The Comprehensive Utilization of Recovering Gold from Iron Tailings

In this study, the main aim was to recovery the gold from iron tailings, and comprehensive recovery of iron by using combined separating technology. Experimental studies were carried out on the iron tailings in Dahongshan samples, which contain 0.5g/t of gold and 16.8% of iron. Through the experiment, the first is pre-discarding tailings by centrifuge, and then the gold is recovered by cyanidation leaching with using of H2O2 to increase the rate of gold dissolution. The gold’s leaching rate can reach 97.60%. The qualified iron concentrate can be got from leaching slag and gravity tailings by magnetic separation. Iron tailings get a comprehensive utilization, which has a better effect.

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Recovering of Iron from Feebly-Magnetic Iron Tailings Containing High Silicate

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.385-386.30 ◽

2013 ◽

Vol 385-386 ◽

pp. 30-33

Author(s):

Xian Xie ◽

Xiao Wang ◽

Xiong Tong

Keyword(s):

Magnetic Separation ◽

High Frequency ◽

Experimental Studies ◽

Comprehensive Utilization ◽

Iron Concentrate ◽

High Silicate

In this study, the main aims were to recovery iron from iron tailings containing high silicate and reduce the tailing grade by using combined separating technology. Experimental studies were carried out on the iron tailings in Dahongshan samples, which contain 27.78% of iron. Through the experiment, the first is pre-classification by high-frequency vibrating, and then the iron is recovered by strong magnetic separation of one rough, one scavenger and a gravity concentrating with Slon and chute. The iron concentrate which the grade of Fe is 53.08% and the recovery of 68.45% is obtained and the grade of tailings reduce from 27.78% to 13.80%. Iron tailings get a comprehensive utilization, which has a better effect.

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Experimental Research on Low Grade Copper-Bearing Magnetite in one Area

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.347-353.157 ◽

2011 ◽

Vol 347-353 ◽

pp. 157-162

Author(s):

Jun Liu ◽

Jiang An Chen

Keyword(s):

Magnetic Separation ◽

Experimental Research ◽

Low Grade ◽

Research Subjects ◽

Flotation Process ◽

Valuable Metal ◽

Comprehensive Utilization ◽

Iron Concentrate ◽

Low Intensity ◽

National Resource

Recovering valuable metal from tailings has always been one of national resource comprehensive utilization key research subjects. There are copper-bearing magnetite which contains 43.31% of iron and 0.21% of copper in some places. After grinding-low intensity magnetic separation-flotation process can get 68.87% of iron concentrate with recovery 64.39% and copper concentrate which contain copper 12.67% with recovery of 75.30%. The experiment results will provide an effective way to comprehensive utilize the resource in one area.

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Experiment Research on Comprehensive Recovery of Carbon and Iron from Flue Dust

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.721.618 ◽

2013 ◽

Vol 721 ◽

pp. 618-621

Author(s):

Yi Miao Nie ◽

Bin Wang ◽

Miao Chen ◽

Shu Xian Liu

Keyword(s):

Magnetic Separation ◽

Iron Concentration ◽

Test Results ◽

Experiment Research ◽

Separation Technology ◽

Iron Concentrate ◽

Flue Dust ◽

Comprehensive Recovery

The properties of the flue dust of an iron-making plant and the results of separation experiment were given. The test results show that the flue dust could be enriched by gravity-flotation-magnetic separation technology to produce carbon concentrate and iron concentration. The results showed that 56% iron concentrate and 65% carbon concentrate could be got.

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Experiment on Recovery of Multi-Metal from Zinc Volatile Kiln Slag in Xining

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.723.901 ◽

2015 ◽

Vol 723 ◽

pp. 901-905

Author(s):

Guo Dong Li ◽

Jian Jun Fang ◽

Tai Guo Jiang ◽

Ke Jun Bi

Keyword(s):

Magnetic Separation ◽

Combined Process ◽

Iron Concentrate ◽

Copper Zinc ◽

Comprehensive Recovery

For the comprehensive recovery of copper, zinc, silver and iron from the zinc volatile kiln slag in Xining, exploratory experiments were conducted by adopting single flotation, magnetic separation and combined process of magnetic separation and flotation. The results showed that the above process cannot effectively recover copper, zinc and silver from the ore. The recovery of iron is better by single magnetic separation. The grade of iron concentrate reaches 69.05% and the recovery is 41.86%.

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Comprehensive Recovery of Carbon and Iron from Fly Ash

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.634-638.3321 ◽

2013 ◽

Vol 634-638 ◽

pp. 3321-3324

Author(s):

Jia Liu ◽

Qin Zhang ◽

Song Mao ◽

Xian Hai Li ◽

Shen Jun Zhang

Keyword(s):

Fly Ash ◽

Environmental Pollution ◽

Magnetic Separation ◽

Solid Wastes ◽

Process Flow ◽

Flotation Tailings ◽

Iron Enrichment ◽

Iron Concentrate ◽

Ignition Loss ◽

Comprehensive Recovery

Fly ash, which is nominally solid wastes generated during the combustion of coal, contains plenty of valuable minerals. Thus, comprehensive recovery of these valuable minerals not only solves environmental pollution problems but also realizes secondary utilization and added values increase of fly ash resources. The Joint process flow of flotation and magnetic separation was adopted in the experiments to recover carbon and iron from fly ash comprehensively, and good technical indexes had been obtained. Flotation separation was conducted on a sort of fly ash whose ignition loss was about 17%. And the ignition loss of concentrates and tailings obtained are above 55% and below 5%, respectively, which can be for further use. Based on the relatively high contents of iron in flotation tailings, magnetic separation for iron enrichment was carried on subsequently. After concentration, the content of Fe2O3 in iron concentrate is above 60%.

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Test Research on Comprehensive Recovery of Carbon and Iron from Blast Furnace Flue Dust

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.543-547.3826 ◽

2014 ◽

Vol 543-547 ◽

pp. 3826-3829 ◽

Cited By ~ 1

Author(s):

Yi Miao Nie ◽

Qi Hui Dai

Keyword(s):

Blast Furnace ◽

Magnetic Separation ◽

Iron Concentration ◽

Test Results ◽

Separation Technology ◽

Iron Concentrate ◽

Flue Dust ◽

Comprehensive Recovery

The properties of the flue dust of an iron-making plant and the results of separation experiment were given. The test results show that the flue dust could be enriched by flotation-gravity-magnetic separation technology to produce carbon concentrate and iron concentration. The results showed that 56.67% iron concentrate and 65.29% carbon concentrate could be got.

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A Comprehensive Recovery of Copper-Iron Experimental Research in the Copper Smelting Slag

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.926-930.4197 ◽

2014 ◽

Vol 926-930 ◽

pp. 4197-4200 ◽

Cited By ~ 1

Author(s):

Xing Ke Shang ◽

Zhuo Yue Lan ◽

Qi Fu Zhang ◽

Ting Ting Li

Keyword(s):

Magnetic Separation ◽

Experimental Research ◽

Mineral Resources ◽

Closed Circuit ◽

Copper Smelting ◽

Copper Concentrate ◽

Iron Concentrate ◽

Valuable Metals ◽

Smelting Slag ◽

Comprehensive Recovery

With the depletion of mineral resources, more attention is paid on the secondary resources to recover valuable metals. In this paper, a research is carried out to recover copper and iron from copper smelting slag by flotation and magnetic separation. The influence of grinding fineness and collectors on flotation of copper are investigated. A copper concentrate is obtained by flotation and an iron concentrate is obtained by magnetic separation in the closed circuit flowsheet. The copper concentrate contains 18.86% Cu with a recovery of 72.36%, and the iron concentrate contains 52.24% Fe with a recovery of 70.87%.

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Experimental Studies on a Mineral Containing Titanium in Baoding Area

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.826.34 ◽

2013 ◽

Vol 826 ◽

pp. 34-37 ◽

Cited By ~ 1

Author(s):

Guo Zhen Liu ◽

Shu Juan Dai ◽

Li Mei Bai ◽

Yu Xin Ma ◽

Yong Zhang

Keyword(s):

Magnetic Separation ◽

High Intensity ◽

Ph Value ◽

Experimental Studies ◽

Mineral Processing ◽

Shaking Table ◽

Gravity Concentration

The main elements can be recovered for mineral processing in a mineral containing titanium of Baoding area were Ti, Fe and V, and the elements in the main gangue minerals were Si and Al. Gravity concentration, gravity concentration-high intensity magnetic separation and gravity concentration-flotation tests were performed on the ore sample respectively. The results showed that, in the test of shaking table, when the grinding fineness was -0.074mm 93%, the productivity of concentrate can reach 32.24%; when grinding fineness was -0.074mm 93%, after gravity concentration-magnetic separation, 30.25% of concentrate productivity can be attained; when the grinding fineness was -0.074mm 85%, after gravity concentration-flotation, the productivity of concentrate was 3.31%. Maybe it's the condition of the tests wasn't controlled well, especially adjusting pH value in the flotation stage, it's hard to control, so the results were not very good.

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