COLUMN FLOTATION TECHNOLOGY IMPROVES  MINERAL PRODUCTION

Column flotation cells were introduced to the market place about thirty ago years as devices capable of producing concentrates that were lower in impurities than those produced by other types of flotation machines. The ability to operate columns with deep froth beds and to wash the froth was the main reasons cited for the improved metallurgical performance.

Eriez offers a variety of flotation systems for specific applications. These include:


History
G.M. Callow patented the first pneumatic flotation cell, which used air sparging through a porous bottom and horizontal slurry flow, in 1914. The first countercurrent column flotation device was designed and tested by Town and Flynn in 1919. Cross-current pneumatic flotation machines were widely used in industry in 1920’s and 1930’s, but were later replaced by the impeller-type flotation devices in mineral processing plants. Dissolved-air flotation became the main type of flotation for water treatment applications. These substitutions were the result of the absence of effective and reliable air spargers for fine bubble generation and by the lack of automatic control systems on the early columns. During this period, both the poor flotation selectivity and entrainment of slimes characteristic of impeller-type cells was offset by the use of complex flowsheets using large numbers of cleaner stages and recycle lines. Column flotation devices were re-introduced for mineral processing in the late-1960’s in Canada by Boutin and Wheeler (1967) at which time wash water addition to the froth was used to eliminate entrainment of hydrophilic materials to the float product. By the late-1980’s column flotation had became a proven industrial technology in the mineral industry. These separators are routinely used on their own or in conjunction with other types of devices within separation circuits

 

 

StackCell CPSA Article

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Eriez Flotation Products

Flotation, hydraulic separators, slurry distributors, mini pilot plant equipment and more
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Mining and Minerals Processing Brochure

Complete overview of Eriez Flotation and Magnetic equipment for mining and mineral production
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Mineral Producers Improve Plant Performance Using Column Flotation Technology

Paper includes Column Flotation technology benefits and description.
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The Production of High Grade Iron Ore Concentrates Using Flotation Columns

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The Use of Column Flotation for the Recovery of Ultra-Fine Phosphates

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Testing of the HydroFloat Separator for Coal Cleaning Applications

This article describes the theoretical basis for the development of the HydroFloat separator and provides an overview of performance data obtained from recent field trials.
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Phosphate Producers Improve Plant Performance Using EFD Flotation Technology

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HydroFloat®: Una Nueva Tecnología Eco-Eficiente para el Procesamiento de Oro

HydroFloat®: Una Nueva Tecnología Eco-Eficiente para el Procesamiento de Oro
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Fertilizer Hydrofloat Brochure

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Flotation Technology for Coarse and Fine Particle Recovery

Challenges associated with conventional froth flotation equipment
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CrossFlow Brochure

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DeGrussa Profile CavTube Sparging

Ultra fines recovery of Copper Sulfide
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Industrial Applications for Column Cells as Roughers

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FlotationBrochure_FGB-100D

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Spargers for Air/O2 Injection into CIP/CIL Gold Leach Tanks

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Flotation Mini Pilot Plant Experience at Falconbridge Limited

Paper describes Falconbridge Technology Center commissioning of the Mini Pilot Plant with a Cu/Ni/PGM sulphide ore and validation of the technology.
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Flotación de Finos y Gruesos Aplicada a la Recuperación de Minerales de Cobre

Tamaño de las partículas: lograr mayor las recuperaciones metalúrgicas de flotación
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ALS Metallurgy CMP 2017 - Coarse Particle Flotation

HydroFloat Presentation by Peter Mehrfert ALS Kamloops, at CMP 2017
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Reporte de Cavitador Eriez Articulo (003)

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StackCell Brochure

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