PROSES PENGAMBILAN UNSUR MANGAN DAN BESI DARI HASIL SAMPING PENGOLAHAN BIJIH MANGAN TASIKMALAYA[Extraction of Manganese and Iron From Waste Treatment of Tasikmalaya Manganese Ore]

Abstract

It was important to do this research due to development of technology and enviromental issue, reducing of the mineral resource with high excess of elements content in manganese waste treatment, and the beneficial of secondary mineral used for raw materials. This research concern to utilize the waste treatment of Tasikmalaya ore manganese. Recovery process to gain valuable elements such as Mn and Fe from waste treatment of ore manganese can be done in several stages, such as dissolving into chloride acid (HCl), determination of various ratio of solid mass addition, optimation of dissolving process, and hydrolysis process by using ammonia.The results show different level of solubility, where the most effective dissolving obtained in 6N of HCl concentration. The influence of used solid mass shows that with increasing the dissolving solid mass, the ratio will decrease. The optimum condition in the various ratio of solid additions show in process to 5. In the 5 process reached a comparison of acid and aquades approximately around 2:3. Mn as a valuable element has revealed around 92.83%, whereas Fe has not been drawn yet during waste treatment process due to very low content in the Tasikmalaya ore manganese.