Copper Lead Concentrate Separation
The separation of copper-bearing from zinc sulphides is effected by two-stage selective flotation, the zinc minerals being depressed and the copper minerals brought up in the first stage with reagents similar to those required in the lead flotation section of a lead-zinc plant; the zinc sulphides are floated in the second stage in the ordinary way. The ores treated by this process are mainly those containing …
Lead Zinc Separation by Flotation - Froth Flotation ...
Some of the metals that can do the stone are copper and lead. At a pH between 8-9 lead can activate sphalerite to cause it flotation. So the reason is during the flotation of the two there may be lead re dissolution from galena which may activate sphalerite to cause it flotation. It may best if you are doing bulk flotation of the two.
Lead Zinc Sulfide Separation by Sequential Flotation
Lead Zinc Sulfide Separation by Sequential Flotation In the majority of the zinc operations, sphalerite (ZnS) is associated with galena and often sulfides of iron and copper.
separation by flotation of copper lead zinc sulphides
DE-ZINCING OF LEAD-COPPER SULPHIDE MINERALS . Typical lead-copper-zinc sulphide minerals were found hard to be separated selectively by froth flotation in the plant pract operation due to part of sphalerite was progressively entrapped into lead-copper bulk flotation.
Flotation separation of copper sulphides from arsenic ...
The copper flotation section produces a copper concentrate through two stages of flotation as shown in Fig. 1. Flotation reagents are added through the conditioning tank, TKF2. Cytec’s Aerofloat, a dithiophosphate, is used as a collector and Interfroth 63 is added as a frother. Sodium meta-bi-sulphite (SMBS) is added to control lead and zinc levels in copper concentrate. All reagents are added to …
A Novel Technology for Separation Copper, Lead and Zinc in ...
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 sulfide...
How to Process Copper Lead Zinc Ore with Gold and Silver ...
The Lead Zinc Copper Flotation and Separation Circuit Every effort is made to recover the minerals as soon as free. Over-grinding causes slime losses which are both unnecessary and costly. The flowsheet is designed for a compact mill of a size that provides economical treatment at this tonnage.
Flotation of Copper-Lead-Zinc Ores
In the flotation of copper–zinc massive sulfide ores, the flotation properties of copper and zinc are determined by the nature and composition of the ore. Selectivity between chalcopyrite and...
pH Ranges for Sequential Cu Pb Zn Flotation | Separation
Iron (pyrite) Zinc. Lead. Copper (Chalcopyrite and others) As Lime is added and rises pH towards 12, depressed again is Iron (pyrite), followed by Zinc. ** Activated Zinc, in the Cu and/or Pb Circuit, will float like Copper.
Copper-Lead-Zinc ores - danafloat.com
The zinc reporting to the bulk flotation tails feeds the zinc circuit which is operated as previously described in the lead-zinc flotation section. Which flotation scheme used in the differential copper-lead bulk concentrate separation is generally and often dependent upon which mineral has the greater mass in the bulk concentrate.
Flotation experiment research on a polymetallic sulfide ore of
The polymetallic separation flowsheet of copper/lead bulk flotation – copper/lead 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%.
DE-ZINCING OF LEAD-COPPER SULPHIDE MINERALS …
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.
Froth flotation - Wikipedia
As an example, sodium ethyl xanthate may be added as a collector in the selective flotation of galena (lead sulfide) to separate it from sphalerite (zinc sulfide). This slurry (more properly called the pulp ) of hydrophobic particles and hydrophilic particles is then introduced to tanks known as flotation cells that are aerated to produce bubbles.
Mining Industry | Copper Sulfide Ore and Flotation Process ...
Jul 09, 2019 · (6) Copper-cobalt ore Copper mineral and cobalt-containing pyrite and other cobalt minerals. (7) Arsenic sulfide copper ore The ore has a high content of arsenic, which is mainly in the form of arsenopyrite. Flotation process to solve the problem of copper and arsenic separation, reduce the arsenic content in the copper concentrate as much as ...
Lead-Zinc ores
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.
Introduction to Mineral Processing - Chevron Phillips Chemical
The main difference in lead/zinc flotation is that zinc is usually depressed while lead (and copper) is floated. The tailing from the lead flotation circuit is the feed to the zinc circuit. The ability to selectively float the separate minerals depends on the ore, the chemicals, and other factors.
Features and Flotation of Complex Cu-Pb-Zn Sulphides ...
Abstract. Problems arising during flotation of complex Cu-Pb-Zn sulphide ores are in general of geological origin. The features of these ores are reviewed, stressing that mineralogical studies extending to process mineralogy are prerequisite for a consistent flotation process.
Polysaccharides in flotation of sulphides. Part II. Copper ...
INTRODUCTION Differential flotation of copper/lead sulphide ores is usually carried out with the use of cyanide to depress chalcopyrite. This method is common when the ratio of Cu to Pb is greater than unity.