copper arsenic flotation selectivity

Flotation separation of copper sulphides from arsenic

Nov 01, 2014· The copper selectivity against arsenic was improved significantly although the recovery of copper, silver and arsenic was lower. The difference in floatability of copper sulphide minerals and tennantite appears to increase at finer sizes.

Get Price

Selective Removal of Arsenic from Copper Concentrates

Feb 24, 2019· There is currently no widely accepted industrial process that specifically aims to separate copper and arsenic minerals by flotation. Arsenic bearing minerals such as enargite (Cu 3 AsS 4) are a rich source of copper. Enargite contains 48 wt% of copper, compared to chalcopyrite (CuFS 2) which contains 34 wt% copper.

Get Price

Selective flotation of enargite from copper sulphides in

Oct 01, 2017· The second step is copper flotation from the arsenic separation tail at the air set potential and pH 11 using air to float the copper minerals and produce a low-arsenic high-copper concentrate. The low-arsenic high-copper concentrate can go directly to the smelter without paying any penalty. Download : Download high-res image (261KB)

Get Price

Separation practice of copper arsenic sulfide ore

The separation of copper and arsenic is mainly to solve the separation problem of copper minerals and arsenopyrite, which can be summarized as follows: (1) Highly selective collector. It is very important to enlarge the separation of the two minerals by using selective collectors.

Get Price

Selective separation of Cu, Zn, and As from solution by

The selective precipitation and flotation of copper, zinc, and arsenic ions from dilute aqueous solutions were investigated.

Get Price

BENEFICIATION OF ARSENIC BEARING COMPLEX SULPHIDE

and 77.1% and 38.7%, respectively. Arsenic contents were less than 2000 ppm in the lead and zinc con-centrates. Copper concentrate assayed 5.03% As since the major copper minerals were in tennantite form (copper arsenic sulphide mineral). In flotation tests,

Get Price

Arsenic in Complex Orebodies Ausenco

The selective flotation of enargite from copper sulphides in a complex ore system is discussed in this paper. Methodology and Results. A complex ore system was selected which had various levels of arsenic as enargite. Two ore samples with different arsenic levels, HAS (250 ppm) and LAS (100 ppm), were selected to provide a range of arsenic

Get Price

Selective Removal of Arsenic from Copper Concentrates

Feb 24, 2019· Selective Removal of Arsenic from Copper Concentrates. Aim. To explore and develop improved electrochemically-controlled flotation techniques to separate arsenic bearing copper sulphides from copper and iron bearing sulphides in complex copper ores. There is currently no widely accepted industrial process that specifically aims to separate

Get Price

(PDF) Selective flotation of enargite from copper

[Show full abstract] review focuses on the current state of knowledge in the selective flotation of enargite, commonly found in association with non-arsenic copper sulphide mineralisation. Due to

Get Price

THE USE OF PULP POTENTIAL CONTROL TO SEPARATE

copper and arsenic minerals floated very strongly and there was no selectivity between copper and arsenic. Arsenic separation using pulp potential control If the flotation behavior of tennantite were similar to that of enargite, the most likely pulp potential region for

Get Price

Selective flotation of enargite and chalcopyrite Request PDF

Although the flotation process shows various advantages compared to that of pyrometallurgical and hydrometallurgical processes, selective flotation of arsenic-bearing copper and copper sulfide

Get Price

The Complete Collection of Copper Beneficiation Reagents

The flotation effect of refractory copper-sulfur ore containing secondary copper minerals is better than that with butyl xanthate, but its selectivity is worse. Aerofloat Aerofloat has a weak collection capacity and slow flotation speed for sulphide minerals, but its selectivity is

Get Price

(PDF) PARTIAL ROASTING OF COPPER CONCENTRATE WITH

Since this mineral contain both arsenic and copper, it is not possible to remove the arsenic by selective flotation. Partial roasting is a method to clean the concentrate from arsenic and thereby produce a suitable raw material for the copper smelter. Also mercury is commonly found in copper

Get Price

Technical Development of Impurity Removal in Mineral

The separation of arsenic from copper in a Northparkes copper–gold ore using controlled-potential flotation. International Journal of Mineral Processing 84, 15-24. Smith, L.K., Bruckard, W.J., Davey, K.J., 2009. The flotation behaviour of arsenic-bearing minerals in nickel sulphide flotation systems, Enviromine 2009, Santiago, Chile.

Get Price

Selective Flotation Mineral Processing & Metallurgy

Jun 08, 2017· Who would think that Selective Flotation of copper, gold, zinc or any metal would required that one must be able to feel pain and recognized and/or admit when it hurts. Flotation mass-pull is a process that is often misunderstood; a learner’s mistake made by non-operating types.. You do not need to pump anything in the lab.. In selective flotation, less is more!

Get Price

Separation practice of copper arsenic sulfide ore

Great progress has also been made in the separation process of copper and arsenic in China. For example, in the weak acid medium of pH = 5-7.0, the sulfite lime method is used to suppress arsenopyrite and pyrite, and the selective methyl thiamine and ethyl xanthate are used to flotation copper minerals.

Get Price

Nitrogen-Based Collectors for Sulfide Flotation Tecflote™

Jan 01, 2019· The selectivity seen in the lab is transferred to full scale trial and is clearly seen in the rough flotation where the increase in the rough concentrate grade of 5% after pumping Tecflote S11 directly into the tank cell. The mechanisms for Tecflote’s selectivity towards sulfides are currently under investigation and will be discussed.

Get Price

Barry Wills' Blog: Challenges in copper flotation

Sep 17, 2011· Arsenic-bearing sulfide minerals like tennantite are difficult to separate from other non-arsenic sulphide copperminerals in conventional copper flotation circuits. The most successful approaches to effecting separation appear to be based on selective oxidation techniques and the

Get Price

TACKLING IMPURITIES IN COPPER CONCENTRATES

Friedberg et. al. 2014). However, our interest is not limited to arsenic but extends to other impurities found in copper and nickel concentrates as well. One considers a “typical” copper concentrate as having about 25+% copper and some minor quantity of impurities, preferably rich in precious metals.

Get Price

THE USE OF PULP POTENTIAL CONTROL TO SEPARATE

copper and arsenic minerals floated very strongly and there was no selectivity between copper and arsenic. Arsenic separation using pulp potential control If the flotation behavior of tennantite were similar to that of enargite, the most likely pulp potential region for

Get Price

Study of Flotation Parameters for Copper Recovery from

activity and size created the considerable problems in implementation of selective flotation to obtain conditional copper and zinc concentrates. Since the demand for copper is growing constantly,the need to develop processes and technologies to treat copper resources with high level of arsenic

Get Price

Selective Separation of Cu, Zn, and As from Solution by

Oct 23, 2006· Abstract. The selective precipitation and flotation of copper, zinc, and arsenic ions from dilute aqueous solutions were investigated. Phase separation was accomplished effectively by the dissolved-air technique for the production of fine gas bubbles, and a short-chain xanthate was applied as the collector for copper ions, dialkyldithiocarbamate for zinc, and ferric sulfate for the pentavalent

Get Price

Technical Development of Impurity Removal in Mineral

The separation of arsenic from copper in a Northparkes copper–gold ore using controlled-potential flotation. International Journal of Mineral Processing 84, 15-24. Smith, L.K., Bruckard, W.J., Davey, K.J., 2009. The flotation behaviour of arsenic-bearing minerals in nickel sulphide flotation systems, Enviromine 2009, Santiago, Chile.

Get Price

Arsenic pathways in Copper Mining Sustainability Issues

Further process development and economic modelling is required to better define the selective flotation process that may be incorporated into the project with the required level of confidence. This study provides an overview of the occurrences of arsenic in the full spectrum of activities across copper operations as well as potential

Get Price

Selectivity and power of frothers in copper ore flotation

Selectivity and power of frothers in copper ore flotation 517 The ore was crushed in a jaw crusher to obtain particles smaller than 1 mm in size. Prior to each flotation experiment, the crushed material was wet ground in a steel ball mill. The size distribution of the ore, used as the flotation feed, is presented in Table 1. Table 1.

Get Price

Flotation of the Major Copper Sulphide Minerals An

Jan 01, 2016· The arsenic-signature copper minerals are added to the study, since many copper operations encounter arsenic as a penalty element in the saleable concentrate. It is shown that the addition of arsenic to the copper and iron sulphides alters the semiconductor and electrochemistry properties, and in turn, its flotation characteristics.

Get Price

Optimization of the arsenic removal process from enargite

to obtain the proposed level of arsenic in the air, after smelting copper concentrates produced by a selective flotation procedure applied to the sulfide ore deposits [8]. Having in mind the tendency of copper prices that increased strongly from 2003, due to global copper demands and economic expansion of the BRIC* count-

Get Price

FAQS Solvay

Improved copper and gold selectivity in flash flotation circuits; High selectivity against iron sulfides (e.g., pyrite), unactivated zinc sulfides (e.g. sphalerite) and arsenic minerals (e.g., arsenopyrite). Its unique selectivity may facilitate elimination of the use of sodium cyanide at some operations; Low dosage required; Improved flotation

Get Price

TACKLING IMPURITIES IN COPPER CONCENTRATES

Friedberg et. al. 2014). However, our interest is not limited to arsenic but extends to other impurities found in copper and nickel concentrates as well. One considers a “typical” copper concentrate as having about 25+% copper and some minor quantity of impurities, preferably rich in precious metals.

Get Price

BENEFICIATION OF ARSENIC BEARING COMPLEX SULPHIDE

and 77.1% and 38.7%, respectively. Arsenic contents were less than 2000 ppm in the lead and zinc con-centrates. Copper concentrate assayed 5.03% As since the major copper minerals were in tennantite form (copper arsenic sulphide mineral). In flotation tests,

Get Price

Copper minerals flotation in flotation plant of the

A unique technology of direct selective flotation is in use in flotation plant of the "Rudnik" mine in order to obtain selective lead, copper and zinc concentrates. Technological process is very sensitive to so-called "selectivity" because loss of individual metals through selective concentrates is present. Copper minerals flotation cycle is especially sensitive to selectivity and sometimes

Get Price

Separation practice of copper arsenic sulfide ore

Great progress has also been made in the separation process of copper and arsenic in China. For example, in the weak acid medium of pH = 5-7.0, the sulfite lime method is used to suppress arsenopyrite and pyrite, and the selective methyl thiamine and ethyl xanthate are used to flotation copper minerals.

Get Price

NEW SELECTIVE COLECTOR FOR FLOTATION OF SULFIDE

Boteva A. et al. NEW SELECTIVE COLECTOR FOR FLOTATION Mineralogical characteristic of the assay from the Chelopech deposit The most important economic value of the deposit is determined by the mineral association of copper-arsenic-gold. It is characterized with the high concentration of

Get Price
Best Meat Grinder Wholesale Best Meat Grinder Nd Hand Gulin Mobile Crusher In Dubai

Related Articles