Kegiatan produksi penambangan blok keuno difokuskan pada material Low Grade Saprolith Ore, Material Ore adalah kelompok bijih nikel kadar rendah yang diperuntukkan untuk ekspor dengan batas tertentu. Adanya tahapan pemindahan LSGO dari front menuju stockyard transito dan final ore dimaksudkan mengetahui berapa besar persentase losses tersebut faktor apa saja menjadi penyebab terjadinya melakuka...

An iron ore mining company, operating in Western Australia, trucks ore from three geographically isolated sources to a crusher, where it is blended before and during crushing. The company prides itself on its key performance indicator: the relatively low inter-shipment grade variability of its products. The company has been considering alternative production process designs for all stages from ...

Most of the world’s nickel is extracted from the mineral pentlandite, (Ni, Fe)9S8, which frequently occurs in ores containing predominantly pyrrhotite and various non-sulRdes, some of which contain magnesium (Table 1). The nickel content in such sulRde ores is generally low (0.2}3%) and varies from place to place in the same deposit. The low nickel content of the present-day nickel sulRde ores ...

this study aimed to explore concentration of a low grade sulfide-oxide lead-zinc sample containing 2.3% pb, 1.91% zn taken from changarzeh mine, south natanz, iran. the effects of different parameters such as type and dosage of collector, milling retention time, dosage of sodium sulfur and its preparation time, application of sodium silicate, ph and solid content were investigated in relation t...

Biomass was used as reducing agent to roast the Baotou low-grade limonite in a high temperature vacuum atmosphere furnace. The effect of calcination temperature, time and ratio of reducing agent on the magnetic properties of calcined ore was studied by VSM. The phase and microstructure changes of limonite before and after calcination were analyzed by XRD and SEM. The results show that in the ro...

The extensively used shaft furnace in the ore concentration industry is an important facility that turns the weak-magnetic low-grade hematite ore into strong-magnetic one. During the operation of the shaft furnace roasting process, the optimal control objective is to control the technique indices, namely the magnetic tube recovery ratio (MTRR) that represents the quality, the efficiency, and th...

In the present work, iron recovery from a low-grade hematite ore (containing less than 40% iron), which is not applicable in common methods of ironmaking, was studied. Non-coking coal was used as reducing agent. Reduction experiments were performed under various coal to hematite ratios and temperatures. Reduction degree was calculated using the gravimetric method. Reduced samples were subjected...