Scholarly Literature: Recent submissions

Now showing items 3081-3090 of 3884

Extraction of nickel using Acorga P-5300 extractant

Rao, K.S.; Chaudhury, G.R. (Transactions Of The Indian Institute Of Metals, 52(1), 1999: 23-27)

Nickel extraction studies were carried out using Acorga P-5300 extractant. Various extraction parameters were studied such as pH,concentration of ammonium salt and common anion. Nickel extraction was observed to be more ...
The role of surfactant adsorption in the improved dewatering of fine coal

Singh, B.P. (Fuel, 78(4), 1999: 501-506)

This paper describes the adsorption kinetics and isotherms for cationic and anionic surfactants on coal surfaces. Both types of surfactants adsorb significantly rapidly; although the cationic surfactant achieved much higher ...
The recovery of fine iron minerals from quartz and corundum mixtures using selective magnetic coating

Prakash, S.; Das, B.; Mohanty, J.K.; Venugopal, R. (International Journal Of Mineral Processing, 57(2), 1999: 87-103)

The recovery of hematite fines from quartz and corundum using selective magnetic coating was studied as a function of pH, particle size, magnetic colloidal concentration, magnetic field strength and ratio of hematite:quartz. ...
Thermal transformation of trinuclear Fe(III) acetato complex intercalated montmorillonite

Parida, K.M.; Mishra, T.; Das, D.; Chintalpudi, S.N. (Applied Clay Science, 15(5-6), 1999: 463-475)

Fe(III) pillared montmorillonite was prepared using trinuclear acetato complex of Fe(III) as the pillaring agent and the resulted material was characterised by different analytical techniques. Basal spacing of the material ...
Effect of calcination temperature on Indian Ocean manganese nodules. Mossbauer, XRD, FT-IR and TG-DTA studies

Parida, K.; Samal, A.; Das, D.; Chintalpudi, S.N. (Thermochimica Acta, 325(1), 1999: 69-76)

The effect of calcination temperature on the physico-morphological properties of Indian Ocean manganese nodules has been investigated. Mossbauer, XRD, FT-IR spectroscopic and TG-DTA studies on the manganese nodules gave ...
Kinetics of leaching of a gibbsitic bauxite with hydrochloric acid

Reddy, B.R.; Mishra, S.K.; Banerjee, G.N. (Hydrometallurgy, 51(1), 1999: 131-138)

Leaching kinetics for the removal of iron from a low grade gibbsitic bauxite with hydrochloric acid were studied. Temperature and acid concentration had strong influence on the removal of iron. Calcium removal was quantitative ...
Extraction studies of cobalt (II) and nickel (II) from chloride solutions using Na-cyanex 272. Separation of Co(II)/Ni(II) by the sodium salts of D2EHPA, PC88A and Cyanex 272 and their mixtures

Sarangi, K.; Reddy, B.R.; Das, R.P. (Hydrometallurgy, 52(3), 1999: 253-265)

Solvent extraction studies of cobalt and nickel have been carried out from 1 M chloride solutions using the sodium salt of Cyanex 272 as extractant diluted with kerosene with tri-n-butyl phosphate (TBP) employed as a phase ...
Rate process of the reduction leaching of manganese nodules in dilute HCl in presence of pyrite - Part I. Dissolution behavior of iron and sulphur species during leaching

Kanungo, S.B. (Hydrometallurgy, 52(3), 1999: 313-330)

An attempt has been made to study the dissolution behavior of Fe (II), Fe (III), SO42- and release of elemental sulphur (S degrees) during the reduction leaching of ground manganese nodules of the Indian Ocean origin in ...
Rate process of the reduction leaching of manganese nodules in dilute HCl in presence of pyrite - Part II: Leaching behavior of manganese

Kanungo, S.B. (Hydrometallurgy, 52(3), 1999: 331-347)

The formal kinetics of the dissolution of MnO2 from two different manganese nodule samples of Indian ocean origin in dilute HCl and in the presence of a low grade pyrite: have been studied under various experimental ...
Reduction of Mn(IV) oxide by (NH4)(2)SO3 in the presence of metal ions in ammoniacal medium

Das, P.K.; Mishra, D.; Anand, S.; Das, R.P. (Hydrometallurgy, 52(1), 1999: 91-104)

The reduction of manganese dioxide with ammonium sulphite in the presence of Cu(II), Ni(II) and Co(II) has been studied. It was observed that the catalytic activity is in the order Cu(II)> Co(II)> Ni(II). The activation ...

Now showing items 3081-3090 of 3884

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