• Acidic medium flotation separation of chromite from

    It was demonstrated that, when Naoleate is used as collector, chromite, olivine and serpentine can be separated at pH 2.5 and/or pH 5.5 when employing ethylenediamine tetraacetate (EDTA) on previously deslimed material. This approach ensures flotation concentrates with a Cr 2 O 3 content better than 50% with a recovery of more than 75%.

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  • 1. Introduction Hindawi Publishing Corporation

    The results of flotation test and theoretical calculation together with SEM analysis have proved that the fine magnesite, dolomite, and serpentine particles can decrease the float recovery of quartz by masking on its surface, thus reducing the hydrophobicity of the quartz surface and preventing quartz from being collected by DDA.

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  • Flotation of Chromite as PreTreatment of Olivine Before

    Flotation using G30 Milled olivine and serpentine allows enrichment ratio of 1.25 to 1.5 only in the first half of the flotation test. Chromite separation from GL10 olivine, which is the finest mineral was observed to be of nil efficiency.

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  • (PDF) Flotation of chromite and serpentine

    The best chromite concentrates containing 42.1% Cr2O3 were obtained with a 76% recovery from a synthetic mixtures of chromite and serpentine under optimum test conditions, that is at pH 10.5, 5.10

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  • v115n8a4 Effects on entrainment of serpentines by

    Serpentine minerals, which have the generalized composition (Mg,Fe)3Si2O5(OH)4, can be easy to crush and grind due to their convoluted and bent layered structures. These serpentines can hinder the enrichment of some metallic minerals and dilute their concentrates by entrainment during flotation. The resulting high pulp viscosities, slime

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  • Surface Charge Characterization and Flotation of an

    Surface Charge Characterization and Flotation of an Ultramafic NiOre Salah Uddin Ore flotation: test with higher feed concentration 186 8.2.3. Microflotation using ionic collectors 187 serpentine (the main gangue and one of the MgO minerals). As a contribution to meeting

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  • The effect of quartz on the flotation of pyrite depressed

    The finer the serpentine slime is, the lower the pyrite recovery will be. Quartz particles do not interfere with pyrite flotation. However, the addition of quartz particles increases the adsorption of collector on pyrite surface and limits the detrimental effect of serpentine on pyrite flotation. The finegrained quartz is more effective.

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  • Laboratory Flotation Testing Mineral Processing & Metallurgy

    Metallurgical ContentPlanning the lab flotation test:Flotation ReagentsFlotation Equipment PreparationSample OriginBatch Laboratory Test PlantContinuous Laboratory Test Plant Batch Laboratory Flotation Testing starts from the 3 fundamental types of flotation processes or methods which can be classed as either: Bulk flotation Differential flotation Sequential flotation While all flotation

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  • The effect of quartz on the flotation of pyrite depressed

    The finer the serpentine slime is, the lower the pyrite recovery will be. Quartz particles do not interfere with pyrite flotation. However, the addition of quartz particles increases the adsorption of collector on pyrite surface and limits the detrimental effect of serpentine on pyrite flotation. The finegrained quartz is more effective.

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  • The flotation separation of pyrite from serpentine using

    The hydrophilic serpentine slimes can reduce the adsorption of collector and decrease the hydrophobicity of sulfide minerals [8,9]. In addition, the serpentine entrained in flotation concentrate will also lower the grade of valuable minerals and cause problems in further smelting process [10,11].

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  • cromite ore flotation opass.eu

    Froth flotation was used to upgrade this chromite ore. Oleic acid was used as collector. Several operating parameters influencing the floatability of the Sudanese

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  • Acidic medium flotation separation of chromite from

    It was demonstrated that, when Naoleate is used as collector, chromite, olivine and serpentine can be separated at pH 2.5 and/or pH 5.5 when employing ethylenediamine tetraacetate (EDTA) on previously deslimed material. This approach ensures flotation concentrates with a Cr 2 O 3 content better than 50% with a recovery of more than 75%.

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  • The Importance of pH in Flotation

    In flotation, pH control is a vital method to control selective mineral separation. A standard depressant that is used is an Alkali. An Alkali is any substance that when mixed with Acid will neutralize each other and form a new chemical substance called a BASE. This is very important. The ore may be either alkaline or Acidic. To have a positive control over flotation, it is necessary to be

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  • olivine flotation tailing eohfs.co.za

    Flotation of Chromite Ore. Petrographic examination of the pH flotation products showed olivine to be present in the concentrate while serpentine remained in the tailings. To increase the selectivity of Mouat ore to amine flotation of chromite, a selective olivine depressant must be found. Flotation of €????

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  • clin path lab parasitology Flashcards Quizlet

    Start studying clin path lab parasitology. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Search. (in the same serpentine pattern used when reading a blood smear) the centrifugation method is also a flotation test method. simple flotation.

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  • v115n8a4 Effects on entrainment of serpentines by

    Serpentine minerals, which have the generalized composition (Mg,Fe)3Si2O5(OH)4, can be easy to crush and grind due to their convoluted and bent layered structures. These serpentines can hinder the enrichment of some metallic minerals and dilute their concentrates by entrainment during flotation. The resulting high pulp viscosities, slime

    Get price
  • Surface Charge Characterization and Flotation of an

    Surface Charge Characterization and Flotation of an Ultramafic NiOre Salah Uddin Ore flotation: test with higher feed concentration 186 8.2.3. Microflotation using ionic collectors 187 serpentine (the main gangue and one of the MgO minerals). As a contribution to meeting

    Get price
  • Utilization of Ncarboxymethyl chitosan as selective

    Jun 10, 2017 · Utilization of Ncarboxymethyl chitosan (NCMCh) to limit the detrimental effect of serpentine on the flotation of pyrite is presented in this work.Flotation results show that the presence of hydrophilic serpentine slimes results in lower recoveries of the valuable pyrite. Utilization of Ncarboxymethyl chitosan can limit the detrimental effect of serpentine on the flotation of pyrite.

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  • Minerals Free FullText A Novel Method to Limit the

    A novel method to limit the adverse effect of fine serpentine on the flotation of pyrite was investigated in this paper. The flotation results showed that coarser serpentine possessed a weaker depression effect on the pyrite flotation process, and the use of KAl(SO4)2䞈H2O could efficiently limit the detrimental effect of fine serpentine on pyrite with a maximum increase of pyrite recovery

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  • Dissolved Air Flotation Theory

    Dissolved Air Flotation (DAF) is the process of removing suspended solids, oils and other contaminants via the use of air bubble flotation. Air is dissolved into water, mixed with the wastestream and released from solution while in intimate contact with the contaminants.

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  • MerCruiser Serpentine Belts NuWave Marine

    OEM MerCruiser V6/V8 Alpha Serpentine Belt 861758Q 57861758 57861758Q Replaces: 861758Q 57861758 57861758Q Engines Models May Include:96+ 4.3,50,5.7 With standard cooling and 5 3/4 inch pulley Please confirm fitment of MerCruiser parts with your

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  • US4311584A Amine flotation of chromite from acidic pulps

    In one such method as disclosed by S. Sobieraj et al. in Inst. Min. Metall., Trans. Sect. C, 1973 82 (December) 207, 13 chromite ore containing serpentine and olivine is subjected to flotation at an initial pH of 12.0 with an amine collector for the removal of serpentine followed by flotation of chromite at a pH of 3.0 with the same amine

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  • Impact of the Fine Minerals Particles on Pentlandite Flotation

    surfaces. Flotation tests were performed to understand the impact of the fine gangue minerals on pentlandite recovery. The zeta potential distribution measurements indied an attractive interaction between pentlandite and serpentine, and a repulsive interaction between pentlandite with both olivine and

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  • Froth Flotation of Ultramafic Nickel Ore No Pre

    Apr 25, 2010 · Froth Flotation of Ultramafic Nickel Ore No Pretreatment challenge is posed by the serpentine polymorph chrysotile, the dominant part of this ore. in turn reduces selectivity and

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  • Dispersive effect of low molecular weight sodium

    the accuracy of the flotation tests, the errors of the recovery were found to be within 2% after at least five tests under each condition, and the average values were reported. Batch flotation tests The bulk of laboratory test work was carried out in batch flotation cells (XFD63) with 500 g sample.

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  • olivine flotation cell eohfs.co.za

    The flotation tests were performed in a XFD63 flotation cell (selfaeration) with a flotation volume of L, using an agitation speed of 2800 r/min. The solid concentration in the flotation cell was 35% by weight. The pulp pH was maintained at 9 owing to the buffer effect of the minerals within the pulp. During the conditioning, collector

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  • Flotation Characteristics of Brucite and Serpentine

    In alkaline condition, experiments were taken to investigate the influence of different regulators on the flotation behaviors of brucite and serpentine when sodium oleate was the collector. The regulators used in experiments included sodium silie, tannin and calcium lignosulphonate. The results showed that sodium silie had a great effect on the flotation.

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  • Electrokinetic and Flotation Investigations of Surface

    Electrokinetic and Flotation Investigations of Surface Properties Modifiion of Magnesite and Serpentinite Using Biosurfactants and Surfactants Agnieszka DidykMucha1, Izabela Polowczyk1, Zygmunt Sadowski1 and Jan Kudelko2 1. Chemical Engineering Department, Wroclaw University of Technology, Wroclaw 50370, Poland 2.

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  • BALMORAL REPORTS POSITIVE METALLURGICAL RESULTS

    grind of 80% ("p80") passing 100 µm vs. MC1 as a result of the lower percentage of serpentine in MC2. This suggests some variability in hardness within the Zone and additional grinding tests have been recommended by Blue Coast to better understand this variation. Flotation Locked Cycle Test Results Flotation test work indied that a

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  • Flotation of NiPentlandite from Serpentinite Gangue

    Flotation of low grade Ni ores with serpentinite host rock tend to yield low recoveries of Ni with high MgO contents in the concentrate. The recovery can be enhanced by optimizing the subprocesses in the pulp and in the froth. The new OF100 flotation cell has been designed to be adaptable to different feed fineness (Coarse, Fine). Due to the properties of the serpentine group minerals many

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  • Electrokinetic and Flotation Investigations of Surface

    Electrokinetic and Flotation Investigations of Surface Properties Modifiion of Magnesite and Serpentinite Using Biosurfactants and Surfactants Agnieszka DidykMucha1, Izabela Polowczyk1, Zygmunt Sadowski1 and Jan Kudelko2 1. Chemical Engineering Department, Wroclaw University of Technology, Wroclaw 50370, Poland 2.

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  • clin path lab parasitology Flashcards Quizlet

    Start studying clin path lab parasitology. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Search. (in the same serpentine pattern used when reading a blood smear) the centrifugation method is also a flotation test method. simple flotation.

    Get price
  • Flotation of NiPentlandite from Serpentinite Gangue

    Flotation of low grade Ni ores with serpentinite host rock tend to yield low recoveries of Ni with high MgO contents in the concentrate. The recovery can be enhanced by optimizing the subprocesses in the pulp and in the froth. The new OF100 flotation cell has been designed to be adaptable to different feed fineness (Coarse, Fine). Due to the properties of the serpentine group minerals many

    Get price
  • Interaction between mineral particles surfaces during

    Flotation tests were carried out in a mechanical agitation microflotation machine with impeller speed of 1920 r/min. In a single mineral flotation test, the mineral suspension was prepared by adding 2.0 g of single mineral to 30 cm3 of deionized water. In the flotation tests of mixed minerals, the usage of ascharite was 1.0 g.

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    Online shopping from the earth''s biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessories, shoes, jewelry

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  • TABLE OF CONTENT

    of nickel from the serpentine. Since 1981, metallurgical research has been conducted on the property by AMINTECH RESEARCH of Vancouver, and others. Gravity flotation, magnetic concentration, and bacterial and acid leaching techniques have been investigated. This present report outlines the latest work in this evolution and suggests that the

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  • U.S. ARMY CORPS OF ENGINEERS 8 HOUR MOTORBOAT

    H. Serpentine, Slalom, Star and Emergency Stopmaneuvering courses . III. Course Safety. A. PFD''s will be worn at all times on or near the water (No Exceptions). B. Inwater participation shall be voluntary for all students, but is a requirement for completing the course. C. Participants must pass a 100yard swim test while wearing a PFD.

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  • Electrokinetic and Flotation Investigations of Surface

    Electrokinetic and Flotation Investigations of Surface Properties Modifiion of Magnesite and Serpentinite Using Biosurfactants and Surfactants Agnieszka DidykMucha1, Izabela Polowczyk1, Zygmunt Sadowski1 and Jan Kudelko2 1. Chemical Engineering Department, Wroclaw University of Technology, Wroclaw 50370, Poland 2.

    Get price