BY. IKSAN MUSTOFA3334071407

Electrowinning Of Manganese

1

OUTLINE

INTRODUCTION TYPICAL ANALYSIS OF MANGANESE ORE MANGANESE ELECTROWINNING

PROCESS REACTION UPON ELECTROLYSIS PHENOMENON REFERENCES

2

INTRODUCTION

Manganese mineral spread over widely in is multiform.

Manganese is even more difficult to depisite

requiring result of manganese extraction with high purification rate.

manganese obtained with reducing manganese oxide with natrium, magnesium, aluminum or with electrolysis process. 3

TYPICAL ANALYSIS OF MANGANESE ORE

4

MANGANESE ELECTROWINNING PROCESS

5

REACTION UPON ELECTROLYSIS

Reaction in chatode Mn 2+ + 2e- Mn E° = -1,18 vReaction in anodeH2O 1/2O2 + 2H+ + 2e E° = 1,23 V Reaction in diaphragmSO42- + 2 H+ H2SO4

Electrolyte solution = MnSo4pH = 8,2 – 8,4Current efficiency = 40%

6

PHENOMENON

M / M2+

H2 / H+

E

+

i

0

High Reactivemetal

–

7

REFERENCES

Rosenquist. Principles of Extractive Metallurgy, McGraw Hill Kogakusha Ltd., Tokyo, 2nd ed., 1983.

Ray&Ghosh. Principles of Extractive Metallury, 2nd ed.

http://www.freepatentsonline.com/2339911.html di akses tanggal 13 April, 2011

http://www.chem-is-try.org/tabel_periodik/mangan / di akses tanggal 13 April, 2011

HARRIS M, Pr. Eng., B.Se. (Eng.),1977, The production of electrolytic manganese in South Africa, JOURNAL OF THE SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY. Page 137-142.

8

THANK’S FOR ATTENTION…..!!!

9