sulphide flotation process

sulphide flotation process

Sulphide Flotation an overview ScienceDirect Topics

The Platsol™ process was originally developed in Canada for the treatment of flotation sulfide concentrate for Polymet Mining Company in Minnesota and subsequently tested on other PGM concentrates. This process involved codissolution of base metals (copper and nickel), gold, and PGMs via addition of chloride to the autoclave.

Thebehaviourofminerals insulphideflotation processes

2009-8-26  Insulphide flotation processes,there aretwo mechanisms bywhich particles aretransferred from theflotation pulptotheconcentrate: adhesiontoairbubblesandnatural flotation, andentrainment inthefroth. Theentrainment mechanism isparticularly important for particles ofnon-sulphide gangue,which donotabsorb collector. Theim-

Principles and practice of sulphide mineral flotation

This paper presents both the fundamentals of sulphide mineral flotation and the practical aspects of sulphide ore flotation. The fundamental aspects of the flotation of sulphide minerals both in the absence and presence of thiol collectors are discussed in relation to their crystal structure, surface chemistry and electrochemical characteristics.

Sulphide Gold Ore Treatment by Leaching and

2016-4-18  Sulphides such as copper or zinc, etc., are present which can be recovered and sold at a profit for specific metal content by shipping direct to the smelter. Removal of refractory material by flotation ahead of cyanide plant. Each of the above gold process

Copper Sulfide Flotation 911 Metallurgist

2016-4-13  Copper Sulfide Flotation Circuit The pulp from the Conditioner is treated in a 10-cell “Sub-A” Flotation Machine and a 4-cell “Sub-A” Flotation machine. Sometimes conditioners are not provided; however, their use insures that reagents are thoroughly

Selective flotation process for separation of sulphide

We claim: 1. A process for the concentration of at least one mono- or multi-metal sulphide mineral containing non-ferrous metal co-existing with pyrrhotite in a sulphide ore or its processed streams, the streams consisting essentially of middlings resulting from previous unit operations; the process comprising subjecting the ore or the streams to froth flotation employing at least one

Division of Sustainable Process Engineering Sulphide

2016-9-30  Oxidation of sulphide minerals takes place when they are exposed to atmosphere and in the grinding process for reducing the particle size suitable for flotation.

REVISITING SULPHIDE MINERAL FLOTATION: A FEW

2012-6-5  complex sulfide flotation and to develop methods to selectively protect the pyrite surface from the deleterious effects of the formation of sulfur-rich/elementary sulfur coatings and/or the collector adsorption [34,35]. The use of NaHSO 3 as a flotation depressant [36,37] is being practiced in selective flotation of sulfide minerals.

(PDF) A Review of the Flotation of Copper Minerals

ammonium sulphide ((NH 4) 2 S) followed by flotation using xant hate or other sulphide collectors [26; 27 ]. Most of earlier research on flotation of oxidised copper minerals

Understanding the effect of sulphate in mining

2021-5-1  Sulphate ions found in high concentrations in mining-process water have a specific effect on the flotation of each sulphide mineral. For example, sulphate ions have been found to depress molybdenite flotation but activate the flotation of sphalerite and pyrite, while for galena their effects are sulphate concentration dependent.

FROTH FLOTATION : RECENT TRENDS Flotation of

2011-12-1  flotation of sulphide minerals. It is established that xanthates decompose in acidic environment and hence, results lower flotation recovery. Through proper control of pulp pH, one sulphide can be selectively floated from other. As regards other reagents used in sulphide flotation

Froth Flotation Process Detailed Explanation With

Sulphide ores can be easily wetted by the oils which will float on water. These minerals are first converted into a fine powder and then mixed with water. After that pine oil is poured into this slurry. Then Air bubbles are created by injecting high-pressure air. Thus the

Mining Industry Copper Sulfide Ore and Flotation

2019-7-9  (7) Arsenic sulfide copper ore The ore has a high content of arsenic, which is mainly in the form of arsenopyrite. Flotation process to solve the problem of copper and arsenic separation, reduce the arsenic content in the copper concentrate as much as possible. 2 Main copper sulfide minerals and

Selective flotation process for separation of sulphide

We claim: 1. A process for the concentration of at least one mono- or multi-metal sulphide mineral containing non-ferrous metal co-existing with pyrrhotite in a sulphide ore or its processed streams, the streams consisting essentially of middlings resulting from previous unit operations; the process comprising subjecting the ore or the streams to froth flotation employing at least one

Flotation of Nickel-Copper Sulphide Ore: Optimisation of

2020-1-8  Abstract-Froth flotation is widely used for concentration of base metal sulphide minerals in complex ores. One of the major challenges faced by flotation of these ores is the ever varying grade and mineralogy. This therefore calls for a continual characterisation and optimisation of flotation parameters such that concentrator performance as a

Flotation Process Water Recycling Investigation for

2017-6-12  Zinc sulfate (ZnSO 4) is well known to selectively depress sphalerite during complex sulphide ore flotation because it deactivates the sphalerite surface by preventing absorption of activating metal ions (Cu 2+) and by the formation of hydrophilic zinc hydroxide layers on the surface (Cao and Liu 2006; Seke et al. 2005).

Flotation SGS

Flotation is an incredibly robust and versatile process that works equally well on mixed sulphide, oxide, silicate and other ores. Using standardized equipment, cutting-edge mineralogy and experienced technical staff, SGS Minerals Services will provide laboratory test programs which are designed to achieve your objectives quickly and efficiently.

Leachox™ Process for flotation concentrates

There are several process alternatives to Leachox™ for the treatment of refractory flotation. Processes such as roasting, pressure oxidation, and bacterial oxidation are all aimed at breaking down the sulphide matrix to liberate gold. Ultra-fine grinding performs the same function particularly where gold is locked in silicates or other minerals.

1 Froth Flotation Fundamental Principles

2009-8-27  no flotation can occur. Contact between particles and bubbles can be accomplished in a flotation cell such as the one shown schematically in Figure 5. Figure 5: Simplified schematic of a conventional flotation cell. The rotor draws slurry through the stator and expels it to the sides, creating a suction that draws air down the shaft of the stator.

Froth Flotation Process Detailed Explanation With

Thus the sulphide ore comes on the top with the froth and oil. The remaining gangue particles which did not dissolve in oil settle down. The foam is removed and taken for further processing. Thus the minerals are separated by the froth -flotation process. This method is extensively utilized for Copper sulphide, lead sulphide and Zinc sulphide.

Selective flotation process for separation of sulphide

We claim: 1. A process for the concentration of at least one mono- or multi-metal sulphide mineral containing non-ferrous metal co-existing with pyrrhotite in a sulphide ore or its processed streams, the streams consisting essentially of middlings resulting from previous unit operations; the process comprising subjecting the ore or the streams to froth flotation employing at least one

FLOTATION OF SULPHIDE ORES DAVID WESTON

Flotation of sulphide minerals from their ores is achieved by a process in which two or more conditioning steps are carried out prior to a froth flotation step. The first step comprises conditioning a pulp of the ore in the presence of at least one alkaline agent selected from a group of agents which is defined in the specification which follows.

Flotation Process in Metal Mining lead, sulphide,

2011-11-10  Flotation Process in Metal Mining lead, sulphide, ores, zinc, oxidized and cent As yet, a sodium sulphide, in 1 per cent solution, has given the best results on oxidized lead ore. The process has an application as much wider than that of cyanidation as cyanida tion was more comprehensive than chlorination. About 30,000,000 tons of ore are

Leachox™ Process for flotation concentrates

Leachox™ Process for flotation concentrates. The Leachox™ process consists of several Maelgwyn proprietary processes linked together including: –. Aachen assisted cyanide destruction. Ultra-fine grinding can assist in the liberation of the sulphide minerals and is used as one of the unit process steps in the Leachox process.

Sulphate Removal from Flotation Process Water Using Ion

2020-8-20  Sulphate Removal from Flotation Process Water Using Ion-Exchange Resin Column System ˙Ilkay Bengü Can *,Özlem Bıçak, Seda Özçelik, Metin Can and Zafir Ekmekçi It is known that flotation of sulphide minerals can lead to an increase in sulphate concentration in process water. When these two components are in high levels, gypsum

CANATUAN CU/ZN FLOTATION METALLURGY

2015-11-12  The second phase of the mining operation required construction and development of a sulphide flotation processing plant. The project began in early 2007 and was commissioned in November 2008. The plant was initially designed to process high Cu-low Zn ores (with Cu to Zn ratio > 5:1) to produce marketable copper concentrate only.

Telfer Project Process Plant Design

sulphide minerals and pyrite using flotation for some ores in the initial years of operation. These ores principally have a low pyrite content. The high copper:sulphur assay ratios allow the use of bulk sulphide flotation rather than the differential sulphide flotation process suited to the majority of the mined ore.

1 Froth Flotation Fundamental Principles

2009-8-27  flotation rate, particle size recovery, air flow, pulp density, etc.) As a result, it is difficult to study the effects of any single factor in isolation, and compensation effects within the system can keep process changes from producing the expected effects (Klimpel, 1995). This makes it