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Lead is recovered from lead sulfide concentrates or mixed lead-zinc concentrates containing iron sulfide by forming a slurry of such concentrates in an aqueous medium containing ammonium sulfate and free ammonia, and introducing such slurry into a closed reaction vessel at a pressure not exceeding 30 psig. Oxygen also is introduced into such vessel to establish therein a partial oxygen ...
Alibaba offers 100 lead sulphide products. About 9% of these are sulfide, 6% are other metals & metal products, and 6% are mineral separator. A wide variety of lead sulphide options are available to you, such as free samples.
Flotation experiment research on a polymetallic sulfide ore of Cu, Pb, and Zn in Shanxi province ... flotation – copper/lead separation - priority flotation zinc and pyrite from the bulk flotation tailings was used. The ... 1000g/t of Zinc sulfate, 500 g/t of sodium sulfate, 40 g/t of Z-200, 40 g/t of ...
Lead/Zinc Separation Process and Circuit Flowsheet. Extensive batch and pilot plant testing and actual plant operating experience has established the above flowsheet as typical for the average zinc sulfide ore containing galena and usually pyrite in a lime or siliceous gangue.
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 ...
use of sulfide sodium in lead zinc flotation powerpoint ... PPT – 2010 Flotation PowerPoint presentation | free to ... View by Category Presentations Photo Slideshows Presentations (free-to-view) Presentations (pay-to-view) Products 3D Characters for PPT 3D ... Customer Service.
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.
Flotation is universally used to concentrate minerals from low-grade ores into smaller mass. For sulfide base-metal ores, such as the lead-zinc sulfide or copper-zinc sulfide ores, xanthates are used as flotation collectors. In such ores, lead (or copper) minerals are floated first and zinc minerals are .
&ER& United States Environmental Protection Agency Industrial Environmental Research Laboratory Cincinnati OH 45268 Research and Development EPA-600/S2-81-157 Oct. 1981 Project Summary Alternatives for Sodium Cyanide for Flotation Control E. J. Mezey, D. W. Neuendorf, G. Ray Smithson, Jr., and James F. Shea Cyanide has long been looked upon as the classical poison and has been .
Sulphidization flotation for recovery of lead and zinc from oxide-sulfide ores Article in Transactions of Nonferrous Metals Society of China 15(5):1138-1144 · October 2005 with 93 Reads
Wan Hong-min 10 pairs ShaanxiXinRiver lead and zinc in the ore concentrator stockpiled for use of sodium sulfide removal drug pretreatment process and then to get the lead flotation of lead concentrate and zinc 63,123 55,189 lead and zinc concentrates zinc recoveries were up to 60,156 and 85,155 full advantage of the secondary mineral resources.
Where the oxide lead minerals are present in appreciable amounts, it is the usual practice to float the lead sulfides first. Then, if present, the zinc sulfide is floated, followed by flotation of the lead minerals. Either sodium sulfide or sodium hydrosulfide is used as a sulfidizing agent.
Aug 15, 2013· Wan Hong-min 10 pairs Shaanxi Xin River lead and zinc in the ore concentrator stockpiled for use of sodium sulfide removal drug pretreatment process and then to get the lead flotation of lead concentrate and zinc 63,123 55,189 lead and zinc concentrates zinc recoveries were up to 60,156 and 85,155 full advantage of the secondary mineral ...
Sodium silicate is employed as a deflocculator of gangue slime in cases where the latter is too floatable to be kept out of the concentrate by any other means. Its application is confined mainly to the flotation of lead and zinc ores and tailings.
[Show full abstract] depression and cleaning of mineral surfaces by sodium sulfide for selective copper-zinc flotation. The ores have high recoverable values; 70 and 95 /t, for the 13 degree N and ...
In the flotation of oxidized zinc using sodium sulfide, and flotation with a cationic collector, using Armac C or dodecylamine, produced best results. Using an amine emulsion with elevated additions of fuel oil and pine oil emulsion could be beneficial. It is proper .
Abstract. 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.
PDF | The role of sodium sulphide in amine flotation of the silicate zinc minerals willemite and hemimorphite is discussed. Data from the literature are compared with experimental results obtained ...
[Show full abstract] depression and cleaning of mineral surfaces by sodium sulfide for selective copper-zinc flotation. The ores have high recoverable values; 70 and 95 /t, for the 13 degree N and ...
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 ores in ...
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 a frother and ...
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
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 .
For example, in the flotation of lead-zinc sulfide ore, it is necessary to separate lead, zinc and sulfur. At this time, flotation reagents are used to change the nature of one of the minerals and separate them one by one. In the case of lead-zinc separation, the "zinc-inhibited and lead-collected" program is .
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