Copper Flotation Depressants

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.

Depressants for Pyrite / Flotation depressants ...

Flotation results indicate that PIONERA BioPolymers, at each dosage, significantly reduce pyrite than conventional pyrite depressants. Additionally, conventional pyrite depressants such as sodium cyanide, sodium hydro sulfide and Nokes reagent are toxic, highly regulated, difficult to handle and present an overall costly alternative.

Flotation Reagents - Mineral Processing & Metallurgy

Flotation Depressants What is a Flotation Depressant used for. The function of depressants is to prevent, temporarily, or sometimes permanently, the flotation of certain minerals without preventing the desired mineral from being readily floated. Depressants are sometimes referred to as inhibitors.

Gangue Depressant in Molybdenum Flotation

Sodium cyanide and Nokes reagent are commonly used depressants to reject iron, copper, and lead sulfide minerals for the flotation recovery and upgrading of molybdenite concentrate.

Flotation separation of copper–molybdenum sulfides using ...

Flotation. The flowsheet of the copper–molybdenum ore bulk flotation test is described in Fig. 2. Six hundred grams −2 mm ore was ground to 70% −74 μm in a Φ160 × 180 mm ball mill. The bulk flotation tests were conducted in a XFD flotation cell, with cell volumes of 1500 mL for rougher flotation and 500 mL for cleaner flotation.

Depressants for Clay / Flotation depressants ...

Clay depressant in a gold and copper bulk flotation plant trial. In production at a Gold and Copper flotation circuit the use of PIONERA F-100 showed a recovery increase in gold of 5% and a positive effect on the copper recovery by successfully depressing clay in the bulk flotation process.

CA1328512C - Flotation depressants - Google Patents

-` 1328~12 FLOTATION DEPRESSANTS This invention relates to processes for the separation of desirable minerals from undesirable minerals. In the processing of mineral-containing ores, it i9 necessary to remove undesirable minerals called gangue from the desired minerals.

(PDF) A Review of the Flotation of Copper Minerals

Copper is most commonly present in the earth’s crust as copper-iron-sulphide and copper sulphide minerals, for example, chalcopyrite (CuFeS2), bornite (Cu5FeS4) and chalcocite (Cu2S).

Depressants and dispersants - Huntsman Corporation

Depressants and dispersants In mineral flotation the challenge is to maximize the recovery of desired minerals while rejecting unwanted gangue components. Depressants are required to give a low affinity to active sites on valuable mineral surfaces and a high affinity for gangue minerals and some sulfides.

1 Froth Flotation – Fundamental Principles

1 1 Froth Flotation – Fundamental Principles Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a

Depressants and dispersants - Huntsman Corporation

Depressants and dispersants In mineral flotation the challenge is to maximize the recovery of desired minerals while rejecting unwanted gangue components. Depressants are required to give a low affinity to active sites on valuable mineral surfaces and a high affinity for gangue minerals and some sulfides.

(PDF) Effect of different depressants on galena flotation

Copper concentrate assayed 5.03% As since the major copper minerals were in tennantite form (copper arsenic sulphide mineral). In flotation tests, non-toxic reagents such as metabisulphite ...

Sequential Copper–Lead–Zinc Flotation

To improve the selectivity between copper and lead, a sequential copper-lead-zinc rougher circuit was tested. Each of the rougher circuits had a dedicated regrind and cleaner circuit.

Copper Molybdenum Flotation depressant - Barium Sulphate ...

Further, because optimum moly flotation pH is at 7-8 while optimum copper selectivity is typically in the 9-11 pH range, use of a moly collector in bulk flotation can improve floatability. Some mines find that the moly collectors can have a negative impact on copper flotation so testing and evaluation must be conducted to find the optimum moly collector hydrocarbon and frother products.

Flotation depressants / Applications / Home - Pionera

Selective depressants for mineral flotation processes. PIONERA’s BioPolymers are versatile additives that increase returns for our customers. Application results in important savings with minimal Health, Safety or Environmental issues.

Investigation of Flotation Parameters for Copper Recovery ...

Investigation of Flotation Parameters for Copper Recovery from Enargite and Chalcopyrite Mixed Ore Kazutoshi Haga+, William Tongamp and Atsushi Shibayama

COPPER DEPRESSANTS: CORRELATION BETWEEN STRUCTURE …

molybdenite2 : flotation of copper mineral s followed by that of MoS2 and vice- versa; separation of MoS2 from Cu-Mo bulk concentrates by either depressing the MoS 2 or the copper minerals.

copper flotation and dewatering - essentialgap.co.za

Introduction to Mineral Processing - Chevron … Introduction to Mineral Processing. ... Chemicals referred to as depressants are added to the pulp to reduce the flotation of the copper …

Utilization of polysaccharides as depressants for the ...

Utilization of polysaccharides as depressants for the flotation separation of copper/lead concentrate Author links open overlay panel Qin Wenqing a b Wei Qian a Jiao Fen a Yang Congren a Liu Ruizeng a Wang Peipei a Ke Lifang a

Use of ZnSO4 and SDD mixture as sphalerite depressant in ...

Considering the fact that copper ions inevitably exist in the pulp of the Cu-Zn sulfide flotation system, the sphalerite treated with Cu 2+ (5 × 10 −6 mol/L) was used for zeta-potential measurement, and the concentration of the other reagents was kept the same with the optimal dose of flotation …

natural organic depressants for copper gold ores flotation

natural organic depressants for copper gold ores flotation Flotation Reagent, Flotation Reagent Suppliers and Manufacturers . to Compare. Tags: Mining ReagentsFlotation CollectorGold Chemical Tags: Sodium ThioglycolateCopper DepressantFlotation Reagent. reagents for

copper flotation typical - perkinspreschool

24/09/2018 · The flotation process can separate a required mineral such as copper, nickel A typical copper operation contains many flotation cells, often with a pH sensor in Contact Us Evaluation of graphite depressants in a poly-metallic sulfide flotation

natural organic depressants for copper molybdenum ores ...

molybdenum ore flotation cells. Related Searches for molybdenum ore flotation cells laboratory flotation cell iron ore beneficiation plant cost copper ore processing plant chrome ore beneficiation plant iron ore mining equipment flotation cell iron ore washing plant wemco flotation cells fluorite ore flotation machine limonite ore flotation ...

flotation of copper - floraheritage

Flotation of Copper Ores - Mineral Processing & … 2018-6-17 · Pneumatic flotation is already fully established in a number of places and the results in comparison with the other and older schemes fully justify the opinion of your correspondent that it constitutes the most distinct advance in flotation …

Flotation Behavior of Complex Sulfide Ores in the Presence ...

Flotation Behavior of Complex Sulfide Ores in the Presence of Biodegradable Polymeric Depressants

Chapter 5 Roles of Depressants in Flotation of Sulphide ...

Chapter 5 Roles of Depressants in Flotation of Sulphide Minerals Abstract In this chapter, the depression mechanism of five kinds of depressants is introduced respectively.

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.

copper flotation products - ngena-ds.co.za

Jan 04, 2017· Size dependent gold deportment in the products of copper flotation . copper concentrator was significantly lower than copper recovery.

copper flotation removes - perkinspreschool

Removal of lead minerals from copper industrial flotation . Potato starch and dextrins resulting from thermolysis of potato starch in the absence of reagents and presence of l-amino acids are promising depressants …

DEXTRINS AS SELECTIVE FLOTATION DEPRESSANTS FOR SULFIDE ...

Dextrins as selective flotation depressants for sulfide minerals 277 depressing power towards copper minerals because the reduction of flotation of

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