scholarly journals Effect of organic nutrients on bioleaching of low-grade copper concentrate at different temperatures

2021 ◽  
Vol 677 (4) ◽  
pp. 042076
Author(s):  
Yu A Elkina ◽  
V S Melamud ◽  
A G Bulaev
Keyword(s):  
Low Grade ◽  
Copper Concentrate ◽  
Different Temperatures ◽  
Organic Nutrients

Flotation to Recover Copper Minerals from a Low-Grade Copper-Bearing Iron Ore

2012 ◽  
Vol 549 ◽  
pp. 998-1001
Author(s):  
Si Qing Liu ◽  
Peng Li ◽  
Shu Ming Wen ◽  
Dian Wen Liu
Keyword(s):  
Magnetic Separation ◽  
Phase Analysis ◽  
Iron Ore ◽  
Processing Technology ◽  
Raw Material ◽  
Low Grade ◽  
Copper Concentrate

Large amount of sourrounding rocks in Jianshui China has been discarded for many years, and the “rock” is characterized by Cu-Fe polymetallic constituents and of low grade. According to the results of chemical and phase analysis as well as the mineralogy, a joint pocess of flotation and magnetic separation was proposed and used to process the ore. Flotation results show that the combined processing technology is efficient in utilizing the low grade rocks. A copper concentrate assaying 20.68% Cu at the recovery of 80.11% can be obtained, when the raw material assays 0.79% Cu.

Efficiently Utilizing a Low Grade and Complex Copper Ore by Flotation

2013 ◽  
Vol 734-737 ◽  
pp. 929-934
Author(s):  
Qi Nie ◽  
Xiao Si Zhou ◽  
Fen Lan Peng ◽  
Xu Shen ◽  
Zhi Zhang Li
Keyword(s):  
Yunnan Province ◽  
Copper Recovery ◽  
Test Scheme ◽  
Low Grade ◽  
High Quality ◽  
Copper Ore ◽  
Copper Concentrate ◽  
Main Factors ◽  
Complex Copper

Based on the analysis of the properties of the copper ore from Jinggu area in Yunnan province, a suitable technical route was presented for processing of eligible copper concentrate and the main factors i.e. grinding fineness, Na2S dosage and collector dosage, affecting the quality of roughing concentration was investigated. On this basis, a close-circuit flotation test scheme was preceded, which obtained a high quality copper concentrate with Cu grade of 16.08%, copper recovery of 58.52%. The recovery of copper concentrate is much lower than the Cu recovery of roughing concentrate from the condition experiments. This may be contributed to the fact that fine slime carried by middling worsens the separation of copper minerals and gangues. The Mo was enriched in concentrate, which is significantly considered to recovery in further work.

Linking leach chemistry and microbiology of low-grade copper ore bioleaching at different temperatures

2018 ◽  
Vol 25 (3) ◽  
pp. 271-279 ◽  
Author(s):  
Yan Jia ◽  
He-yun Sun ◽  
Qiao-yi Tan ◽  
Hong-shan Gao ◽  
Xing-liang Feng ◽  
...  
Keyword(s):  
Low Grade ◽  
Copper Ore ◽  
Different Temperatures

Novel Method for Comprehensive Processing of Low-Grade Copper Concentrate

2018 ◽  
Vol 284 ◽  
pp. 856-862
Author(s):  
Andrey A. Shoppert ◽  
L.M. Karimova ◽  
D.V. Zakharyan
Keyword(s):  
Acid Leaching ◽  
Low Grade ◽  
X Ray Diffraction ◽  
Concentrate Mass ◽  
Copper Concentrate ◽  
Alkali Fusion ◽  
Novel Method ◽  
Copper Aluminum ◽  
Promising Source ◽  
Comprehensive Processing

Low grade copper concentrate, composed mainly of plagioclase, quartz, pyrite, chlorite, chalcopyrite, glauconite, is a promising source for the future recovery of copper and other valuable components which processing by existing methods is not economical. An alkali fusion-leaching method followed by acid leaching for extraction of copper, aluminum, silica, iron and silver from such low-grade copper concentrate was explored in this research. The samples were characterized by using wet chemical analysis and X-ray diffraction. An alkali-fusing-leaching method for processing of low-grade copper concentrate allows to extract in a solution of 62% Si, 70% Fe, 95% Ag, 97% Al and 98% of Cu with the following optimal parameters: NaOH/concentrate mass ratio = 175%, fusion temperature = 375 °C, the fusion time = 90 min. The proposed method is suitable for the comprehensive processing of the low-grade copper concentrate.

Autoclave conditioning of a low-grade sulphide copper concentrate

2016 ◽  
pp. 43-48 ◽  
Author(s):  
I. V. Ukraintsev ◽  
◽  
B. S. Ivanov ◽  
G. V. Petrov ◽  
A. Ya. Boduen ◽  
...  
Keyword(s):  
Low Grade ◽  
Copper Concentrate

Investigating of a Low-Grade Copper Concentrate Desilication by Alkali Pressure Leaching

2019 ◽  
Vol 946 ◽  
pp. 608-614 ◽  
Author(s):  
Andrey A. Shoppert ◽  
Irina V. Loginova ◽  
V.N. Pismak
Keyword(s):  
Raw Materials ◽  
Acid Leaching ◽  
Pressure Leaching ◽  
Low Grade ◽  
X Ray Diffraction ◽  
Copper Concentrate ◽  
Valuable Metals ◽  
Alkali Leaching ◽  
Wet Chemical ◽  
Promising Source

Low grade copper concentrate, composed mainly of plagioclase, quartz, pyrite, chlorite, chalcopyrite, glauconite, is a promising source for the future recovery of copper and other valuable components, which processing by existing methods are not economical. An alkali pressure leaching method, followed by acid leaching for extraction of aluminum and silica from such low-grade copper concentrate with the aim to enrich other valuable metals content, was explored in this research. The samples were characterized by using wet chemical analysis and X-ray diffraction. An alkali pressure leaching, followed by dilute acid leaching for enrichment of low-grade copper concentrate, allows to extract in a solution of 90,4% Si, 83.82% Al and 7.73% of Cu with the following optimal parameters: NaOH/concentrate-1 mass ratio = 65%, alkali leaching temperature = 240 °C, the alkali leaching time = 90 min. The content of copper in the final concentrate was 19.17%. Consequently, the technology of processing of low-grade copper raw materials is proposed, that allows to increase the comprehensiveness of raw materials usage.

Recovery Cu from a Copper Oxide Ore by Flotation and Leaching

2014 ◽  
Vol 522-524 ◽  
pp. 1484-1487
Author(s):  
Chao Lv ◽  
Shu Ming Wen ◽  
Shao Jun Bai ◽  
Yi Jie Wang ◽  
Ci Yun Chen
Keyword(s):  
Copper Oxide ◽  
Acid Leaching ◽  
Low Grade ◽  
Liquid Ratio ◽  
Total Recovery ◽  
Flotation Tailings ◽  
Copper Concentrate ◽  
High Oxidation ◽  
Oxidation Ratio ◽  
Leaching Efficiency

The copper oxide ore is high oxidation ratio and the high combination ratio with a low grade of Cu 0.71%. Copper concentrate of Cu 15.02% with a recovery of 38.55% was obtained by flotation. The optimum acid leaching conditions were investigated. Effects of lixiviant concentration, solid-to-liquid ratio, leaching time were investigated. The acid leaching efficiency was 78.75% relative to flotation tailings. By the combination of flotation and acid leaching flotation tailings, most of the Cu in the minerals can be enriched, the total recovery of copper reached 86.85%.

Study on the Bulk Flotation of a Low Grade Copper-Molybdenum Ore of Yunnan Province

2013 ◽  
Vol 734-737 ◽  
pp. 1104-1109
Author(s):  
Yong Jun Xian ◽  
Qi Nie ◽  
Ping Lu
Keyword(s):  
Optimum Condition ◽  
Yunnan Province ◽  
Low Grade ◽  
High Recovery ◽  
Copper Concentrate ◽  
Main Factors

Based on the analysis of the properties of the copper-molybdenum ore from Yunnan province, a suitable technical route was presented for processing of eligible molybdenum and copper concentrate with a high recovery. Moreover, the main factors i.e. grinding fineness and collector dosage, affecting the quality of roughing concentration was investigated. The optimum condition of bulk flotatuon were obtained.

Beneficiation of a Low-Grade Refractory Copper Ore in Yunnan

2014 ◽  
Vol 968 ◽  
pp. 173-179
Author(s):  
Feng Xie ◽  
Han Ping Zhang ◽  
Xian Mei Chen ◽  
Jin Fang Lv
Keyword(s):  
Experimental Study ◽  
Separation Process ◽  
Low Grade ◽  
Copper Ore ◽  
Copper Concentrate

Regarding to a Low-grade refractor copper ore，this paper investigates the property of run-of-mine ore，and based on the characteristic of raw ore，mineral process experimental study is implemented. It can realize the copper concentrate grading at 15.84%with a 87.04% recovery through the bulk flotation with Cu-S separation process.

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