Method for reducing the dioxin content of bleaching earth

Details Method for reducing the dioxin content of bleaching earth Method for reducing the dioxin content of bleaching earth

B - Operations, Transporting

01

J

B01J 20/12 (2006.01) C01B 33/38 (2006.01) C01B 33/40 (2006.01) C01B 33/42 (2006.01)

Patent

CA 2557906

The invention relates to a method for reducing the dioxin content of a composition comprising crude clay that contains at least one dioxin or a bleaching earth that contains dioxin. Said method is characterised in that the composition is heated to a temperature ranging between 125 and 650 ~C.

La présente invention concerne un procédé pour réduire la teneur en dioxine d'une composition contenant au moins une argile brute qui renferme de la dioxine ou une terre décolorante qui renferme de la dioxine. Cette invention est caractérisée en ce que ladite composition est chauffée à une température allant d'environ 125 à 650 ·C.

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