A - Human Necessities – 62 – D
Patent
A - Human Necessities
62
D
A62D 3/36 (2007.01) A62D 3/30 (2007.01)
Patent
CA 2389081
The invention concerns the use of an acid selected among the C2-C4 percarboxylic acids for decontaminating materials soiled by organophosphorous and/or organosulphurous compounds. The percarboxylic acid is in particular in the form of an anhydrous or substantially anhydrous organic solution of said percarboxylic acid, such as is obtained by reacting an aqueous hydrogen peroxide solution with the corresponding carboxylic acid miscible in water, in the presence of a catalyst and an organic solvent optionally the one whereby water has been continuously eliminated from the reaction medium by azeotropic distillation.
On décrit l'utilisation d'un acide choisi parmi les acides percarboxyliques en C2 à C4 dans la décontamination de matériaux souillés par des composés organophosphorés et/ou organosoufrés. L'acide percarboxylique se présente notamment sous la forme d'une solution organique anhydre ou sensiblement anhydre dudit acide percarboxylique, telle qu'elle a été obtenue par réaction d'une solution aqueuse de peroxyde d'hydrogène avec l'acide carboxylique correspondant miscible à l'eau, en présence d'un catalyseur et d'un solvant organique dont éventuellement celui qui a permis l'élimination continue par distillation azéotropique de l'eau du milieu réactionnel.
Da Conceicao Louis
Lion Claude
Pralus Christian
Schirmann Jean-Pierre
Atofina
Robic
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