Pemurnian Emas dari Bijih Emas Berkadar Rendah Menggunakan Karbon Aktif dari Arang Tempurung Kelapa
| Main Authors: | Mulyasuryani, Ani, Ismuyanto, Bambang, Purwonugroho, Danar |
|---|---|
| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
Jurnal Natur Indonesia
, 2012
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| Online Access: |
http://ejournal.unri.ac.id/index.php/JN/article/view/192 http://ejournal.unri.ac.id/index.php/JN/article/view/192/186 |
Daftar Isi:
- The activated carbon from the coconut shell can be used as an adsorbent for the recovery of gold. The optimum condition for gold recoverywas obtained at pH 3 (for adsorption) and pH 5 (for desorption) with 1 M thyocyanate solution and a 5 cm length of column (the mass ofactivated carbon is 20 grams). In this condition, the average gold recovery is 90.00%, silver 7.28% and copper 4.93%, that were used severalgold ore samples. The average purity degree of gold is 49.67%, depend on the concentration of gold, silver and copper in the gold oresample.