arsenide depression in flotation of multi sulfide minerals

The flotation of gersdorffite in sulphide nickel systems ...

Data are presented here from a single mineral flotation investigation into the flotability of niccolite (NiAs), one of the key nickel arsenide minerals present in nickel sulphide ores in Australia ...

The flotation of niccolite — A single mineral study ...

Feb 19, 2010· 1. Introduction. The principal nickel mineral in most nickel sulphide ores is pentlandite ((Fe,Ni) 9 S 8), which is recovered primarily by froth flotation.Pentlandite is nearly always associated with pyrrhotite, Fe 1 − x S, and is often associated with chalcopyrite, CuFeS 2, and other iron and nickel sulphides and arsenides.Arsenic present can occur in a range of minerals including ...

US7004326B1 - Arsenide depression in flotation of multi ...

A mineral separation process includes wet-grinding the ore to liberation of minerals, oxidizing the slurry using air, hydrogen peroxide or other oxidants and floating the valuable minerals at a pH...

The flotation of niccolite — A single mineral study ...

Data are presented here from a single mineral flotation investigation into the flotability of niccolite (NiAs), one of the key nickel arsenide minerals present in nickel sulphide ores in Australia ...

Rejection of arsenic minerals in sulfide flotation — A ...

The separation of valuable sulfide minerals, like galena [3,4], chalcopyrite [5], sphalerite [6,7] and pyrite [8,9] from arsenopyrite is very important because arsenic is a penalty element in ...

Antimony-Containing Complex Multi-Metal Ore Beneficiation ...

Sep 17, 2013· For antimony-containing complex multi-metal minerals, frequently with more minutes heavy non-ferrous sulfide: FeAsS, AsS, As2S3 and other arsenic sulfide minerals; galena lead sulphide minerals; sphalerite zinc sulfide minerals; cinnabar and other foods containing mercury sulfide minerals and so on.Sometimes have significant economic value associated oxide minerals …

US3426896A - Flotation of bulk concentrates of molybdenum ...

US3426896A US481420A US3426896DA US3426896A US 3426896 A US3426896 A US 3426896A US 481420 A US481420 A US 481420A US 3426896D A US3426896D A US 3426896DA US 3426896 A US3426896 A US 3426896A Authority US United States Prior art keywords molybdenum copper flotation collector isothiouronium Prior art date Legal status (The legal status is an …

Rejection of arsenic minerals in sulfide flotation — A ...

Oct 01, 2009· Selective flotation of arsenic minerals can be achieved through pre-oxidation of flotation pulp, E h control during flotation and the use of selective depressants/collectors. To selectively oxidize arsenic or non-arsenic minerals prior to flotation, oxidizing agents, such as hydrogen peroxide, and aeration conditioning have both been applied effectively.

carbonate depression in flotation

Solution chemistry of carbonate minerals and its effects ... Jun 30, 2017· Abstract. The effects of carbonate minerals (dolomite and siderite) on the flotation of hematite using sodium oleate as a collector were investigated through flotation …

Beneficiation of arsenic bearing complex sulphide ore by ...

Copper concentrate assayed 5.03% As since the major copper minerals were in tennantite form (copper arsenic sulphide mineral). In flotation tests, non-toxic reagents such as metabisulphite, caustified starch, and activated carbon were used to depress minerals …

depression carbonate depression in flotation

hence depression of the gangue minerals in the flotation of sulphides from an artificial pyrite-quartz mixture. Flotation . of . any given mineral is intimately bound up with the degree of dispersion or flocculation of that mineral in the pulp and it may be aaid(l4) that flotation is not (14) Wark I.i. Principles of Flotation.

Arsenide depression in flotation of multi-sulfide minerals ...

Feb 28, 2006· This depressant suite effectively depresses the flotation of arsenide minerals with minimal effect on the valuable minerals. The polyamine is preferably TETA. The oxidant is preferably air or hydrogen peroxide. The sulfur containing species is preferably sodium sulfite. The collector is …

Opper Refining Flotation Machine For Mining

Opper Refining Flotation Machine For Mining. Production capacity : 0.18 - 20m³/min. Power: 1.1 - 1.5 kw. Environmental Friendly. The flotation machine is driven by V-belt drive motor rotating impeller to …

ARSENIC CONTENT IN THE LEAD FLOTATION …

Arsenic is considered as a harmful el-ement in selective concentrates of lead and zinc [1,2]. The llowable arsenic con-tent in these concentrates is expressed in tenth parts of a percent [4]. One of the most important arsenic minerals is arsenopyrite (FeAsS) which is often major gangue mineral in base metal-lic sulfide …

carbonate depression in flotation

Solution chemistry of carbonate minerals and its effects ... Jun 30, 2017· Abstract. The effects of carbonate minerals (dolomite and siderite) on the flotation of hematite using sodium oleate as a collector were investigated through flotation tests, supplemented by dissolution measurements, solution chemistry calculations, zeta-potential measurements, Fourier transform infrared (FTIR ...

Sulphide Flotation - an overview | ScienceDirect Topics

With increasing arsenic content, the surface oxidation of pyrite is greatly accelerated to the point where depression by surface oxidation overwhelms activation. This pyrite requires heavier collector loadings in order to float. If the oxidation is too fast, in the absence of activators irreversible depression takes place.

EFFECT OF pH ON SURFACE CHARACTERISTICS AND …

gangue minerals from lead oxide minerals (Ejtemaei et al., 2012). In this study, micro-flotation tests, dissolution experiments, SEM-EDS and XPS studies of sulfide-treated cerussite were carried out to investigate the effect of pH on surface characteristics and flotation …

US4904374A - Froth flotation - Google Patents

A method of selectively recovering an arsenopyrite, pyrrhotite or like mineral from a material containing such a mineral and pyrite which includes the steps of providing a slurry of the material, adding a dialkyl (C 3-8 )-dithiophosphate to the slurry, passing a gas through the slurry to cause the mineral to be carried to the surface of the slurry and report in a first float concentrate ...

The flotation of gersdorffite in sulphide nickel systems ...

Oct 01, 2009· 1. Introduction. The presence of arsenic complicates the refining of nickel matte and nickel concentrates containing high levels of arsenic can therefore sometimes be difficult to market (Toguri, Babaie and Sridhar, 1995).In nickel sulphide ores, arsenic can occur in a range of minerals including gersdorffite (NiAsS), niccolite (NiAs), maucherite (Ni 11 As 8), rammelsbergite (NiAs 2 ...

MX2016009820A - Process for separation of at least one ...

A process is provided for separation of at least one metal sulfide from a mixed sulfide concentrate. The process may comprise: subjecting the mixed sulfide concentrate to flotatio

Arsenide Depression In Flotation Of Multi Sulfide Minerals

Jan 26 2013 Arsenide depression in flotation of multi sulfide minerals Nickel mining particularly affected by high arsenic content. Nickel occurs number minerals ammonium sulfide barium sulfide hydrosulfides polysulfides More detailed

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 …

Depression of lead-activated sphalerite by pyrite via ...

Jun 15, 2020· Complex sulfide ores are typically mixtures of various sulfide minerals like sphalerite (ZnS), chalcopyrite (CuFeS 2), galena (PbS), pyrite (FeS 2), and barite (BaSO 4) and processed by selective flotation to recover target-sulfide minerals like chalcopyrite and sphalerite.Some complex sulfide ores, however, contain anglesite (PbSO 4), a mineral with relatively high solubility, that ...

US2805936A - Leaching of arsenide ores - Google Patents

US2805936A US450276A US45027654A US2805936A US 2805936 A US2805936 A US 2805936A US 450276 A US450276 A US 450276A US 45027654 A US45027654 A US 45027654A US 2805936 A US2805936 A US 2805936A Authority US United States Prior art keywords nitric acid slurry arsenic metal value dissolved Prior art date Legal status (The legal status is an assumption and is …

Minerals | Free Full-Text | Oxidative Depression of ...

Sulfide-ore-bulk flotation followed by selective copper flotation with the addition of arsenic sulfide depressants can also separate copper and arsenic ores via conventional flotation . Flotation of arsenic separation from non-arsenic copper minerals …

inorganic depressants for copper molybdenum ores flotation

molybdenum separation; 2) the sequential flotation of the copper and molybdenum sulfide minerals. Because the sequential separation usually requires large reagent dosages and complex flowsheet, the bulk copper− molybdenum flotation …

Activation mechanism of lead ions in the flotation of ...

Jan 15, 2020· Sphalerite is commonly associated with other metal-sulfide minerals, and is usually depressed with zinc sulfate (ZnSO 4) prior to the preferential flotation of other sulfide minerals with excellent floatability.In subsequent processing, ZnSO 4-depressed sphalerite activation is necessary for the maximum recovery of zinc resources.In this work, lead nitrate (Pb(NO 3) 2) was used to activate …

how to use magnetic separation sulfida gold ore

how to use magnetic separation sulfida gold ore Patent US7004326 - Arsenide depression in flotation of multi-sulfide Feb 28, 2006 A mineral separation process includes wet-grinding the ore to liberation of minerals…

Sulfidisation Promotion Effect of Ammonium Sulfate on ...

This paper presents the sulfidisation promotion effect of ammonium sulfate on the sulfidisation flotation of both malachite and copper oxide ores. Copper oxide ores are commonly difficult-to-float due to its molecular structure, and adding sodium sulfide as activator is necessary; however, its dosage to the flotation …

COMPOSITIONS AND METHODS FOR SELECTIVE SEPARATION OF ...

A method for selectively separating value sulfide minerals from non-value sulfide minerals in a froth flotation process for the recovery of said value minerals from an ore or concentrate containing said value and non-value minerals, the method comprising: adding to one or more stage of the froth flotation …

Flotation separation of copper sulphides from arsenic ...

Nevertheless, the similar flotation properties and surface chemistry of copper sulfides and copper arsenic phases result in the limitations of the separation of arsenic in the slag flotation ...

Flotation separation of carbonate from sulfide minerals, I ...

Due to the natural hydrophobicity of sulfide minerals, flotation separation is the best practical method to separate them from gangue minerals. ... in this study using a multi-pronged experimental ...

Arsenic Minerals Flotation

Arsenic Minerals Flotation. Mineral Processing Equipment: arsenic minerals flotation - A type of mining equipment that can trigger the development and change of the beneficiation technology industry.The main core machines are ball mills, rod mills, flotation machines, magnetic separators, etc.