Method for separating wax from waste paper

Details Method for separating wax from waste paper Method for separating wax from waste paper

D - Textiles, Paper

21

C

D21C 5/02 (2006.01) D21C 9/08 (2006.01)

Patent

CA 2316362

A method for separating wax from wax containing paper. The method involves immersing the wax containing paper in a heated alkane solvent, preferably n-hexane, to dissolve the wax contained in the paper into the solvent. The dissolved wax and solvent forms a miscella which is later separated from the paper. Any residual solvent absorbed in the paper is removed therefrom. The method also involves retrieving the wax from the miscella.

Procédé servant à extraire de la cire hors de papier contenant de la cire. Ce procédé consiste à immerger le papier contenant de la cire dans un solvant d'alcane réchauffé, de préférence, n-hexane, afin de dissoudre dans le solvant la cire contenue dans le papier. La cire dissoute et le solvant constituent une miscella qu'on sépare ultérieurement du papier. On enlève du papier tout solvant résiduel que ce dernier a absorbé. Ce procédé consiste également à extraire la cire de la miscella.

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