화학공학소재연구정보센터
Chemical Engineering & Technology, Vol.18, No.4, 260-268, 1995
KINETIC MODELING OF ZINC LIBERATION FROM ZINC SULFIDE-CONTAINING SLUDGES IN THE VISCOSE INDUSTRY
Large quantities of sludge containing considerable amounts of zinc are obtained on treatment of waste water from the production of viscose fibres for textiles and industrial applications. A process has been proposed [7, 10] for the recovery of zinc from one such sludge, in the first step of which zinc is transferred to the liquid phase with liberation of hydrogen sulphide. In connection with this work a model was developed which provides a kinetic description of zinc liberation from various sludges and the parameters of this model fitted to the measured data by means of linear regression.