Abstract: A method for oxidizing hydrocarbons, in particular saturated hydrocarbons, for producing peroxides, alcohols, ketones, aldehydes and/or diacids is described. Also described, is a method for oxidizing a cycloaliphatic saturated hydrocarbon using molecular oxygen for producing ketones/alcohols, and more precisely for oxidizing cyclohexane into cyclohexanol and cyclohexanone using molecular oxygen.

Abstract: A process for preparing a deperoxidation catalyst comprising chromium as the main catalytic element is described. Also described, is a process for preparing an organic solution of a chromic acid ester. The solution can be used as a catalyst in a deperoxidation of an alkyl peroxide in a process for manufacturing cyclohexanol/cyclohexanone by oxidation of cyclohexane.

Abstract: 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.

Abstract: A method for oxidizing hydrocarbons, in particular saturated hydrocarbons, for producing peroxides, alcohols, ketones, aldehydes and/or diacids is described. Also described, is a method for oxidizing a cycloaliphatic saturated hydrocarbon using molecular oxygen for producing ketones/alcohols, and more precisely for oxidizing cyclohexane into cyclohexanol and cyclohexanone using molecular oxygen.

Abstract: 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.

Abstract: A process for preparing a deperoxidation catalyst comprising chromium as the main catalytic element is described. Also described, is a process for preparing an organic solution of a chromic acid ester. The solution can be used as a catalyst in a deperoxidation of an alkyl peroxide in a process for manufacturing cyclohexanol/cyclohexanone by oxidation of cyclohexane.

Abstract: The present invention relates to a continuous method for oxidizing saturated cyclic hydrocarbons by oxygen to obtain a mixture of hydroperoxides, alcohols and ketones. It relates more particularly to a method for oxidizing cyclohexane in a column forming a bubble reactor, for the formation of cyclohexyl hydroperoxide, cyclohexanol and cyclohexanone. According to the invention, the column may be supplied with oxygen-enriched air, while meeting the maximum oxygen concentration requirements in the headspace of the reactor to avoid any risk of explosion.

Abstract: The invention relates to a method for the preparation of cyclohexanone from cyclohexane. The invention relates more particularly to a method for the production of cyclohexane whose impurity content enables cyclohexanone to be used as a raw material for the production of e-caprolactam. The inventive method consists in treating the mixture of cyclohexanol/cyclohexanone arising from oxidation of cyclohexane by oxygen in a dehydrogenation stage in order to transform cyclohexanol into cyclohexanone and the impurities present such as cyclopentenal. The inventive method makes it possible to obtain highly pure cyclohexanone which is compatible when used as a raw material in the synthesis of e-caprolactam.

Abstract: The present invention relates to a continuous method for oxidizing saturated cyclic hydrocarbons by oxygen to obtain a mixture of hydroperoxides, alcohols and ketones. It relates more particularly to a method for oxidizing cyclohexane in a column forming a bubble reactor, for the formation of cyclohexyl hydroperoxide, cyclohexanol and cyclohexanone. According to the invention, the column may be supplied with oxygen-enriched air, while meeting the maximum oxygen concentration requirements in the headspace of the reactor to avoid any risk of explosion.

Abstract: The invention relates to a method for the preparation of cyclohexanone from cyclohexane. The invention relates more particularly to a method for the production of cyclohexane whose impurity content enables cyclohexanone to be used as a raw material for the production of e-caprolactam. The inventive method consists in treating the mixture of cyclohexanol/cyclohexanone arising from oxidation of cyclohexane by oxygen in a dehydrogenation stage in order to transform cyclohexanol into cyclohexanone and the impurities present such as cyclopentenal. The inventive method makes it possible to obtain highly pure cyclohexanone which is compatible when used as a raw material in the synthesis of e-caprolactam.

Abstract: The present invention relates to a method of purifying aqueous effluents containing in particular peroxidized compounds. It relates more particularly to a method of purifying aqueous effluents comprising a method of anaerobic biological decomposition of the compounds contained in the effluent. The effluents are treated prior to their anaerobic biological decomposition, in a deperoxidation step in order to reduce the concentration of peroxide and to avoid the harmful effect of these compounds on the enzymes or bacteria.

Abstract: This invention relates to a process for preparing phenates substituted by halogen groups of the corresponding phenols which comprises reacting a halo-substituted benzene with a powdered base having a particle size of less than 4 mm in the presence of an aprotic polar solvent.

Abstract: Process for the preparation of 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran from ortho-methallyloxyphenol or ortho-methallylpyrocatechol.It consists in heating ortho-methallyloxyphenol or ortho-methallylpyrocatechol in the presence of an aluminum derivative.2,3-Dihydro-2,2-dimethyl-7-hydroxybenzofuran can be used for the synthesis of carbofuran, which is a polyvalent insecticide.