Radioisotope tracer investigation and modeling of copper concentrate dewatering process

2004 ◽  
Vol 73 (1) ◽  
pp. 37-43 ◽  
Author(s):  
Zdzislaw Stegowski ◽  
Leszek Furman
Keyword(s):  
Copper Concentrate ◽  
Radioisotope Tracer

Flotation Experimental Study of High-Sulfur Cu-Zn Ore in Yunnan

2014 ◽  
Vol 490-491 ◽  
pp. 160-163
Author(s):  
Zhi Guo Zhang ◽  
Quan Jun Liu ◽  
Jin Cheng Ran
Keyword(s):  
Experimental Study ◽  
Mineral Composition ◽  
Recovery Rate ◽  
Closed Circuit ◽  
Copper Concentrate ◽  
Concentrate Grade ◽  
And Control ◽  
Zinc Concentrate

The experimental ore belongs to high-sulfur Cu-Zn poly-metallic ore, the mineral composition of ore is complex, cupriferous pyrite most are disseminated. The Cu grade of raw ore is 0.76%, Zn grade is 1.48% and S about 25.02%. on the basis of best reagent system and control flotation time, the author did closed circuit process. the results of closed circuit process as follows: the copper concentrate grade is 20.35% and recovery rate is 86.081%; the zinc concentrate grade is 54.32% and recovery rate is 84.20%.

Transformation of chalcopyrite in the roasting process of copper concentrate in fluidized bed reactor

JOM ◽  
2011 ◽  
Vol 63 (5) ◽  
pp. 55-59 ◽  
Author(s):  
Mira B. Cocić ◽  
Mihovil M. Logar ◽  
Saša Lj. Cocić ◽  
Snežana S. Dević ◽  
Dragan M. Manasijević
Keyword(s):  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
Copper Concentrate ◽  
Roasting Process

Comparison of Bioleaching High Arsenic-Bearing Copper Sulphide Concentrate Using Thiobacillus Ferrooxidans and Sulfobacillus Thermosulfidooxidans

2012 ◽  
Vol 524-527 ◽  
pp. 1997-2003
Author(s):  
Hai Yun Xie ◽  
Zhuo Yue Lan ◽  
Shu Ming He ◽  
Li Kun Gao ◽  
Xiong Tong
Keyword(s):  
Thiobacillus Ferrooxidans ◽  
Arsenic Sulfide ◽  
High Concentration ◽  
Initial Concentration ◽  
Copper Concentrate ◽  
Leaching Process ◽  
Sulfobacillus Thermosulfidooxidans ◽  
Moderate Thermophile ◽  
Arsenic Copper ◽  
High Arsenic

The usage of high-arsenic sulfide copper concentrate were limited because the arsenic in the concentrate harms the qualities of copper product and pollutes the environment. In this paper an innovative process for high-arsenic copper sulfide concentrate with with bio-oxidation respectively Thiobacillus ferrooxidans and moderate thermophile Sulfobacillus thermosulfidooxidans has been studied out, and the influencing factors have been comparative studied during the leaching process, such as concentration particle size, leaching methods, pulp concentration, leaching time and the initial concentration of Fe3+, etc. Under the suitable leaching conditions, the experiments results show that the concentrate is leached 47.13% of Cu,50.09% of As and 52.46% of Fe by Thiobacillus ferrooxidans and 82.39% of Cu,78.21% of As and 40.38% of Fe by moderate thermophile Sulfobacillus thermosulfidooxidans. The high concentration initial Fe3+ has speeded leaching process up in the presence of moderate thermophile Sulfobacillus thermosulfidooxidans, and when the pulp initial concentration of Fe3+ is in the range of 0.08~0.32mol/L, the leaching rate of Cu is 86.34~97.06%, As 89.22~94.13%. It is concluded that Sulfobacillus thermosulfidooxidans have a better effect on bioleaching high-arsenic sulfide copper concentrate than Thiobacillus ferrooxidans.

Simulation of the removal of arsenic during the roasting of copper concentrate

1999 ◽  
Vol 30 (3) ◽  
pp. 393-401 ◽  
Author(s):  
S. Nakazaw ◽  
A. Yazawa ◽  
F. R. A. Jorgensen
Keyword(s):  
Copper Concentrate ◽  
Removal Of Arsenic

Modelling and process optimisation of antimony removal from a complex copper concentrate

2012 ◽  
Vol 22 (3) ◽  
pp. 675-685 ◽  
Author(s):  
Samuel Ayowole AWE ◽  
Mohammad KHOSHKHOO ◽  
Paul KRUGER ◽  
Åke SANDSTRÖM
Keyword(s):  
Process Optimisation ◽  
Copper Concentrate ◽  
Complex Copper
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