摘要:
The invention concerns a method for making carboxylic acids by oxidizing an alkyl hydroperoxide compound. More particularly, the invention concerns oxidation of a cyclohexyl peroxide into an adipic acid with an oxidizing agent containing molecular oxygen or an oxygen-containing gas in the presence of an oxidation catalyst including a metal belonging to the groups of transition metals.
摘要:
The invention concerns a method for decomposition of organic hydroperoxides, in the presence of a catalyst. It provides a method for decomposition of organic hydroperoxides in the presence of a catalyst in an alcohol and ketone mixture wherein the catalyst comprises at least a catalytically active ruthenium-based metal element incorporated in a solid support selected from the group consisting of metal oxides and carbons such as carbons obtained by pyrolysis of organic compounds. The inventive method is particularly useful for decomposition of chemical intermediates such as cyclohexyl hydroperoxide.
摘要:
Process for the oxidation of an aliphatic or cycloaliphatic hydrocarbon (optionally substituted) or an alkylaromatic hydrocarbon and/or alcohols and ketones in a liquid medium by molecular oxygen in the presence of a manganese-based catalyst and an organic acid. The organic acid compound conforms to the formula(I) :- HOOC - Ar -(R)n - in which Ar = aromatic radical of one ring or several condensed rings; n = 1, 2 or 3; and R = a radical of formula -C(R1,R2,R3) (R1, R2, R3 = 1 - 4C alkyl or F).
摘要:
The invention concerns the treatment of reaction mixtures derived from an oxidation reaction of cyclohexane into adipic acid and more particularly the separation of the different constituents of said mixtures and the purification of the adipic acid.
摘要:
The invention concerns a method for oxidising with oxygen or an oxygen-containing gas, hydrocarbons into corresponding carboxylic acids, alcohols and/or ketones or alcohols and/or ketones into corresponding carboxylic acids. More precisely the invention concerns a method for oxidising hydrocarbon, alcohol and/or ketone using oxygen or an oxygen-containing gas, in liquid phase and in the presence of a catalyst dissolved in a reaction medium. The invention is characterised in that the catalyst comprises a soluble manganese and/or cobalt compound, at least a soluble chromium compound and at least a soluble iron compound.
摘要:
The invention concerns a method for oxidising hydrocarbons, in particular saturated aliphatic hydrocarbons, whether branched or not, cycloaliphatic and alkylaromatic hydrocarbons into acid or polyacid compounds. More particularly, the invention concerns oxidation of cyclohexane into adipic acid with an oxidising agent containing molecular oxygen, in the presence of a lipophilic organic acid and in the absence of adipic acid. The separation and recycling of the non-oxidised cyclohexane from the oxidation intermediates and the catalysts are made easier than in the presence of acetic acid.
摘要:
The invention concerns a method for oxidising with oxygen or an oxygen-containing gas, hydrocarbons into corresponding carboxylic acids, alcohols and/or ketones or alcohols and/or ketones into corresponding carboxylic acids. More precisely the invention concerns a method for oxidising hydrocarbon, alcohol and/or ketone using oxygen or an oxygen-containing gas, in liquid phase and in the presence of a catalyst dissolved in a reaction medium. The invention is characterised in that the catalyst comprises a soluble manganese and/or cobalt compound, at least a soluble chromium compound and at least a soluble iron compound.
摘要:
The invention relates to a method for producing a mixture of alcohols/ketones by decomposing an alkyl hydroperoxide, particularly to a method for producing a cyclohexanol/cyclohexanone by decomposing cyclohexyl hydroperoxide in the presence of a heterogeneous catalyst. According to the invention, the reaction is carried out in the presence of a heterogeneous catalyst containing an organometallic segment fixed on the surface of a porous solid compound such as silicon. The organometallic segment ca be formula (I).
摘要:
The invention relates to a method for oxidising hydrocarbons, particularly branched or non-branched saturated aliphatic hydrocarbons, cycloaliphatic or alkyl aromatic hydrocarbons, into alcohol, ketone and/or acid, polyacid compounds. More specifically, the invention relates to the oxidation, using an oxidising agent containing molecular oxygen, of cyclohexane into cyclohexanol, cyclohexanone and/or adipic acid. The oxidation is carried out in the presence of a catalytic system comprising a catalyst based on at least one metal compound and a co-catalyst comprising an imide function such as N-bromosuccinimide, N-bromomaleimide, N-bromohexahydrophtalimide, N,N'-dibromocyclohexanetetracarboximide, N-bromophtalimide, N-bromotrimellitimide, N,N'-dibromopyromellitimide.
摘要:
The invention relates to a method for the oxidation of hydrocarbon in carboxylic acid, alcohol and/or corresponding ketone or alcohol and/or ketone in corresponding carboxylic acid by oxygen or a gas containing oxygen. The inventive method consists in oxidation of hydrocarbon, alcohol and/or ketone with the aid of oxygen or a gas containing oxygen in a liquid phase and in the presence of a catalyst that is dissolved in the reaction mixture, characterized in that the catalyst comprises a soluble manganese compound and at least one soluble chrome compound.