Gesellschaft Fur Biotechnologische Forschung Gmbh

Gelsellschaft Fur Biotechnologische Forschung

Aloys Huttermann

Annegret Haars

The invention relates to a method for precipitating lignin sulphonates from sulfide wastes, in that a precipitation complex develops by the addition of polycations.

Method for precipitation of sulphonated lignin from sulfide wastes

A process in which phenolic substances, particularly lignin sulfonate, are used to produce a binder for wood materials. The phenolic substance is activated by displacing it with enzymes. Phenolic groups of the phenolic substance become oxidatively polymerized by a radical mechanism, so that the phenolic substance is changed into an active binder.

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Gottingen, Germany

Aloys Huttermann