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ORE at CSIR-Institute of Minerals and Materials Technology: Recent submissions

Now showing items 3481-3490 of 3828

PREPARATION OF STABLE T'-ZIRCONIA

Bhattacharjee, S.; Syamaprasad, U.; Galgali, R.K.; Mohanty, B.C. (Materials Letters, 15(4), 1992: 281-284)

A process for preparation of Y-stabilised t'-zirconia using a thermal plasma technique is presented. The plasma treatment of premixed oxides to yield t'-zirconia was carried out in an extended arc plasma reactor. The product ...
ENHANCEMENT OF OPERATING CURRENT-DENSITY IN A COPPER ELECTROWINNING CELL

Krishna, P.G.; Das, S.C. (Hydrometallurgy, 31(3), 1992: 243-255)

Efforts have been made to enhance the operating current density of an open channel cell to obtain high-quality cathode copper. Since increase of copper concentration and circulation rate did not improve the nature of the ...
IRON REJECTION THROUGH JAROSITE PRECIPITATION DURING ACID PRESSURE LEACHING OF ZINC LEACH RESIDUE

Acharya, S.; Anand, S.; Das, R.P. (Hydrometallurgy, 31(1-2), 1992: 101-110)

Electrolytic zinc processes produce leach residues containing 15-18% zinc and 27-37% iron. In India large quantities of such residues are stock-piled at zinc plants. During leaching of a typical sample of stock-piled residue ...
Kinetics of zinc and cobalt sulfide precipitation and its application in hydrometallurgical separation

Mishra, Pratima Kumari; Das, R.P. (Hydrometallurgy, 28(3), 1992: 373-379)

Zinc and cobalt sulphides are precipitated from an ammoniacal solution containing ammonium sulphate by controlled addition of sodium sulphide solution. The kinetics of the reaction have been studied. Zinc shows first order ...
EXTRACTIONS OF ZINC FROM AMMONIACAL SOLUTIONS BY HOSTAREX DK-16

Rao, K.S.; Sahoo, P.K.; Jena, P.K. (Hydrometallurgy, 31(1-2), 1992: 91-100)

Hostarex DK-16 was introduced by Hoechst, Germany. This paper concerns the extraction of zinc from aqueous ammoniacal solutions using Hostarex DK-16 as the extractant. The effect of the pH of the aqueous solution, and ...
STUDIES ON PLASMA DISSOCIATION OF INDIAN ZIRCON IN A SPECIALLY DEVELOPED PLASMA REACTOR

Syamaprasad, U.; Bhattacharjee, S.; Galgali, R.K.; Mohapatra, B.K.; Mohanty, B.C. (Journal Of Materials Science, 27(7), 1992: 1762-1766)

Studies on the preparative and microstructural aspects of plasma-dissociated Indian zircon prepared in a specially designed plasma reactor (20 kW) are reported. The vital parameters involved in the process have been optimized ...
PLATING AND METAL-FINISHING INDUSTRIES WASTE-WATER TREATMENT - AN ECONOMIC PROPOSITION

Rao, K.V.K.; Murty, J.S. (Research And Industry, 37(2), 1992: 92-94)

Metal finishing and plating industries generate toxic effluents containing costly chemicals like nickel, zinc, copper etc. Using ion exchange technique inplant recovery of such chemicals not only solves the pollution problem ...
AN IMPROVED PROCEDURE FOR THE PREPARATION OF 2,4-DIHYDROXY QUINOLINE

Sarangi, C.M.; Rao, Y.R. (Research And Industry, 37(2), 1992: 113-114)

An improved procedure for the preparation of 2,4-dihydroxy quinoline has been standardised. The process consists of (i) condensation of methyl anthranilate in presence of a base catalyst with acetoacetic ester and (ii) ...
PERTRACTION OF COPPER(II) IN THE PRESENCE OF COBALT(II), NICKEL(II), MANGANESE(II) AND IRON(II) USING SUPPORTED LIQUID MEMBRANE

Sarangi, K.; Sarma, P.V.R.B. (Indian Journal Of Chemistry Section A-Inorganic Bio-Inorganic Physical Theoretical & Analytical Chemistry, 31(6), 1992: 379-382)

Pertraction of Cu(II) in the presence of several bivalent cations such as Co(II), Ni(II), Mn(II) and Fe(II) using D2EHPA(di-2-ethyl hexyl phosphoric acid)-kerosene supported liquid membrane is reported. The standard ...
SEPARATION OF CO(II)-ZN(II), CO(II)-MN(II) AND ZN(II)-MN(II) SYSTEMS FROM THEIR BINARY-SOLUTIONS THROUGH SUPPORTED LIQUID MEMBRANE CONTAINING ORGANOPHOSPHORUS ACID AS EXTRACTANT

Mohapatra, R.; Kanungo, S.B.; Sarma, P.V.R.B. (Indian Journal Of Chemistry Section A-Inorganic Bio-Inorganic Physical Theoretical & Analytical Chemistry, 31(6), 1992: 389-390)

The separation of Co(II)-Zn(II), Co(II)-Mn(II) and Zn(II)-Mn(II) systems has been carried out from their aqueous sulphate solutions through supported liquid membrane (SLM) containing organophosphorus acid in kerosene as ...

Now showing items 3481-3490 of 3828

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