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Use of sulfide sodium in lead zinc flotation powerpoint
Report on flotation pilot plant design and arrangement
Flotation is currently in use for many diverse applications, with a few examples being: Separating sulfide minerals from silica gangue (and from other sulfide minerals); Separating potassium chloride (sylvite) from sodium chloride
Sulphidization flotation for recovery of lead and zinc
The first step in oxide minerals and lead-zinc carbonate flotation is sulfidization of their surfaces with chemical agents such as sodium sulfide. This method is appropriate for lead carbonate
The Complete Collection of Copper Beneficiation Reagents
The combination of T-16 + zinc sulfate inhibitor can inhibit zinc, activate copper and lead, and eliminate the effect of slurry foam viscosity, which can effectively realize the flotation separation of copper-lead and zinc. Activators It can enhance the action of minerals and collectors, so that the refractory minerals are activated and floated.
3 Major Roles of Sodium Sulfide in Mineral Processing
Oct 29, 2020· Sodium Sulfide. After the white lead ore reacts with sodium sulfide, the surface color changes from white to darker. After the action of malachite and sodium sulfide, the surface color changes from green to dark black, indicating that after vulcanization, the surface of these two minerals has formed a sulfide film different from the mineral. 3.
Role of Sodium Sulfide - Copper Lead & Zinc Ore Flotation
Jul 17, 2018· 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 ores in which the gangue is usually basic.
The collecting performance and interaction mechanism of
Flotation Experimental 2.1. Reagents and minerals Hand-picked chalcopyrite and pyrite were obtained from Tonglushan Copper Mine of Hubei Province and Yunfu Mine of Guangdong Province, China, respectively. Galena and spha-lerite ores were obtained from Huangshaping Leadzinc Mine of Hunan Province. Each kind of pure mineral was porcelain ground
Zinc sulfide Manufacturers & Suppliers, China zinc sulfide
zinc sulfide manufacturer/supplier, China zinc sulfide manufacturer & factory list, find qualified Chinese zinc sulfide manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.
US2150114A - Differential flotation of lead-zinc ores
US2150114A US173112A US17311237A US2150114A US 2150114 A US2150114 A US 2150114A US 173112 A US173112 A US 173112A US 17311237 A US17311237 A US 17311237A US 2150114 A US2150114 A US 2150114A Authority US United States Prior art keywords lead zinc concentrate lbs ton Prior art date 1937-11-06 Legal status (The legal status is an assumption and is not a legal conclusion.
(PDF) Effect of flotation reagents in zinc recovery from
A sulfidization-flotation method has been used on a laboratory scale to investigate the effect of various reagents such as sodium sulfide as sulfidizing agent, primary amine as collector,
Flotation experiment research on a polymetallic sulfide ore of
The polymetallic sulfide ore of copper, lead, and zinc is widely found all over the world and is often associated with rare metals such as gold and silver. The economic value of the comprehensive recycling of this of ore is large. The polymetallic sulfide ores of copper, lead, and zinc are usually processed via flotation, and the
The enrichment method polymetallic sulfide gold ores and
The closest in technical essence and the achieved result to the present invention is a method of enrichment of sulphide gold-bearing polymetallic ores and products, including collective sulfide flotation in the presence of xanthate, sodium and blowing agent to produce collective concentrate and tailings and subsequent selective is the method of
FROTH FLOTATION : RECENT TRENDS Flotation of Sulphide
FROTH FLOTATION : RECENT TRENDS @IIME, JAMSHEDPUR, 1998; pp. 18-41 Flotation of Sulphide Ores - HZL Experience V.P. KOHAD Hindustan Zinc Ltd., Zawar Mines, Udaipur - 313 901 ABSTRACT Flotation process, patented in the year 1906, was originally developed for mineral industry to recover values from high grade tailings of gravity separation plants.
Flotation - SlideShare
Aug 14, 2017· Typical are sodium to depress pyrite, zinc sulphate to depress ZnS,lime to depress pyrite and lignin sulphonates to depress graphite. 24. Flotation Equipment Various type of flotation machine designs can be classified into different categories on the methods used for the generation and introduction of air bubbles into the equipment .
Method of flotation of sulfide copper-zinc ores
(57) Abstract: Usage: mineral processing, in particular flotation of copper-zinc sulphide ores and products. Method of flotation of sulfide copper-zinc ores includes the conditioning of the pulp in a calcareous environment with reagents-regulators sulfur, sodium, and zinc sulfate, the introduction of collector and Frother and subsequent separation with separation of copper minerals in the
(PDF) Evaluation of lead zinc ore tailings by flotation
Then, if present, the zinc sulfide is floated, followed by the flotation of lead minerals. Either sodium sulfide or sodium hydrosulfide is used as a sulfidizing ag ent (Önal et al., 200 4). AERO
Mineral Concentration Plant and Milling Minera San
The concentration of zinc, lead and silver in the mineralized rock extracted from the Jayula and Tesorera pits in the San Cristóbal mine is very low; it is therefore necessary to have the material undergo a process designed to increase the content of these elements and thus obtain products with a commercial value. In this sense, the concentration plant was designed to obtain two enriched
1 Froth Flotation Fundamental Principles
1 Froth Flotation Fundamental Principles Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a mineral/water slurry. The particles with attached air
Flotation Conditioners of Oxidized Zinc and Lead Ore
The above four reagents are commonly used conditioners for the flotation of oxidized lead and zinc ore. After being sulfurized, and then adjusted according to the nature of the ore, the oxidized lead and zinc ore can be collected according to the collecting principle of sulfide ore with collectors such as xanthate.
The Depression of Sphalerite during Carbon Pre-flotation
of sphalerite as composite particles during lead flotation, and (c) the pulp pH was best maintained at natural pH during pre-flotation and at an elevated alkaline pH (pH 9.5) during lead flotation for optimal selectivity. In terms of depressants it was found that zinc sulfate specifically depressed sphalerite during lead flotation.
Surface chemistry investigation of froth flotation
Jan 01, 2021· As shown in Fig. 1, before flotation, 800 g lead-zinc sulfide ore, 500 g water, depressant (8000 g/t lime) and collectors (50 g/t sodium diethyldithiocarbamate and 50 g/t sodium butyl xanthate) were added to a ball mill and ground for 5.5 min.Thereafter, the pulp was transferred to an XFD-63 flotation cell (self-aeration) whose volume for flotation was 1.5 L with an impeller speed of 1800 rpm.
Role of sodium sulfide in the flotation of oxidized copper
This paper reviews uses of sodium sulfide in the flotation of oxide minerals of copper, lead, and zinc. The activation and depression effects of sodium sulfide are of particular importance because of their applications with oxidized lead and copper ores. In spite of its industrial importance, the nature of the heterogeneous reactions between sulfide ions in solution and the surface of oxidized
Effect and mechanism of potassium-permanganate
Mar 16, 2020· Zinc is an important raw material and nonferrous metal that has an extremely important role in the development of national economies. For this reason, countries around the world continue to strengthen their research efforts on the development and utilization of zinc resources. Sphalerite is an important source of zinc metal, which often coexists with chalcopyrite, galena, and pyrite in nature.
Mining Chemicals - Chemicals Used in Mining - Drilling
Nov 01, 2018· Sodium Sulphide (Na2S) /Sodium Hydrosulphide (NaHS): Commonly used prior to collector addition for the activation of Cu, Pb, and Zn minerals. The choice of whether to use Na2S or NaHS depends on the pH required in flotation, as Na2S is more alkaline and also, whichever works best (test to verify). Typically made up to 15-25 % solution strength.
Brief Introduction of Dithiophosphate CNFREE
It is an effective collector for copper, lead and silver sulfide ore and activated zinc sulfide ore. It is commonly used in the priority flotation separation of lead ore and zinc ore. In the alkaline medium, the dithiophosphate 25 has weak collecting effect to pyrite and other
Lead and Zinc - Energy
Lead and Zinc Lead and zinc ores are usually found together with gold and silver. A lead-zinc ore may also contain lead sulfide, zinc sulfide, iron sulfide, iron carbonate, and quartz. When zinc and lead sulfides are present in profitable amounts they are regarded as ore minerals. The remaining rock and minerals are called gangue.
Metallic sulphide and sodium carbonate interacting
zinc) from sulfide ore by co-firing with a carbonate or bicarbonate of alkali metals, eg, with sodium car-bonate added to mix material for obtaining sulphati - zation reaction. For enriching ore containing copper, nickel, cobalt or zinc sulfide there is used a flotation method. The resulting concentrate mixed with car-
Lead Zinc Sulfide Separation by Sequential Flotation
Mar 19, 2017· The Unit Flotation Cell will efficiently handle minus ¼ ball mill discharge and recover much of the lead as soon as it is free and reduced to flotation size. Often up to 70-80% of the lead can be recovered at this point in a high grade product which filters rapidly and is generally very low in zinc
Selective separation of galena and sphalerite from pyrite
pre-flotation, which is a flotation stage prior to the galena flotation, is employed to remove part of the organic carbon. Following the pre-flotation stage, lead and zinc sulfides are floated in separate circuits and during the flotation process pyrite is floated to the concentrates.
Extraction purification lead zinc titanium chromium
5a. The Extraction of Lead. Because its position in the reactivity series of metals, lead can be extracted using carbon (coke) in a smelting furnace.Because lead is below carbon, that is less reactive than carbon, lead can be displaced by carbon from lead oxides or lead sulfides in a sort of displacement reaction. The principal ore of lead is galena, chemical formula PbS lead sulphide (lead(II
Zinc sulfate flotation test Article about zinc sulfate
These ores are concentrated by selective flotation, yielding zinc concentrates containing 5060 percent zinc, as well as lead, copper, and sometimes pyrite concentrates. Zinc concentrates are roasted in a fluidized-bed furnace, in the course of which zinc sulfide is converted into zinc oxide, ZnO; the sulfur dioxide, SO 2 , formed in this
Common Questions About Froth Flotation Process Technology
The combination of CMC, sodium sulfite and sodium silicate is used as the inhibitor of lead. A certain copper-lead-zinc sulfide ore was treated with copper-lead-mixed floatation, but adiene and black powder as mixed collector, zinc sulfate was used to inhibit sphalerite, activated carbon and sodium sulfide were used to combine in the stage of
Flotation Behavior of Complex Sulfide Ores in the Presence
As for zinc, Figure 10 shows that, at 50 g/ton of chitosan, the recovery of zinc in the froth increased by 40% compared to NaCN at its optimum dosage which is undesirable in the differential flotation of sulfide minerals where lead and copper sulfides are floated in the first flotation stages while sphalerite is depressed. Results also revealed
What is the use of sodium sulfide?-Company news-News
The word sodium sulfide seems to be far away from us, but it is widely used in industry and has many advantages, so let me introduce sodium sulfide and its use.. Here are the content list. What is sodium sulfide. The use of sodium sulfide. What is sodium sulfide. Sodium sulfide (NA 2 S) is a yellow or brick-red crystalline solid. It occurs naturally under different hydration, the most common
US4214710A - Froth flotation of zinc sulfide - Google Patents
US4214710A US05/953,140 US95314078A US4214710A US 4214710 A US4214710 A US 4214710A US 95314078 A US95314078 A US 95314078A US 4214710 A US4214710 A US 4214710A Authority US United States Prior art keywords zinc sulfide depressant froth flotation flotation collector Prior art date 1978-10-20 Legal status (The legal status is an assumption and is not a legal conclusion.
Activation of Sphalerite by Ammoniacal Copper Solution in
The activation of sphalerite particles by ammoniacal copper solution (ACS) was investigated in this study. This microflotation study was conducted on a single sphalerite mineral with the particles size of 38 μ m to 75 μ m. Results showed that ACS has somewhat better activation effect than copper sulphate (a traditional activator) with sodium isobutyl xanthate as the collector.
Lead-Zinc ores - Danafloat
The established lead-zinc ore flotation processing scheme is to add zinc sulphate (ZnSO4) to the grind to control metal ion activation (sphalerite depression). Often metabisulphide or other sulphidation chemicals are added with the zinc sulphate for iron sulphide mineral depression.
Sodium sulfide - Wikipedia
Sodium sulfide is the chemical compound with the formula Na 2 S, or more commonly its hydrate Na 2 S·9H 2 O.Both the anhydrous and the hydrated salts are colorless solids. They are water-soluble, giving strongly alkaline solutions. When exposed to moist air, Na 2 S and its hydrates emit hydrogen sulfide, which smells like rotten eggs.Some commercial samples are specified as Na 2 S·xH 2 O
Experiment study on recovering lead and zinc from a
The main usful elements in a flotation tailings in Inner Mongolia were lead, zinc and silver, and the main lead and zinc minerals were oxide minerals. The content of sulfide minerals of lead and zinc especially sulfide mineral of lead were small,so It was difficult to get concentrate of sulfide mineral of lead.The flotation tailings was used as the
Dispersion effect on a leadzinc sulphide ore flotation
Despite enhancing the lead recovery, the reagents caused unacceptable zinc losses in the lead concentrate.Lead flotation either at natural pH or pH 9.8 modified with sodium carbonate or lime presented similar results.A technological consequence of the low sodium carbonate dispersing ability was the use of lime substituting for the more
Handbook of Flotation Reagents - MESA
14 Flotation of Lead-Zinc Ores .. 323 14.1 Introduction .. 323 14.2 General Geological and Mineralogical Features of Lead-Zinc Ores .. 323 14.3 Flotation Properties of Lead-Zinc Ores and Classification of the Ore
Silver Lead Zinc Ore Processing Method using Flotation
Mar 19, 2017· Silver, Lead & Zinc Flotation Circuit #2. The recovery of silver minerals occurring in a lead-zinc sulfide ore is efficiently accomplished using the above flowsheet. The process consists of selective flotation to produce a mixed silver-lead concentrate for maximum smelter return and a separate zinc concentrate.
Feasibility Study of Differential Flotation of CuPbZn
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 conducted to investigate the effect of
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