of isobutane, the production of tertiary-butyl hydroperoxide, expressed as the quantity of the compound prepared per unit of reactor volume per unit of time, is enhanced by conduct... | 09/13/1983 |
| 4329514 | Method for controlling runaway decomposition in the preparation of hydrocarbon hydroperoxides Episodes of accelerated decomposition, or runaway, during the preparation of hydrocarbon hydroperoxides by reaction of hydrocarbons with molecular oxygen at elevated temperature, are brought under control through the addition to the oxidation reaction mix... | 05/11/1982 |
| 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 |
| 4293719 | Manufacture of hydroperoxides Hydroperoxides, such as cyclohexylbenzene hydroperoxide, are manufactured by the oxidation of aryl compounds, such as cyclohexylbenzene, in the presence of a catalyst selected from the group consisting of C6 -C18 primary amines and p... | 10/06/1981 |
| 4136123 | Use of water soluble metallo phthalocyanines as oxidation catalysts Metallo phthalocyanines which have been rendered water soluble by substituting an alkali metal or alkaline earth metal sulfate or carboxylate salt onto the phthalocyanine structure have been found to be effective catalysts for the oxidation of aromatic co... | 01/23/1979 |
| 4088699 | Production of aralkyl tertiary hydroperoxides A portion of a stream obtained by the oxidation of an aryl tertiary alkane and containing primarily aralkyl tertiary monohydroperoxide, substantial amounts of aryl tertiary alkane, smaller amounts of keto aryl tertiary alkanols, aralkyl tertiary dialkanol... | 05/09/1978 |
| 4080386 | Production of aralkyl tertiary hydroperoxides A portion of a recycle stream obtained as a result of the oxidation of an aryl tertiary alkane and containing aralkyl tertiary monohydroperoxide, substantial amounts of unreacted aryl tertiary alkane and lesser amounts of poly-oxy-functional oxidation by-... | 03/21/1978 |
| 3978138 | Process for preparing p-diisopropyl-benzenedihydroperoxide P-Diisopropylbenzene dihydroperoxide is prepared by contacting p-diisopropylbenzene with molecular oxygen, adding an alkali metal hydroxide or an alkaline earth metal hydroxide to the reaction mixture to precipitate p-diisopropylbenzenedihydroperoxide, se... | 08/31/1976 |
| 3978142 | Process for producing polyphenols A portion of a recycle stream obtained from the reaction mixture resulting from the oxidation of an aryl tertiary alkane and containing primarily aralkyl tertiary monohydroperoxide, unreacted aryl tertiary alkane, a minor amount of aralkyl tertiary polyhy... | 08/31/1976 |
| 3954879 | Process for producing hydroperoxides A process for producing a hydroperoxide in highly concentrated form by oxidation of its corresponding liquid hydrocarbon with oxygen or an oxygen-containing gas while simultaneously subjecting the liquid reaction mixture to a carrier gas distillation to r... | 05/04/1976 |
| 3953521 | Process for the continuous production of dihydroperoxides Meta-and/or paradiisopropylbenzene dihydroperoxides are continuously produced by oxidizing meta-and/or paradiisopropylbenzenes in liquid phase through contact with oxygen or a gas containing oxygen, while keeping the concentration of meta-and/or paradiiso... | 04/27/1976 |
