000 00751nam a2200157 4500
001 0000002654
008 111025 1990 eng d
040 _aJMGHQ
090 0 0 _a553.4629
_bINS
110 2 _aInstitut Penyelidikan Galian
245 1 0 _aBeneficiation of a low grade manganese ore
_cInstitut Penyelidikan Galian.
260 _c1990
300 _a6 p.
_c30 cm
520 _aBeneficiation tests wre limited to the heavy media process because of the desirability of minimising the production of fines, and because of the smaal amount of manganese composite with gangue minerals. A concentrate a saying 40.4 percent Mn was produced from the coarse ore with a rocovery of 61.7 percent. Ratio of concentration was 3.8.
650 0 _aMineralogy
999 _c22344
_d22344