Separation Test of Copper-Lead Ore from Guangxi

2013 ◽  
Vol 295-298 ◽  
pp. 3034-3037 ◽  
Author(s):  
Hong Xiao ◽  
Quan Jun Liu ◽  
Mei Guang Jiang ◽  
Jun Long Yang
Keyword(s):  
Core Sample ◽  
Flow Sheet ◽  
High Grade ◽  
Flotation Process ◽  
Copper Concentrate ◽  
Effective Separation ◽  
Separation Test ◽  
Copper Lead

The test ore is a kind of relatively high grade of sulphide copper-lead ore, the difficulties of test is the effective separation of copper and lead, the lead grade of 13.08% and copper grade of 1.33% in comprehensive core sample. After the exploring test of principle flow sheet, the flotation process of depress lead and float copper is used. As a result, the grade of copper is 25.25% and lead is 6.23% in the copper concentrate, the grade of lead is 51.23% and copper is 2.44% in lead concentrate. The test research has certain guiding significance about copper and lead separation on production.

Research on Separation of Copper-Lead Mixed Concentrate

2012 ◽  
Vol 581-582 ◽  
pp. 1096-1101
Author(s):  
Mei Guang Jiang ◽  
Quan Jun Liu ◽  
Hong Xiao ◽  
Jun Long Yang
Keyword(s):  
Oxidation Rate ◽  
Flotation Process ◽  
Copper Concentrate ◽  
Lead And Zinc ◽  
High Oxidation ◽  
Copper Lead

The ore is the oxide ore of Copper lead and zinc, The ore has high Oxidation rate of Pb,nearly 50%. which contains 3.56% of Pb,3.86% of Zn,0.209% of Cu. The flotation flowsheet consisting of the scene is “Part of the mixed flotation—inhibitor Zn and Pb-Cu mix flotation—Zn flotation—Cu-Pb separation”. But the Cu-Pb separation was not effective. After trials, we eventually developed the flotation process--that is once rough concentration、cubic concentration and twice scavenger concentration， the process can obtain copper concentrate which contains 17.87% of Cu,7.63% of Pb,and lead concentrate which contains 2.67% of Cu,53.93% of Pb.

Research on Separation of Mixed Copper-Lead Concentrate

2013 ◽  
Vol 470 ◽  
pp. 818-822
Author(s):  
Di Fei Li ◽  
Quan Jun Liu ◽  
Zhuo Yue Lan
Keyword(s):  
Activated Carbon ◽  
Single Stage ◽  
Copper Recovery ◽  
Two Stage ◽  
Copper Concentrate ◽  
Lead Recovery ◽  
Separation Test ◽  
Copper Lead

This paper presented the results of an investigation into effects of reagent removal by activated carbon, regrinding and combined depressant on the separation of chalcopyrite and galena. With the utilization of a selective collector called Z-200, a separation test of mixed copper-lead concentrate was conducted. By adopting single-stage roughing, two-stage scavenging, two-stage cleaning, a copper concentrate of containing 21.72% Cu, 7.81% Pb with the copper recovery of 91.28%, and a lead concentrate of containing 62.16% Pb, 0.82% Cu with the lead recovery of 95.24% were obtained.

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.

Recovery of high-grade copper concentrate from sulfur-rich porphyry ore using tricarboxystarch micromolecule as pyrite depressant

2021 ◽  
Vol 168 ◽  
pp. 106916
Author(s):  
Sultan Ahmed Khoso ◽  
Zhiyong Gao ◽  
Wei Sun
Keyword(s):  
High Grade ◽  
Copper Concentrate

scholarly journals Ammoniacal Solvoleaching of Copper from High-Grade Chrysocolla

2020 ◽  
Vol 6 (4) ◽  
pp. 589-598
Author(s):  
Lukas Gijsemans ◽  
Joris Roosen ◽  
Sofía Riaño ◽  
Peter Tom Jones ◽  
Koen Binnemans
Keyword(s):  
Silica Gel ◽  
Aqueous Ammonia ◽  
Acid Leaching ◽  
Leach Solution ◽  
Phase System ◽  
Flow Sheet ◽  
High Grade ◽  
Gel Formation ◽  
Metallurgical Processing ◽  
Three Phase

AbstractThe copper silicate ore chrysocolla forms a large potential copper resource, which has not yet been fully exploited, due to difficulties associated with its beneficiation by flotation and metallurgical processing. Direct acid leaching of chrysocolla causes silica gel formation. Therefore, in this work, the feasibility of solvometallurgical methods to leach copper from high-grade chrysocolla while avoiding issues with silica gel formation was assessed. Ammoniacal solvoleaching was performed with a solvent comprising the chelating extractant LIX 984 N or the acidic extractant Versatic acid 10 in an aliphatic diluent (ShellSol D70 or GTL Fluid G70), combined with a small volume of aqueous ammonia. In the three-phase system, aqueous ammonia dissolves copper from milled and sieved chrysocolla, while copper is simultaneously extracted to the organic phase, releasing ammonia that can be reused for further extraction. The best results were obtained with LIX 984 N as extractant: using a 50 vol% LIX 984 N solution, about 75% of copper could be extracted after 60 min of leaching at 25 °C. The stripping of copper from the pregnant leach solution was optimized. Quantitative stripping of copper was achieved with 1.89 M sulfuric acid and the final aqueous solution of copper sulfate had a concentration of 33 g L−1. Experiments in a leaching reactor (1 L) and small battery of mixer-settlers (3 stages, 35 and 143 mL effective volume in the mixer and the settler, respectively, per stage) were successfully conducted and allowed to recover copper with a purity of 99.9%. A conceptual flow sheet has been developed. Graphical Abstract

scholarly journals Electronic Medical Record–Based Radiation Oncology Toxicity Recording Instrument Aids Benchmarking and Quality Improvement in the Clinic

2018 ◽  
Vol 14 (3) ◽  
pp. e186-e193 ◽  
Author(s):  
Kevin Albuquerque ◽  
Kellie Rodgers ◽  
Ann Spangler ◽  
Asal Rahimi ◽  
DuWayne Willett
Keyword(s):  
Medical Record ◽  
Electronic Medical Record ◽  
Radiation Oncology ◽  
Local Population ◽  
Free Text ◽  
Flow Sheet ◽  
High Grade ◽  
Recording Instrument ◽  
Uniform Sample ◽  
High Level

Purpose: The on-treatment visit (OTV) for radiation oncology is essential for patient management. Radiation toxicities recorded during the OTV may be inconsistent because of the use of free text and the lack of treatment site–specific templates. We developed a radiation oncology toxicity recording instrument (ROTOX) in a health system electronic medical record (EMR). Our aims were to assess improvement in documentation of toxicities and to develop clinic toxicity benchmarks. Methods: A ROTOX that was based on National Cancer Institute Common Terminology Criteria for Adverse Events (version 4.0) with flow-sheet functionality was developed in the EMR. Improvement in documentation was assessed at various time intervals. High-grade toxicities (ie, grade ≥ 3 by CTCAE) by site were audited to develop benchmarks and to track nursing and physician actions taken in response to these. Results: A random sample of OTV notes from each clinic physician before ROTOX implementation was reviewed and assigned a numerical document quality score (DQS) that was based on completeness and comprehensiveness of toxicity grading. The mean DQS improved from an initial level of 41% to 99% (of the maximum possible DQS) when resampled at 6 months post-ROTOX. This high-level DQS was maintained 3 years after ROTOX implementation at 96% of the maximum. For months 7 to 9 after implementation (during a 3-month period), toxicity grading was recorded in 4,443 OTVs for 698 unique patients; 107 episodes of high-grade toxicity were identified during this period, and toxicity-specific intervention was documented in 95%. Conclusion: An EMR-based ROTOX enables consistent recording of treatment toxicity. In a uniform sample of patients, local population toxicity benchmarks can be developed, and clinic response can be tracked.

Using of Roasting Leaching Methods for Copper Recovery from a Flotation Concentrate of Yangla Copper Ore

2013 ◽  
Vol 868 ◽  
pp. 403-407
Author(s):  
Ci Yun Chen ◽  
Shu Ming Wen ◽  
He Fei Zhao ◽  
Chao Lv ◽  
Yi Jie Wang
Keyword(s):  
Copper Recovery ◽  
Copper Ore ◽  
Flotation Process ◽  
Copper Concentrate ◽  
Solid Ratio ◽  
Copper Leaching ◽  
Guaranteed Cost ◽  
Fine Particle Size ◽  
Leaching Methods ◽  
Ore Dressing

Through earliest experimental study to tailings of Yangla copper ore known that under the best conditions of the flotation process can be obtained a copper concentrate which copper grade of 1.43% and recovery was 29.71%. Due to copper minerals embedded in this materials at a very fine particle size, and closely symbiosis with iron content and quartz, lead to it difficult to enrichment through ore dressing methods. And copper minerals mainly exist in the form of sulfide copper mineral, it can not by leaching method for processing directly, thus put forward a process to deal with this materials of enriched concentrate conduct to sulfuric roasting-leaching, which on the premise of guaranteed cost is not high, ultimately achieve the goal of recycling all kinds of valuable elements. Through the test of low temperature sulphation roasting - leaching to the flotation of copper concentrate shows that under the conditions of temperature of 450 °C for copper concentrate roasting 135 minutes, and after the calcine cooling, then with concentration of 4% sulfuric acid and Liquid-solid ratio of 3:1 leaching of 80 minutes, ultimately available to the test targets of copper leaching rate of around 81%.

Research on the Flotation Process of Old Tailing in Burma

2013 ◽  
Vol 734-737 ◽  
pp. 1073-1076
Author(s):  
Jun Long Yang ◽  
Quan Jun Liu ◽  
Yan Hua Guo ◽  
Mei Guang Jiang ◽  
Hong Xiao
Keyword(s):  
Chemical Analysis ◽  
Phase Analysis ◽  
Oxidation Rate ◽  
Concentration Index ◽  
Sodium Sulfide ◽  
Potassium Dichromate ◽  
Flotation Process ◽  
Separation Effect ◽  
Effect Of Copper ◽  
Separation Test

The test simple was taken from old tailing in Burma. The results of the chemical analysis and the phase analysis indicated that the grade of Lead was 2.84%, with the oxidation rate of 58.33% and the grade of zinc was 3.22%, with the oxidation rate of 16.56% in the old tailing. Through the research of the flotation separation test, the optimal grinding fineness (-0.044mm) was accounts for 73%. The optimum dosage of sodium sulfide was 1500g/t and the dosage of potassium dichromate was 600g/t. The separation effect of copper and lead was better, the ultimate concentration index: the grade of copper was 16.58% in the copper concentrate and the recovery was 56.18%. The grade of lead was 48.83% and the recovery was 96.67% in the lead concentrate.

Applied Research of Cyclonic-Static Micro-Bubble Flotation Column on the Microfine Hematite Flotation

2013 ◽  
Vol 641-642 ◽  
pp. 242-245
Author(s):  
Wei Zhi Wang ◽  
Miao Miao Han ◽  
Chun Guang Yang
Keyword(s):  
Recovery Rate ◽  
Applied Research ◽  
High Grade ◽  
Operation Condition ◽  
Flotation Process ◽  
Flotation Tailings ◽  
Flotation Column ◽  
Iron Mine ◽  
Micro Bubble ◽  
Concentrate Grade

According to the situation of high grade of flotation tailings in flotation process of SiJiYing Iron Mine, static-swirl micro-bubble flotation column was used in micro-fine hematite flotation tests. Tests on operation condition, reagent condition and flotation flowsheet were done. Compared with the flotation machine test, he final result was that concentrate grade was enhanced by 2.42%, recovery increased by 6.58%, and tailings grade was reduced by 2.01%,recovery rate reduced by 3.25%.Ideal beneficiation indexes were obtained.

Flotation Test of High Sulfur Copper Ore in the Northwest in Yunnan

2014 ◽  
Vol 556-562 ◽  
pp. 201-204
Author(s):  
Zhi Guo Zhang ◽  
Quan Jun Liu ◽  
Jin Cheng Ran
Keyword(s):  
Closed Circuit ◽  
High Grade ◽  
Copper Ore ◽  
Copper Concentrate

The experimental ore belongs to a kind of typical high sulfur ore,which makes it to be a refractory ore.The copper in the ore has a relative high grade which comprehensively reaches 3.78% ,with the chalcopyrite occurs the main form.After a serious of condition tests,a final flowsheet with once roughing,twice cleaning and twice scavenger is determined.Through a closed-circuit,it could obtain copper concentrate with grade of 20.91% and recovery of 91.61%

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