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Table of ContentsChemistry of Sodium SulfideSulfidization Sodium Sulfide in Sulfide Minerals Flotation Sodium sulfide is one of the most widely used alkali metal sulfides in the flotation of copper, lead, and zinc minerals in their oxidized form. The sulfidization process, developed in the U.S.A. in 1915-20 for oxide copper minerals flotation, is especially suitable for oxidized lead
The copper ions replace zinc atoms on the sphalerite surface creating a pseudocopper mineral surface coverage on the sphalerite which is then collected using copper flotation type collectors. Because most of the iron sulphides also report to the lead flotation tails and so feeds the zinc flotation circuit, typically lime is used to raise pH for iron sulphide depression.
Oct 02, 2016 As an example of the beneficial effect of copper sulfate in the activation of zinc sphalerite toward flotation, the series of results shown in Fig. 1 is of interest. These represent rougher tests on a sample of heavy pyritic ore. The particular sample in question contained about 5.6 zinc as marmatite and was treated in a circuit made alkaline with lime, using pine oil as
The ways to obtain successful Separation of Copper and Lead into individual Concentrates, several process approaches can be examined bulk copper-lead flotation with a reverse flotation stage depressing copper, the same bulk flotation with a reverse flotation to depress lead and a sequential copper-lead-zinc flotation circuit as well as a simple cleaning of the bulk
Aug 28, 2020 In this research, flotation of copper, lead and zinc minerals from a copper oxidesulfide ore was studied. The identification tests showed that the sample is a mixture of quartz, chalcopyrite, galena, cerussite, hemimorphite and iron oxide minerals with 5.04 CuO, 1.61 PbO, 2.07 ZnO and 56.40 SiO 2. The experimental design methodology RSM was
Nov 01, 2001 Bulk copperlead flotation is performed at natural pH using a NaS-NaCN-ZnS04 depressant system, combined with sodium isopropyl xanthate as the collector. The bulk rougher concentrate is cleaned three times before copperlead separation, using the flowsheet shown in
Copper-Lead-Zinc ores. The Cu-Pb-Zn separation process is among the most challenging flotation separations primarily because the first step must entail bulk flotation of the two most readily floatable minerals with these two minerals separated in a differential flotation stage. In this case, as a general rule because both copper and lead minerals tend to float well, these are usually the target bulk flotation
In this work, oxidizing roasting was combined with leaching to separate copper, lead, and zinc from a concentrate obtained by bulk flotation of a low-grade ore sourced from the Jiama mining area of Tibet. The flotation concentrate contained 7.79 Cu, 22.00 Pb, 4.81 Zn, 8.24 S, and 12.15 CaO copper sulfide accounted for 76.97 of the copper, lead sulfide for 25.55 of the lead, and zinc ...
Froth flotation is a very important mineral concentration process that is used to recover a vast array of different minerals containing valuable commodities such as copper, lead, zinc, nickel, molybdenum, tungsten, silver, gold, phosphate and potash.
Shandong 500td Copper Lead and Zinc Ore Bulk Flotation Project. Ore Property Shandong client commissioned Mine Research Institute to conduct ore dressing experiment after collected 50kg samples on the scene. After tested the ore properties of sample ore, Yantai Group lab concluded that the main metal minerals of the project were copper, lead, zinc, and a certain
Copper-zinc polymetallic sulfide ore of similar floatability Advantages . Process technology matures easy to control the flotation conditions, combine the strengths of both differential flotation and bulk flotation, widely used in many plants.
Extraction of a Low Grade Zinc Ore using Gravity and Froth Flotation . Lead Zinc sulphide ore deposit, and reported that it . are lead and zinc, and that flotation followed by .. was fed into Denver froth flotation cell, with 1000mls. Contact US PDF Zinc Recovery From Lead Zinc Copper Complex Ores by . Aug 1, 2018 .
Separation may be a simple bulk float i.e.pyritic gold ores, some copper ore with negligible pyrite or as is the case for polymetallic ores, a complex three stage sequential separation ie copper, lead, zinc.
Copper-Lead Separation. Dereagent first, then differential flotation process. Floats copper and depresses lead, or floats lead and depresses copper. Floats copper and depresses lead Widely used in secondary copper ore, Cu2 ions are dissolved too much and bot easy to be inhibited.
Figure 4.6 Pieces of crushed bulk feed ore. 26 4.2 Flotation Results of Copper, Zinc, and Arsenic 4.2.1 Copper Flotation Fig. 4.7 shows copper flotation. The colour of the froth during copper flotation was observed to be greyish. It appeared that zinc could have floated with copper during the bulk flotation.
Shandong 500td Copper Lead and Zinc Ore Bulk Flotation Project. Ore Property Shandong client commissioned Xinhai Mine Research Institute to conduct ore dressing experiment after collected 50kg samples on the scene. After tested the ore properties of sample ore, Xinhai lab concluded that the main metal minerals of the project were copper, lead, zinc, and a certain
Shandong 500td Copper Lead and Zinc Ore Bulk Flotation Project. Ore Property Shandong client commissioned Xinhai Mine Research Institute to conduct ore dressing experiment after collecting 50kg samples on the scene. After tested the ore properties of sample ore, Xinhai lab concluded that the main metal minerals of this project were copper, lead, zinc, and a certain
Typical lead-copper-zinc sulphide minerals were found hard to be separated selectively by froth flotation in the plant practice operation due to part of sphalerite was progressively entrapped into lead-copper bulk flotation. A series of de-zincing on lead-copper flotation tests has been conducted in the laboratory to reduce unwanted zinc content.
Show full abstract flotation tests, depression was achieved using non-toxic reagents and consequently individual copper, lead and zinc concentrates assaying 31.68 Cu, 67.69 Pb, 49.79 Zn were ...
As a result of sulfide flotation a bulk lead-zinc concentrate with 43.02 Zn and 12.23 Pb was produced. On the other hand the highest lead content that could be obtained by oxide flotation
In general, the most difficulty of the polymetallic sulfide ores separation is the separation among several kinds of ores, especially those low-graded ores with complex embedded features. Therefore, its a significant step for separating lead-zinc, copper-zinc, copper-lead to choose right flotation reagents.
and commissioned in November 2008. During the initial stages of sulphide operation, high copper Cu-low zinc Zn ore was fed to the plant. Marketable copper concentrate at 91-95 recovery was produced utilizing a high-pH bulk sulphide rougher flotation and 2 cleaning stages. Because of increased levels of Zn
At the end of whole flotation process, saleable lead, copper and zinc selective concentrates having 68.05 Pb, 23.15 Cu and 45.80 Zn content were obtained with
15.4.2 General overview of the reagents used in the copper-lead bulk and zinc flotation ..... 381 15.4.3 Copper-lead separation methods ..... 383 15.5 Bulk Copper-Lead-Zinc Flotation Method and Separation of Copper,
The polymetallic separation flowsheet of copperlead bulk flotation copperlead separation - priority flotation zinc and pyrite from the bulk flotation tailings was used. The concentrate indexes of the grade of copper, lead, and zinc were 20.87, 49.91, and 60.10, respectively, and the recoveries were 75.59, 91.62, and 74.07.
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