In sulphite mills, lignin is extracted as lignosulphonate. There are many uses for lignosulphonate, for example in production of concrete and drywall, for facilitating oil and gas drilling, as raw material for several chemicals, and as a dispersant in water treatment formulations and textile dyes.
Alfa Laval supplies membranes for filtrating out lignosulphonate from spent sulphite liquor. These filters are characterized by:
BIOTECH Lignosulfonate are using Alfa Laval ultrafiltraiton modules
Learn about BIOTECH Lignosulfonate Handels-GesmbH’s experiences from producing lignosulphonate using Alfa Laval ultrafiltration modules.
For more information:
Contact your local Alfa Laval representative.