sintering of lead sulphide ores

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Secondary Lead Smelting Used Lead Smelting Plant Smelting

In the Pyrometallurgical process ore concentrate containing Lead Zinc or both is fed in some cases after sintering into a primary smelter. Lead concentrations can be 50–70% and the sulfur content of sulfide ores is in the range of 15–20%.

Treatment of complex lead copper - EPrints

Viswwanathan et a .: Treatment of complex lead. copper and :ine sulfides SULFIDE ORE S02TO ACID PLANT ERINE LEACH PRECIPITATION OR ELECTROLYSIS SULFATE ROASTING COPPER FC E ME NTATION SOLUTION PURIFICATION LEAD PRODUCT SINTERING rFePRODUCT FZINC ELECTROLYSIS PRECIPITATION SPENT SOLUTION I Process flow sheet for treat-ment of complex sulphide ore

Principles of Extractive Metallurgy

Extraction of metals from sulphide ores Examples: CuNiZnPb Extraction of lead Lead ore consists of PbS galena along with Sphalerite ZnS Pyrite FeS2 Cu2S and some precious metals like gold and silver as gangue. First of all lead ore 3-10% lead is concentrated to 60-70% by froth floation

Oxidized zone minerals Wat on Earth University of Waterloo

The oxidized zone and zone of enrichment may contain profitable mineralization. The original sulphide bearing rock may not have contained sufficient ore to pay for deep mining pumping of water and treatment of the ore. Other sulphide minerals such as sphalerite zinc sulphide and galena lead sulphide are broken down in the oxidized zone.

US3649244A - Method of sintering of mineral sulphides

This invention relates to the sintering of sulphide minerals e.g. lead sulphide as a bed incorporating the same is conveyed substantially horizontally e.g. in a sintering machine of the Dwight Lloyd-type to a discharge position at which the sinter is delivered to sinter breaking means.

Lead and Zinc Sintering IntechOpen

1.2. Why sintering. Lead and zin metals are produced in blast furnace. In a blast furnace ore coke and flux are continuously supplied through the top of the furnace while air sometimes with oxygen enrichment is blown into the lower section of the furnace so that the chemical reactions take place throughout the furnace as the material moves downward.

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 1 . The polymetallic sulfide ores of copper lead and zinc are usually processed via flotation and the concentrates of

OXIDATION OF LEAD SULPHIDE

The stability of lead sulphate at high temperature 900 C has been investigated. Sintering behaviour of the products in relation to their incomplete desulphurization was examined. Oxidation studies on lead sulphide were extended to lead-zinc ores with respect to the effect of moisture content and bentonite on sintering.

PDF Control Optimization of a Lead Sintering Process

Because oxidation reaction of lead sulfide Ore lead co To deal with the problem of high cost and low accuracy existed in conventional meth-ods for the lead-zinc sintering blending a

Lead Blast Furnace Smelting-Lead- - Metalcess

In terms of the appli ion of blast furnace in lead metallurgy lead oxide ore/concentrate or lead paste from spent lead acid battery is directly charged into the blast furnace while lead sulfide or lead-zinc sulfide ore/concentrate needs to be sintered and desulfurized before charging into blast furnace.

Metallic sulphide and sodium carbonate interacting processes

Lead- sulfide concentrate was being treat-ed in sintering machines with adding soda ash and coal to a mix material. The agglomerate was melt-ed in a shaft furnace without adding fluxes that resulted in obtaining crude lead and melted slag. Also they offered a method of direct lead concen-trate melting in ore-smelting furnaces without ag-

WAC 296-17A-1801:

Applies to establishments primarily engaged in the smelting sintering or refining of lead including the manufacturing of calcium carbide. The lead ore most commonly mined is galena which is the sulfide of lead. The ore is mixed with other metalliferous minerals such as sphalerite copper pyrites and iron pyrites.

Synthesis Sintering Behaviour and Mechanical Properties of

the synthesis of lead-based powder during milling of a lead sulphide powder could be considered. In fact the predominant reaction is the reduction of the lead sulphide in presence of iron issued from the wearing of steel balls: PbS s Fe s o Pb s FeS s 1 The conversion rate can reach 84% after an hour of milling.

British Library EThOS: Oxidation of lead sulphide

The stability of lead sulphate at high temperature 900 C has been investigated. Sintering behaviour of the products in relation to their incomplete desulphurization was examined. Oxidation studies on lead sulphide were extended to lead-zinc ores with respect to the effect of moisture content and bentonite on sintering.

12.6 Primary Lead Smelting

12.6 Primary Lead Smelting 12.6.1 General15 Lead is found naturally as a sulfide ore containing small amounts of copper iron zinc precious metals and other trace elements. The lead in this ore typically after being concentrated at or near the mine see Section 12.18 is processed into metallurgical lead at 4 facilities in the U. S.

Lead

Lead ores are such that these two operations are best combined into one simultaneous roasting-sintering process that produces a sinter ready for the lead blast furnace. The second stage of smelting can take place in an ore hearth or a larger blast furnace. The sintered ore is charged with coke limestone flux and other additives depending on

The refining of lead by the Betts process

Lead sulphide concentrate Bulli Lead bull ion production Refining of bullion 99.99 Pb Sulphur dioxide Byproduct metals Fig. 1. Flowsheet for lead extraction from sulphidic concentrates. where reducing coal-air mixtures are injected through tuyeres to lower its lead oxide content.

Metallurgy of Lead: Ores Properties Extraction

Metallurgy of Lead . Ores. 1. Galena PbS . 2. Cerrusite PbCO 3 . 3. Anglesite PbSO 4 . 4. Lead ochre PbO. Extraction: Lead is mainly extracted from the sulphide ore galena. Galena contains lead sulphide and small quantities of silver. 1. Concentration: The ore is concentrated by froth floatation process. 2.

Ore Sintering - an overview ScienceDirect Topics

A summary of the emission factors and annual emissions amounts of XPAHs from several major industrial sectors i.e. cement kiln co-processing solid waste industry iron ore sintering industry secondary aluminum and secondary lead smelting industries of China is shown in Fig. 2 76676 .

manufacturing of lead from its ore

lead and zinc - energy.govplus lead-producing mines in alaska idaho and montana yielded most of the u.s. . lead and zinc ore is nearly always mined below the surface of the ground.lead processing . britannicalead processing preparation of the ore for use in various products. . by other investigators led to commercial production of lead-acid storage batteries by 1889.production import

POLYMETALLIC VEIN AND REPLACEMENT DEPOSITS MODELS 19a and

Ore is present in massive lenses mantos pipes chimneys and veins of iron lead zi nc and copper sulfide minerals that are hosted by and replace limestone dolomite or other sedimentary rocks; most massive ore contains >50 percent sulfide minerals. A given district or mine may contain a single massive orebody or a series of orebodies

Optimising Moisture Control for Zinc – Lead Sintering - AusIMM

Sintering of lead-zinc concentrates is practised by Sulphide Corporation to provide both desulfurised lump sinter feed for simultaneous reduction to zinc and lead in the Imperial Smelting Process blast furnace and sulfur dioxide gas for sulfuric acid manufacture. Moisture control of feed mixes is of paramount importance in the sintering operation and improvements in this

ROASTING OF SULFIDE MINERALS - Wiley Online Library

ROASTING OF SULFIDE MINERALS In addition to common metals like copper lead zinc and nickel a number of other metals such as antimony bismuth cadmium cobalt mercury and molybdenum occur as sulfide minerals. Sulfides are not reduced with the most widely used redu-cing agents carbon and hydrogen because the free energy change for the

LEAD ZINC EXTRACTION PROCESSES - EPrints

are used for production of lead zinc depending on the type of material used as a charge. In the pyrometallurgical process ore concentrate containing lead zinc or both is fed in some cases after sintering into a primary smelter. Lead concentrations can be 50-70% and the sulfur content of sulfidic ores is in the range of 15-20%.

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