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USE OF NON-TOXIC DEPRESSANTS IN THE SELECTIVE FLOTATION …

Abstract. This paper reports the results of flotation tests conducted with a copper-lead-zinc sulphide ore. The major sulphide minerals in the ore are chalcopyrite, galena, sphalerite, marmatite and pyrite with corresponding metal amounts of 6.80% Pb, 1.05% Cu and 1.50% Zn, respectively.

Method of floatation of copper-zinc-pyrite ore (versions)

1. Method of flotation of copper-zinc-pyrite ore, including grinding in an alkaline medium, air conditioning with reagents - collectors and frothers, collective copper-zinc flotation to produce collective concentrate containing copper minerals and natural-activated sphalerite, and tails, characterized in that as the collector used is supplied in the following sequence composition …

FROTH FLOTATION : RECENT TRENDS Flotation of Sulphide …

Today, about 400 million tonnes of sulphide ore is treated annually by flotation process worldwide. M/s Hindustan Zinc Ltd. (HZL), a leading lead-zinc mining and smelting company in India has experienced a spectacular growth from the time of its inception. Starting from a single 500 MT per day lead-zinc mine at Zawar, HZL has expanded its mining

pyrite in zinc ore flotation mar - konczyna-dolna.pl

Pyrite In Zinc Ore Flotation In Iran. chalcocite pyrite ore flotation pyrite in zinc ore flotation in iran A low grade PbZn ore sample containing 31 pyrite and 44 dolomite and assayed at 234 Pb 691 Zn and 1536 Fe was prepared from the Kooshk mine in Yazd province Iran and used as the primary ore in flotation . Get Price. Learn More

Lead-Zinc ores - Danafloat

The zinc concentrate is actually the tails from this bulk separation step. The flotation tailing is the zinc concentrate. If the silver is associated with the galena, the silver reports to the lead concentrate. While pyrite is fairly easy to depress with lime, pyrrhotite is more difficult to depress.

pyrite in ore flotation in iran

pyrite in ore flotation in iran pyrite in ore flotation in iran As a leading global manufacturer of crushing grinding and mining equipments . Froth flotation ore crusher price. In 1910 when the Zinc Corporation replaced its Elmore process with the Minerals Separation air froth flotation process at its Broken Hill plant the primacy of the ...

pyrite in zinc ore flotation mar - strzyzeniepsowtczew.pl

Pyrite is one of the major diluents of copper, lead and zinc concentrates. One explanation for the high flotation of pyrite in alkaline pH conditions is its inadvertent activation by copper either dissolved from copper minerals present in the ore or added in the zinc circuit to activate the flotation of sphalerite Bushell and Krauss, 1962 ...

(PDF) Pyrite Flotation: A Review

Complex sulfide ores are concentrated mainly through flotation. Sulfide mineral s are semi- conductors, and pyrite is the major gangue mineral associa …

(PDF) Role of starch and metabisuphite on pure pyrite and ...

This paper investigates the role of non-toxic depressants on the flotation of pyrite. Starch and meta bisulphite were used as a depressant for pure pyrite sample and a …

Pyrite In Zinc Ore Flotation - as-autopflege.ch

Flotation experiment research on a polymetallic sulfide ore of. flotation copperlead separation priority flotation zinc and pyrite from the bulk flotation tailings was used. The concentrate indexes of the grade of copper, lead, and zinc were 20.87, 49.91, and 60.10, respectively, and the recoveries were 75.59, 91.62, and 74.07.

Flotation Machines For Pyrite Ore Copper Ore

The practice has proved that the use of copper sulfate activation and butyl xanthate as the collector when preferentially flotation of copper can make the zinc-sulfur mixed ore contain 6.5% zinc and 40.29% sulfur, and the recovery rate of zinc and sulfur can reach more than 90% The separation and recovery effect is remarkable.

Pyrite Mining | Processing Equipment | Flow Chart | Cases ...

As flotation also can be used for pyrite ore separation, though flotation separation has deficiency with considerable large investment in equipment, higher mining cost, while better efficiency and index in mining with simple flotation reagents, so flotation methods can be used for low grade pyrite ore.

Technology of selective flotation of pyrite copper-zinc ores

This article gives the results of research of composition of twotype ores of Tarnersky deposit — pyrite copper-zinc ore and pyrrhotite-pyrite copper-zinc ore. Ores is distinguish by content of pyrrhotite and pyrite, as well as the various content of pyrite mineral associations. There is established that prevalence of pyrrhotite under pyrite in ratio 2:1 needs the long-term aeration …

(PDF) Evaluation of lead zinc ore tailings by flotation

Evaluation of tailings from processing plants is always an important issue. Lead-Zinc ore tailings containing 3.12% Zn, 3.43% Pb, 0.71 g/t Au and 74 g/t Ag was subject to this study. Flotation ...

Flotation Machines For Pyrite Ore Copper Ore

Pyrite In Zinc Ore Flotation Mar High Precision Advanced Flotation Cells Machine Products. Flotation machine sf12 easy installation good flotation cell price for lead zinc ore separation in mexico from us 6580 9 yr hightech circular large cell flotation machines up to 680m3 each made in china us 0 set low price gold column zinc ...

pyrite separation of tin ore by froth flotation

Mar 17, 2017 In froth flotation, depressing pyrite or any metal is impossible if minerals are locked. Effective grinds-liberation and good pH targeting will let you effectively depress pyrite. Generally, the higher you raise the pH, the less floatable sulphides become. pH control and pyrite depression/rejection in a poly-metallic environment is ...

Flotation Depressants - Mineral Processing & Metallurgy

Sodium cyanide. Sodium cyanide is mainly used to depress sphalerite in the first or lead-flotation stage in separating lead from zinc minerals. Its action on pyrite is nearly as strong as on sphalerite, but it does not affect galena unless a large excess is added or the contact time is too long. The effect of sodium cyanide is often intensified ...

CANATUAN CU/ZN FLOTATION METALLURGY

low zinc (Zn) ore was fed to the plant. Marketable copper concentrate at 91-95% recovery was produced utilizing a high-pH bulk sulphide rougher flotation and 2 cleaning stages. Because of increased levels of Zn of the ore body, a Cu/Zn separation circuit was initiated in early 2010 following an intensive laboratory test work program.

pyrite in zinc ore flotation

Dispersion effect on a leadzinc sulphide ore flotation . Samples of ore and also of the minerals sphalerite, galena, pyrite, and dolomite were selected for the experiments Nine types of dispersing agents and six blends among them were employed A set of three dispersing agents was selected for the lead flotation and another set of three was chosen for zinc flotation

Selective depression of arsenopyrite with in situ ...

Here, the flotation of artificial mixed ore of pyrite/arsenopyrite was conducted to verify the separation effect of ZnSO 4 on pyrite/arsenopyrite system in Na 2 CO 3 and SBX solution. When the pyrite:arsenopyrite was 10:1, the S and As grade of the mixed ore were 50.26% and 4.18%; when the ratio was 5:1, the S and As grade were 47.71% and 7.67% ...

pyrite in zinc ore flotation mar

pyrite in zinc ore flotation in iran. Pyrite In Zinc Ore Flotation In Iran. chalcocite pyrite ore flotation pyrite in zinc ore flotation in iran A low grade PbZn ore sample containing 31 pyrite and 44 dolomite and assayed at 234 Pb 691 Zn and 1536 Fe was prepared from the Kooshk mine in Yazd province Iran and used as the primary ore in flotation .

THE INFLUENCE OF CYANIDE SALTS AND FERROUS …

whereas the commonest reagents for its depression in lead-zinc ore flotation are of cyanide type. However, cyanides are not mainly in use for pyrite depression in copper ore flotation. Depressing effect is achieved with OH– ions at high pH, mostly with lime. The first published data about the depressing effect of cyanide were found in 1922.

Recover - Molycop

Collector Blend (MC-347E) Partially water soluble and widely used in copper sulphide ore flotation, particularly when a secondary mineralization of molybdenum or silver exists. Very selective against pyrite and also used in zinc sulphide ore flotation. Ester Amyl Xanthate (MC-C33) Aqueous solution without foaming properties. Widely applied in ...

flotation of lead and zinc from lead zinc pyrite ore

Pyrite In Zinc Ore Flotation Mar. Reverse Flotation Of Pyrite From A Zinc. Flotation Of Lead And Zinc From Lead Zinc Pyrite Ore Ore is increased the most obvious effect of the galvanic oxidation of galena by pyrite is the release into the system of galena oxidation products providing an ample supply of does pyrite affect galena oxidation and subsequent lead otation behaviour …

CN1231947A - Method for separating zinc and sulfur using ...

A process for separating Zn from S with high-frequency fine sieve features that high-sulfur multi-metal ore is subjected to crushing, grinding, lead floatation and zinc (sulfur) floatation to obtain coarse zinc concentrate and zinc concentrate, the coarse sulfur is screened out by high-frequency fine sieve, and the residual product is subjected to grinding and floatation to obtain …

CN106040420A - Technology for recovering pyrite from ...

The invention relates to a mineral processing technology, in particular to a technology for recovering pyrite from flotation tailings of lead-zinc ore, and aims at solving the problems of underground wastewater and tailings. The technology for recovering pyrite from flotation tailings of lead-zinc ore comprises the following steps: 1, dehydrating high-alkali wastewater; 2, …

Laboratoy Zinc Ore Flotation Available In India

Pyrite In Zinc Ore Flotation In Iran. chalcocite pyrite ore flotation pyrite in zinc ore flotation in iran A low grade PbZn ore sample containing 31 pyrite and 44 dolomite and assayed at 234 Pb 691 Zn and 1536 Fe was prepared from the Kooshk mine in Yazd province Iran and used as the primary ore in flotation .

pyrite in zinc ore flotation mar - opiekundluznika.pl

pyrite in zinc ore flotation mar. PDF Technical Note Cyanide elimination from lead-zinc flotation. for selective flotation because of its excellent depressing properties. However, cyanide is also a permanent health hazard because it can turn into poisonous gas in the acid media (Draskic, 1986). The process of the lead and zinc flotation ...

pyrite in zinc ore flotation - mobilistico.de

Flotation of sphalerite and pyrite in the presence of. Pyrite is one of the major diluents of copper lead and zinc concentrates One explanation for the high flotation of pyrite in alkaline pH conditions is its inadvertent activation by copper either dissolved from copper minerals present in the ore or added in the zinc circuit to activate the flotation of sphalerite Bushell and Krauss 1962

Flotation Test of Pyrite from a Lead-zinc Ore in Huanjiang

Citation: Flotation Test of Pyrite from a Lead-zinc Ore in Huanjiang[J]. Conservation and Utilization of Mineral Resources, 2010, (2): 33-35. doi: 10.3969/j.issn.1001-0076.2010.02.009

pyrite in zinc ore flotation in iran

pyrite in zinc ore flotation in iran. Pyrite In Zinc Ore Flotation In Iran. chalcocite pyrite ore flotation pyrite in zinc ore flotation in iran A low grade PbZn ore sample containing 31 pyrite and 44 dolomite and assayed at 234 Pb 691 Zn and 1536 Fe was prepared from the Kooshk mine in Yazd province Iran and used as the primary ore in flotation .

Chapter 7. Depression of sphalerite with cyanide and zinc ...

activate the sphalerite in the zinc flotation circuit. Since chalcopyrite (0.3%) is also present in the Rosh Pinah Mine ore, it is believed that the dissolution and/or oxidation of chalcopyrite and galena can contribute to the presence of copper and lead ions in the flotation pulp during the beneficiation of the ore.

Depression of the zinc minerals and flotation of galena As ...

in operating plants [13]. There are several depressant systems identified to be quite effec-tive for specific ore types and are described as follows: Lime–NaCN/HQS mixture – SO 2 system This depressant system was developed for treatment of lead–zinc ores that contain pyrrhotite and carbonaceous pyrite.The HQS is a modified dextrin, developed and mar-keted by Huntsman …

Author Correction: Critical importance of pH and collector ...

Author Correction: Critical importance of pH and collector type on the flotation of sphalerite and galena from a low-grade lead–zinc ore Abdolrahim Foroutan 1, Majid Abbas Zadeh Haji Abadi 1,

FINE SULFIDES IN THEIR FLOTATION P. Somasundaran, B.Sc., …

case of the New Brunswick ore, flotation of the -325 mesh feed is reported to recover only 70% of lead at 30% concen-trate grade and 70% of zinc at 50% concentrate grade whereas in the case of the McArthur River prospect pilot tests showed only a dismal 20% recovery of zinc (50% concentrate) and

Depression of pyrite in the flotation of high pyrite low ...

In this research work, selective depression of pyrite in the flotation of a low-grade lead-zinc ore containing 31% pyrite was investigated in the absence and presence of Acidithiobacillus ferrooxidans. Pyrite was significantly depressed with these bacteria using the optimum dosage of reagents. Sphalerite recovery and Zn grade in the obtained sphalerite concentrate were both …