Scouring of raw wool using Freon TF solvent
Date of Original Version
The development of a small closed-loop wool scouring method involving the use of Freon TF as solvent to combat pollution problems is described. A small-scale study reveals that a flow of the solvent through a bed of raw wool, in sequence with a water rinse, produces adequately clean wool. The method of removing the solvent from the material without significant losses is discussed. It is shown that the process is energy-efficient and produces low volumes of effluent. Clean wool grease is obtained and the solvent can be recycled.
Cui, K. H., D. J. Gray, R. S. Perry, and M. Bide. "Scouring of raw wool using Freon TF solvent." (1988). https://digitalcommons.uri.edu/che_facpubs/121