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

Now showing items 2711-2720 of 3793

Adsorption of Co, Ni, Cu, and Zn on hydrous manganese dioxide from complex electrolyte solutions resembling sea water in major ion content

Kanungo, S.B.; Tripathy, S.S.; Rajeev (Journal Of Colloid And Interface Science, 269(1), 2004: 1-10)

Adsorption of Co, Ni, Cu. and Zn onto a poorly crystalline hydrous manganese dioxide (delta-MnO2) has been studied in complex electrolyte solutions such as (a) 0.5 M NaCl + 0.054 M MgCl2, (b) 0.5 M NaCl + 0.028 M Na2SO4, ...
Preparation of high pure graphite by alkali digestion method

Rao, R.B.; Patnaik, N. (Scandinavian Journal Of Metallurgy, 33(5), 2004: 257-260)

This paper deals with a novel new technique: alkali digestion, followed by grinding and flotation, has been attempted for the first time on the Indian graphite ore. The novelty in this method is that the quartz mineral, ...
Adsorption of Co2+, Ni2+, CU2+, and Zn2+ onto amorphous hydrous manganese dioxide from simple (1-1) electrolyte solutions

Kanungo, S.B.; Tripathy, S.S.; Mishra, S.K.; Sahoo, B.; Rajeev (Journal Of Colloid And Interface Science, 269(1), 2004: 11-21)

The adsorption of Co2+. Ni2+, Cu2+, and Zn2+ onto amorphous hydrous manganese dioxide (delta-MnO2) has been studied using two methods, viz., isotherms at constant pH in the presence of buffer solution and pH variation in ...
A comparative study on textural characterization: cation-exchange and sorption properties of crystalline alpha-zirconium(IV), tin(IV), and titanium(IV) phosphates

Parida, K.M.; Sahu, B.B.; Das, D.P. (Journal Of Colloid And Interface Science, 270(2), 2004: 436-445)

Tetravalent metal phosphates (M = Zr, Ti, and Sn) were prepared and characterized by XRD, surface properties, and TG-DTA. The cation exchange and sorption behavior of these metal phosphates toward transition metal ions ...
Sulfated nanozirconia: an investigation on acid-base properties and n-butane isomerization activity

Mishra, H.K.; Dalai, A.K.; Das, D.D.; Parida, K.M.; Pradhan, N.C. (Journal Of Colloid And Interface Science, 272(2), 2004: 378-383)

Hydrated zirconia was synthesized by an organo-inorganic route employing surfactant and was sulfated using aqueous ammonium persulfate, followed by drying at 110 degreesC. The sample thus obtained was calcined at 600 ...
Use of oxide minerals to abate fluoride from water

Mohapatra, D.; Mishra, D.; Mishra, S.P.; Chaudhury, G.R.; Das, R.P. (Journal Of Colloid And Interface Science, 275(2), 2004: 355-359)

The removal of fluoride from aqueous solutions has been investigated using various oxide ores such as refractory grade bauxite, feed bauxite, manganese ore, and hydrated oxides of manganese ores (WAD). The refractory grade ...
Reaction of cis-diaqua nitrilotriacetatochromate(III) with L-ascorbic acid: A kinetic study

Brahma, G.S.; Mohanty, P.; Nanda, B. (Indian Journal Of Chemistry Section A-Inorganic Bio-Inorganic Physical Theoretical & Analytical Chemistry, 42(11), 2003: 2751-2756)

The kinetics of the reaction of L-ascorbic acid (H(2)A) with cis-[Cr(NTA)(H2O)(2)] has been studied over the range 0.02less than or equal to[H(2)A](T)less than or equal to 0.1 mol dm(-3), 3.16 less than or equal to pH less ...
Production of industrial enzymes (Amylase, carboxymethylcellulase and protease) by bacteria isolated from marine sedentary organisms

Mohapatra, B.R.; Bapuji, M.; Sree, A. (Acta Biotechnologica, 23(1), 2003: 75-84)

The abilities of bacteria isolated from eight marine sedentary organisms, six marine sponges (Spirastrella sp., Phyllospongia sp., Ircinia sp., Aaptos sp., Azorica sp. and Axinella sp.), one soft coral (Lobophytum sp.) and ...
Pterostilbene: A highly reliable quality-control marker for the Ayurvedic antidiabetic plant 'Bijasar'

Mallavadhani, U.V.; Sahu, G. (Chromatographia, 58(5-6), 2003: 307-312)

In the Indian Ayurvedic system of medicine the heart wood of Bijasar (Lat: Pterocarpus marsupium; Fam: Leguminoceae) has been extensively used to treat diabetes mellitus. Detailed chemical and HPTLC analysis has been ...
Preferential extraction of gallium from Bayer liquor using ion exchange chelating resin containing hydroxamic acid functional group

Rao, K.S.; Sarangi, D.; Dash, P.K.; Chaudhury, G.R. (Journal Of Chemical Technology And Biotechnology, 78(5), 2003: 555-561)

Gallium extraction studies were carried out using resin containing an hydroxamic acid functional group. Extraction was dependant on reaction time and alkali concentration. The resin did not extract aluminium. Vanadium ...

Now showing items 2711-2720 of 3793

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