ore concentration
1.Tongling area, one of the 7 ore concentration areas in the Middle_Lower Yangtze metallogenic belt of eastern China, has tectonically undergone a geological history from Late Paleozoic continental rifting through Middle Triassic continent_continent collision to Jurassic_Cretaceous intra_continental tectono_magmatic activation.
2.2. Based on the above-studied results and related theories of DW, the specific construction task of the Yuxi Mining Corporation DW (YXDW) is defined after the business requirement analysis is completed. Six subject domains of YXDW are defined as well, that is, mineral resource management, ore management, concentration management, finance management, safety management and equipment & material management, which cover main aspects of production and management in Yuxi Mining Corporation.
3.Preparation of Borax by Powerful Decompositing Method from Boron Ore at High Concentration CO 2 and Soda
4.The ore-controlling factors for concentration areas of large and superlarge noble metallic and nonferrous metallic deposits show generality.
5.The geologic-geochemical model is set up first for exploration of gold deposits in the Sino-Korean paraplatform in this paper, i. e. Archean metamorphic rock series(source bed of gold)-Mesozoic acid magmatic activity (mobilization, migration, enrichment)-ore-bearing fracture zone (concentration, precipitation, ore forming).
6.The hemi-dihydrous phosphoric acid process (Norsk-Hydro Process) is characterized by low ore consumption, high acid concentration,low power consumption,but the operation control is quite complicated,and requirements for quality of phosphate ore are high,moreover,the corrosion of the hemihydrous phosphoric acid system is high.
7.A test has been made for extrating Sc from magnanese ore by employing a chemical concentration process which consists of steps as sulphuric acid leach, extraction of the leach liquor, extraction of Sc from the organic phase, recovery of Co and Ni from residual extracted liquor and preparation of manganese carbonate from the pruified liquor.
8.It is determined for Ⅰ orefield (Shipenggou orefield), Ⅱ orefield (Jiapigou orefield) and Ⅲ orefield (Jinchengdong orefield), in T, P, pH, Eh, fs_2, fo_2, fco_2 and property of ore-forming liquid, types of component, the concentration of major ore-forming ions, i. e., Pb~(2+), Zn~(2+), Fc~(2+), and [AuS_3]~(3-).
9.The determination of gold in ore by extraction?photometric method of I?2?CCl?4 after concentration by activated carbon
10.Gold extraction from ground whole-of-ore by agitated leach ranged from 97% up to 99% depending on grind size and cyanide concentration.
