Customer case aboutinorganic depressants for sulphide copper ores flotation

inorganic depressants for sulphide copper ores flotation

Flotation Reagents Mineral Processing & Metallurgy

Among the inorganic depressants, lime is the cheapest and best for iron sulphides, while zinc sulphate, sodium cyanide, and sodium sulphite depress zinc sulphide. Sodium silicate, quebracho, and also cyanide are common depressants in non-metallic flotation.

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(PDF) A Review of the Flotation of Copper Minerals

These oxidised copper minerals are found in weathered regions of most copper sulphide ore bodies The overlaying oxidic ore is usually stockpiled after it is removed from the sulphide

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The depression of pyrite in selective flotation by

The depression of pyrite in selective flotation by different reagent systems A Literature review reagent system for particular circumstance and sheds light on the development of potential depressants for pyrite flotation. 2. Inorganic depressants M.N. ToropovaRole of sulphite and thiosulphate ions in the copper-nickel sulphide ore

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Tannins: the organic depressants alternative in selective

Being pyrite (iron sulphide) the main gangue mineral associated with copper sulphides, it is of the main interest to study conditions to obtain selective depression of pyrite. In the case of Cu–Mo flotation plants, inorganic depressant reagents are commonly used, such as cyanide, Na 2 S, NaSH or some sulphites.

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Organic Flotation Depressant

These depressants are organic mixtures reacted with inorganic salts. They have found application for depression of oxidized pyrite, marcasite and pyrrhotite during the flotation of Cu, Cu-Zn, Cu-Pb-Zn and Pb-Zn ores. Some of these depressants have been adapted for depression of zinc during sequential copper zinc flotation. Depressants from the DS series

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Selection and evaluation of different depressants systems

All rif, hts reserved 0892--6875/95 $9.50+0.00 SELECTION AND EVALUATION OF DIFFERENT DEPRESSANTS SYSTEMS FOR FLOTATION OF COMPLEX SULPHIDE ORES S. BULATOVIC and D.M. WYSLOUZIL Lakefield Research, Lakefield, Ontario, Canada (Received 5 April 1994; accepted 29 July 1994) ABSTRACT One of the most important families of chemicals used in

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The selective flotation of chalcopyrite against galena

The processing of the copper-containing ores includes the bulk flotation of copper and these sulfide minerals, and the subsequent separation of copper and them. In the flotation practice of the polymetallic sulphide ores, the choice of the separation method may be sequential, almost invariably in the order copper, then lead, and finally zinc

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Flotation Depressants Mineral Processing & Metallurgy

First let’s change the amount of the Flotation Depressants used. The valuable mineral that isn’t liberated from the unwanted mineral will begin to be depressed along with the waste. For the floatation operator, the change that will become most apparent is, that the color of the froth will begin to reflect more of the wanted mineral’s color.

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(PDF) Effect of different depressants on galena flotation

Effect of different depressants on galena flotation. depressant have been observed with a number of organic and inorganic depressant combinations. in a high pyritic copper sulfide ore

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The effect of polysaccharides and polyacrylamides on the

The effect of the depressant glucomannan (KGM) on the depression of talc and the flotation of a nickel–copper sulfide ore have been investigated through microflotation, batch flotation and

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Selection and evaluation of different depressants systems

Read "Selection and evaluation of different depressants systems for flotation of complex sulphide ores, Minerals Engineering" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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Handbook of Flotation Reagents MESA

Handbook of Flotation Reagents Chemistry, Theory and Practice: Flotation of Sulfide Ores by Srdjan M. Bulatovic • ISBN: 0444530290 • Publisher: Elsevier

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Handbook of Flotation Reagents ScienceDirect

In the flotation of copper–zinc massive sulfide ores, the flotation properties of copper and zinc are determined by the nature and composition of the ore. Selectivity between chalcopyrite and sphalerite, in principle, is determined by the type of copper minerals present in the ore.

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The effect of copper sulphate addition on the recovery of

of copper sulphate dosage that can activate the chromite and also to evaluate the effect of the depressant type and dosage on the recovery of chromite in the flotation of UG2 ore. The two depressants selected were for evaluation of the guar gum, IMP4 and the carboxymethyl-cellulose (CMC), KU5. Flotation performance was evaluated using the

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Dextrin as a non-toxic depressant for pyrite in flotation

It is shown that dextrin is an effective depressant for pyrite in flotation of copper in the chalcopyrite ore at pH 8, but the pulp needs to be aereated in order to promote the surface oxidation

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Handbook of Flotation Reagents Chemistry, Theory and

Handbook of Flotation Reagents: Chemistry, Theory and Practice is a condensed form of the fundamental knowledge of chemical reagents commonly used in flotation

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FROTH FLOTATION : RECENT TRENDS Flotation of Sulphide

History of Sulphide ore flotation dates back to beginning of 20th century. Sulphide ores are major sources of base metals like Copper, Lead, Zinc, Nickel, Cobalt etc. Beneficiation of these base metal sulphide minerals is predominating through froth flotation technique. This technology has acclaimed importance as a versatile process for

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Sulphide Gold Ore Treatment by Leaching and Flotation Process

Sulphide Gold Ore Treatment by Leaching and Flotation Process Previous Next Problem with gold recovery from sulphide ore: How may a mill get the maximum recovery of gold from a sulphide ore,at the least capital cost and at the same time obtain the highest net return.

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DEXTRINS AS SELECTIVE FLOTATION DEPRESSANTS FOR

Dextrins as selective flotation depressants for sulfide minerals 277 depressing power towards copper minerals because the reduction of flotation of copper minerals is greater than towards the lead minerals. Still greater amount of dextrin N-8 depresses flotation of sulfides in the ore

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Copper Sulfide Flotation 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

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depressants Tejaras Co. chemicaliran

Hydrate Lime: Depressant for pyrite during copper and zinc flotation and in other sulphide ores where pyrite is a problem. Citric Acid: Organic Acid gangue depressant for ores containing oxide minerals Sodium sulfide & Hydrosulfide (NaHS): Used for the depression of Cu and Fe sulfide minerals in Cu/Mo separation. Nokes Reagent: Used for the

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study problems of pyrite folotation of copper sulphide ore

The flotation response of a Pb-Zn sulphide ore from the Rosh Pinah Mine (Namibia) was studied in the presence of inorganic depressants such as sodium cyanide and zinc sulphate. the zinc flotation circuit after activation with copper sulphate.

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role of depressants during conc of sulfide ores

Froth Flotation (Sulphide amp; Oxide) Froth Flotation (Sulphide amp; Oxide) So one thing would remain in possibility to occurrence that sphalerite is preactivated or activated in situ during grinding (Bulotavic, handbook and it does come extremely early in the float even in the presence of depressants. PbZn+/Py ores hosted in dolomitic host

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Copper–Molybdenum Sulphide Ore by Flotation

Copper–Molybdenum Sulphide Ore by Flotation Zhixiang Chen 1, Guohua Gu 1,*, Shuangke Li 1,*, Chongqing Wang 2 and Renfeng Zhu 1,3 At present, inorganic depressants are routinely used as the selective depressants. For example, sodium hydro-sulfide (NaHS),

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