Process and installation for preparing cellulose waste lye

Details Process and installation for preparing cellulose waste lye Process and installation for preparing cellulose waste lye

D - Textiles, Paper

21

C

D21C 11/00 (2006.01) B01D 61/42 (2006.01) C02F 1/469 (2006.01)

Patent

CA 2157394

In an electrochemical treatment the cationogenous components are removed from the cellulose waste lye containig lignin sulphonates in the anode space. Lignin sulphonic acids are produced from the waste lye.

Lors d'une opération de traitement électrochimique, on extrait les constituants cationogènes de la lessive résiduaire de cellulose contenant des sulfonates de lignine et se trouvant dans l'espace anodique. Des acides sulfoniques de lignine sont obtenus à partir de cette lessive résiduaire.

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