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.

Optimization Study on Flotation Conditions of Complex and Refractory Lead Oxide Ores

2013 ◽  
Vol 868 ◽  
pp. 412-416
Author(s):  
Qi Cheng Feng ◽  
Shu Ming Wen ◽  
Jiu Shuai Deng ◽  
Chao Lv ◽  
Wen Juan Zhao
Keyword(s):  
Sodium Silicate ◽  
Lead Oxide ◽  
Flotation Reagents ◽  
Optimum Parameters ◽  
Optimization Study ◽  
Lead Recovery ◽  
Concentrate Grade

The optimization condition of flotation reagents of complex and refractory lead oxide ores from Yunnan was studied in this paper. Based on the research on the properties of the material, the grinding fineness and reagent dosages were investigated and a technological flowsheet consisting of one roughing flotation, two scavenging flotation and two concentrate flotation was adopted. The optimum parameters of flotation experiment were determined as grinding fineness of 85%, dosage of sodium silicate at 800 g/t, dosage of Na2S at 1200 g/t and dosage of isoamyl xanthate at 600 g/t. Under such a condition, a lead recovery of 76.55% with a concentrate grade of 58.67% was obtained, which effectively improved utilization of lead resource.

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.

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%.

scholarly journals Extraction of Lead and Zinc from a Rotary Kiln Oxidizing Roasting Cinder

Metals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 465 ◽  
Author(s):  
Junhui Xiao ◽  
Kai Zou ◽  
Wei Ding ◽  
Yang Peng ◽  
Tao Chen
Keyword(s):  
Sulfuric Acid ◽  
Rotary Kiln ◽  
Lead Oxide ◽  
Acid Leaching ◽  
Chemical Compounds ◽  
Shaking Table ◽  
Lead And Zinc ◽  
Lead Recovery ◽  
Solid Liquid ◽  
Acid Dosage

In this study, sulfuric acid leaching and gravity shaking-table separation by shaking a table are used to extract lead and zinc from a Pb-Zn oxidizing roasting cinder. The oxidizing roasting cinder—containing 16.9% Pb, 30.5% Zn, 10.3% Fe and 25.1% S—was obtained from a Pb-Zn sulfide ore in the Hanyuan area of China by a flotation-rotary kiln oxidizing roasting process. Anglesite and lead oxide were the main Pb-bearing minerals, while zinc sulfate, zinc oxide and zinc ferrite were the main Zn-bearing minerals. The results show that a part of lead contained in lead oxide is transformed to anglesite, and a 3PbO·PbSO4·H2O-dominated new lead mineral phase after acid leaching. A zinc leaching efficiency of 96.7% was obtained under the leaching conditions used: a leaching temperature of 55 °C; a leaching time of 90 min; a sulfuric acid dosage of 20%; a sulfurous acid dosage of 4%; a cinder particle size of <0.3 mm; and a solid-liquid ratio of R = 1:4. After the gravity shaking-table separation, a lead concentrate with 50.2% Pb, 2.33% Zn and lead recovery of 86.0% was produced. The main chemical compounds in leaching residue are anglesite, 3PbO·PbSO4·H2O, SiO2 and ZnFe2O4, while the main chemical compounds in lead concentrate are anglesite, 3PbO·PbSO4·H2O and SiO2.

Lead recovery from spent lead acid battery paste by hydrometallurgical conversion and thermal degradation

2019 ◽  
Vol 38 (3) ◽  
pp. 263-270
Author(s):  
Wenke Liu ◽  
Qingwei Qin ◽  
Dengqi Li ◽  
Guangqiang Li ◽  
Yinjie Cen ◽  
...  
Keyword(s):  
Thermal Degradation ◽  
Lead Oxide ◽  
Lead Dioxide ◽  
Scanning Calorimetry ◽  
Lead Carbonate ◽  
Lead Acid Batteries ◽  
Novel Approach ◽  
Lead Recovery ◽  
Main Component ◽  
Lead Acid

Spent lead paste is the main component in lead-acid batteries reaching end of life. It contains about 55% lead sulphate and 35% lead dioxide, as well as minor amounts of lead oxide. It is necessary to recycle spent lead paste with minimal pollution and low energy consumption instead of the conventional smelting method. In this study, a novel approach involving hydrometallurgical desulphurisation and thermal degradation is developed to recover lead as PbO products from spent lead acid batteries. First, the desulphurisation effects and phase compositions of products with different transforming agents were compared, and the optimum conditions using (NH4)2CO3 as a transforming agent were determined. And then, the thermal degradation processes of both precursors lead carbonate and lead dioxide were investigated to prepare α-PbO, Pb3O4, and β-PbO products in argon and air atmospheres, respectively. Both the desulphurisation precursors and the calcination products were characterised by thermogravimetry and differential scanning calorimetry, X-ray diffraction, and scanning electron microscopy. The results showed that the lead oxide products were prepared, including α-PbO at 450°C in argon, Pb3O4 and β-PbO at 480°C and 620°C in air, respectively.

Study on Flotation Separation Experiment of Molybdenite Using New Type Collector

2013 ◽  
Vol 753-755 ◽  
pp. 81-84 ◽  
Author(s):  
Qi Dong Zhang ◽  
Xiao Li Li ◽  
Ming Ming Li ◽  
Chuang Yuan
Keyword(s):  
Sodium Silicate ◽  
Closed Circuit ◽  
Test Results ◽  
Flotation Process ◽  
Good Index ◽  
New Type ◽  
Molybdenum Concentrate

The flotation process of molybdenum ore from Liaoning in China with a new collector DMC is investigated. The results show that the collector DMC has stronger collecting power and better selectivity for molybdenite. Compared with traditional kerosene and xanthate flotation,this process using the new collector could have a good index with 60% sodium silicate. The closed-circuit test results are as follows:the molybdenum concentrate of 53.04% with the molybdenum recovery of 95.02% is obtained.

Research of Refractory Oxidized Lead-Zinc Ore in Lanping

2012 ◽  
Vol 581-582 ◽  
pp. 1110-1114
Author(s):  
Hong Xiao ◽  
Quan Jun Liu ◽  
Mei Guang Jiang ◽  
Jun Long Yang
Keyword(s):  
Zinc Oxide ◽  
Oxidation Rate ◽  
Recovery Rate ◽  
Lead Oxide ◽  
Low Grade ◽  
Lead Sulphide ◽  
Silver Recovery ◽  
Oxide Mineral ◽  
Lead Zinc ◽  
Concentrate Grade

The lead-zinc mine is a low grade of refractory oxide mineral. The grade of lead is 2.84%, with the oxidation rate of 90.95%.The grade of zinc is 3.223%, and with the oxidation rate of 87.9%.The grade of silver is 99.5g/t.This test used the silver-lead sulphide flotation at first, then depressing zinc oxide and floating lead oxide mineral. As a result, in silver-lead sulphide concentrate, the silver grade for 1180 g/t, lead 11.45%. Lead and silver recovery rate were 18.41% and 51.14% respectively. Lead oxide concentrate grade is 32.59%, and the silver is 518g/t. Lead and silver recovery rate were 68.34% and 29.18%. Zinc oxide concentrate grade is 32.65%, including 1.14% lead; zinc recovery rate is 80.11%.

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.

Experimental Study on Flotation of a Yunnan Sulfide a Low Grade Copper Ore

2013 ◽  
Vol 734-737 ◽  
pp. 935-940
Author(s):  
Ju Wang ◽  
Hui Xin Dai ◽  
Yan Hua Guo
Keyword(s):  
Experimental Study ◽  
Copper Sulfide ◽  
Closed Circuit ◽  
Low Grade ◽  
Copper Ore ◽  
Concentrate Grade ◽  
Ore Grade

Based on a single Yunnan copper sulfide, we conducted a series of flotation test research. The results indicate that the raw ore grade is 0.78%,by closed circuit process of 1stage of roughing, 1stage of scavenging and 2 stages of cleaning flotation, 14.85% concentrate grade with 92.49% recovery can be obtained, and the index is ideal.

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