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ELECTROWINNING MANGANESE

ELECTROWINNING MANGANESE. Created by: Veni Verlestari 071436 Teknik Metalurgi. OUTLINE. Pendahuluan Flowsheet Proses Elektrowining Mangan Fenomena Aplikasi Referensi. PENDAHULUAN. Bentuk mangan di alam pada umumnya : pyrolusit (MnO 2 )

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ELECTROWINNING MANGANESE

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  1. ELECTROWINNING MANGANESE Created by: VeniVerlestari 071436 TeknikMetalurgi

  2. OUTLINE • Pendahuluan • Flowsheet • ProsesElektrowiningMangan • Fenomena • Aplikasi • Referensi

  3. PENDAHULUAN • Bentukmangandialampadaumumnya: pyrolusit (MnO2) • ElectrowinningMn prosespemerolehansuatulogammangandarilarutankayahasilleachingdenganmenggunakanaruslistrik • Kemurnianmangan yang didapatdenganelektrolisis >99,5 % • Electrowinningmanganlebihsulitdilakukan • Populasiproduksielectrolytic manganese diduniadikuasai South Africa

  4. ProduksiManganDunia

  5. FlowsheetHidro-ElektroMetalurgi REDUKSI BIJIH LEACHING PRODUK MANGAN PURIFICATION ELEKTROLISIS

  6. PROSES ELEKTROWINING MANGAN Elektrolisismangan Rx. PadaDiafragma SO42- + 2 H+ H2SO4 Rx diKatoda Mn2+ + 2e- Mn E° = -1,18 v + Anoda -Katoda Rx diAnoda H2O 1/2O2 + 2H+ + 2e E° = 1,23 V Mn2+ e- e - MnSO4 Mn2+

  7. Lanjutan… • Efisiensiarus = 68% • Temperatur = 36 - 38° C • Lar.elektrolit MnSO4 • pH = 8,2 – 8,8 • Katoda = 316 AISI stainless steel rapatarus = 4,3 - 5,40 A/dm² • Anoda = silver-lead alloy rapatarus = 9,70 – 15,00 A/dm²

  8. M / M2+ i (b) Metals with Intermediate Reactivity H2 / H+ + 0 E FENOMENA GambarKurvaPolarisasi hub. E- i

  9. Lanjutan… • (E) logamkurangbaikuntukpengendapan • (𝜼) (i) • (𝜼) pH • Terjadikemungkinanevolusihidrogenpadaoverpotensialhidrogen yang tinggi Solusipenggunaansekat (diafragma)

  10. APLIKASI • PengambilankembalilogamMangandaribatere • Production of electrolytic manganese metal

  11. Produk Metal Flake Manganese plated containing 5 mg/l nickel

  12. REFERENSI • Habashi, Fathi. Handbook of Extractive Metallury, Volume 4.Hydrometallurgy. • Ray&Ghosh. Principles of Extractive Metallury, 2nd ed. • Rosenquist.Principles of Extractive Metallury, McGraw Hill Kogakusha Ltd., Tokyo, 2nd ed., 1983. • www.google.com\search”keyword”

  13. Terimakasih Any question?

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