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
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.
Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.This is used in mineral processing, paper recycling and waste water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.
Nickel Ore Processing. Nickel ore mainly consists of copper nickel sulfide ore and nickel oxide ore, beneficiation and processing of both methods is completely different. Copper nickel sulfide ore beneficiation methods, the most important is the flotation, magnetic and re election is usually secondary dressing method.
Structure of a NaSH Crystal. Sodium Hydrosulfide (NaSH) solution is an alternative product to sulfur from hydrogen sulfide. Much hydrogen sulfide ends up on solid bed medias such as iron sponge or Sulfatreat. This is disposed of in landfills. These processes are justified in most cases.
Copper oxide ores Copper sulphide ores Flotation collectors Mineral processing Alkyl hydroxamates abstract Sherwood Coppers Minto Mine processes a high grade coppergold deposit in Yukon, Canada. The ore mined is from a primary copper sulphide deposit with separate additional deposits of copper oxides.
From the formula, it is clear that iron and sulfur have to be removed in order to produce copper. The roasting process changes some of the CuFeS 2 to copper oxide; removes some of the sulfur as sulfur dioxide; This is done by heating the concentrated ore from froth flotation. It is heated to between 500 C and 700 C in air.
Chapter 12 Flotation of Copper Sulfide Ores. By Srdjan M. Bulatovic. More than 170 copper containing minerals are known and only 10 15 of these minerals have any economic value. The most important economic copper minerals are chalcopy rite, chalcocite, bornite and covellite. Table 12.1 lists the copper minerals of economic value.
The next step in the process flow is smelting for sulfide ore concentrate and solvent extraction for oxide ore leach solution. 6. Refining Sulfide Ore Refining. The final step in processing sulfide ore copper from the smelter is to make high purity copper cathodes. 8. Copper Products Many Uses.
Figure 4 Concentration of copper ore by froth flotation. (b) Conversion of the sulfides and other copper compounds to copper. The conversion is done by several methods i) by roasting copper sulfide ores ii) the leaching process iii) the bacterial method (i) By roasting copper sulfide ores.
Process steps include mining, concentration, roasting, smelting, converting, and finally fire and electrolytic refining. 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.
Process Introduction. The plant design for froth flotation of sulfide ores depends on its component and ore floatability. After crushing grinding and gravity separation of sulfide ores, the froth flotation plant design is conducted under mineral testing and floatation reagent design.
ores are either treated through standard sulphide flotation, sulphidisation or flotation followed by acid leaching. The performance of each of these process routes depends on the degree of oxidation as predicted by the proportion of acid soluble copper present in the ore. Process parameters must be aligned to optimize the recovery and grade
Magnetic separation of copper sulfide ores containing copper and magnetite. Foam proceed flotation separation of copper and sulfur, the rough concentrate of copper by two concentrate to get copper concentrate; in flotation mechanism the pulp into sulfur flotation system flotation, copper scavenging tailings proceed sulfur once rough three sweep
In most flotation plants, sulfur and silver on gold grains (in all likelihood in the form of silver sulfide) promoted gold flotation. Copper must be assisting gold flotation as deciphered from the superior floatability of auricupride [Cu 3 Au] and tetra auricupride [AuCu] relative to native gold.
Copper Sulfide Archives Mineral Processing Metallurgy. Copper Sulfide Flotation Circuit. Beneficiation of Copper Sulfide by Flotation. Copper, due to the present world demand and price, is of foremost interest to the mining industry.Many new properties are either in the process of being brought into production or are being given consideration.
Flotation of single copper sulfide is usually carried out in alkaline media.The regulator is mainly lime, the dosage of which is 0.5 ~ 3kg/t ore.Flotation pulp pH value 8 ~ 10, sometimes in order to strengthen the inhibition of pyrite, pH value can reach
Flotation of non sulfide copper minerals is rare because these ores are mostly subjected to hydrometallurgical copper recovery, for example, heap leaching. In Zambia and Zaire, however, siliceous copper oxide ores are floated with fatty acid collectors, and dolomitic copper oxide ores are sulfidized with sodium hydrogensulfide and then floated
separating sulfide minerals from silica gangue (and from other sulfide minerals); separating Froth flotation is a good example of an engineering system, in that the various important Grade/recovery performance of a hypothetical copper ore flotation process. Product % Weight % Cu Assay Feed 100 2.09 Concentrate 10 20.0
Beneficiation of Copper Sulfide by Flotation. Copper minerals usually occur in low grade deposits and require concentration prior to smelting. The method and degree of concentration depends on smelter location and schedules, together with the nature of the ore deposit. Sulphide copper ores generally occur with pyrite, pyrrhotite,
flotation concentrate can be sent back to chloride leaching circuits. Keywords Elemental sulfur, sodium silicate, dispersant, depressant. Introduction Frash process, a solution mining method operated at an elevated temperature and pressure, has been the major process for producing elemental sulfur in the United States for many decades.
The polymetallic sulfide ores of copper, lead, and zinc are usually processed via flotation, and the concentrates of these three metals and sulfur can be obtained. Valuable elements in the ore are recovered by enriching the concentrate products and can be further recovered via smelting[2 4].