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

Now showing items 2781-2790 of 3793

Nucleation during electrocrystallization of cobalt on glassy carbon (GC)

Mishra, K.G.; Singh, P.; Muir, D. (Journal Of Applied Electrochemistry, 32(12), 2002: 1391-1396)

A glassy carbon (GC) static disc electrode substrate was employed for both chronoamperometry and to study the morphological growth behaviour of cobalt in sulfate solutions containing 0.10 M and 0.50 M Co2+, at pH 2.5, and ...
Effect of thermal pretreatment on grindability and upgradation of bauxite for refractory applications

Rao, R.B.; Veeresh, M.B.; Banerjee, G.N. (Light Metals 2002, 2002: 205-208)

Iron is a detrimental element in bauxite used for refractory applications. A process has been developed in the laboratory on removal of iron and improvement in alumina recovery of bauxite by reduction/calcination roasting ...
Effect of thermal plasma heating on the dielectric properties of Al-Zr composites

Sahu, D.R.; Roul, B.K.; Singh, S.K.; Chaudhury, R.N.P. (Proceedings Of The Institution Of Mechanical Engineers Part L-Journal Of Materials-Design And Applications, 216(L2), 2002: 127-132)

A low-cost extended arc thermal plasma heating (EATPH) source has been used for the sintering of Al-Zr high-temperature ceramic oxides, and their dielectric properties have been studied. Pellets of Al-Zr composites were ...
Preparation and characterisation of Zr, Ti and Zr-Ti mixed oxide pillared montmorillonite and their catalytic activity towards nitration of chlorobenzene

Das, D.; Mishra, H.K.; Parida, K.M.; Dalai, A.K. (Indian Journal Of Chemistry Section A-Inorganic Bio-Inorganic Physical Theoretical & Analytical Chemistry, 41(11), 2002: 2238-2243)

Zr, Ti and Zr-Ti mixed oxide pillared montmorillonite (PILCs) have been prepared by standard method and their specific surface area, total acidity, and weight loss have been calculated. The mixed oxide pillared clays retain ...
Kinetics and mechanism of the reaction of hydroxopentaaquarhodium(III) ion with L-aspartic acid in aqueous media

Mohanty, S.; Anand, S.; Mohanty, P. (Indian Journal Of Chemistry Section A-Inorganic Bio-Inorganic Physical Theoretical & Analytical Chemistry, 41(6), 2002: 1191-1194)

The kinetics of the reaction Of L-aspartic acid (H3L+) with hydroxopentaaquarhodium (III) has been studied over the range 2.58less than or equal to10(3)[H3L+] less than or equal to12.90, 3.49 less than or equal topHless ...
Interesting product formation during O-alkylation and subsequent rearrangement of two building blocks of dibromotyrosine based natural products

Mallavadhani, U.V.; Mahapatra, A.; Narasimhan, K.; Sahoo, L.D. (Indian Journal Of Chemistry Section B-Organic Chemistry Including Medicinal Chemistry, 41(7), 2002: 1460-1466)

The O-alkylation (allylation/propargylation) of 3,5-dibromo-4-hydroxybenzaidehyde 1 and the corresponding acetophenone 2 results in the formation of aryl-aryl coupled product by loss of formyl groups, aryl-aryl ether and ...
Application of statistical design in the leaching study of low-grade manganese ore using aqueous sulfur dioxide

Naik, P.K.; Sukla, L.B.; Das, S.C. (Separation Science And Technology, 37(6), 2002: 1375-1389)

Sulfur dioxide leaching studies on low-grade manganese ore were carried out at room temperature and atmospheric pressure. The experiments carried out using -150 mum particles aimed at determining maximum extraction of ...
Extraction of cadmium(II) by supported liquid membrane using TOPS-99 as mobile carrier

Tripathy, S.S.; Sarangi, K.; Das, R.P. (Separation Science And Technology, 37(12), 2002: 2897-2911)

The permeation rate of Cd(II) from a dilute aqueous sulfate media using supported liquid membrane technique has been studied. The microporous polypropylene film celgard 2500 was used as solid support for the liquid membrane ...
SnCl2-SiO2: A selective reagent for efficient regeneration of carbonyls from nitrogeneous derivatives

Das, N.B.; Nanda, B.; Nayak, A. (Synthetic Communications, 32(23), 2002: 3647-3651)

Semicarbazones, Phenyl hydrazones, 2,4-DNP and Oxime derivatives are converted into corresponding carbonyl compounds, mostly in quantitative yield by stannous chloride-silica gel. This has general application to various ...
Ultrasonic power measurements in the milliwatt region by the radiation force float method

Swamy, K.M.; Keil, F.J. (Ultrasonics Sonochemistry, 9(6), 2002: 305-310)

The radiation force float technique is extended in the present investigation, for the determination of the total radiated low ultrasonic power in the milliwatt region. It is elucidated, experimentally, using floats having ...

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