| dc.contributor.author |
Nayak, B.B. |
|
| dc.contributor.author |
Mishra, K.G. |
|
| dc.contributor.author |
Paramguru, R.K. |
|
| dc.date.accessioned |
2018-10-01T12:21:43Z |
|
| dc.date.available |
2018-10-01T12:21:43Z |
|
| dc.date.issued |
1999 |
|
| dc.identifier.citation |
Journal Of Applied Electrochemistry, 29(2), 1999: 191-200 |
|
| dc.identifier.issn |
0021-891X |
|
| dc.identifier.uri |
http://ore.immt.res.in/handle/2018/838 |
|
| dc.description.abstract |
This paper describes a study of the kinetics and mechanism of MnO2 dissolution in H2SO4 in the presence of pyrite through leaching and electrochemical parameters. Manganese(IV) was found to dissolve mainly through reduction by the ferrous ion generated during oxidation of pyrite by the ferric ion. The oxidation which is slower and rate controlling may proceed through two different reactions, one producing SO and the other SO42-. Manganese dissolution runs at the same rate as that of pyrite oxidation by maintaining ferrous ion concentration at a much lower level than that of ferric. Kinetic equations based on corrosion coupling principles are developed to explain the observed leaching behaviour. |
|
| dc.language |
en |
|
| dc.publisher |
Kluwer Academic Publishers |
|
| dc.relation.isreferencedby |
SCI |
|
| dc.rights |
Copyright [1999]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository. |
|
| dc.subject |
Chemical Sciences |
|
| dc.title |
Kinetics and mechanism of MnO2 dissolution in H2SO4 in the presence of pyrite |
|
| dc.type |
Journal Article |
|
| dc.affiliation.author |
CSIR-IMMT, Bhubaneswar 751013, Odisha, India |
|