PENGARUH WAKTU DAN RASIO S/L LEACHING BIJIH NIKEL LIMONIT DENGAN AMMONIA AMMONIUM KARBONAT
| Main Author: | SALSABILA, SALSABILA |
|---|---|
| Format: | Thesis NonPeerReviewed Book |
| Bahasa: | ind |
| Terbitan: |
, 2022
|
| Subjects: | |
| Online Access: |
https://eprints.untirta.ac.id/15602/1/Salsabila_3334170063_Skripsi.pdf https://eprints.untirta.ac.id/15602/ |
Daftar Isi:
- Limonite nickel ore is a low-grade nickel ore that has the potential to be further utilized as a major alternative in nickel production, so it is necessary to carry out a process that can increase the grade of limonite nickel ore because it has the potential to be a raw material for nickel production in the future. Limonite nickel ore can be processed through reduction roasting and leaching processes. Reduction roasting is done to change the ore compound so that it is easily dissolved in the next process. Therefore, it is necessary to carry out a hydrometallurgical process as a follow-up process by carrying out a leaching process with ammonia ammonium carbonate leaching agent to make the extraction process becomes more effective. This study aims to examine the effect of time, Solid/Liquid ratio, and aeration on the percentage of Ni extraction in the leaching process of limonite nickel ore with ammonia ammonium carbonate. The leaching time variations used were 60, 120, 180, and 240 minutes with variations in the S/L ratio of 10:100, 15:100, and 20:100 gr/ml which were leached without aeration and with aeration. The filtrate from the leaching process was analyzed using the ICP-OES instrument to determine the level of Ni obtained. The highest Ni extraction percentage of 98.3% was obtained under leaching process conditions without aeration with an S/L ratio of 15:100 gr/ml for 240 minutes.