Leaching of manganese from ferromanganese slag (Garividi, Vizianagram Dt.) was effectively done by using both hydrochloric and perchloric acid solutions. It was noticed that the rate of leaching is more temperature sensitive and dependent on the nature of the acid solution used in these studies.
Solvent extraction of manganese [Mn (II)] by
tri-n-octylamine (TOA) dissolved in xylene from hydrochloric and perchloric
acid media has been carried out. Extractions are nearly quantitative from both
acid solutions. The effect of concentrations of acid, metal, and TOA and
diluent on the extraction has been studied. Maximum efficiency is obtained with
xylene as diluent. Stripping of manganese from the organic phase was
quantitatively achieved with 1.0M HNO3. The extracted species was
also identified as [Mn X2. (2TOA)], (X=chloride or perchlorate).
Attempts made for the estimation of manganese were
successful in the presence of other metals and impurities usually associated
with ferromanganese slag.
Author (s) Details
A.V.L.N.S.H.
HARIHARAN
Department of Chemistry, GIS, GITAM University, Visakhapatnam – 530 045,
India.
K.Y. KARUNA
Department of Chemistry, GIS, GITAM University, Visakhapatnam – 530 045,
India.
Please see the book here:- https://doi.org/10.9734/bpi/cmsrf/v2/5174
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