sulfur floatation process


Why is the froth flotation method only used for sulphide ...

Feb 17, 2018· This method is based on the principle of the difference in the wetting properties of the ore and the gangue particles with the water and oil. This method is used for that metals whose ore gets preferably wetted by the oil and the gangue by the wat... Froth flotation is a good example of an engineering "system", in that the various important ... keep process changes from producing the expected effects (Klimpel, 1995). This makes it ... elemental sulfur. Coal is a good example of a material that is typically naturally hydrophobic,

Flotation Seperation Of Sulfur From Sulfide

Flotation Seperation Of Sulfur From Sulfide ... With more than 2,500 case sites, the scientific management method, the refined manufacturing process, and the innovative manufacturing concept,have rapidly grown into the mining machinery production and export bases in China even the world. Rock Crusher And Aggregate Equipment ... Sulfur removal from tungsten concentrates is achieved through reverse flotation. • The pulp pH of reverse−flotation desulfurization process should be lower than 6. • The sulfur content decreases from 4.53% to 1.77% after desulfurization treatment. • The average value of sulfur removal efficiency in the industrial test was 57.19%.

Application of Froth Flotation Technique to Reduce Sulfur ...

Lakhra coal could be used for various purposes, but presence of sulfur contents restricts its use for industrial applications. Pyrite has the major component share as inorganic sulfur in the coal. The research was conducted to study the application of the physical method for coal cleaning process using froth flotation. The flotation tailing (froth product) was collected for 3 min. In the study, the effect of different collectors, flotation pH values, and mixed collector rates were investigated. Figure 1. Flow sheet of flotation tests. The concentrates and tailings from flotation after the filtering and …

Copper sulfide ore Forth flotation process introduction ...

Copper sulfide ore Forth flotation process introduction. Copper sulfide is a compound of copper and sulfur, chemical formula CuS, exist in the deep blue covellite forms in nature. It is a medium conductivity conductor. Hydrogen sulfide gas inlet into copper salt solution to … Sulfur dioxide is converted into sulfur trioxide, and the process gas is sent to the first absorption step where the sulfur trioxide is removed and sulfuric acid is formed. After further conversion, the gas is routed to the stack via the final absorber.

Flotation Froth - an overview | ScienceDirect Topics

Froth flotation is a process that selectively separates materials based upon whether they are water repelling (hydrophobic) or have an affinity for water (hydrophilic). Importantly, the word flotation is also used in the literature to describe the process in density separation in which lighter microplastics float to the surface of a salt solution. Aug 13, 1985· Unfloated sulfur particles from the flotation tank continue to recirculate through the process until they either settle out in surge tanks or are eventually removed in the flotation tank. In conventional Stretford processes, much of the sulfur (and frequently, most of the sulfur) which enters the oxidizer (flotation tank) is not floated.

Flotation Test of High Sulfur Copper Ore in the Northwest ...

The experimental ore belongs to a kind of typical high sulfur ore,which makes it to be a refractory ore.The copper in the ore has a relative high grade which comprehensively reaches 3.78%,with the chalcopyrite occurs the main form.After a serious of condition tests,a final flowsheet with once roughing,twice cleaning and twice scavenger is determined.Through a closed-circuit,it could obtain ... Zinc processing - Zinc processing - Ores: Zinc ores are widely distributed throughout the world, although more than 40 percent of the world's output originates in North America and Australia. The common zinc-containing minerals are the zinc sulfide known as zinc blende or sphalerite (ZnS), a ferrous form of zinc blende known as marmatite [(ZnFe)S], and a zinc carbonate known as calamine or ...

sulfur flotation beneficiation

The main gold beneficiation equipment Production capacity Of Floatation Processing Plant: silver, nickel, zinc, antimony, lead etc, kaolin, phosphorus, sulfur . Inquire Now; Froth flotation Wikipedia. Froth flotation is a process for selectively industrial size commercial flotation process for mineral beneficiation at the related sulfurbased As an important indicator of flotation performance, froth texture is believed to be related to operational condition in sulphur flotation process. A novel fault detection method based on froth texture unit distribution (TUD) is proposed to recognize the fault condition of sulphur flotation in real time. The froth texture unit number is calculated based on texture spectrum, and the probability ...

CN103157558A - Beneficiation method of recovering sulfur ...

The invention belongs to the field of mineral processing, relates to a beneficiation method, and particularly relates to a method of sorting copper sulfide ore flotation tailings. The method comprises the following steps: A, the tailings with copper and sulfur separated are dewatered through a thickener, wherein the content of the sulfur in the tailings is more than 20%, and the concentration ... Vo1. 2, Characterization and Flotation of Sulfur from Chalcopyrite Concentrate Leaching 3 can serve as the feed for the above-mentioned or similar processes to produce selenium- and tellurium-free sulfur product. Experimental Work Materials. The chalcopyrite …

Environmental Impact of Flotation Processing

Environmental Impact of Flotation Processing . Valuable minerals in an ore can be separated from each other, and from worthless minerals, by the froth flotation process. The need for a process to extract ore arose from major sulfide mineralization after the oxide ores had been depleted. Sulfur Production. Crude sulfur is produced from the Frasch process or recovered from "sour" natural gas or petroleum. Although termed "crude", this sulfur possesses a minimum purity of 99.5 percent and is suitable for a majority of uses. The impurities consist primarily of trapped organic matter.

Investigation of Flotation Separation of Elemental Sulfur ...

In the granulation process of the flotation concentrate is a division of lead sulfate and elemental sulfur, the sulfate lead content in sulphur-sulfide phase is decreased from 28.44 % to 3.5 %, its recovery in a sulfate filter cake has reached 90.6 % FIELD: mineral dressing. SUBSTANCE: process comprises crushing, conditioning with acid, ionic sulfur-containing collector, and modifying reagent, and flotation leading to isolation of sulfides into foamed product, said modifying reagent being a composition containing 80.0-99.0% isoalkenylacetylenic alcohols C 8-C 10 having general formula RCH=CR'C≡C-C(CH 2 R")(CH 3)OH, 0-20% ...

Processes | Free Full-Text | Recovering Cobalt and Sulfur ...

The flotation process was used to recover cobalt and sulfur in the cobalt-bearing V–Ti tailings. The results showed that an optimized cobalt–sulfur concentrate with a cobalt grade of 2.08%, sulfur content of 36.12%, sulfur recovery of 85.79%, and cobalt recovery and 84.77% were obtained by flotation process of one roughing, three sweeping ... THE Sulfur Recovery FLOWSHEET. The flowsheet above is a typical example of economical treatment of low-grade sulphur by flotation. Due to the variable nature of the sulphur in these deposits, testwork, such as is offered by the 911metallurgy Equipment Company and Laboratories, is recommended to determine the exact flowsheet requirements. Information obtained from these tests will determine the ...

Characterization and Flotation of Sulfur from Chalcopyrite ...

Elemental sulfur produced by chloride leaching of sulfide ores or concentrates contains selenium and tellurium usually too high to be used in various industrial or agricultural uses. The sulfur in the leaching residue can be upgraded to 90% in grade by froth flotation and the sulfur concentration can be followed by sulfur purification and selenium and tellurium removal. The second-stage residue is separated by flotation to recover an elemental sulfur concentrate and a flotation tailings product high in lead and silver content. The bulk of the iron remains in solution and reports to the first-stage leach where it is precipitated as hydrated iron oxides and jarosite and rejected.

Magnetic separation of copper sulfide ores containing ...

Iron concentrate with high sulfur content, process indicates that the reason lies in the sulfur flotation reagent mixing time and sulfur flotation are short of time, therefore before sulfur flotation increase the mixing barrel and increased sulfur flotation flotation cell. Optimization of grinding technology, realize the productivity rise. The synchronous desulfurization and desilication of low-grade and high-sulfur bauxite through reverse flotation processes were studied using modified starch as depressants in this work. The effects of depressant dosage, modified depressant dosage and collector dosage on flotation …

Reverse Flotation | IntechOpen

Reverse flotation of coal can be explained as a process where valuable minerals are depressed, while undesired and unhealthy minerals are floated with the help of some reagents. Nowadays, conventional enrichment method of coal could not achieve removing unhealthy minerals partially from internal structure of coal such as sulfur, Hg, Au, which propagate in air after burning treatment, or heavy ... Company In Brief. Sellwell (Group) Flotation Reagents Factory is specialized in manufacturing multi-series of flotation reagents including xanthate, dithiophosphate, dithiocarbamate, aerofloat, sulfur, nitrogen, frothers, etc.

Copper extraction - Wikipedia

Consequently, the development of the froth flotation process was a major step forward in mineral processing. It made possible the development of the giant Bingham Canyon mine in Utah. In the twentieth century, most ores were concentrated before smelting. ... By-products generated in the process are sulfur dioxide and slag. The sulfur dioxide is ... Vo1. 2, Characterization and Flotation of Sulfur from Chalcopyrite Concentrate Leaching 3 can serve as the feed for the above-mentioned or similar processes to produce selenium- and tellurium-free sulfur product. Experimental Work Materials. The chalcopyrite …

US5439115A - Process for selective flotation of copper ...

In a process for a selective flotation of a copper-lead-zinc sulfide ore the raw ore is ground and slurried with water and the resulting suspension is aerated with air to adjust a certain oxidation-reduction potential and is subsequently successively conditioned with SO 2, Ca(OH) 2, and collecting and frothing agents, whereafter a flotation of Cu is effected. ALS flotation process development testwork, at both laboratory and pilot plant scale, minimises technical risks through well-planned, well-managed and well-executed metallurgical testwork programs. Froth flotation is the separation process of choice for most sulphide deposits as well as an increasing number of other minerals.

Sodium Hydrosulfide (NaSH)-An Alternative to Sulfur ...

The process feeds the Cu Sulfide concentrate produced through flotation and applies a reverse flotation circuit to separate the Moly sulfide from Copper sulfides. In this case, the MoS floats and the CuS is depressed in a bank of flotation cells. The control devise is also an ORP meter typically controlled at between -450 mv and -500 mv. Copper Smelting Process: Historically, the most abundant copper bearing ore was called chalcopyrite, CuFeS 2. This ore is first enriched by a process called flotation. Powdered ore is mixed water as a slurry and then further mixed with oil and a chemical called amyl xanthate.

Processes | Free Full-Text | Recovering Cobalt and Sulfur ...

The flotation process was used to recover cobalt and sulfur in the cobalt-bearing V–Ti tailings. The results showed that an optimized cobalt–sulfur concentrate with a cobalt grade of 2.08%, sulfur content of 36.12%, sulfur recovery of 85.79%, and cobalt recovery and 84.77% were obtained by flotation process of one roughing, three sweeping ... Transfer ore to floatation circuit cells where ore is pulped with water. Add a collector, which is an organic species that separates the species of interest from other worthless components; in this case precious metals from sulfur. Force air bubbles into the pulp, to which the metals will attach and float.

Copper Mining and Processing: Processing of Copper Ores ...

Copper processing is a complicated process that begins with mining of the ore (less than 1% copper) and ends with sheets of 99.99% pure copper called cathodes, which will ultimately be made into products for everyday use.The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and pyrometallurgy, respectively, due to the different ... Data-Driven Approximated Optimal Control of Sulfur Flotation Process MingfangHe ... Process Description Typically, a sulfur otation process is composed of three stageswithspecicfunctions,namely,roughing,scavenging, and cleaning (Figure ). e …

Mining Industry | Copper Sulfide Ore and Flotation Process ...

Jul 09, 2019· 3 Summary of the copper mineral flotation process (1) Copper minerals (such as chalcopyrite and covellite) that do not contain iron are similar in floatability. Cyanide and lime have weaker inhibition on them, so a large amount of lime can be added to inhibit pyrite in the separation of copper and sulfur without seriously affecting the ... Process steps include mining, concentration, roasting, smelting, converting, and finally fire and electrolytic refining. 12.3.2 Process Description2-4 Mining produces ores with less than 1 percent copper. Concentration is accomplished at the mine sites by crushing, grinding, and flotation purification, resulting in ore with 15 to 35 percent copper.