Recovery and Re-Use of Zinc(++) in the Rayon Spinning Process. Compendium on Low- and Non-Waste Technology

摘要

Treatment is effected in a tank fitted with agitators. The dispersed water and organic solvent is transported to a separation tank in order to obtain separation between water and the organic phase. The extraction process is carried out in three steps with counterflow of the effluent and the organic solvent. The reaction product of Zn and D.E.H.P.A. dissolves in the organic phase. This organic phase has to be stripped in order to recover the Zn.