Nalco Red Mud To Iron Ore Elgai Process

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  • Pdfcurrent Status Of An Industrial Waste Red Mudan

    Red mud is a solid residue produced during the alumina production by the bayer process from bauxite the red mud generated by this process is highly alkaline with ph usually ranging from 10 to 13 selecting method to recover concentrated iron ore 67 red oxide pigment containing about 70 iron oxide was prepared from nalco red mud by

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  • Red Mudflocculation Nalcochemical Company

    The caustic solution dissolves oxides of aluminum forming an aqueous sodium aluminate solution the causticinsoluble constituents of bauxite ore referred to as "red mud" are then separated from the aqueous phase containing the dissolved sodium aluminate solid alumina trihydrate is precipitated out of the solution and collected as product

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  • Alumina Refining Solutions And Processing Aids Market

    At an indian alumina processing plant nalco water was commissioned to help reduce the amount of chemistry used while maintaining production and efficient handling of waste specifically red mud tailings nalco waters rra flocculant replaced a conventional synthetic flocculant with 32 lower consumption leading to significant cost water

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  • Rrared Mudflocculants Nalcowater

    Red mud removal requires the use of flocculants effective in bridging and entrapping fine red mud solids to rapidly separate the solids from the saturated liquor this separation process occurs via decantation and subsequently in multiple counter current washing stages to reclaim soluble alumina and soda

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  • Pdfcharacterization Of Red Mud Asa Subgrade

    The red mud used in the present study is collected from nalco bayer process is known as red mud approximately one ton of red mud is produced for every two tons of bauxite mined

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  • Rra Red Mud Flocculants Ecolab

    Red mud removal requires the use of flocculants effective in bridging and entrapping fine red mud solids to rapidly separate the solids from the saturated liquor this separation process occurs via decantation and subsequently in multiple counter current washing stages to reclaim soluble alumina and soda

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Nalcomining Technology  Mining News And Viewsupdated

Nalcomining Technology Mining News And Viewsupdated

Nalco is a world leader in the fields of mining minerals processing and water treatment the company provides the mining and minerals industry with onsite expertise and technically economically and environmentally sustainable solutions from minetomill

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Us4545902a Flocculants For Bauxite Red Mud  Google

Us4545902a Flocculants For Bauxite Red Mud Google

Us4545902a us06650955 us65095584a us4545902a us 4545902 a us4545902 a us 4545902a us 65095584 a us65095584 a us 65095584a us 4545902 a us4545902 a us 4545902a authority us united states prior art keywords weight acrylic acid red mud alumina polymer prior art date 19840917 legal status the legal status is an assumption and is not a legal conclusion

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Pdf Solid Waste Management In Nonferrous Industries In

Pdf Solid Waste Management In Nonferrous Industries In

The process involves alkali roasting of red mud in presence of carbon at 750800 c leaching of aluminium values for alumina recovery and separating the iron values from the residue as magnetic fraction and titania as the non magnetic fraction

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Rrared Mudflocculants  Ecolab

Rrared Mudflocculants Ecolab

Rra red mud flocculants nalco waters rigid rod architecture rratm flocculants have been custom formulated and structured specifically for maximum efficiency and performance under highly challenging red mud conditions a combination of high efficiency and improved performance vs traditional red mud flocculants provides a unique advantage for alumina industry refiners to address

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Mining And Refining  Bauxite Residue Management

Mining And Refining Bauxite Residue Management

The high concentration of iron compounds in the bauxite gives the byproduct its characteristic red colour and hence its common name red mud initially the residue is washed to extract as much valuable caustic soda and dissolved alumina as possible

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Utilization Ofironvalues Ofred Mudfor Metallurgical

Utilization Ofironvalues Ofred Mudfor Metallurgical

Red mud from nalco characterized by high iron content is used in the studies two different strategies are explored a extraction of iron and other metal values from red mud using a patented process named as elgai process available for the removal of alumina from iron ores and b use of red mud as an additive in the iron ore sintering

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Rrared Mudflocculants Nalcowater

Rrared Mudflocculants Nalcowater

Red mud removal requires the use of flocculants effective in bridging and entrapping fine red mud solids to rapidly separate the solids from the saturated liquor this separation process occurs via decantation and subsequently in multiple counter current washing stages to reclaim soluble alumina and soda

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The Properties And Performance Ofred Mudbased

The Properties And Performance Ofred Mudbased

Jan 01 2015 red mud and fly ash were dry mixed in a planetary mixer for 3 min followed by mixing with alkali solution for another 3 min after uniform mixing was achieved river sand was added and mixed for another 2 min 2 the mixture was discharged onto a conveyer

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Astudy Of Iron Mineral Transformation To Reduce Red Mud

Astudy Of Iron Mineral Transformation To Reduce Red Mud

Jan 01 2001 the research focuses on 1 analysis of the main mineral conversion process in particular the conversion of goethite to hematite and magnetite by adding a reducing agent varying process time and raising the temperature of the bayer process 2 analysis of the settling behavior and properties of the resulting red mud and 3 examination

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About Usnalconational Aluminium Company Limited  A

About Usnalconational Aluminium Company Limited A

As a part of its effort to convert waste to wealth the company is endeavouring to salvage iron concentrate from red mud gallium from spent liquor the company has also successfully commissioned a first of its kind defluoridation process based on nanotechnology to de contaminate the effluent water of smelter solving a long standing fluoride

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Nalcoto Tap Wastetowealth Model Using Chinese Tech To

Nalcoto Tap Wastetowealth Model Using Chinese Tech To

Read more about nalco to tap wastetowealth model using chinese tech to boost bottom line on business standard company hopes to extract 1520 mn tonnes of iron ore concentrates from its inventory of 60 mn tonnes of red mud

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The Composition Recycling And Utilisation Ofbayerred Mud

The Composition Recycling And Utilisation Ofbayerred Mud

Feb 01 2019 hydrothermal process red mud was calcined at various temperatures followed by leaching with h 2 so 4 the dissolution of iron was quite faster than aluminium at calcined temperature 600 c and 6 moll of sulfuric acid the amounts of alumina and iron recycled were 6440 and 9746 accordingly uzun and gulfen 2007 china na al

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Bayer Process An Overview  Sciencedirect Topics

Bayer Process An Overview Sciencedirect Topics

Gangue solids usually iron oxides quartz and other resistant minerals are separated from the hot sodium aluminate slurry by physical means such as settling and filtration the solids red mud and red sand are countercurrent washed to recover the caustic solutions then pumped to specially designed impoundment beds

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Us6248302b1  Process For Treating Red Mudto Recover

Us6248302b1 Process For Treating Red Mudto Recover

A method for processing red mud to recover iron aluminum silicon and titanium metal values therefrom the method comprising the steps of adding the red mud to a digester containing an acid to

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Rra Red Mud Flocculants Ecolab

Rra Red Mud Flocculants Ecolab

Red mud removal requires the use of flocculants effective in bridging and entrapping fine red mud solids to rapidly separate the solids from the saturated liquor this separation process occurs via decantation and subsequently in multiple counter current washing stages to reclaim soluble alumina and soda

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Us9199855b2  Chemical Treatment To Improve Red Mud

Us9199855b2 Chemical Treatment To Improve Red Mud

The invention provides methods and compositions for improving the rheology of red mud removed from bayer process liquor the method includes adding a flocculant and a crosslinked polysaccharide to the liquor this combination separates the red mud from the liquor but also prevents the red mud from becoming too thick by preventing excessive thickness the method allows for the formation of

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