Recovery of Copper from a High Content of Slime and Refractory Copper Oxide Ore by Flotation

The study aims to recover copper minerals from a high content of slime and refractory copper oxide ore by flotation process. Based on the research on the properties of the material, the grinding fineness and reagent system are investigated and a technological flow sheet consisting of one roughing flotation, two concentrate flotation, three scavenging flotation and one concentrate-scavenging flotation is adopted. The optimum parameters of flotation experiment are determined as grinding fineness of 90%, dosage of CHO at 200 g/t, dosage of Na2S at 800 g/t and dosage of isoamyl xanthogenate at 1200 g/t. Under such a condition, a copper recovery of 75.03% with a concentrate grade of 18.01% is obtained，which provides a new way for separating the refractory copper oxide ore attached high content of slime.

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Research on Flotation Tests of Sulfide Copper Ore from Yunan

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.634-638.3466 ◽

2013 ◽

Vol 634-638 ◽

pp. 3466-3471 ◽

Cited By ~ 1

Author(s):

Yi Jie Wang ◽

Shu Ming Wen ◽

Jian Liu ◽

Qi Cheng Feng ◽

Meng Yang Lv

Keyword(s):

Mineral Processing ◽

Copper Recovery ◽

Closed Circuit ◽

Iron Deposit ◽

Flow Sheet ◽

Optimum Conditions ◽

Butyl Xanthate ◽

Copper Ore ◽

One Stage ◽

Concentrate Grade

The mineral processing flow sheet and reagent system of flotation copper minerals from a large copper-iron deposit in Yunnan were fully investigated. The results indicate that the optimum conditions for flotation of copper minerals from the material were identified as grinding fineness of 85%, dosage of CaO at 2000g/t , dosage of Na2S at 200 g/t, dosage of butyl xanthate 40g/t. Under such a condition, a copper recovery of 88.17% with a concentrate grade of 26.86% was achieved from the material using a closed circuit flow sheet of "one-stage roughing flotation, one-stage cleaning flotation and one-stage scavenging flotation.

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Flotation Responce of the Refractory Yangla Copper Oxide Ores with Hydroxamate Collectors

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.803.131 ◽

2013 ◽

Vol 803 ◽

pp. 131-136 ◽

Cited By ~ 1

Author(s):

Fei Xiong ◽

Yan Jun Li ◽

Zhong Hui Zhang ◽

Yao Zhong Lan

Keyword(s):

Copper Oxide ◽

Yunnan Province ◽

Copper Recovery ◽

Refractory Oxide ◽

Bench Scale ◽

Oxide Minerals ◽

Concentrate Grade ◽

Copper Ores ◽

Chelating Reagent

To establish the flotation response and suitability of the collectors, series of bench-scale flotation tests are conducted for the refractory oxide copper ores obtained from Yangla Mine in Yunnan province. A simple xanthate (PAX) is used as the sulphide collector and a chelating reagent of hydroxamate AM28 as the oxide collector. It is found and confirmed by mineralogical examination that AM28 successfully recovered all the discrete copper oxide minerals from the Yangla ore. The flotation tests show that the overall copper recovery is affected due to the minerals copper associated with goethite which is not amenable to flotation. The average copper recovery from the rougher tests is 38.4% with a concentrate grade of 3.19%. The additional cleaning flotation can increase the Cu grade in concentrate further.

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Flotation of Low-Grade DongChuan Copper Oxide Ores with Xanthate and Hydroxamate Collectors

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.803.137 ◽

2013 ◽

Vol 803 ◽

pp. 137-141 ◽

Cited By ~ 1

Author(s):

Fei Xiong ◽

Yan Jun Li ◽

Zhong Hui Zhang ◽

Yao Zhong Lan

Keyword(s):

Copper Oxide ◽

Laboratory Scale ◽

Copper Recovery ◽

Low Grade ◽

One Stage ◽

Concentrate Grade

A hydroxamate collector AM28 is used in conjunction with Potassium Amyl Xanthate (PAX) to allow the flotation of the low-grade copper oxide ores from DongChuan Mine. A series of batch laboratory scale flotation tests are conducted for oxide copper minerals to establish the flotation response and the suitability of the collectors. From the rougher flotation tests performed, the highest copper recovery obtained is 78.9% at a concentrate grade of 2.5% using AM28 dosage of 740g/t and PAX dosage of 20g/t. With one stage of cleaning, the obtained copper grade increases to 9.6% with the copper recovery at 64.9%.

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Flotation of a Refractory Copper Oxide Ore Using Ammonium Bicarbonate as Activator

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.581-582.969 ◽

2012 ◽

Vol 581-582 ◽

pp. 969-974

Author(s):

Ya Wen ◽

Jian Jun Fang ◽

Ying Bo Mao ◽

Shan Wang ◽

Jian Liu ◽

...

Keyword(s):

Copper Oxide ◽

Ammonium Bicarbonate ◽

Copper Recovery ◽

Remarkable Effect ◽

Oxide Mineral ◽

Flotation Performance ◽

Concentrate Grade

Flotation of Jinping refractory copper oxide ore activated by a combined reagent of amine and ammonium has been fully studied in present study. The results show that the combined reagent (i.e., ethylenediamine phosphate and ammonium bicarbonate) has a remarkable effect on flotation performance, which can not only effectively activate the refractory copper oxide mineral, but also depress the slime of bauxite and some other impurities, such as cadmium, magnesium and silicon, etc. At last, a copper recovery of 76% with a concentrate grade of 21.65% was achieved from the ore.

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Investigation on Copper Flotation from a Complex Copper Ore, Yunnan Province

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1094.389 ◽

2015 ◽

Vol 1094 ◽

pp. 389-392 ◽

Cited By ~ 1

Author(s):

Chuan Fa Cui ◽

Yong Jun Xian ◽

Shu Ming Wen ◽

Yi Jie Wang

Keyword(s):

Yunnan Province ◽

Copper Recovery ◽

Sulfide Deposit ◽

Flow Sheet ◽

Optimum Conditions ◽

Butyl Xanthate ◽

Two Stage ◽

Copper Ore ◽

Concentrate Grade ◽

Complex Copper

The mineral processing flow sheet and reagent system of flotation copper minerals from alarge copper sulfide deposit in Yunnan were fully investigated. The results indicated that the optimum conditions for flotation of copper minerals from the material were identified as follows: grinding fineness of 80%(-0.074mm), dosage of CaO 800g/t, butyl xanthate 100g/t.Under such condition, a copper recovery of 90.57% with a concentrate grade of 19.52% was achieved from the material using a closed circuit flow sheet of one-stage roughing flotation, two-stage cleaning flotation and two-stage scavenging flotation.

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Comprehensive Recovery of Valuable Metals from Copper Polymetallic Sulphide Ore

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.524-527.957 ◽

2012 ◽

Vol 524-527 ◽

pp. 957-964

Author(s):

Cheng Xiu Li ◽

Shu Ming Wen ◽

Jun Hui Zhang ◽

Chang Ling Wang ◽

Jian Liu ◽

...

Keyword(s):

Magnetic Separation ◽

Sichuan Province ◽

Copper Recovery ◽

Closed Circuit ◽

Flow Sheet ◽

Flotation Reagents ◽

Sulphide Ore ◽

Valuable Metals ◽

Concentrate Grade ◽

Comprehensive Recovery

The study aims to comprehensive recovery of Cu, Mo, Co and Fe from copper polymetallic sulphide ore in Sichuan province, China. In the light of the minerals characteristics, a united flow sheet, i.e., flotation-magnetic separation with new powerful flotation reagents were used to effectively recovery copper together with the associated valuable metals (Mo, Co and Fe) from the ore. The result of the closed circuit experiment shows that a copper recovery of 93.38% with a concentrate grade of 21.25%, Mo recovery of 45.72% with a concentrate grade of 45.78%, Co recovery of 46.42% with a concentrate grade of 0.46% and Fe recovery of 38.26% with a concentrate grade of 63.73% were achieved from the ore.

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Recovery of Zinc and Silver from Zinc Acid-Leaching Residues with Reduction of Their Environmental Impact Using a Novel Water Leaching-Flotation Process

Minerals ◽

10.3390/min11060586 ◽

2021 ◽

Vol 11 (6) ◽

pp. 586

Author(s):

Yunpeng Du ◽

Xiong Tong ◽

Xian Xie ◽

Wenjie Zhang ◽

Hanxu Yang ◽

...

Keyword(s):

Hazardous Waste ◽

Acid Leaching ◽

Copper Recovery ◽

Water Leaching ◽

Flotation Process ◽

Metal Levels ◽

Valuable Metals ◽

Leaching Experiments ◽

Zinc Hydrometallurgy ◽

Poor Stability

Zinc-leaching residue (ZLR) is a strongly acidic hazardous waste; it has poor stability, high heavy metal levels, and releases toxic elements into the environment. ZLR has potential as a valuable resource, because it contains elevated levels of zinc and silver. In this paper, the recovery of zinc (Zn) and silver (Ag) from ZLR wastes from zinc hydrometallurgy workshops using water leaching followed by flotation was studied. During water leaching experiments, the zinc and copper recovery rates were 38% and 61%, respectively. Thereafter, various flotation testing parameters were optimized and included grinding time, reagent dosages, pulp density, flotation time, and type of adjuster. Experimental results demonstrated this flotation method successfully recycled Ag and Zn. A froth product containing more than 9256.41 g/t Ag and 12.26% Zn was produced from the ZLR with approximately 80.32% Ag and 42.88% Zn recoveries. The toxicity characteristic leaching procedure (TCLP) results indicated the water-leaching flotation process not only recycled valuable metals such as zinc and silver in zinc-containing hazardous wastes but lowered the hazardous waste levels to those of general wastes and recycled wastes in an efficient, economical, and environmentally friendly way.

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