1. Home
  2. Stone
  3. Cromite Ore Flotation

Cromite Ore Flotation

Cromite Ore Flotation

  • 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 processes.

  • Nioshtic2 Publications Search 10005382 Column

    The Bureau of Mines investigated column versus conventional flotation of chromtie and fluorite ores. Fine-bubble column flotation of deslimed chromite ore produced a 44.7 Cr2o3 rougher concentrate at 87.1 Recovery, whereas conventional flotation produced a 40.4 Cr2o3 concentrate at 85.4 Recovery. Column flotation of undeslimed chromite ore also produced results superior to those

  • Nioshtic2 Publications Search 10011961 Amine

    Chromite is beneficiated by froth flotation with an amine reagent. The ore is ground to 30-210 micrometer, pulped to 24-29 pct solids, acidified to ph 2.5 With h2so4, and floated with 0.5-1.0 Lb amine collectorton of ore. Thus, chromite ore was ground to -100 mesh, deslimed to 30 micrometer, and pulped to 24 pct solids. The ph was adjusted to 2 with h2so4 and a rougher concentrate was floated

  • Nioshtic2 Publications Search 20036660 Column

    The US Bureau of Mines compared column flotation using either fine or coarse bubbles with conventional flotation on a Montana chromite ore. On deslimed ore, fine-bubble column flotation produced a amp.7 Cr2O3-grade rougher concentrate with 87 recovery, compared with 43.8 and 43.5 Cr2O3-grade rougher concentrates with 85 and 77 recovery for coarse-bubble column flotation

  • Amine For Chromite Ores Processing By Froth Flotation

    Jun 14, 2012 ... In a flotation process, the ore is typically crushed and wet ground to obtain a pulp. ... The main alternative technique in froth flotation is reverse flotation. ... fluorspar, iron ore, chromite, scheelite, CaCO2, MgCO2, apatite, or ilmenite. ... dosage of other more expensive collectors in the amine flotation of KCl. Read more

  • Chromite An Overview Sciencedirect Topics

    Mihail I. Gasik, in Handbook of Ferroalloys, 2013 8.2.3 Chromium Ores and Chromites Processing. Chromite ores, as might many others, be mined by open-pit and underground methods. The share of underground mining varies between countries and deposits. The extracted ore is subjected to crushing and sorting normally rich ore containing more than 45 Cr 2 O 3 is supplied to the processing plant ...

  • Chromite Ore Processing Plants

    Chromite ore is predominantly used in the production of ferrochrome an alloy of chrome and iron, containing between 50 and 70 chromium. The production of steel is the largest consumer of ferrochrome, especially stainless steel production which contains between 10

  • Surface Chemical Mechanisms Of Inadvertent Recovery Of

    Abstract In the UG2 ore Bushveld Complex, South Africa flotation, normally more than 3 of the gangue minerals, principally chromite with talc and pyroxene, report to the concentrate diluting the PGM recovery and contributing to subsequent processing costs. Previous studies have identified residual talc-like layers on orthopyroxene surfaces in Merensky ore flotation contributing to ...

  • Characterisation And Flotation Of A Weathered Platinum

    A comprehensive characterisation of the weathered ore was carried out, where physical, chemical, and mineralogical and liberation properties of the sample were determined. The performance of the weathered ore during flotation was investigated using a pilot plant. It was found that the ore contains 3gt of 4E PGMs Pt, Pd, Ru and Au.

  • 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

  • Process For Extraction Of Platinum Group Metals From

    Thus the magnetic separation process need not achieve the nearly complete removal of all the chromite from the ore which would be required for adapting the prior available smelting and extraction methods to the ore. On the other hand, since the chromite in the flotation concentrate and slimes fed to the smelter reports to the slag layer and may ...

  • Nioshtic2 Publications Search 10004805 Column

    The Bureau of Mines devised a column flotation technique using either fine or coarse bubbles and compared it with conventional flotation on a Montana chromite ore. On deslimed ore, fine-bubble column flotation produced a 44.7 Cr2O3-grade rougher concentrate with 87 recovery, compared with 43.8 and 43.5 Cr2O3-grade rougher concentrates with 85 and 77 recovery for coarse-bubble

  • Nioshtic2 Publications Search 10005389 Column

    The U.S. Bureau of Mines compared column flotation using either fine or coarse bubbles with conventional flotation on a Montana chromite ore. On deslimed ore, fine-bubble column flotation produced a 44.7 Cr2O3-grade rougher concentrate with 87 recovery, compared with 43.8 and 43.5 Cr2O3-grade rougher concentrates with 85 and 77 recovery for coarse-bubble column flotation

  • The Characterisation Of A Two Stage Flotation Circuit

    The performance of each unit in terms of platinum, palladium, rhodium and chromite recoveries was determined by sampling around the unit. The changes in ore floatability characteristics were monitored by carrying out batch flotation tests on samples taken from the feed to each unit.

  • The Flotation Behaviour Of Chromite With Respect To The

    Chromite 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 entrainment.

  • The Flotation Behaviour Of Chromite With Respect To The

    Oct 01, 1999 Chromite 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 entrainment.

  • Selective Flocculation Of Chromite Tailings Springerlink

    Jan 23, 2021 Odisha state is the major reserve of the chromite ore. Due to the extensive applications, high-grade chromite ore is getting depleted day by day. Now it is a challenge for the industry to utilize these low-grade ores and tailings. Several attempts were taken to upgrade the low-grade chrome ores and tailings using different gravity separation methods, magnetic separation methods, flotation, etc.

  • Surface Chemical Mechanisms Of Inadvertent Recovery Of

    Feb 19, 2010 Chromite 75150 m from flotation of UG2 ore has been similarly examined. Statistical comparison of ToF-SIMS analysis of particles from concentrate and tails reveals no significant difference in Cu, Pb, Ni and collector IBX and DTP signals between these streams but surface exposure of Mg and Si is favoured in the concentrate.

  • 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 optimum recovery of the ...

  • Chrome Ore Beneficiation Process Chromite Processing

    May 15, 2019 The chrome raw ore is a flotation tail ore, which is mainly formed in the chromite, and the chromite is the target recovering mineral. The dissociation degree of ferrochromium ore is low, and it has a weak magnetic property. First of all, magnetic separation processing to separate chromite.

  • A Process Mineralogical Evaluation Of Chromite At The

    Chromite 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 CrFe ratio as well as the Cr 2 O 3 content. These being metallurgical grade, chemical grade and refractory grade .

  • Characterisation And Preconcentration Of Chromite

    The major Indian chromite deposits are located at Sukinda region of Orissa state. The depletion of high grade ore resources and having a variety of gangue minerals such as goethite, serpentine, olivine and talc, etc., has lead to the utilisation of lean ore after beneficiation. Further, ample

  • Flotation Behavior Of Sudanese Chromite Ores

    FLOTATION BEHAVIOR OF SUDANESE CHROMITE ORES 651 2. EXPERIMENTAL 2.1 Materials 2.1.1Chromite 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 a similar

  • Chromite Flotation Froth Flotation Sulphide Amp Oxide

    Actually chromite flotation should be similar to magnetite hematite ore flotation. They use amines and a reverse flotation mode. Rahil Khan. 5 years ago. Rahil Khan 5 years ago. Like. Ill probably try PGM float than gravity separation. I believe we have the reagents available here. The grain size are coarse, the particle size needed for ...

  • Nioshtic2 Publications Search 10006633 A Mine

    The Bureau of Mines, U.S. Department of the Interior, devised a flotation technique for upgrading chromite in chromium ores and gravity concentrates. The technique consisted of cationic flotation of chromite from a slime-free pulp acidified to ph 2.5 Or lower using h2so4 modifier. Flotation results showed that ore containing serpentine as the primary gangue mineral was more amenable to concentra

  • Chromium Kazchrome Completes Chromite Floatation Trials

    Jan 13, 2021 In December 2020, Eurasian Resources Group ERG reported that its Kazakhstan headquartered subsidiary, Kazchrome, had successfully completed trials for the use of floatation technology in the recovery of chromite from tailings at the Donskoy Processing Plant. Trials of the novel floatation technology resulted in a chromium oxide recovery of 55, with the specifications of the

  • Five Chrome Extraction Process To Teach You The Chromite

    Sep 25, 2020 Flotation process. At present, we can use the flotation process to recover the chromite with fine grain size -100um after the gravity separation. The results show that Mg2 and Ca2 can inhibit the chromium ore, and the inhibition of Mg2 is influenced by the type of anions in the slurry.

  • The Effect Of Copper Sulphate Addition On The Recovery Of

    flotation performance Shortridge et al. 1999 Dalvie et al. 2000. The objective of this research was to determine the level of copper sulphate dosage that can activate the chromite and also to evaluate the effect of the depressant type and dosage on the recovery of chromite in the flotation of UG2 ore. The

  • Chromite Flotation Cell With Feeder Prominer Shanghai

    chromite flotation mineral ore. Flotation of Chromite Ore Metallurgist and Mineral Processing Rougher flotation of a chromite Flotation machine is commonly used ore flotation equipment in the ore concentrate was to prepare a lowsilica feed material for refractory testing. Get Price

  • Raporty Organizacyjne Na Temat Chromite Ore

    Przycisk Dodaj do bibliografii jest dostpny obok kadej pracy w bibliografii. Uyj go a my automatycznie utworzymy odniesienie bibliograficzne do wybranej pracy w st

  • Flotation Of Chromite Ore 911 Metallurgist

    Jun 05, 2017 The general flotation method was developed by Havens. Deslimed chromite ore was floated at pH 1.5 to 5.5 using a long-chain fatty-acid collector and soluble fluoride ions as a silicate depressant. The Havens method was later modified slightly to permit flotation

  • Recover Chromite By Flotation 911 Metallurgist

    Apr 06, 2021 Flotation 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 45.6 percent Cr2O3 at

  • Flotation Behavior Of Sudanese Chromite Ores

    In the second technique U.S. Pat. No. 3,473,656, chromite ore flotation is achieved with an undeslimed ore at a pH of 11.5 using a long chain fatty acid collector. The pH of the pulp is adjusted with NaOH with the pulp being dispersed by sodium

  • Flotation Of Chromite And Serpentine Sciencedirect

    Jun 15, 2007 FSA increases chromite flotation at pH values 57. The best increase around 40 is achieved at pH 6, while it does not affect chromites flotation at pH values 8.512. With 30 mg L 1 collector FSA has a strong activating action in pH values 46. EDTA Na salt has a double action and increases chromites flotation significantly at pH values 57.5, while decreases recovery at pH

  • Us4311584a Amine Flotation Of Chromite From Acidic Pulps

    Chromium values are recovered from pulverized chromite ore by agitating and aerating an aqueous pulp of said pulverized chromite ore containing an amine collector at a pulp acidity less than 2.5...