Potassium amyl xanthate (KAX) was used as collector for pentlandite flotation. Dowfroth M254 was used as frother and lime (calcium oxide) was used as pH regulator. Diethylenetriamine (DETA) (99% purity) was purchased from Aldrich Chemicals Co. and used after diluted to 1% solution. SMBS, sodium metabisulfite, used combining with
Copper extraction refers to the methods used to obtain copper from its ores.The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors.
Flotation ofCopper The circuit designed for the flotation of copper is depicted in Fig. 1,together with the reagent regime shown inTable n. Aconsiderable amount ofearly work had shown that the sequential selective flotation of chalcopyrite andgalena would bepreferable tothebulk flotation ofcopper andleadbecause thelatter produced
Froth flotation is a good example of an engineering system, in that the various important parameters are highly interrelated, as shown in Figure 1. It is therefore important to take all of
Chapter 6 Copper Production Technology The last boomin technological innovation for the copper industry occurred in the first two decades of this century, whenopen pit mining, flo tation concentration,and the reverberatory smelter were adapted to porphyry copper ores. With the exception of leachingsolvent extrac
Abstract. This study explores the flotation behavior of chalcopyrite in the presence of different concentrations of sodium sulfide (Na 2 S183;9H 2 O) at pH 12 under controlled potential conditions. It was observed that the flotation of chalcopyrite is not depressed completely when the pulp potential is low, even at high concentrations of sodium sulfide,
In copper flotation, gold is floated with copper minerals, while pyrite is depressed in order to produce a saleable coppergold concentrate. Then, the depressed pyrite is activated and floated to recover the remaining gold associated with pyrite (Zheng and Manton, 2010).
5 (SMBS) in chalcopyrite and pyrite flotation. Kinetic flotation tests were also carried out in order to evaluate the kinetics behavior of the abovementioned minerals.
Nov 20, 20150183;32;ABSTRACTIn this study, a series of batch flotation experiments was conducted to evaluate both the role of particle size distribution and the presence of sodium metabisulfite Na2S2O5 (SMBS) in chalcopyrite and pyrite flotation. Kinetic flotation tests were also carried out in order to evaluate the kinetics behavior of the abovementioned minerals.
copper SX plant in the world, commissioned in 1974. Despite the equipment design now being outdated, this plant still continues to operate successfully, indicating the versatility and adaptability of this technology. Today, there are some 75 copper SX operations worldwide with
In this article, a novel chelating collector, 5(2,4,4trimethylpentyl)4amino1,2,4triazolidine3thione (TMATT), was designed to separate and recover copper oxide minerals, and its flotation
Application of Aeration to Complex Sulphide Ore and its Effects on difficult ore to treat and is processed in separate campaigns. The copper concentrates produced contain 1920% copper and 910% zinc. In order to improve copper concentrate quality, a decision was made to try aeration. Laboratoryscale aeration and flotation tests were
The copper minerals and waste rock are separated at the mill using froth flotation. The copper ore slurry from the grinding mills is mixed with milk of lime (simply water and groundup limestone) to give a basic pH, pine oil (yes, it comes from trees a byproduct of paper mills) to make bubbles, an alcohol to strengthen the bubbles, and a
Froth flotation cells to concentrate copper and nickel sulfide minerals, Falconbridge, Ontario. Froth flotation is a process for separating minerals from gangue by taking advantage of differences in
CopperLeadZinc ores. In most cases, lime is used as a pyrite depressant but some operations prefer soda ash because lime tends to depress precious metals. As described in the leadzinc process description, in some instances enhanced iron sulphide depression can be improved by aeration prior to the differential CuPb flotation step.
I experienced a coppergold massive ore type where thionocarbamate seemed to work better. Also, SMBS is a common pyrite depressant. Dithionocarbamates are very selective in copper flotation. It will not float pyrite. Can be used at a slightly elevated pH (9). It is a common approach in copper flotation.
Activators. Sinoz sources copper sulphate from multiple global sources and tailors the product to meet the needs of each customer in terms of their copper content, free flow, packaging and logistic requirements. We are major global suppliers of this product and provide expert technical support.
Ceylan Conclusion examined the effect of particle size on pyrite flotation in the In treatment of high pyritic copper sulfide ores, selection of an presence of 100 g/t SMBS, 20 g/t MIBC, and 50 g/t aerophine effective depressant is a major determining factor in selective 3418 (sodium isobutyl dithiophosphinate) at pH 11.812. d80 and successful flotation of valuable minerals.
Aug 15, 20130183;32;Also Na2S as copper oxide minerals flotation activator. When the amount of Na2S added to the solution after the flotation of dissociation and oxide minerals surface S2anion lattice displacement reaction that generates sulfide copper oxide surface film which is
For pyrite flotation, you see maximum iron/pyrite depression using Sodium Metabisulfite/MBS takes effect at around pH 6. MBS will depress metals/minerals in the order as dosage increases Fe/Iron (Pyrite) Zn/Zinc (Sphalerite) Pb/Lead (Galena) Cu/Copper (Chalcopyrite)
The product from the copper cleaner flotation circuit is the final copper concentrate. Copper rougher flotation tailings will be pumped to feed the lead flotation circuit (Stratabound) or in the case of Stringer mineralization, delivered to tailings filtration. The lead flotation circuit is similar to the copper flotation circuit, but the quantity of flotation cells and the types of reagents used are different.
difficult ore to treat and is processed in separate campaigns. The copper concentrates produced contain 1920% copper and 910% zinc. In order to improve copper concentrate quality, a decision was made to try aeration. Laboratoryscale aeration and flotation tests
The Flotation Process. Until quite recently copper ore had to be handpicked if the extraction of the metal was to be economical. In fact, in the last century, ores of 4
Sodium Metabisulphite (SMBS) 97%. It is also used as a source of sulphur dioxide, mixed with air or oxygen for the destruction of cyanide in commercial gold cyanidation process. This makes it a suitable alternative to ferrous sulphate heptahydrate. Other uses Flux for decomposing minerals; substitute for sulphuric acid in dyeing; disinfectant;
Introduction to Sodium Metabisulfite in application of metal mineral processing. 7), or use Sulfur dioxide, zinc sulfate, ferrous sulfate and ferric sulfate together as inhibitor. Thus galena, pyrite, sphalerite are inhibited. The inhibited sphalerite can be activated by small amount of copper sulfate.
It was revealed that using 200 g/t SMBS provides not only the highest and the lowest chalcopyrite and pyrite recoveries, but also the maximum and minimum copper and iron grades. Pyrite recovery was sharply increased by the addition of sodium sulfide in light of sodium sulfideinduced collectorless flotation; however, it showed a very weak effect on chalcopyrite floatability.
Figure 1 The flotation system includes many interrelated components, and changes in one area will produce compensating effects in other areas (Klimpel, 1995) Froth flotation is a good example of an engineering system, in that the various important parameters are highly interrelated, as
The pentlanditepyrrhotite flotation selectivity obtained with TETA and sodium metabisulfite (SMBS), respectively, was similar to that obtained under baseline conditions. However, the combined use of TETA and SMBS produced an excellent separation of the two
Oxidation (aeration of the flotation pulp) of Cuactivated pyrite induced by xanthate before DETA addition has a greater effect on the surface chemistry of the pyrite particles and subsequently increased pyrite depression. The above condition decreased pyrite recovery drastically from 92% to 12%.
Today, there are some 75 copper SX operations worldwide with cathode production above 10 kt/a. The top ten producers currently account for some 40% of the global 4.3 Mt/a SXEW copper production. South America (predominantly Chile and Peru) is the largest copper cathodeproducing region, with annual production of some 2 Mt.