Abstract: 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.

Abstract: 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.

Abstract: 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 emulsified with an aqueous catalyst solution and brought to a temperature ranging from 50.degree. C. up to the boiling temperature of the emulsion; thereupon the oxygen is allowed to act for 2 to 20 hours and the hydroperoxide formed decomposed, in the presence of an inorganic acid as catalyst, into an hydroxyaromatic substance and a ketone.

Abstract: 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 process according to the invention is carried out in the presence of at least one agent chosen from the hydroxide or the carbonate of an alkali metal and/or alkaline-earth metal; the said agent being used in an amount of between 2 and 10 ppb (expressed as sodium hydroxide) with respect to the amount of cumene introduced. The invention likewise relates to the use of the hydroperoxide thus obtained for preparing phenol.

Abstract: 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 metal of the core being a divalent metal selected from Zn, Cu Fe, Co, Ni, Mn or mixtures thereof and another metal being a trivalent metal selected from In, Fe, Mn, Ga, and Al.

Abstract: 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 metal of the core being a divalent metal selected from Zn, Cu Fe, Co, Ni, Mn or mixtures thereof and another metal being a trivalent metal selected from In, Fe, Mn, Ga, and Al.

Abstract: 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 of a metal ion selected from cobalt, nickel, zinc and lead ions. Even in using a reaction apparatus made of an iron-containing metal generally employed in industry, a high conversion of secondary alkyl groups can be reached, and the desired polyhydroperoxy aromatic compound can be obtained in a high yield.

Abstract: 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 without appreciable decomposition by the catalyst of the resulting organic hydroperoxides, and without oxidation by the catalyst of other hydrocarbons present in the starting mixture.The process of the present invention is useful for producing organic hydroperoxides, which themselves are useful as starting materials for a number of commercial reactions, for example, phenol and acetone production.

Abstract: 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 to 2 wt. % water in the oxidation mixture.

Abstract: 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 presence of a C.sub.5 -C.sub.14 aliphatic hydrocarbon solvent.

Abstract: 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 present.

Abstract: 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 and oxygen with a catalyst comprising polymaleimide.

Abstract: 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 molecular oxygen-containing gas in the presence of a copper compound catalyst such as an inorganic salt or organic acid salt of copper, thereby to oxidize the aromatic compound to a corresponding aromatic hydroperoxide, wherein the liquid phase catalytic oxidation is carried out while maintaining the catalyst concentration in the liquid phases at 0.005 to 10 ppm as the copper atom and the pH value of the basic aqueous phase at 7.6 to 10. According to this process, by adoption of the above-mentioned specific catalyst concentration and pH value in combination, the rate of oxidation of the aromatic compound is increased and the selectivity to the hydroperoxide is improved.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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 wherein the organic compositions comprise organometallic compounds which incorporate in the backbone or on side groups in the polymer polar units capable of binding suitable metal ions which together form the oxidation catalyst.

Abstract: Cumene hydroperoxide is prepared by the oxidation of cumene with molecular oxygen in the presence of a minute amount of solid barium oxide.