- 作者: 高志勇; 黃賢達
- 作者服務機構: 國立清華大學化學研究所
- 中文摘要: 水溶液中之鈷離子可利用各種泡沫分離技術將其自水溶液中分離。分離效率可達百分之九十九以上。在酸鹼值為11至12的鹼性溶液中可直接將氫氧化鈷以沈澱浮選方式去除。若加入鐵鹽或鋁鹽與鈷離子產生共沈澱,則可在較低之酸鹼值下,以膠體吸附浮選方式去除。若同時使用鐵鹽及鋁鹽,在酸鹼值為8時即可達成良好之分離效果。溶液中初含50ppm之鈷離子,並含0至O.1M之硝酸鈉,經泡沫分離處理後,其殘留於溶液中鈷之濃度為0.04至0.8ppm。
- 英文摘要: Co(II) was removed from aqueous systems by various foam separation techniques. Sodium laurylsulfate was used as the collector and frother. Co(II) could be effectively removed by precipitate flotation of at pH 11 to 12. Adsorbing colloid flotation of CO(II) with (方程式無法摘錄) or (方程式無法摘錄) could be run atlower pH (9 or 9.5). When both Fe(III) and Al(III) were used, the separation was complete even at pH 8.The residual Co(II) levels in the range 0.04 to 0.80 ppm were achieved for solutions initially containing50 ppm Co(II) and 0 to 0.1 M (方程式無法摘錄) .
- 中文關鍵字: foam separation; adsorbing colloid flotation; cobalt
- 英文關鍵字: --