selective flotation gold of chalcopyrite from pyrite healing

selective flotation gold of chalcopyrite from pyrite healing

Selective flotation of chalcopyrite from pyrite using ...

Aug 15, 2019  Single mineral flotation tests were performed to evaluate the flotation behavior of chalcopyrite and pyrite using HEDP or EX as collector at a dosage of 2 × 10 −4 mol/L with the results shown in Fig. 1(a). It can be seen from Fig. 1(a) that, within the pH range studied, the flotation recovery of chalcopyrite using HEDP as collector was slightly higher than that of chalcopyrite with EX as ...

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Selective flotation of chalcopyrite from pyrite using ...

Screening and/or designing more selective and green collectors is a ‘hot topic’ in mineral processing field. In this work, 1-Hydroxyethylidene-1, 1-diphosphonic acid (HEDP), a cheap green reagent widely used in water treatment, was for the first time, applied in the flotation separation of chalcopyrite from pyrite.

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(PDF) Selective flotation of chalcopyrite from pyrite ...

Jul 31, 2019  Single mineral flotation of chalcopyrite, molybdenite and pyrite with a regular collector (potassium amyl xanthate) and a selective collector (N-isopropoxypropyl-N′-ethoxycarbonyl thiourea) for ...

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AN FTIR STUDY ON SELECTIVE SEPARATION OF PYRITE FROM ...

Chalcopyrite and arsenopyrite are often associated with pyrite and selective depression of the pyrite from these would prove economically beneficial for further extraction. As against the conventional techniques, microbially induced flotation and flocculation stands out to be more effective, economically viable and an environmentally benign process

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Selective chalcopyrite flotation from pyrite with ...

Micro-flotation test showed that when the pH was 8.5, the recovery efficiency of pyrite decreased from 80.18% to 22.17% after adding SDD, while that of chalcopyrite decreased from 96.32% to 92.79% ...

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Flotation of Pyrite - 911metallurgist

May 03, 2017  The recovery of copper, as chalcopyrite, is variable; the highest recovery (93.2 per cent.) was obtained by the use of X cake and xylidine in alkaline solution. This reagent at the same time gave much lower recoveries for both pyrite (47.9 per cent.) and zinc (71.0 per cent.), thus indicating possibilities of differential or selective flotation.

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The Selective Flotation of Arsenopyrite from Pyrite

The selective flotation of arsenopyrite from pyrite B. Tapley, D. Yan * WA School of Mines, Curtin University, LB 22 Kalgoorlie, WA 6433, Australia Received 8 May 2003; accepted 7 July 2003 Abstract Flotation tests were conducted to compare the arsenopyrite depressing effect of MAA with pH control, potassium permanganate and pre-aeration.

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(PDF) Heterocoagulation of chalcopyrite and pyrite ...

Chalcopyrite and pyrite heterocoagulate in the acidic medium, i.e. at pHb5.5, but do not coagulate in the alkaline medium in either the absence or the presence of DTP and TC flotation collectors. ! Selective flotation of chalcopyrite from pyrite is possible at pH=10 and is impossible at pH=4. !

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US4283017A - Selective flotation of cubanite and ...

A process for beneficiating a finely ground ore containing sulfide minerals of copper and nickel by selective flotation to produce a copper concentrate and a copper-nickel concentrate comprises pulping the ore with water to form a slurry, conditioning the slurry with an aqueous solution of SO 2 (H 2 SO 3 ) equivalent to from about 2 to about 4.5 pounds of SO 2 per ton of dry ore for a time ...

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Pyrite-gold recovery in copper rougher flotation tailings ...

The present study investigates the effect of regrinding and aeration on the separation of pyrite from gold in copper rougher flotation tailings (0.07% Cu, 0.61g/t Au, tail grades). An aeration stage was applied both at the head of copper flotation (copper rougher feed) and after regrinding of the copper rougher tailings, before gold/pyrite selective flotation.

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The role of sodium sulfide in the flotation of pyrite ...

Abstract In copper-gold flotation plants, pyrite which is depressed in copper flotation is often floated subsequently with the addition of sodium sulfide (Na2S) to recover the associated gold. For the first time, this study investigated the role of Na2S responsible for the flotation of pyrite depressed in chalcopyrite flotation through flotation tests and Cyro-XPS (X-ray photoelectron ...

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Effect of organic depressant lignosulfonate calcium on ...

Oct 01, 2009  The flotation tests of single mineral show that LSC can depress the flotation of pyrite in a certain pH range, but it has little effect on chalcopyrite flotation. Flotation separation of a mixture of chalcopyrite and pyrite can be completed to obtain a copper concentrate grade up to 24.73% with a recovery of 80.36%.

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pyrite in zinc ore flotation mar

In this study, chitosan polymer was tested as a potential selective green depressant of pyrite in the bulk flotation of galena (PbS) and chalcopyrite (CuFeS 2) from sphalerite (ZnS) and pyrite (FeS 2) using sodium isopropyl xanthate as a collector and 4-methyl-2-pentanol (MIBC) as a frother. Flotation tests were carried out in a D12-Denver ...

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

Jun 12, 2017  In this study, chitosan polymer was tested as a potential selective green depressant of pyrite in the bulk flotation of galena (PbS) and chalcopyrite (CuFeS 2 ) from sphalerite (ZnS) and pyrite (FeS 2 ) using sodium isopropyl xanthate as a collector and 4-methyl-2-pentanol (MIBC) as a frother. Flotation tests were carried out in a D12-Denver flotation laboratory cell in the presence and ...

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Pyrite composition and ore genesis in the Prince Lyell ...

May 01, 1996  The Prince Lyell copper-gold-silver deposit occurs in the late Cambrian Mt Read Volcanics, at Queenstown, Tasmania. Steeply plunging, broadly conformable lenses of disseminated and stringer pyrite-chalcopyrite mineralisation occur in quartz-sericite-chlorite rocks derived from intense alteration of predominantly felsic lavas and volcaniclastic rocks.

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Stibnite - an overview ScienceDirect Topics

Gold–antimony ores usually contain stibnite (1.5–4.0% Sb), pyrite, arsenopyrite gold (1.5–3.0 g t −1) and silver (40–150 g t −1). Several plants in the USA (Stibnite, Minnesota and Bradly) and Russia have been in operation for some time. There are two commercial processes available for

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Journal of Mining Sciences 2014 number 6

It is found that selective gold recovery from gold-bearing material in flotation with MTH and ETH is conditioned by a number of factors that accelerate formation of low solubility compounds on the surface of gold particles. ... flotation, galena, chalcopyrite, sphalerite, xanthate ... which enables selective flotation of pyrite and arsenopyrite ...

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Minerals Free Full-Text Selective Flotation of ...

An efficient flotation process was developed to selectively recover elemental sulfur from a high-sulfur pressure acid leaching residue of zinc sulfide concentrate. The process mineralogy analysis showed that the sulfur content reached 46.21%, and 81.97% of the sulfur existed as elemental sulfur which was the major mineral in the residue and primarily existed as pellet aggregate and biconical ...

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Mahdi Gharabaghi - Personal page - دانشکده مهندسی معدن

"Selective flotation of sedimentary Phosphate from siliceous and carbonate gangues." 11th Conference on Environment and Mineral Processing, Ostrava, June 31-2, 2007 . Veiskarami, Aghil, Mohammad Noue Parast, sead zia aldin shafahi tonkaboni, and mehdi gharabaghi.

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(PDF) Effect of microwave system location on floatability ...

The present work aims at investigating the effect of microwave local positions (i.e. before crushing (BC), after crushing (AC) and after milling (AM)) on microwave-assisted flotation of chalcopyrite and pyrite in a porphyry copper complex deposit.

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Major Mines Projects El Cubo Mine

Primary economic mineralization at El Cubo is gold and silver. Base metal values are generally absent, except for small amounts of chalcopyrite. El Cubo appears to be a low sulfidation system with pyrite but no arsenopyrite. The silver-rich veins, such as Villalpando, contain quartz, adularia, pyrite, acanthite, naumannite and native gold.

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(PDF) Heterocoagulation of chalcopyrite and pyrite ...

Chalcopyrite and pyrite heterocoagulate in the acidic medium, i.e. at pHb5.5, but do not coagulate in the alkaline medium in either the absence or the presence of DTP and TC flotation collectors. ! Selective flotation of chalcopyrite from pyrite is possible at pH=10 and is impossible at pH=4. !

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Chalcopyrite (Cu) Sphalerite (Zn) Separation by Flotation

Apr 14, 2016  This, coupled with the activating effect of copper sulphate on both the zinc and pyrite, presents a difficult selective flotation problem. Typical of such an ore is the following analysis: Copper 3.78%; Sulphur 42.38%; Zinc 12.45%; Gold 0.01 oz/ton; Iron 32.84%; Silver 1.50 oz/ton; Insoluble 8.50%

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Developing a Bulk Circuit Suitable for Chalcopyrite Pyrite ...

A simpler flotation circuit with lower operating and capital costs for treatment of such copper-gold-pyrite ores with an elevated pyrite head assay was sought in this work. After characterizing the ore, the objective was to apply bulk rougher flotation of both the copper minerals and pyrite for the copper-gold-pyrite ore at natural pH.

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Effect of organic depressant lignosulfonate calcium on ...

Oct 01, 2009  The flotation tests of single mineral show that LSC can depress the flotation of pyrite in a certain pH range, but it has little effect on chalcopyrite flotation. Flotation separation of a mixture of chalcopyrite and pyrite can be completed to obtain a copper concentrate grade up to 24.73% with a recovery of 80.36%.

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The flotation of gold, uranium, and pyrite from ...

The Witwatersrand reefs contain gold, uranium, and pyrite in the following average concentrations: 0,001 per cent, 0,02 per cent, and 1,7 per cent respectively. The paper discusses t~e flotation of pyrite to produce a s,ulphide concentrate, reviews work done on the production

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Pyrite Depressant - Froth Flotation (Sulphide Oxide ...

When the concentration in the solution suppresses chalcopyrite! Of course, there are other depressants for pyrite (more selective). The world of the flotation reagents has changed. Now there are a lot of good new reagents on a commercial scale. Aeration - The surface of the pyrite

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pyrite in zinc ore flotation mar

In this study, chitosan polymer was tested as a potential selective green depressant of pyrite in the bulk flotation of galena (PbS) and chalcopyrite (CuFeS 2) from sphalerite (ZnS) and pyrite (FeS 2) using sodium isopropyl xanthate as a collector and 4-methyl-2-pentanol (MIBC) as a frother. Flotation tests were carried out in a D12-Denver ...

More

Pyrite composition and ore genesis in the Prince Lyell ...

May 01, 1996  The Prince Lyell copper-gold-silver deposit occurs in the late Cambrian Mt Read Volcanics, at Queenstown, Tasmania. Steeply plunging, broadly conformable lenses of disseminated and stringer pyrite-chalcopyrite mineralisation occur in quartz-sericite-chlorite rocks derived from intense alteration of predominantly felsic lavas and volcaniclastic rocks.

More

Journal of Mining Sciences 2014 number 6

It is found that selective gold recovery from gold-bearing material in flotation with MTH and ETH is conditioned by a number of factors that accelerate formation of low solubility compounds on the surface of gold particles. ... flotation, galena, chalcopyrite, sphalerite, xanthate ... which enables selective flotation of pyrite and arsenopyrite ...

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Simon (Xumeng) Chen - Research Fellow - The University of ...

May 14, 2014  I am an experienced and self-motivated project metallurgist and process engineer. I have strong experience and expertise in grinding and flotation, especially, grinding circuit survey and simulation, application of high-chromium media, copper/gold flotation, pyrite depression, management of gangue minerals in flotation (e.g. clay, talc), flotation reagents, flotation of fine particles, and ...

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Frontiers Effect of Grinding Media on Grinding-Flotation ...

Grinding media have significant influence on the flotation of chalcopyrite and pyrite. This effect is mainly related to the change in the surface properties of chalcopyrite and pyrite. This paper investigates the influence of steel ball and nano-ceramic ball grinding on the floatability of chalcopyrite and pyrite. Flotation results, as well-scanning electron microscopy (SEM), X-ray ...

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chalcopyrite ore flotation

chalcopyrite flotation mining ihop-coupons. mining of chalcopyrite Industries and Professions Mining Where is chalcopyrite ore The influence of pyrite content on the flotation of chalcopyrite . Copper ore ... Inquire Now; Copper activation option for a pentlanditepyrrhotite ...

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The role of sodium sulfide in the flotation of pyrite ...

Abstract In copper-gold flotation plants, pyrite which is depressed in copper flotation is often floated subsequently with the addition of sodium sulfide (Na2S) to recover the associated gold. For the first time, this study investigated the role of Na2S responsible for the flotation of pyrite depressed in chalcopyrite flotation through flotation tests and Cyro-XPS (X-ray photoelectron ...

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Recommended Methods of Reduction, Neutralization, Recovery ...

The "porphyry coppers" are mineralized zones in granitic porphyries and schists. The principal copper mineral is chalcocite, which occurs as grains and veinlets in the country rock. Pyrite, chalcopyrite, and magnetite are the principal metallic associates; quartz and

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