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

Now showing items 2791-2800 of 3793

Preparation, physico-chemical characterization and catalytic activity of sulphated ZrO2-TiO2 mixed oxides

Das, D.; Mishra, H.K.; Parida, K.M.; Dalai, A.K. (Journal Of Molecular Catalysis A-Chemical, 189(2), 2002: 271-282)

A series of ZrO2-TiO2 mixed oxides was prepared varying mole fraction of titanium from 0 to 1, and characterized by XRD, FT-IR, TG/DTA, UV-VIS-DRS, surface area, surface acidity, and sulphur content. The UV-VIS-DRS and pH ...
Reduction of phosphorus content of certain high phosphorus manganese ores of India by roasting with sodium chloride followed by leaching in acid medium I: Statistical design of roasting experiments

Kanungo, S.B.; Mishra, S.K. (Transactions Of The Indian Institute Of Metals, 55(3), 2002: 81-89)

The high phosphorus manganese ores of eastern coastal region of India require drastic chemical treatment to reduce their phosphorus contents because. of its very complex, nature of occurrence in, these ores. The method ...
Reduction of phosphorus content of certain high phosphorus manganese ores of India by roasting with sodium chloride followed by leaching in acid medium II: Statistical design of leaching experiments

Kanungo, S.B.; Mishra, S.K. (Transactions Of The Indian Institute Of Metals, 55(3), 2002: 91-98)

A novel method has been developed whereby certain high phosphorus, manganese ores of eastern coastal region of India can be dephosphorized by roasting the ores with small quantity of sodium chloride followed by leaching ...
Studies on the effects of CO2 and CO on n-butane isomerisation activity over sulfated zirconia

Mishra, H.K.; Dalai, A.K.; Parida, K.M. (Journal Of Molecular Catalysis A-Chemical, 185(1-2), 2002: 237-248)

Sulfated zirconia with 10 wt.% nominal sulfate loading was synthesised, characterised and tested for n-butane isomerisation activity varying butane diluents such as CO2, CO and nitrogen, and reaction temperatures. Results ...
Melt separation of titania rich slag and pig iron from pre-reduced ilmenite using thermal plasma

Mukherjee, P.S.; Choudhury, S.K.; Misra, V.N.; Das, P.N.M. (Transactions Of The Indian Institute Of Metals, 55(6), 2002: 543-550)

Conventional methods for production of TiO2 generate a huge amount of effluents. The world trend is bending towards a new clean technology for its production. Though thermal plasma technology has been in operation in several ...
Antifungal efficacy of bacteria isolated from marine sedentary organisms

Mohapatra, B.R.; Bapuji, M.; Sree, A. (Folia Microbiologica, 47(1), 2002: 51-55)

The antibiotic-producing ability of 57 bacteria isolated from 8 marine sedentary organisms, 6 sponges (Spirastrella sp., Phyllospongia sp., Ircinia sp., Aaptos sp., Azorica sp., Axinella sp.), 1 soft coral (Lobophytum sp.) ...
Bioleaching of fly ash

Swain, S.; Sahoo, B.N.; Sukia, L.B. (Transactions Of The Indian Institute Of Metals, 55(3), 2002: 99-103)

Removal of, metal values from industrial wastes through bioleaching offers a non-polluting and economic solution to environmental problems. In the present work, the fungal strain Aspergillus niger, isolated from soil near ...
Synthesis of SiC from rice husk in a plasma reactor

Singh, S.K.; Mohanty, B.C.; Basu, S. (Bulletin Of Materials Science, 25(6), 2002: 561-563)

A new route for production of SiC from rice husk is reported by employing thermal plasma technique. The formation of beta-SiC is observed in a short time of 5 min. The samples are characterized by XRD and SEM.
Aqueous reduction of crystalline goethite under ammoniacal conditions

Mohapatra, M.; Anand, S.; Das, R.P.; Upadhyay, C.; Verma, H.C. (Hydrometallurgy, 65(2-3), 2002: 227-235)

Pure crystalline goethite was laboratory-prepared and its reduction under various experimental conditions was studied. Both goethite and the reduced products obtained by the action of ammonium sulphite and/or ferrous ...
Oxidative ammonia leaching of sphalerite Part I: Noncatalytic kinetics

Ghosh, M.K.; Das, R.P.; Biswas, A.K. (International Journal Of Mineral Processing, 66(1-4), 2002: 241-254)

The results of oxidative leaching kinetics of sphalerite concentrate in ammonia solution are presented. The effect of oxygen partial pressure (0.5-10 atm), ammonia concentration (1.54-5.35 M), pH (10.4-11.2), leaching ...

Now showing items 2791-2800 of 3793

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