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

  • Alkaline roasting as a route for extraction of potassium from feldspar 
    Nayak, R.; Rao, J.R.; Suryanarayana, A.; Nayak, B.B. (Journal Of Scientific & Industrial Research, 56(3), 1997: 173-175)
    The extraction of potassium from feldspar (orthoclase) using the roasting route is studied. The process involves roasting of feldspar with different fluxes individually or in combination followed by leaching of the roasted ...
  • Uptake of lead by iron oxyhydroxides 
    Nayak, R.; Rao, J.R.; Prasad, T.P. (Journal Of Scientific & Industrial Research, 56(12), 1997: 745-748)
    The paper presents investigations on the adsorption of lead on hydrated iron oxides prepared at different temperatures from solutions of iron(II) sulphate or chloride using alkalis such as sodium hydroxide, sodium carbonate ...
  • Reactions of sulphur(IV) with (tetraethylenepentamine)iron(III) 
    Dash, A.C.; Patnaik, A.K.; Das, N. (Indian Journal Of Chemistry Section A-Inorganic Bio-Inorganic Physical Theoretical & Analytical Chemistry, 36(4), 1997: 268-275)
    The reactions of S(IV) with Fe(III) in the presence of tetraethylenepentamine(T) have been investigated at pH = + 3.6-4.2 Fe(III) is bound by the amine in a tridentate fashion (Fe(TH2)(5+)) with the two terminal primary ...
  • Selection and evaluation of research and development projects 
    Das, R.K.; Sahoo, K.C.; Ray, H.S.; Sahoo, P.K. (Journal Of Scientific & Industrial Research, 56(4), 1997: 202-206)
    The project selection and evaluation methods in a CSIR laboratory has been reviewed. This applies only to in-house projects, externally funded ones are monitored by the sponsoring agencies. However, there are certain lapses ...
  • Electrodeposition behaviour of zinc-iron group metal alloys from a methanol bath 
    Tsuru, T.; Kobayashi, S.; Akiyama, T.; Fukushima, H.; Gogia, S.K.; Kammel, R. (Journal Of Applied Electrochemistry, 27(2), 1997: 209-214)
    Electrodeposition of zinc-iron-group metal alloys is carried out in a methanol bath. The effects of different parameters. such as bath composition and current density on current efficiency and alloy composition are ...
  • Zinc electrowinning from acidic sulfate solutions .1. Effects of sodium lauryl sulfate 
    Tripathy, B.C.; Das, S.C.; Hefter, G.T.; Singh, P. (Journal Of Applied Electrochemistry, 27(6), 1997: 673-678)
    The effects of sodium lauryl sulphate(SLS) in the presence and absence of antimony(III) on the current efficiency, power consumption and polarization behaviour of zinc were determined. The surface morphologies and deposit ...
  • The effects of 4-ethylpyridine and 2-cyanopyridine on zinc electrowinning from acidic sulfate solutions 
    Das, S.C.; Singh, P.; Hefter, G.T. (Journal Of Applied Electrochemistry, 27(6), 1997: 738-744)
    The effects of 4-ethylpyridine and 2-cyanopyridine on the electrowinning of zinc in the presence and absence of antimony have been studied, The results are compared with those of a common industrial additive, gum arabic. ...
  • Dielectric constant measurement of lignin by chemical oscillometry 
    Sahoo, N.; Rohella, R.S.; Chakravortty, V. (Indian Journal Of Pure & Applied Physics, 35(8), 1997: 518-522)
    The dielectric constant of isolated and purified lignin, obtained from black liquor, has been evaluated using a high frequency chemical oscillometer. The value of dielectric constant obtained above has been doubly verified ...
  • Effect of zinc on the electrocrystallization of cobalt 
    Pradhan, N.; Subbaiah, T.; Das, S.C.; Dash, U.N. (Journal Of Applied Electrochemistry, 27(6), 1997: 713-719)
    The effects of zinc on the current efficiency? power consumption, deposit quality and contamination of cathode deposit during electrocrystallization of cobalt were studied. The presence of zinc affected current efficiency ...
  • Characterization of urethanase from Micrococcus species associated with the marine sponge (Spirastrella species) 
    Mohapatra, B.R.; Bapuji, M. (Letters In Applied Microbiology, 25(6), 1997: 393-396)
    Eighty per cent of the urethanase activity of Micrococczu sp. isolated from the marine sponge Spirastrella sp. was cell associated. The urethanase had optimal activity at pH 5.0 and 45 degrees C. The activation and ...

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