Modern Pit Process: Flowsheet Studies

2003 ◽  
Author(s):  
D G Karraker
Keyword(s):  
Process Flowsheet

scholarly journals Process Flowsheet Development for Separation of Sm, Co, Cu, and Fe from Magnet Scrap

ACS Omega ◽  
2020 ◽  
Author(s):  
Alok Kumar Nayak ◽  
Binapani Behera ◽  
Kadambini Sarangi ◽  
Malay Kumar Ghosh ◽  
Suddhasatwa Basu
Keyword(s):  
Process Flowsheet ◽  
Flowsheet Development

scholarly journals Characterization and Beneficiation Options for Tungsten Recovery from Yxsjöberg Historical Ore Tailings

Processes ◽  
2019 ◽  
Vol 7 (12) ◽  
pp. 895
Author(s):  
Jane Mulenshi ◽  
Pourya Khavari ◽  
Saeed Chehreh Chelgani ◽  
Jan Rosenkranz
Keyword(s):  
Environmental Impact ◽  
High Intensity ◽  
Extraction Methods ◽  
Environmental Risks ◽  
Magnetic Fraction ◽  
Drill Core ◽  
Valuable Metals ◽  
Process Flowsheet ◽  
Negative Environmental Impact ◽  
Knelson Concentrator

Repositories of historical tungsten mining tailings pose environmental risks, but are also potential resources for valuable metals. They still contain large tonnages of useful minerals and metals, reflecting the inefficient extraction methods and/or low metal prices at the time they were mined. The focus of this study is to evaluate the technical viability of reprocessing the tailings to recover some of the contained valuable minerals and metals, as well as reducing the negative environmental impact associated with the tailings. Geometallurgical studies were conducted on drill core samples taken from the Smaltjärnen tailings repository of the closed Yxsjöberg tungsten mine, Sweden. The collected samples were characterized physically, chemically, and mineralogically. Knelson concentrator dry low- and high-intensity magnetic separation methods were tested as potential beneficiation methods. The tailings are dominated by the −600 to +149 µm particles. The highest concentration of tungsten (W) was 0.22% WO3. Using a Knelson concentrator, scheelite (main W mineral) recovery was enhanced, with 75 wt.% tungsten recovered in the 34 wt.% heavy concentrate. Only 1.0 wt.% sulphur (S) reported to the non-magnetic fraction. Based on the findings, a methodology and a preliminary process flowsheet for reprocessing the tailings is proposed.

Process flowsheet superstructures: Structural multiplicity and redundancy

2005 ◽  
Vol 29 (10) ◽  
pp. 2180-2197 ◽  
Author(s):  
Tivadar Farkas ◽  
Endre Rev ◽  
Zoltan Lelkes
Keyword(s):  
Process Flowsheet

Synroc for Immobilising Excess Weapons Plutonium

1994 ◽  
Vol 353 ◽  
Author(s):  
A. Jostsons ◽  
E. R. Vance ◽  
D. J. Mercer ◽  
V. M. Oversby
Keyword(s):  
Chemical Durability ◽  
National Academy Of Sciences ◽  
Hydrothermal Conditions ◽  
Process Flowsheet ◽  
Disposal Option ◽  
Demonstration Plant ◽  
Deep Boreholes ◽  
Academy Of Sciences ◽  
High Degree ◽  
Very High

AbstractThe immobilisation of excess weapons plutonium into Synroc can meet all of the important criteria discussed by the U.S. National Academy of Sciences (NAS)(1) for disposal, if the disposal option is pursued rather than options that exploit the energy value of plutonium. This paper summarises the relevant background of Pu incorporation into Synroc, the durability of Pu-containing Synroc and outlines a process flowsheet based on the experience with the 10 kg/hr Synroc Demonstration Plant at ANSTO. The extensive solid solubility of Pu in Synroc, coupled with a very high degree of chemical durability under hydrothermal conditions, makes Synroc ideal as a waste matrix for Pu disposal in deep boreholes to minimise diversion and proliferation risks.

Design technique for organizational-process flowsheet in clothing manufacture

2014 ◽  
Vol 75 (6) ◽  
pp. 1130-1136 ◽  
Author(s):  
F. U. Nigmatova ◽  
M. Sh. Shomansurova ◽  
I. Kh. Siddikov ◽  
A. A. Musakhonov
Keyword(s):  
Design Technique ◽  
Organizational Process ◽  
Process Flowsheet ◽  
Clothing Manufacture

scholarly journals Pre-combustion CO2 Removal in IGCC Plant by MDEA Scrubbing: Modifications to the Process Flowsheet for Energy Saving

2017 ◽  
Vol 114 ◽  
pp. 2136-2145 ◽  
Author(s):  
Stefania Moioli ◽  
Laura A. Pellegrini ◽  
Matteo C. Romano ◽  
Antonio Giuffrida
Keyword(s):  
Energy Saving ◽  
Co2 Removal ◽  
Process Flowsheet
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