separating flotation copper from pyrite

separating flotation copper from pyrite

Copper and Pyrite Separation by Selective and Sequential ...

2016-4-13 · A copper-pyrite mill in Canada uses the 12-cell No. 21 “Sub-A” Flotation Machine, shown above, for roughing, and a 2-cell No. 21 “Sub-A” Flotation Machine for cleaning to produce a fairly coarse pyrite concentrate ranging from 50-62% minus 200 mesh. Feed at the rate of 230-240 tons per day comes from the tailings of a zinc flotation

US3847357A - Separation of copper minerals from pyrite ...

A process of separating copper minerals from pyrite wherein a flotation concentrate containing copper minerals and pyrite is reground in the presence of lime and subsequently conditioned at a pH of 12.0 or more for a predetermined period sufficient to depress the pyrite, with optional additions of sulf-hydryl collector, cyanide and dispersing agent, and the conditioned pulp is subjected to ...

SEPARATION OF COPPER MINERALS FROM PYRITE -

A process of separating copper minerals from pyrite wherein a flotation concentrate containing copper minerals and pyrite is reground in the presence of lime and subsequently conditioned at a pH of 12.0 or more for a predetermined period sufficient to depress the pyrite, with optional additions of sulf-hydryl collector, cyanide and dispersing agent, and the conditioned pulp is subjected to ...

Investigating the selectivity of a xanthate derivative for ...

2019-9-21 · Separating chalcopyrite, an important copper-containing ore, from pyrite is an important mineral-processing objective. Herein, we report the synthesis of S-hydroxyethyl-O-isobutyl xanthate (HEIBX), a novel surfactant bearing both hydroxyl and thione groups, through the attachment of a hydroxyethyl group to sodium isobutyl xanthate (SIBX), and its first application as a flotation collector

A study on the effect of active pyrite on flotation of ...

2018-6-27 · separate the copper-activated from pyrite along with isobutyl xanthate (Boulton et al., 2001). Polyacrylamide 2001 Using the polyacrylamide leads to depressing the pyrite during the flotation. 3 The special mill was used for controlling the pH for separating chalcopyrite from pyrite (Peng et al., 2003). Chromium grinding medium

Chalcopyrite (Cu) Sphalerite (Zn) Separation by Flotation

2016-4-14 · The Problem with separating Copper from Zinc by flotation The treatment of heavy sulphide ores of copper containing zinc and pyrite is often extremely difficult particularly if soluble copper and sulphates are present. This is usually the case in ore deposits near the surface or in tropical countries where the annual rainfall is quite high.

Pyrite Flotation Separation and Encapsulation: A ...

2021-1-28 · Pyrite flotation separation and encapsulation in tailings dams is proposed as a viable way to chemically stabilize tailings. Characterization of potential acid mine generation in tailings led to an innovative process in which acid-generating pyrite is separated by flotation from the coarse tailings and incorporated into the slime zone.

Study of Flotation Parameters for Copper Recovery from ...

2020-4-1 · grained pyrite , performs interstitial 100-500 microns by size [16]. Intergrowth of pyrite, sphalerite, tennantite and other copper sulphides, difference in their activity and size create the considerable problems in implementation of selective flotation, obtaining conditional copper

The depression of pyrite in selective flotation by ...

2016-10-1 · Pyrite may float due to natural or self-induced hydrophobicity or collector-induced hydrophobicity. Its flotation can also be enhanced by the activation of copper or lead ions emanating from other minerals. Depressants are generally required to selectively depress pyrite.

Recovery of Copper from Ammoniacal Leachates by Ion

2021-4-27 · From the generated pregnant leach solution, it was possible to selectively separate 85% of copper to the foam phase by ion flotation, with sodium dodecyl sulfate (SDS) surfactant, as colloidal copper (II) tetraamine dodecyl sulfate under the optimized conditions: [SDS] total = 5.85 mmol L −1, [EtOH] = 0.5 % (v/v), ttotal = 5 h, flotation stages = 3.

US3847357A - Separation of copper minerals from pyrite ...

A process of separating copper minerals from pyrite wherein a flotation concentrate containing copper minerals and pyrite is reground in the presence of lime and subsequently conditioned at a pH of 12.0 or more for a predetermined period sufficient to depress the pyrite, with optional additions of sulf-hydryl collector, cyanide and dispersing agent, and the conditioned pulp is subjected to ...

SEPARATION OF COPPER MINERALS FROM PYRITE USING

This example demonstrates the effect that the composition of water employed in the flotation pulp has on the recovery of copper, when various reagents are used to depress pyrite and concentrate copper. As shown in Table 1, the salt water employed has considerably higher total dissolved solids content and conductivity than the tap water.

Investigating the selectivity of a xanthate derivative for ...

2019-9-21 · Separating chalcopyrite, an important copper-containing ore, from pyrite is an important mineral-processing objective. Herein, we report the synthesis of S-hydroxyethyl-O-isobutyl xanthate (HEIBX), a novel surfactant bearing both hydroxyl and thione groups, through the attachment of a hydroxyethyl group to sodium isobutyl xanthate (SIBX), and its first application as a flotation collector

Selective depression mechanism of locust bean gum in the ...

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.

Chalcopyrite (Cu) Sphalerite (Zn) Separation by Flotation

2016-4-14 · The Problem with separating Copper from Zinc by flotation. The treatment of heavy sulphide ores of copper containing zinc and pyrite is often extremely difficult particularly if soluble copper and sulphates are present. This is usually the case in ore

Selectively Depress Copper-Activated Pyrite in Copper ...

2021-1-26 · Pyrite depression in the flotation of copper ores is difficult due to the activation of Cu 2+ ions on pyrite surface. In this study, the radical chain reaction involving the redox cycling of Cu(I/II) induced by sodium metabisulphite (MBS) was exploited to selectively depress the flotation of copper-activated pyrite

Pyrite Flotation Separation and Encapsulation: A ...

2021-1-28 · Pyrite flotation separation and encapsulation in tailings dams is proposed as a viable way to chemically stabilize tailings. Characterization of potential acid mine generation in tailings led to an innovative process in which acid-generating pyrite is separated by flotation from the coarse tailings and incorporated into the slime zone.

Copper Lead Concentrate Separation

2015-10-1 · Copper Lead Separation Flowsheet A: A bulk copper and lead flotation, followed by a copper depression reverse. This scheme uses cyanide to depress the copper in the reverse process. With the use of cyanide in the reverse, cyanide was also used in the bulk flotation process to depress sphalerite and pyrite.

Separating arsenopyrite from pyrite - Laboratory Testing ...

2021-8-12 · Separating arsenopyrite from pyrite (2 replies) J. ... There has never been much success in commercially separating arsenopyrite from pyrite by flotation. There are some techniques that have been tried: ... Sulphuric acid can be used to regulate the pH and copper sulphate to active the sulphides. It is necessary to consider a collector such as ...

Study of Flotation Parameters for Copper Recovery from ...

2020-4-1 · grained pyrite , performs interstitial 100-500 microns by size [16]. Intergrowth of pyrite, sphalerite, tennantite and other copper sulphides, difference in their activity and size create the considerable problems in implementation of selective flotation, obtaining conditional copper

SEPARATION OF COPPER MINERALS FROM PYRITE USING

This example demonstrates the effect that the composition of water employed in the flotation pulp has on the recovery of copper, when various reagents are used to depress pyrite and concentrate copper. As shown in Table 1, the salt water employed has considerably higher total dissolved solids content and conductivity than the tap water.

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 selective ...

The flotation separation of sphalerite from pyrite through ...

The bench-scale flotation outcomes showed that TMATT achieved the high-efficient flotation separation and enrichment of copper oxide minerals from the mixed sulfide-oxide copper ore.

Copper Lead Concentrate Separation

2015-10-1 · Copper Lead Separation Flowsheet A: A bulk copper and lead flotation, followed by a copper depression reverse. This scheme uses cyanide to depress the copper in the reverse process. With the use of cyanide in the reverse, cyanide was also used in the bulk flotation process to depress sphalerite and pyrite.

Pyrite depressant useful in floation separation ...

1999-1-5 · The present invention relates to a process for separating pyrite from sulfide ores and coal during flotation separation which comprises the depressing of pyrite with from about 0.05 to 0.75 kilograms per ton of concentrate solids, using a pyrite depressant compounds selected from the group consisting of R1--S (CH 2 ') n PO (OH) 2 (I). where

Effect of organic depressant lignosulfonate calcium on ...

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%. IR analysis shows that LSC and butyl

Selective recovery of copper from ammoniacal leachates

2021-4-29 · Under optimised conditions 86% of Zn and 75% copper were extracted from the microwave-roasted material. From the generated pregnant leach solution, it was possible to selectively separate 85% of copper to the foam phase by ion flotation, with sodium dodecyl sulfate (SDS) surfactant, as colloidal copper(II) tetraamine dodecyl sulfate.

Study of Flotation Parameters for Copper Recovery from ...

2020-4-1 · grained pyrite , performs interstitial 100-500 microns by size [16]. Intergrowth of pyrite, sphalerite, tennantite and other copper sulphides, difference in their activity and size create the considerable problems in implementation of selective flotation, obtaining conditional copper

Optimization of a Copper/Molybdenum Flotation Circuit

2020-6-16 · Optimization of a Copper/Molybdenum Flotation Circuit by Depressing Pyrite from the Rougher Flotation Stage Using Different Scheme of Reagents A thesis submitted in partial fulfillment of the requirements for the degree of Master Of Science in Metallurgical Engineering by Wander A. Valderrama Dr. Carl C. Nesbitt/Thesis Advisor May 2020

EVALUATION OF ORGANIC CARBON SEPARATION

2015-7-3 · a positive role of the pre-flotation stage on organic carbon removal using only frother as the flotation reagent. Keywords: flotation, carbonaceous matter, copper ore Introduction The copper ore located in the for-Sudetic monocline, besides copper and silver, con-tains many other valuable chemical elements. The polymetallic character of the ore