Effect of Reagent Regime on Flotation Performance of Refractory Oxidized Copper Ores Containing a High Content of Slime

2013 ◽  
Vol 807-809 ◽  
pp. 2351-2355
Author(s):  
Qi Cheng Feng ◽  
Shu Ming Wen ◽  
Wen Juan Zhao ◽  
Ci Yun Chen ◽  
He Fei Zhao ◽  
...  
Keyword(s):  
Copper Recovery ◽  
Closed Circuit ◽  
Flotation Reagents ◽  
Flotation Performance ◽  
Concentrate Grade ◽  
Copper Ores

The study aimed to explore appropriate flotation reagents to recover copper minerals from a high content of slime and refractory oxidized copper ores. Based on the research on the properties of the material, the reagent regime was investigated and a technological flowsheet consisting of one roughing flotation, two concentrate flotation, three scavenging flotation and one concentrate-scavenging flotation was adopted to perform the closed circuit floatation experiment. The optimum depressor of flotation experiment was determined as CHO, activator as (NH4)2SO4 and collector as isoamyl xanthogenate. Under such a condition of reagent types and their appropriate reagent dosages, a copper recovery of 75.03% with a concentrate grade of 18.01% was obtained.

Comprehensive Recovery of Valuable Metals from Copper Polymetallic Sulphide Ore

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.

Research on Flotation Tests of Sulfide Copper Ore from Yunan

2013 ◽  
Vol 634-638 ◽  
pp. 3466-3471 ◽  
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.

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

2013 ◽  
Vol 803 ◽  
pp. 131-136 ◽  
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.

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

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.

Influence of Flotation Reagents on Utilization of Complex and Refractory Lead Oxide Ores

2013 ◽  
Vol 868 ◽  
pp. 408-411
Author(s):  
Qi Cheng Feng ◽  
Shu Ming Wen ◽  
Yong Jun Xian ◽  
Yi Jie Wang ◽  
Wen Juan Zhao
Keyword(s):  
Sodium Silicate ◽  
Lead Oxide ◽  
Closed Circuit ◽  
Flotation Reagents ◽  
Sulfidizing Agent ◽  
Lead Recovery ◽  
Concentrate Grade

The study aimed to explore appropriate flotation reagents to utilize lead minerals from complex and refractory lead oxide ores in Yunnan. Based on the research on the properties of the material, the reagent regime was investigated and a technological flowsheet consisting of one roughing flotation, two scavenging flotation and two concentrate flotation was adopted to perform the closed circuit flotation experiment. The optimum regulator of flotation experiment was determined as sodium silicate, sulfidizing agent as Na2S and collector as isoamyl xanthogenate. Under such a condition of reagent types and their appropriate reagent dosages, a lead recovery of 76.55% with a concentrate grade of 58.67% was obtained, which effectively improved utilization of lead resource.

The Effect of Different Collectors on Oxidised Copper Ores Flotation

2014 ◽  
Vol 962-965 ◽  
pp. 814-817
Author(s):  
Tai Guo Jiang ◽  
Jian Jun Fang ◽  
Tie Min Zhang ◽  
Shan Wang ◽  
Ying Bo Mao
Keyword(s):  
Sichuan Province ◽  
Closed Circuit ◽  
Process Conditions ◽  
Copper Concentrate ◽  
Sulfide Flotation ◽  
Concentrate Grade ◽  
Copper Ores ◽  
Flotation Behavior

For a refractory oxidised copper ores in Sichuan province, studing the different collectors on the influence of oxidised copper ores sulfide flotation behavior. The results showed that: the collecting performance of sodium isoamylxanthate was better. When the dosage of sodium isoamylxanthate was 550g/t, the copper concentrate grade of 19.09% could be obtained and recovery was 82.65% under the appropriate process conditions in the closed circuit experiment.

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%.

Recovery of Silver from Zinc Leach Residue by Flotation

2012 ◽  
Vol 524-527 ◽  
pp. 1041-1046
Author(s):  
Jian Liu ◽  
Shu Ming Wen ◽  
Dan Dan Wu
Keyword(s):  
Sodium Chloride ◽  
Detrimental Effect ◽  
Leach Residue ◽  
Optimum Conditions ◽  
Diethyl Dithiocarbamate ◽  
Flotation Method ◽  
Flotation Performance ◽  
Concentrate Grade

The study aims to recovery of silver minerals from zinc leach residue by flotation method with mixed collectors, namely, ammonium dibutyl dithiophosphate (ADD) and diethyl dithiocarbamate (DD). The effect of key parameters, i.e., grinding fineness, dosage of collectors and dosage of sodium chloride on the flotation performance was investigated. The results indicate that dosages of ADD and DD have both significant effects on the flotation performance, and sodium chloride plays an important role in the increase of the grade of silver, by eliminating the detrimental effect of Zn2+ in the pulp. The optimum conditions for flotation of silver from the material were identified as grinding fineness of 90%, dosage of ADD at 400 g/t, dosage of DD at 75 g/t and dosage of NaCl at 60 g/t; under such a condition, a sliver recovery of 76.92% with a concentrate grade of 2012.30 g/t was achieved, and the tailing from the flotation has a lower sliver grade of 17.30g/t, with only 15.04% of silver lost in the tailing.

Data Mining Utilization for Plant Historical Processing Accumulated Data

2013 ◽  
Vol 411-414 ◽  
pp. 1040-1043
Author(s):  
Qing Li ◽  
Bao Liang Ge ◽  
Jie Liu ◽  
Yan Xiong Fu
Keyword(s):  
Data Mining ◽  
Positive Relationship ◽  
Copper Recovery ◽  
Mining Technology ◽  
Copper Concentrate ◽  
Processing Data ◽  
Total Metal ◽  
Plant Processing ◽  
Concentrate Grade ◽  
Relationship Of

A large amount of processing data was accumulated within plant processing. And its necessary to use this data for plant processing as well as its administration. In this article the data mining technology and its utilization were discussed, according to research results, the fitting relationship is:Cu recovery (%)= -1.1221*lime dosage (Kg/t)+92.6, the lime dosage alteration effect on copper recovery are 1.41% absolutely and 1.66% relatively. The fitting relationship of copper concentrate grade and lime dosage is:Cu grade (%)= 0.0554*lime dosage (Kg/t)+19.271, the lime dosage alteration effect on copper recovery are 0.070% absolutely and 0.36% relatively. It can be concluded that the lime dosage has a great effect on copper recovery, and lime dosage is relative to the total metal minerals in the ore, because the fitting relationship of the lime dosage and metal minerals summation in the ore is:Dosage (Kg/t)= 0.0487*total metal minerals (%)+2.6441, the lime dosage show a positive relationship with total metal minerals in the ore.

scholarly journals Parametric Optimization in Rougher Flotation Performance of a Sulfidized Mixed Copper Ore

Minerals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 660 ◽  
Author(s):  
Asghar Azizi ◽  
Mojtaba Masdarian ◽  
Ahmad Hassanzadeh ◽  
Zahra Bahri ◽  
Tomasz Niedoba ◽  
...  
Keyword(s):  
Parametric Optimization ◽  
Goal Function ◽  
Copper Recovery ◽  
Critical Parameters ◽  
Agitation Rate ◽  
Methyl Isobutyl ◽  
Copper Ore ◽  
Effective Factors ◽  
Flotation Cell ◽  
Flotation Performance

The dominant challenge of current copper beneficiation plants is the low recoverability of oxide copper-bearing minerals associated with sulfide type ones. Furthermore, applying commonly used conventional methodologies does not allow the interactional effects of critical parameters in the flotation processes to be investigated, which is mostly overlooked in the literature. To tackle this issue, the present paper aimed at characterizing the behavior of five key effective factors and their interactions in a sulfidized copper ore. In this context, dosage of collector (sodium di-ethydithiophosphate, 60–100 g/t), depressant (sodium silicate, 80–120 g/t) and frother (methyl isobutyl carbinol (MIBC), 6–10 g/t), pulp pH (7–11) and agitation rate (900–1300 rpm) were examined and statistically analyzed using response surface methodology. Flotation experiments were conducted in a Denver type agitated flotation cell at the rougher stage. The experimental results showed that increasing the pH (from 8 to 10) at low agitation rate (1000 rpm) enhanced the recovery from 80.36% to 85.22%, while at high agitation rate (1200 rpm), a slight declination occurred in the recovery. Meanwhile, increasing the collector dosage at a lower frother value (7 g/t), caused a reduction of about 4.44% in copper recovery owing to the interactions between factors, whereas at a higher frother level (9 g/t), the recovery was almost unchanged. The optimization process was also performed using the goal function approach, and maximum copper recovery of 92.75% was obtained using ~70 g/t collector, 110 g/t depressant, 7 g/t frother, pulp pH of 10 and 1000 rpm agitation rate.

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