C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 51/215 (2006.01) C07B 41/00 (2006.01) C07C 27/12 (2006.01) C07C 29/50 (2006.01) C07C 45/33 (2006.01) C07C 45/36 (2006.01) C07C 51/31 (2006.01) C07C 55/14 (2006.01) C07C 55/21 (2006.01)
Patent
CA 2403212
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.
La présente invention concerne un procédé d'oxydation d'hydrocarbures, notamment d'hydrocarbures aliphatiques saturés ramifiés ou non, d'hydrocarbures cycloaliphatiques ou alkylaromatiques en composés acides ou polyacides. Elle se rapporte plus particulièrement à l'oxydation par un agent oxydant contenant de l'oxygène moléculaire de cyclohexane en acide adipique, en présence d'acide organique à caractère lipophile et en l'absence d'acide adipique. La séparation et le recyclage du cyclohexane non oxydé, des intermédiaires d'oxydation et du catalyseurs sont plus aisés qu'en présence d'acide acétique.
Fache Eric
Fache Eric
Rhodia Polyamide Intermediates
Robic
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