The reduction roasting of chromite overburden with CO/CO2/N-2 gas mixture in the temperature range 700-750 degrees C has been shown to result in the formation of metallic nickel and different lower valence states of iron, ...

Allylation of a variety of carbonyl compounds with allylic halides could be induced by Cu(II)-Mg to give corresponding homoallylic alcohols with high chemoselectivity. Cu(II)Mg/THF-H2O was found to be an efficient reduction ...

The kinetics of reversible complexation of Ni-II and Co-II with iminodiacetato(pentaammine)cobalt(III), [(NH3)(5)Co(idaH(2))](3+) and Ni-II with iminodiacetato(tetraammine)-cobalt(III), [(NH3)(4)Co(idaH)](2+), have been ...

The syntheses of 1,1'-dimethyl 2,2'-biimidazole (1), 1-methyl 2-(2'-pyridyl) benzimidazole (2) and 1,1'-dimethyl 2,2' bibenzimidazole (3) have been achieved by following a general PTC based methylation reaction of the ...

Magnetite ore from Pokphur region, Nagaland, invariably contains a silicate phase which is identified as chamosite. Chromium and nickel values in the ore are found to be mainly contributed by chamosite. Detailed mineragraphy ...