HYDROMETALLURGY, cilt.49, ss.179-187, 1998 (SCI İndekslerine Giren Dergi)
The possibility of decreasing chlorine content of a zinc dress containing 1.40% chlorine by washing with distilled water and sodium carbonate was investigated in this study. The dress sample was obtained from CINKUR which is the only primary zinc producer in Turkey. Temperature, time and solid-liquid ratio were the investigated variables in distilled water washing experiments. In addition to these variables, the effect of sodium carbonate amount was also studied in sodium carbonate washing experiments. The results showed that there was no advantage of using sodium carbonate in chlorine removal. Washing the zinc dress simply with distilled water at 95 degrees C for a short period of time such as half an hour and at a suitable solid-liquid ratio between 1:2-1:10 removed about 80% chlorine found in the dress. Chlorine content decreased from 1.40% to about 0.20-0.30% in the dress. (C) 1998 Elsevier Science B.V. All rights reserved.