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

Now showing items 2781-2790 of 3828

Band structure studies in solids using X-ray spectroscopy

Acharya, B.S. (Indian Journal Of Physics And Proceedings Of The Indian Association For The Cultivation Of Science-Part A, 77A(2), 2003: 103-107)

The advent of X-ray photoelectron spectrometer and high energy synchroton sources have renewed interest in X-ray spectroscopical investigation of matter, be it solid, liquid or gases. Out of all spectroscopies available ...
Kinetics and mechanism of the reactions of chromium(III) and L-ornithine in aqueous solution

Mohanty, S.; Anand, S.; Brahma, G.S.; Mohanty, P. (Journal Of The Indian Chemical Society, 80(9), 2003: 810-814)

The anation reaction of L-ornithine (H3L2+) with chromium(III) has been studied over the range 3.0 less than or equal to pH less than or equal to 3.5, 40degrees less than or equal to t less than or equal to 55degrees and ...
Characterisation of nickel hydroxide precipitated from solutions containing Ni2+ complexing agents

Subbaiah, T.; Mohapatra, R.; Mallick, S.; Misra, K.G.; Singh, P.; Das, R.P. (Hydrometallurgy, 68(1-3), 2003: 151-157)

Nickel hydroxide prepared by a complexation-precipitation route yields a very fine particle material. The physicochemical properties and electrochemical charge-discharge capacities are compared with electrochemically ...
Physico-chemical characterization and sulphatization roasting of low-grade nickeliferous laterites

Swamy, Y.V.; Kar, B.B.; Mohanty, J.K. (Hydrometallurgy, 69(1-3), 2003: 89-98)

Low-grade nickeliferous laterites from the Sukinda region, Orissa, India, were characterized by microscopic investigations, using X-ray diffraction (XRD), DTA/TG, SEM and IR techniques. The major minerals were goethite, ...
Effect of antimony(III) on the electrocrystallisation of zinc from sulphate solutions containing SLS

Tripathy, B.C.; Das, S.C.; Misra, V.N. (Hydrometallurgy, 69(1-3), 2003: 81-88)

A detailed investigation has been carried out to determine the effect of antimony(III) on the electrocrystallisation of zinc from sulphate solutions containing sodium lauryl sulphate (SLS). The results indicated that ...
Effect of preparation conditions on formation of nanophase Ni-Zn ferrites through hydrothermal technique

Upadhyay, C.; Mishra, D.; Verma, H.C.; Anand, S.; Das, R.P. (Journal Of Magnetism And Magnetic Materials, 260(1-2), 2003: 188-194)

Nanophase Ni1-xZnxFe2O4 (x = 0, 0.5, 1.0) samples were prepared by chemically precipitating hydroxides followed by hydrothermal processing. The products were characterized by X-ray diffraction and Mossbauer spectroscopy. ...
Bio-dissolution of zinc sulfide concentrate in 160 1 4-stage continuous bioreactor

Pani, C.K.; Swain, S.; Kar, R.N.; Chaudhury, G.R.; Sukla, L.B.; Misra, V.N. (Minerals Engineering, 16(10), 2003: 1019-1021)

This paper reports the bioleaching of zinc sulfide concentrates by mesophilic chemolithotrophic bacteria. The leaching studies were carried out in 160 14-stage bioreactor in optimized conditions based on 40 1 batch scale ...
Study on morphology of copper deposited onto aluminium by immersion plating from an oxalate bath containing perchloric acid

Kanungo, M.; Mishra, K.G.; Das, S.C. (Minerals Engineering, 16(12), 2003: 1383-1386)

The structural characteristics of copper deposits resulting from immersion plating of copper are presented. In this study halide is replaced by perchloric acid, which is found to effectively break down the impervious oxide ...
Studies on reaction mechanism of bioleaching of manganese ore

Acharya, C.; Kar, R.N.; Sukla, L.B. (Minerals Engineering, 16(10), 2003: 1027-1030)

A systematic study has been made to establish the reaction mechanism of bioleaching of manganese ore with the manganese reducing fungi, Penicillium citrinum, isolated from the top soil of an active manganese ore mine site. ...
Effect of addition of Cu(II), Ni(II) and Co(II) ions on conversion of crystalline goethite to magnetite in NH3-FeSO4-H2O medium

Mohapatra, M.; Anand, S.; Das, R.P.; Upadhyay, C.; Verma, H.C. (International Journal Of Mineral Processing, 69(1-4), 2003: 75-86)

Conversion of crystalline goethite to magnetite was carried out in the presence of Cu(II), Ni(II) or Co(II) ions in NH3-Fe(II)-H2O medium. The conditions used were: temperature 403 K, ammonia 25 g l(-1), time 2 h, ferrous ...

Now showing items 2781-2790 of 3828

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