磷酸提鈾製程中膠體界面物的處理研究

Study of Treatment of The Third-Phase Crud in The Phosphoric Acid Process for Uranium Recovery

潘本立(Pene-Lie Pane) ； 朱信忠(Shin-Jon Ju) ； 王大屏(Dah-Pin Wong) ； 陳勝朗(John S. Chen)

《鑛冶：中國鑛冶工程學會會刊》 31卷3期 (1987/09) Pp. 89-96

https://doi.org/10.30069/MM.198709_31(3).0009

摘要

溶劑萃取法為囘收低品位礦物内貴重元素，具有經濟效益的方法之一。此濕法冶金技術常遭遇的困擾，為第三相膠體界面物的處理。本所磷酸提鈾場其製程產生的第三相界面物，不僅消耗大量煤油，且在酸液品質較差時，常會迫使運轉中斷。本文針對該場界面物之處理，做一詳細的探討，自實驗室階段而至單元設備進行系列研究；綜合研究結果，在該場增建高壓榨濾系統一套，其操作方式為泵濾、榨濾依序自動控制重覆，過濾之適當操作壓力分別為；泵濾4kg/cm^2、榨濾12kg/cm^2。多年的運轉結果，證明高壓榨濾法，可以經濟地快速處理有機泥造成的第三相界面物。

並列摘要

The solvent extraction technique, though economic and effective in recovering the resources in low grade ores, is frequently frustrated in the disposal of the third-phase crud. The third-phase crud in the uranium recovery from phosphoric acid (URPA) plant of Institute of Nuclear Energy Research not only consumed a large quantity of kerosene, but also caused plant shut-down very often. Therefore, many attempts have been made either chemically or physically, to studying the feasibility of treating the crud of the URPA plant, by the erection of a high pressure squeezing filtration system. The operation sequence of this system consists of crud feeding and pumping filtration. The suitable pressures are 4 kg/cm^2 for the pumping filtration and 12kg/cm^2 for the squeezing filtration. It is ascertained after many years of operation that the crud produced from the humus can be handled with success by a high pressure squeezing filter press.