Experimental Study on Flotation Process Conditions of Lead-Zinc Ore

2012 ◽  
Vol 454 ◽  
pp. 183-188
Author(s):  
Ming Ming Li ◽  
Qi Dong Zhang
Keyword(s):  
Experimental Study ◽  
Experimental Studies ◽  
Process Conditions ◽  
Good Separation ◽  
Zinc Recovery ◽  
Flotation Process ◽  
Lead Recovery ◽  
Lead Zinc ◽  
Concentrate Grade ◽  
Zinc Concentrate

On the basis of analyzing sample properties of lead-zinc ore, the optimum experimental condition combination was obtained from systematic experimental studies of the conditions. The experimental condition combination was validated by the full process closed-circuit experiment, which showed that the good separation indexes on lead grade of 59.78% in lead concentrates, the lead recovery of 87.50%, and zinc concentrate grade of 56.33%, the zinc recovery of 93.60%, and sulfur concentrate contained 0.50% of lead, 0.47% of zinc.

scholarly journals Critical importance of pH and collector type on the flotation of sphalerite and galena from a low-grade lead–zinc ore

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Abdolrahim Foroutan ◽  
Majid Abbas Zadeh Haji Abadi ◽  
Yaser Kianinia ◽  
Mahdi Ghadiri
Keyword(s):  
Iron Ore ◽  
Low Grade ◽  
Zinc Recovery ◽  
Flotation Process ◽  
Ph Values ◽  
Lead And Zinc ◽  
Optimum Ph ◽  
Iron And Zinc ◽  
Lead Zinc ◽  
Zinc Concentrate

AbstractCollector type and pulp pH play an important role in the lead–zinc ore flotation process. In the current study, the effect of pulp pH and the collector type parameters on the galena and sphalerite flotation from a complex lead–zinc–iron ore was investigated. The ethyl xanthate and Aero 3418 collectors were used for lead flotation and Aero 3477 and amyl xanthate for zinc flotation. It was found that maximum lead grade could be achieved by using Aero 3418 as collector at pH 8. Also, iron and zinc recoveries and grades were increased in the lead concentrate at lower pH which caused zinc recovery reduction in the zinc concentrate and decrease the lead grade concentrate. Furthermore, the results showed that the maximum zinc grade and recovery of 42.9% and 76.7% were achieved at pH 6 in the presence of Aero 3477 as collector. For both collectors at pH 5, Zinc recovery was increased around 2–3%; however, the iron recovery was also increased at this pH which reduced the zinc concentrate quality. Finally, pH 8 and pH 6 were selected as optimum pH values for lead and zinc flotation circuits, respectively.

Experimental Study of a Lead-Zinc Sulfide Comprehensive Recovery

2015 ◽  
Vol 1094 ◽  
pp. 381-384
Author(s):  
Ji Yong Li ◽  
Xiong Tong ◽  
Xian Xie
Keyword(s):  
Experimental Study ◽  
Zinc Sulfide ◽  
Copper Sulfate ◽  
Lead Zinc ◽  
Concentrate Grade ◽  
Comprehensive Recovery ◽  
Zinc Concentrate

A refractory lead-zinc sulfide was studied in this experiment, at which the effect of use of new zinc activator L-23 and a traditional zinc activator copper sulfate are compared. It’s drawn from the results, with use of a new activator L-23, the grade and recovery of zinc concentrate have a significantly increase, and attained a good indicator that the zinc concentrate grade is 43.77%, recovery is 79.62%.

A Novel Combined Flowsheet of Beneficiation and Acid Leaching under High Pressure for Complex Lead-Zinc Ores

2010 ◽  
Vol 92 ◽  
pp. 13-21
Author(s):  
Han Ping Zhang ◽  
Xiao Li Wang ◽  
Xu Ming Wang ◽  
Sheng Jian ◽  
Qun Zhao
Keyword(s):  
High Pressure ◽  
Acid Leaching ◽  
Zinc Recovery ◽  
Selective Flotation ◽  
Lead And Zinc ◽  
Lead Recovery ◽  
Lead Zinc ◽  
Tail Water ◽  
The Cost ◽  
Zinc Concentrate

The run-of-mine of complex lead-zinc ores in Yunnan contains 3.26% lead and 2.54% zinc. When traditional selective flotation flowsheet was adopted, 3.77% yield and 61.92% grade of lead concentrate as well as 5.65% yield and 38.67% grade of zinc concentrate were achieved. Simultaneously, 72.39％ lead recovery and 3.83% zinc grade in lead concentrate as well as 80.64% zinc recovery and 6.39% lead grade in zinc concentrate were obtained. Lead concentrate and zinc concentrate obtained from selective flotation contain each other severely, resulting in low recovery of lead and zinc and severe loss of metal, which influences subsequent smelting flowsheet. In addition, due to requirement of large amount of depressant and activator while separating lead and zinc in the process of mineral processing, the cost is very high and the compositions of tail water which can not be recycled by the plant are very complicated. For the combined flowsheet of beneficiation and metallurgy, bulk flotation flowsheet was adopted. Therefore, 11.22% yield of combined lead and zinc concentrate with 25.55% lead grade, 18.33% zinc grade and 86.36% lead recovery were obtained. Gravity separation technology was utilized to separate combined concentrate of lead and zinc. After selecting out part of high quality lead concentrate, the remaining combined concentrate of lead and zinc was treated by acid leaching under high pressure. The final leaching efficiency of zinc was able to reach 97%. The new combined flowsheet has lots of advantages such as shorter flowsheet of beneficiation, simpler reagents, more direct reuse of backwater and higher recovery of metals.

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%.

Processing of the lead-zinc ore from the Pavlovsk deposit

2020 ◽  
pp. 33-39
Author(s):  
S. S. Plyasovitsa ◽  
◽  
O. A. Kravtsova ◽  
N. V. Ivanova ◽  
I. Yu. Semenov ◽  
...  
Keyword(s):  
Metal Concentration ◽  
High Quality ◽  
Valuable Component ◽  
Flotation Process ◽  
X Ray ◽  
Lead And Zinc ◽  
Mineralogical Study ◽  
Lead Zinc ◽  
Zinc Concentrate

The authors carried out a mineralogical study and substantiated a concentration process developed for the lead-zinc ores of the Pavlovsk deposit. The concentration of the valuable component in each type of concentrate is determined by the amount of pyrite contained in the ore. It was established that the main loss of lead with flotation tailings is associated with oxidized phases, which are mainly found in fine material. Lead sulphides account for 30% of the entire waste tailings. Using the results of the mineralogical study, a flotation process was developed that involves a staged separation of commercial lead and zinc concentrates, as well as waste tailings. The obtained zinc concentrate has a consistently high quality of 57–58% with an 85–90% recovery. The metal concentration in the lead concentrate 1 is 45%, with the recovery being 43%. On the basis of the experimental results, the authors propose to use an X-ray radiometric separation method for coarse ore, which will help reduce the amount of incoming ore by 30% while minimizing the loss of lead and zinc.

Research on the Flotation Process of a Complex Lead-Zinc Ore in Lanping

2012 ◽  
Vol 616-618 ◽  
pp. 638-642
Author(s):  
Jun Long Yang ◽  
Quan Jun Liu ◽  
Mei Guang Jiang ◽  
Hong Xiao
Keyword(s):  
Oxidation Rate ◽  
Recovery Rate ◽  
Flotation Process ◽  
Lead Zinc ◽  
Zinc Concentrate

A kind of complex Pb-Zn ore has been studied. The run-of-mine grade of Lead was 2.84%, with the oxidation rate of 90.95%. And the grade of Zinc was 3.22%, with the oxidation rate of 87.9%. The optimal grinding fineness was about to 94.6%. Use the best reagent combination which obtained by condition test, the final results was that the grade of Lead concentrate was 23.41% and the recovery rate was 86.75%, included silver 805.76 g/t; the grade of the Zinc concentrate was 32.65%, and the recovery rate was 80.11%.

Flotation Separation of High Sulfur Lead-Zinc Ore

2012 ◽  
Vol 454 ◽  
pp. 205-209 ◽  
Author(s):  
Zhi Tao Yuan ◽  
Xiao Long Yu ◽  
Li Ping Liu ◽  
Cheng Liang Wang
Keyword(s):  
Experimental Studies ◽  
Closed Circuit ◽  
Test Results ◽  
Flotation Reagent ◽  
Flotation Reagents ◽  
Selective Flotation ◽  
Different Types ◽  
Lead Zinc ◽  
Process Flowsheets ◽  
Zinc Concentrate

According to the refractory lead-zinc ore properties with high pyrite, the experimental studies were conducted on floatation reagent conditions and closed circuit tests for comprehensive recovering of all types useful minerals. In comparison to the test results of different process flowsheets and different types of flotation reagents, adopting prior flotation lead (Pb)—Zn selective flotation (reagent removal and regrinding of rough concentrate)—S-selective flotation with Zn-tailings. The closed circuit tests were achieved: the grade of lead concentrate was 50.55% with a recovery of 92.25%; The grade of zinc concentrate was 40.12% with a recovery of 85.82%; The grade of sulfur was 48.58% with a recovery of 56.59%; The tailings grades of lead, zinc and sulfur were 0.27%, 0.31%, 3.90% respectively.

Experimental Study on Purification of Magnesite Ore in Liaoning Province

2013 ◽  
Vol 826 ◽  
pp. 48-52
Author(s):  
Jia Hong Han ◽  
Xiao An Li ◽  
Shu Juan Dai ◽  
Zhi You Wang ◽  
Lian Tao Yu
Keyword(s):  
Experimental Study ◽  
Hydrochloric Acid ◽  
Sodium Silicate ◽  
Sodium Hexametaphosphate ◽  
Liaoning Province ◽  
Low Grade ◽  
Reverse Flotation ◽  
Flotation Process ◽  
Mineral Flotation ◽  
Concentrate Grade

A region of liaoning low-grade magnesite ore products mainly for magnesite ,the gangue minerals are mainly hematite,calcite,chlorite,quartz,etc.This experimental using a roughing secondary selected single reverse flotation process,with hydrochloric acid, sodium silicate,sodium hexametaphosphate for adjustment,LKD for collecting agent,the ore are studied,in the conditions of mine ore SiO2 content is 0.85%,MgO content is 95.53%,Fe2O3 content is 0.82%,obtain concentrate SiO2 content is 0.17%,Fe2O3 content is 0.69%,concentrate grade (MgO content) is 97.31%,the recovery is 78.86% of the experimental index.The experimental of related mineral flotation purification provide identification and reference.

Study on Potential-Controlled Flotation Test of a Copper-Lead-Zinc Polymetallic Sulphide Ore

2015 ◽  
Vol 1089 ◽  
pp. 80-88
Author(s):  
Jun Hui Zhang ◽  
Yuan Zhang ◽  
Yong Tao Yang
Keyword(s):  
Copper Sulfate ◽  
Butyl Xanthate ◽  
Flotation Process ◽  
Copper Concentrate ◽  
Sulphide Ore ◽  
Lead And Zinc ◽  
Lead Zinc ◽  
Copper Lead ◽  
Pulp Potential ◽  
Zinc Concentrate

The study on potential-controlled flotation test of differential flotation process was carried out in the light of the change of a certain ore properties. The test used self-developed EMZ-91, as well as conventional collectors of ethyl thio carbamate and butyl xanthate for the flotation of copper, lead and zinc ores respectively, in which the copper sulfate was used as the activator of zinc mineral. The new differential flotation process, which is using lime to regulate pulp potential, produced the copper concentrate grading 27.18% copper at 73.37% recovery, the lead concentrate grading 66.00% lead at 63.00% recovery, and the zinc concentrate grading 55.27% zinc at 87.69% recovery.

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