Treatment process of alumina tailings

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    What Do You Need to Know about the Tailing s Treatment

    The tailings are treated by tailings dam stockpiling in concentrators The residual toxic agents waste water and heavy metal ions in the process of ore dressing will not only cause pollution and ecological damage to the surrounding environment of the mine but also increase the potential safety hazards of tailings dam and induce landslides debris flows and dam breaks of tailings dam and

    Tailings treatment techniques for uranium mill waste a

    article osti title = Tailings treatment techniques for uranium mill waste a review of existing information Neutralization processes fixation processes and specific constituent removal author = Sherwood D R and Serne R J abstractNote = Of primary concern at uranium mill sites in the United States is the potential of ground water contamination from mill wastes that are

    Process development for elemental recovery from PGM

    Process development for elemental recovery from PGM tailings by thermochemical treatment Preliminary major element extraction studies using ammonium sulphate as extracting agent Sameera Mohameda b Elizabet M van der Merwec Wladyslaw Altermannb ɫ Frédéric J Douceta d a Council for Geoscience Private Bag X112 Pretoria 0001 South Africa

    Flocculants and tailingsProcess productivity

    Poor appreciation of the impact of flocculant polymers across the tailings treatment process from feedwell flocculation and bed compaction in thickeners through to tailings discharge It s much more than which product gives the highest settling rate at the lowest dosage

    PROCESS FOR FLOCCULATION OF A TAILINGS STREAM

    A process according to claim 1 wherein the tailings stream is a coarse tailings a fine tailings or a froth treatment tailings produced in a process for extracting bitumen from an oil sands ore 3 A process according to claim 1 wherein the multivalent metal compound and/or low molecular weight cationic organic polymer is added and then the

    Implementation of a High Density Sludge HDS

    The results showed that the HDS process could significantly improve tlze sludge characteristics by increasing the solids fraction from 1 5 to 12 0 thereby decreasing the sludge volume to be disposed to the tailings ponds by a factor of 10 A full scale HDS lime neutralization treatment

    TAILINGS MANAGEMENT

    tailings and the issues that need to be addressed in all stages of the life cycle of railings This section is followed by 21 case studies illustrating the specific components of rnanagcmcnt of tailings from planning through to closure The cases are mainly pre scnted in a two page fiarmat in order to provide the reader with a quick appreciation

    BAI Borneo Alumina Indonesia

    The tailings yard of this smelter grade alumina project include red mud and slag stockyard The Red Mud Stockyard is adjacent to the Alumina Plant and located on the north side of it The stockyard type is Red Mud Stockyard on plain The Red Mud Stockyard adopts the dry stocking process of filter cake

    Canadian Natural ResourcesManaging Tailings

    This process also produces stackable dry tailings Learn more about IPEP by watching this video We are also working with Titanium Corporation to evaluate the potential deployment of their froth treatment tailings remediation technology to recover bitumen solvents and minerals from the tailings stream

    PDF Recovery of high surface area alumina from aluminium

    Extraction of the aluminium was carried out via atmospheric and high pressure leaching with caustic soda Then it was separated from the sodium aluminate solutions thus obtained using six different precipitation methods The precipitates were ltered washed dried and calcined at 600 C to produce the test aluminas

    Rehabilitation of Red Mud Tailings Produced at the

    fraction of process sand The principal residue red mud is produced at a rate of approximately 1 05 million tonnes per annum and about 0 15 million tonnes of process sand is also produced There are an estimated 84 global alumina producers generating an estimated 65 M tonnes of

    Enhanced Water Recovery of Mature Fine Tailings

    processes Article Evaluation of a Novel Polymeric Flocculant for Enhanced Water Recovery of Mature Fine Tailings Kyle C Lister 1 Heather Kaminsky 2 and Robin A Hutchinson 1 1 Department of Chemical Engineering Queen s University 19 Division St Kingston ON K7L 3N6 Canada 11kl26 queensu ca

    Synthesis of high grade alumina from aluminium dross

    alums aluminium sulfate by dividing the alumina leach ing process into two steps In the first step leaching was carried out with dilute H 2 SO 4 to remove impurities and in the second step alumina was extracted from the purified dross tailings using concentrated H 2 SO 4 14 El Katatny et al 26 described a process where aluminium can

    Treatment of alumina refinery waste red mud through

    In the Bayer process of extraction of alumina from bauxite the insoluble product generated after bauxite digestion with sodium hydroxide at elevated temperature and pressure is known as red mud or bauxite residue This alumina refinery waste is highly alkaline in nature with a pH of 10 5 12 5 a

    Mine Tailings Retreatment ProcessJXSC Machine

    Tailings dry discharge It is a new process using dewatering type cyclone high frequency dewatering screen and high efficiency deep cone thickener It can reduce the water content in tailings to less than 15 and save costs which can effectively avoid

    Environmental Guidelines for Aluminum Manufacturing

    plant can use in the process The excess may require treatment The main solid waste from the alumina plant is the red mud as high as 2 t of mud per ton of alumina produced which contains oxides of alumina silicon iron titanium sodium calcium and others The pH will be in the range of 10 12 Disposal is to an impoundment

    TREATMENT OF TAILINGSEXTRAKT PROCESS SOLUTIONS

    Processes of consolidating tailings such as from metal and non metal based ore processes are disclosed The processes include mixing tailings with a high concentration of a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the tailings and separating the consolidated solids from process water

    Enhanced Water Recovery of Mature Fine Tailings

    processes Article Evaluation of a Novel Polymeric Flocculant for Enhanced Water Recovery of Mature Fine Tailings Kyle C Lister 1 Heather Kaminsky 2 and Robin A Hutchinson 1 1 Department of Chemical Engineering Queen s University 19 Division St Kingston ON K7L 3N6 Canada 11kl26 queensu ca

    Treatment of alumina refinery waste red mud through

    Treatment of alumina refinery waste red mud through neutralization techniques A review In the Bayer process of extraction of alumina from bauxite the insoluble product generated after bauxite digestion with sodium hydroxide at elevated temperature and pressure is known as red mud or bauxite residue

    PDF Recovery of high surface area alumina from aluminium

    Abstract and Figures Aluminium dross tailings ADT a chemical waste from a factory producing aluminium in Egypt was used for the recovery of the aluminium content in the form of alumina Al2O3

    Rheomax ETD Tailings ManagementBASF

    This accelerates the drying time of the tailings results in a smaller tailings footprint and allows the released water to be returned to the process faster This treatment has been found to be effective in improving tailings properties from a wide cross section of industries including Alumina Nickel Gold Iron Ore Mineral Sands Oil Sands

    PDF Recovery of high surface area alumina from

    Recovery of high surface area alumina from aluminium dross tailings Mohamed Zaki Related Papers Recovery of ethene selective FeOx/Al2O3 ethanol dehydration catalyst from industrial chemical wastes By Mohamed Zaki Leaching of Aluminium Dross in Alkaline Solu tion

    ENVIRONMENTAL ASPECTS OF BAUXITE ALUMINA AND

    ALUMINA AND ALUMINIUM 13 A Introduction 13 B Bauxite mining 14 1 MRN 14 1 1 Revegetation 14 1 2 Bauxite Tailings Disposal 14 1 3 Rehabilitation of Lake Batata 15 1 4 Control of solid particles emissions 17 1 5 MRN s environmental policy 17 2 Bauxite Mining in the Southeastern Region 17 2 1 Alcoa 18 C Alumina production 18 1 Alumar 19 2

    BAI Borneo Alumina Indonesia

    The tailings yard of this smelter grade alumina project include red mud and slag stockyard The Red Mud Stockyard is adjacent to the Alumina Plant and located on the north side of it The stockyard type is Red Mud Stockyard on plain The Red Mud Stockyard adopts the dry stocking process of filter cake

    Vanadium SludgeAn Useful Byproduct of Alumina Plant

    Vanadium SludgeAn Useful Byproduct of Alumina Plant Rajeev J Pradhan S N Das and R S Thakur Regional Research Laboratory Bhubaneswar 751 013 India Received 12 May 1999 accepted 16 September 1999 During the production of alumina from bauxite by the Bayer s process a sludge containing fairly higher quantity of vanadium is obtained

    Recovery of high surface area alumina from aluminium

    Recovery of high surface area alumina from aluminium dross tailings Ezzat A EI Katatny 1 Samih A Halawy 2 Mohamed A Mohamed3 and Mohamed I Zaki4 1Aluminium Company of Egypt Nag Hammady Egypt

    Innovative Solutions for Tailings Management

    returned to the process faster This treatment has been found to be effective in improving tail ings properties from a wide cross section of industries includ ing Alumina Nickel Gold Iron Ore Mineral Sands Oil Sands and Copper amongst others Enhanced Tailings Disposal is a method of Tailings Management in which novel

    Current state of fine mineral tailings treatment A

    Global inventory of the highly alkaline by product red mud from alumina production using the Bayer process has surpassed 2 5 billion tonnes in 2007 with a predicted growth of 120 million tonnes per year at an estimated ratio of 1 1 5 tonnes of red mud per tonne of alumina product or 4 tonnes per tonne of finished aluminum Kumar et al 2006

    Alumina and Bauxite Mines Smelters and Refineries

    like Alcoa St Croix Alumina and Sherwin Alumina that will stretch into the next decade Our strong team of hydrologists hydrogeologists geologists and wastewater treatment experts ensure that bauxite is safely stored and that alumina producers manage water

    Production of η alumina from waste aluminium dross

    The process developed for the treatment of aluminium dross is unique in nature The treatment options available mostly aimed to optimize the recovery of metal part from oxide part and rest was land filled In this study only alumina part was subjected to the treatment after recovering the metal part by screening

    Bauxite Mine Tailings and Alumina Refinery Residue

    Bauxite Mine Tailings mud like residue remaining after bauxite is washed at mine sites Alumina Refinery Residue refinery process byproducts such as bauxite residue and sand remaining after extraction of alumina from bauxite in refineries we have dry residue filtered cake thickened solar natural evaporation storage and wet storage

    PROCESS FOR FLOCCULATION OF A TAILINGS STREAM

    A process according to claim 1 wherein the tailings stream is a coarse tailings a fine tailings or a froth treatment tailings produced in a process for extracting bitumen from an oil sands ore 3 A process according to claim 1 wherein the multivalent metal compound and/or low molecular weight cationic organic polymer is

    Rehabilitation of Red Mud Tailings Produced at the

    fraction of process sand The principal residue red mud is produced at a rate of approximately 1 05 million tonnes per annum and about 0 15 million tonnes of process sand is also produced There are an estimated 84 global alumina producers generating an estimated 65 M tonnes of processing residue per annum Prasad et al 1996

    Extraction of lithium and aluminium from bauxite mine

    In this study a less energy consumption treatment method for extracting aluminium and lithium from bauxite mine tailings has been proposed which used mixed acid to leach aluminium and lithium from tailings directly avoided roasting for reducing energy consumption and obtained effective results The minerals in the tailings are kaolinite diaspore boehmite anatase and illite among others