ore flotation chromite

Flotation of Chromite Ore Deslimed chromite ore was floated at pH 15 to 55 using a longchain fattyacid collector and soluble fluoride ions as a silicate depres ore flotation chromite

ore flotation chromite

  • Flotation of Chromite Ore

    Deslimed chromite ore was floated at pH 15 to 55 using a longchain fattyacid collector and soluble fluoride ions as a silicate depressant The Havens method was later modified slightly to permit flotationFlotation Gora Ore Chemical analysis of the chromite mineral prompted investigation of using flotation to produce a concentrate containing 44 to 48 percent Cr2O3 The best results obtained in this phase of the study showed a concentrate grade of 456 percent Cr2O3 at aRecover Chromite by Flotation 911 MetallurgistChromite is one of the main gangue constituents of UG2 ore, 1177 1178 QI Wesseldijk et al making up 20 to 60% by mass of the ore Although the main minerals targeted are the base metal sulphides; pyrrhotite, pentlandite and chalcopyrite (Liddell et al, 1986) a certain amount of chromite reports to the flotation concentrateThe flotation behaviour of chromite with respect to the

  • (PDF) Flotation of chromite and serpentine

    However, especially, NaOleate flotation of a chromite ore containing serpentine instead of olivine is very difficult because both minerals exhibit almost similar surface properties with chromiteChromite is one of the main gangue consituents of UG2 ore and it is essential that the amount of chromite reporting to the concentrate during flotation be minimised since it is detrimental to the subsequent smelting operations It is generally considered that chromite is naturally hydrophilic and only reports to the concentrate by entrainmentThe flotation behaviour of chromite with respect to theFLOTATION BEHAVIOR OF SUDANESE CHROMITE ORES 651 2 EXPERIMENTAL 21 Materials 211Chromite Ore Sample A chromite ore sample about (250 kgs) of low grade ore was collected from Chickay mines, at the Ingassana Hills A high grade chromite ore sample (10Kg) and aFLOTATION BEHAVIOR OF SUDANESE CHROMITE ORES

  • THE FLOTATION OF SOUTH AFRICAN CHROMITE ORES

    Keywords: Flotation, chromite ore, pH, anionic collector, separation index 1 INTRODUCTION Chromite is an iron chromium oxide (FeCr 2 O 4) mineral belonging to the spinel group [1] The only ore of chromium is chromite ore which ferrochromium and metallic chromium are produced from it by extracting processesAbstract The Bureau of Mines investigated column vs conventional flotation of chromite and fluorite ores Finebubble column flotation of deslimed chromite ore produced a 447 % Cr 2 O 3 rougher concentrate at 871 % recovery, whereas conventional flotation produced a 404 % Cr 2 O 3 concentrate at 854 % recovery Column flotation of undeslimed chromite ore also produced results superior toColumn Flotation of Chromite and Fluorite Ores: CanadianKeywords: Flotation, chromite ore, pH, anionic collector, separation index 1 INTRODUCTION Chromite is an iron chromium oxide (FeCr 2 O 4) mineral belonging to the spinel group [1] The only ore of chromium is chromite ore which ferrochromium and metallic chromium are produced from it by extracting processesTHE FLOTATION OF SOUTH AFRICAN CHROMITE ORES

  • Column Flotation of Chromite and Fluorite Ores: Canadian

    Abstract The Bureau of Mines investigated column vs conventional flotation of chromite and fluorite ores Finebubble column flotation of deslimed chromite ore produced a 447 % Cr 2 O 3 rougher concentrate at 871 % recovery, whereas conventional flotation produced a 404 % Cr 2 O 3 concentrate at 854 % recovery Column flotation of undeslimed chromite ore also produced results superior toThe US Bureau of Mines compared column flotation using either fine or coarse bubbles with conventional flotation on a Montana chromite ore On deslimed ore, finebubble column flotation produced a 447% Cr 2 O 3grade rougher concentrate with 87% recovery, compared with 438% and 435% Cr 2 O 3grade rougher concentrates with 85% and 77% recovery for coarsebubble column flotation andColumn flotation of Montana chromite ore | SpringerLinkIt is wellknown that flotation of chromite and serpentine is very difficult, especially in oleate flotation, due to similar surface properties of both minerals and to the ions such as Mg 2+ deriving from the ore and depressing the adsorption of RCOO − ions on the chromite surface Modifying agents may be used to increase selectivityFlotation of chromite and serpentine ScienceDirect

  • Chromite Flotation Froth Flotation (Sulphide & Oxide

    Yes, gravity separation is the way to go in case of chromite If there are other valuable species, eg PGMcontaining minerals, they can be floated first and then tails go to gravity separation Actually chromite flotation should be similar to magnetite/ hematite ore flotationThe latter technique has been developed in continuous flotation columns or in other pilot or industrial devices for processing of UG2 ore in South Africa [5, 16 18] to remove the major chromiteEffect of sodium oleate dose on the flotation of chromiteThe large portion of chromite in the ore introduces additional challenges to both the comminution and flotation circuits The comminution challenge is due to the high density of the chromite (SG ∼ 5) relative to the silicates (SG ∼ 26–3) in the ore which leads to inefficiencies in classification, causing a high circulating load of fineEffect of different grinding media composition on the

  • Effects of frother type and froth height on the flotation

    About 70% of the UG2 reef consists of the gangue mineral chromite (FeO · Cr 2 O 3)In the processing of UG2 ore by flotation for the recovery of platinum group elements (PGEs) the presence of chromite in the concentrates can cause serious downstream processing problems and a grade of less than 3% Cr 2 O 3 is sought This constrains operating procedures and compromises optimumThese three ore bodies are principally beneficiated by froth flotation During the beneficiation of chromite hosted PGE’s by froth flotation, chromite represents the principal gangue mineral This is particularly true for the UG2 main seamMineralogical characterisation of chromite in the UG2 ReefChromite Ore Processing Lowgrade ore obtained from an open cut trench at a chromite deposit near Auburn, Calif, was treated in the laboratory using gravitymagnetic separation and flotation beneficiation techniques Flotation using knownExtraction of Chromium from Chromite Ore

  • Chromite Flotation Froth Flotation (Sulphide & Oxide

    Yes, gravity separation is the way to go in case of chromite If there are other valuable species, eg PGMcontaining minerals, they can be floated first and then tails go to gravity separation Actually chromite flotation should be similar to magnetite/ hematite ore flotationThe latter technique has been developed in continuous flotation columns or in other pilot or industrial devices for processing of UG2 ore in South Africa [5, 16 18] to remove the major chromiteEffect of sodium oleate dose on the flotation of chromiteThe large portion of chromite in the ore introduces additional challenges to both the comminution and flotation circuits The comminution challenge is due to the high density of the chromite (SG ∼ 5) relative to the silicates (SG ∼ 26–3) in the ore which leads to inefficiencies in classification, causing a high circulating load of fineEffect of different grinding media composition on the

  • Effects of frother type and froth height on the flotation

    About 70% of the UG2 reef consists of the gangue mineral chromite (FeO · Cr 2 O 3)In the processing of UG2 ore by flotation for the recovery of platinum group elements (PGEs) the presence of chromite in the concentrates can cause serious downstream processing problems and a grade of less than 3% Cr 2 O 3 is sought This constrains operating procedures and compromises optimumchromite recoveries was determined by sampling around the unit The changes in ore floatability characteristics were monitored by carrying out batch flotation tests on samplesThe Characterisation of a Two Stage Flotation CircuitChromite Ore Processing Lowgrade ore obtained from an open cut trench at a chromite deposit near Auburn, Calif, was treated in the laboratory using gravitymagnetic separation and flotation beneficiation techniques Flotation using knownExtraction of Chromium from Chromite Ore

  • flotation of chromite ore pdf federufficitecniciit

    Flotation Of Chromite Ore Pdf In South Africa Flotation Of Chromite Ore Pdf In South Africa Tailings loss in chrome ore beneficiation plantsBeneficiation routes for upgrading iron ore tailings with a teeteredSep 14, 2016 although iron ore tailings are sometimes admitted as secondary resources forOnly with coal, but with regard to iron ore processing, chromite, beach sands, metal from tailChromite is a member of the spinel group and is the only economically important ore mineral of chromium It is used extensively by the metallurgical industry as feedstock for ferroalloy production [1,2,3,4]Chromite ore is commonly classified into different grades based on the Cr/Fe ratio as well as the Cr 2 O 3 content These being metallurgical grade, chemical grade and refractory grade []A Process Mineralogical Evaluation of Chromite at theA study was carried out to evaluate various batch flotation models for the recovery of minerals in a UG2 platinum ore The major minerals in a UG2 ore can be grouped as platinum group minerals, chromite, and siliceous gangue This study also examined the entrainment of minerals during flotation The models were ranked using statistical methodsA comparison of models for the recovery of minerals in a

  • Development of PGMs and Chrome Extraction Circuit

    2 ore as the run of mine to recover PGMs and all ore is beneficiated using conventional crushing, milling, and flotation processes There is a chrome plant that is installed in the middle of the flotation circuit in order to benefit the increased in PGMs recovery from secondary circuit by