copper molybdenum flotation

Copper–molybdenum ores flotation in sea water

2013-11-1 Laboratory rougher flotation tests were conducted with two samples of Cu–Mo ores in fresh water and in sea water as a function of pH. In both cases Cu recoveries were slightly lower in sea water than in fresh water for a wide range of pH (pH 7–12). Flotation of molybdenite was however strongly depressed in sea water at pH higher than 9.5.

Flotation separation of copper–molybdenum sulfides using

2015-11-1 1. Introduction. The selective separation of copper–molybdenum sulfide minerals by flotation mostly relies on the use of various depressants. Sodium hydrosulfide, sodium sulfide, cyanide and Noke’s reagent (thiophosphorus or thioarsenic compounds) are routinely used as the selective depressants of chalcopyrite (Bulatovic, 2007, Pearse, 2005, Prasad, 1992, Yin et al., 2010), the main copper

Flotation separation of copper–molybdenum sulfides using

Chitosan, a natural biodegradable polymer, was studied as a selective depressant in copper–molybdenum sulfide separation by flotation. Although chitosan depressed both molybdenite and chalcopyrite in single mineral flotation, selective flotation was achieved during the flotation of molybdenum-bearing copper sulfide concentrate at pH 6; the recovery of molybdenum in the froth

A study of mechanisms affecting molybdenite recovery in

Molybdenite flotation in the bulk copper/molybdenum flotation circuit at Kennecott Utah Copper was studied by means of a combination of plant metallurgical surveys, laboratory flotation tests, mineralogical analysis (QEM-Scan), surface analysis (ToF-SIMS) and contact angle measurements.

Copper-Molybdenum Ores

2013-9-10 Recovery of copper is by standard flotation reagents identified in the copper ore flotation description. Molybdenum will float naturally with the copper but can be crowded in the froth by the copper mineralization and use of a moly collector (such as diesel oil, kerosene, refined oils, pine oil or xanthate ester) enhances its floatability.

Copper-Molybdenum ores Danafloat

Recovery of copper is by standard flotation reagents identified in the copper ore flotation description. Molybdenum will float naturally with the copper but can be crowded in the froth by the copper mineralization and use of a moly collector (such as diesel oil, kerosene, refined oils, pine oil or xanthate ester) enhances its floatability.

An investigation of the factors affecting the recovery of

2008-11-1 Bulk flotation molybdenum recoveries are consistently lower than that of copper as well as being far more variable. The objective of the work presented in this paper was to determine, and where possible prioritize and address some of the factors that contribute to the molybdenum recovery being lower than copper in the bulk flotation circuit at

INVESTIGATION OF EFFECTIVE PARAMETERS FOR

2014-5-13 copper–molybdenum flotation, and reviews most of the published applications. Section 2 gives a description of the industrial plant briefly. The materials and methods are introduced in Section 3. Finally, Section 4 analyzes the effect of some of the factors on the flotation of molybdenum and copper.

(PDF) Selective separation of copper-molybdenum sulfides

The flotation separation of copper-molybdenum sulfides general ly re lies on the use of . toxic and hazardous depressants such as cyanides, sodium sulfide/hydrosulfide, Noke’s .

Molybdenum Ore Processing by Flotation

2016-5-5 This molybdenum flotation circuit, based on 250-500 tons per 24 hours is designed for low-grade molybdenum ore having high-grade streaks and with pyrite-quartz gangue.It is also basically sound for many other friable sulphide ores, such as antimony, silver and even some lead ores. The basic ideas stressed in this moly flotation

Molybdenite flotation from copper/molybdenum

2012-6-18 copper flotation circuits and were taken before entering the molybdenum circuit. The Morenci copper/molybdenum concentrate analyzed 0.2%-0.4% Mo and 28%-33% Cu, while the grade of the Copperton copper/molybdenum concentrate was 2.5%-4.1 % Mo and 32%-34% Cu. The concentrates were received at 20%-35% solids. The particle size data show that the

Molybdenite flotation from copper/molybdenum

1990-11-1 The bulk copper/molybdenum feed generally varies from 0.2% Mo to 1.0% Mo, and with traditional reagents the single-stage rougher flotation recovery of molybdenite varies between 40% and 90% at a concentrate grade of 5% to 10% Mo. With ozone conditioning for copper depression, however, improved separations appear to be possible, as demonstrated

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

Nitrogen Gas Molybdenum Flotation from Copper

2018-9-3 The copper concentrator produces 1050 mt/day of bulk Cu-Mo concentrate averaging 27% Cu and 0.6% Mo. Molybdenum plant feed is thickened to 62% solids and stored in two 150 cubic meter tanks. Two identical flotation circuits are fed from a

Copper-Molybdenum Ores

Estimation of Copper and Molybdenum Grades and

2016-7-28 recognized the effects of different operational conditions and feed characteristics on the flotation process, can predict copper and molybdenum grades and their recoveries. 4. Result and Discussion A back propagation feed forward neural network with two hidden layers was constructed for modeling of the industrial flotation process.

INVESTIGATION OF EFFECTIVE PARAMETERS FOR

(PDF) Selective separation of copper-molybdenum sulfides

The flotation separation of copper-molybdenum sulfides general ly re lies on the use of . toxic and hazardous depressants such as cyanides, sodium sulfide/hydrosulfide, Noke’s .

Effects of Collectors and Frothers on Copper and

2019-8-2 sodium ethyl xanthate for molybdenum and copper flotation, respectively and X-133 frother. In an attempt to increase coarse particle recovery, stronger collectors (potassium amyl xanthate, Aero 249 and Aero 3501) and frothers (FrothPro 618, FrothPro 630

磨矿细度在铜-钼硫化矿异步混合浮选分离工艺中的关键作用研究

2016-9-17 Then copper and molybdenum minerals in the bulk concentrate were separated by a regrinding-selective flotation operation. By optimizing and controlling the grinding fineness for each stage, the flotation index were improved, resulting in a copper concentrate graded 22.85% Cu at 87.17% recovery, and a molybdenum concentrate with grade and recovery of 48.85% and 68.96%, respectively.

Copper and Molybdenum Flotation Process Xinhai

2016-4-19 Copper and molybdenum are accompanying minerals. Almost over 20 percent molybdenum is recovered from copper and molybdenum. [email protected] 0086 15311826765. Language. JJF Flotation, Wemco Flotation