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Mining in New Zealand

nbsp 0183 32 Mining in New Zealand began when the Māori quarried rock such as argillite in times prior to European colonisation Mining by Europeans began in the latter half of the 19th century New Zealand has abundant resources of coal silver iron ore limestone and gold It...

Chinese Journal of Engineering

nbsp 0183 32 Abstract Five kinds of pellets containing high magnesium magnetite forsterite dolomite magnesite and magnesia powder respectively were made to investigate the effect of MgO co...

Kinetic and isotherm studies on adsorption of arsenic using

nbsp 0183 32 The results obtained for elemental composition of raw DMI-65 using XRF are shown in Table 1 The elemental analysis showed that the main constituent of DMI-65 is SiO 2 96 55 by mass The following minor components Al 2 O 3 K 2 O CaO and Fe 2 O 3 are the most prominent and also include trace elements such as Co Cu Ni S Sc Cr Cl and MnO ppm...

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