the chemistry and processing of jamaican bauxite

  • The Chemistry and Processing of Jamaican Bauxite

    The surface occurrence of the ore (usually less than 100 feet)makes the deposits suitable for mining by simple opencastmethods. Due to the soft, earthy nature of the ore, no drillingor blasting is generally required. Deposits are located in areas varying from gentle undulatingto rugged, hilly terrain involving major capital expenditures inestablishing a systeDissolution of The Alumina at Elevated TemperaturesProduction FiguresIn order to remove the iron oxides and most of the siliconoxides present, the ore is first treated with sodium hydroxide.The digestion process takes advantage of the solubility ofamphoteric aluminum oxides to form a solution of aluminate ions,whilst the basic iron oxides which form do not dissolve and areseparated by filtration. The control of silica in the conventional Bayer Process ismost important and in fact ores having reactive silica greaterthan 7% cannot be economically processed. Unl
  • The Chemistry and Processing of Jamaican Bauxite

    The Chemistry and Processing of Jamaican Bauxite The first commercial extraction of alumina (Al2O3) from bauxite has been attributed to Henri Sainte-Claire Deville in about 1854. Soon after this, in 1888, Karl Joseph Bayer described what is now known as the Bayer Process, which led to a dramatic reduction in the cost of aluminum metal.

  • processing bauxite in jamaica

    The Chemistry and Processing of Jamaican Bauxite. In October, 1943, Alcan was incorporated under the name Jamaica Bauxites Limited as a Jamaican company to investigate the commercial potential of Jamaican bauxite. In the same year, 2500 tonnes of ore was shipped to the USA for process investigation and it was realised that the bauxite was.

  • Approaches to the Processing of Jamaican Bauxite with High

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  • caribbean countries that process bauxite

    The Chemistry and Processing of Jamaican Bauxite. In October, 1943, Alcan was incorporated under the name Jamaica Bauxites Limited as a Jamaican company to investigate the commercial potential of Jamaican bauxite. In the same year, 2500 tonnes of ore was shipped to the USA for process investigation and it was realised that the bauxite was

  • The Chemistry And Processing Of Jamaican Bauxite In India

    The chemistry and processing of jamaican bauxite the chemistry of bauxite and alumina a bayer plant in jamaica due to the soft earthy nature of the ore no drilling or blasting is generally required to rugged hilly terrain involving major capital expenditures in establishing a system of. Read More >

  • processing bauxite in jamaica

    The Chemistry and Processing of Jamaican Bauxite. In October, 1943, Alcan was incorporated under the name Jamaica Bauxites Limited as a Jamaican company to investigate the commercial potential of Jamaican bauxite. In the same year, 2500 tonnes of ore was shipped to the USA for process investigation and it was realised that the bauxite was.

  • Approaches to the Processing of Jamaican Bauxite with High

    Kirwan L. J., Deeney F.A., Croke G.M. and Hodnett K., “Characterisation of various Jamaican bauxite ores by quantitative Rietveld X-ray powder diffraction and 57Fe Mössbauer spectroscopy”, International Journal of Mineral Processing, 91, No. 1–2, April 2009, 14–18. CrossRef Google Scholar

  • Impact of Jamaican Bauxite Mineralogy on Plant Operations

    A more detailed examination however, shows a remarkable change in Al 2 O 3 distribution over the various minerals, indicative of a substantial change in bauxite mineralogy. Over the same period significant changes in plant behaviour were experienced with respect to, notably alumina recovery, mud settling and liquor chemistry.

  • caribbean countries that process bauxite

    The Chemistry and Processing of Jamaican Bauxite. In October, 1943, Alcan was incorporated under the name Jamaica Bauxites Limited as a Jamaican company to investigate the commercial potential of Jamaican bauxite. In the same year, 2500 tonnes of ore was shipped to the USA for process investigation and it was realised that the bauxite was

  • Bauxite Wikipedia

    Bauxite is a sedimentary rock with a relatively high aluminium content. It is the world's main source of aluminium and gallium.Bauxite consists mostly of the aluminium minerals gibbsite (Al(OH) 3), boehmite (γ-AlO(OH)) and diaspore (α-AlO(OH)), mixed with the two iron oxides goethite (FeO(OH)) and haematite (Fe 2 O 3), the aluminium clay mineral kaolinite (Al 2 Si 2 O 5 (OH) 4) and small

  • Bauxite in Jamaica Geo for CXC

    Bauxite in Jamaica. Bauxite is the ore from which aluminium is made. Jamaica contains some of the largest known deposits of bauxite in the world. The mining areas are located in the western and central parts of the island. After mining, most of the bauxite is carried to

  • JAMAICA'S BAUXITE & ALUMINA INDUSTRY

    world's highest grade bauxite, also drew ahead of Jamaica, and is now producing about 18 million tonnes of bauxite a year. Jamaica's share of world bauxite output has therefore fallen from 18.1% in the 1970s to 8.1% of the 180 million tonnes of bauxite produced worldwide in

  • Selective Process Steps for the Recovery of Scandium from

    Dec 07, 2017· We report the development of a process allowing the selective, sustainable recovery of scandium (Sc) with 75% efficiency from Jamaican bauxite residue (red mud), a waste product from aluminum production. The process design is inspired by green chemistry principles and focuses on establishing highly selective process steps (sulfation, leaching, and precipitation) in order to minimize

  • Chemistry of the Acid Neutralization Capacity of Bauxite

    Bauxite residue (red mud—RM), a byproduct of the Bayer process for refining bauxite to alumina, is highly alkaline (pH * 13) and its tre atment and storage poses unique waste management challenges.

  • Selective Process Steps for the Recovery of Scandium from

    We have developed a selective and sustainable process for the recovery of Sc as Sc 2 O 3 from Jamaican red mud by combining various hydrometallurgical process steps with 85% efficiency [10,11].

  • effect of bauxite mining on the land

    The Chemistry and Processing of Jamaican Bauxite. Immediately prior to mining any deposit, the land is cleared and the top soil, to a minimum of 6 inches, removed and stockpiled for later replacement when mining is completed.The average grade of bauxite mined is of the order of 45% available alumina and 1.5% reactive silica.

  • What are the uses of bauxite in Jamaica?

    Jamaica’s first shipment of bauxite occurred in 1952 and subsequently, in 1957 the island was known as the world’s leading bauxite producer! The Uses of Bauxite in Jamaica Now, given that bit of the history of the bauxite industry will give you an appreciation of the main purpose of bauxite in Jamaica.

  • open pit method steps in the mining of bauxite in jamaica

    Bauxite in Jamaica Geo for CXC. Environmental Issues caused by bauxite mining Due to the methods of mining (open cast), the end result of mining on the landscape is very unsightly Jamaican regulations ensure that the land is reclaimed when mining in an area is complete The topsoil is removed and preserved before mining begins When mining is done, the land is smoothed,the topsoil is replaced

  • process for the production of alumina from bauxite ore

    The Chemistry and Processing of Jamaican Bauxite The first commercial extraction of alumina (Al2O3) from bauxite has been attributed In the same year, 2500 tonnes of ore was shipped to the USA for process.

  • The Chemistry and Processing of Jamaican Bauxite

    The Chemistry and Processing of Jamaican Bauxite. The first commercial extraction of alumina (Al2O3) from bauxite has been attributed to Henri Sainte-Claire Deville in about !"#$ Soon after this% in !!!% &arl 'ose(h )a*er described +hat is no+ ,no+n as the )a*er -rocess% +hich led to a dramatic reduction in the cost of aluminum metal$ Toda*% it is an ever*da* commodit*% rather than a (recious

  • processing bauxite in jamaica

    The Chemistry and Processing of Jamaican Bauxite. In October, 1943, Alcan was incorporated under the name Jamaica Bauxites Limited as a Jamaican company to investigate the commercial potential of Jamaican bauxite. In the same year, 2500 tonnes of ore was shipped to the USA for process investigation and it was realised that the bauxite was.

  • caribbean countries that process bauxite

    The Chemistry and Processing of Jamaican Bauxite. In October, 1943, Alcan was incorporated under the name Jamaica Bauxites Limited as a Jamaican company to investigate the commercial potential of Jamaican bauxite. In the same year, 2500 tonnes of ore was shipped to the USA for process investigation and it was realised that the bauxite was

  • JAMAICA'S BAUXITE & ALUMINA INDUSTRY

    world's highest grade bauxite, also drew ahead of Jamaica, and is now producing about 18 million tonnes of bauxite a year. Jamaica's share of world bauxite output has therefore fallen from 18.1% in the 1970s to 8.1% of the 180 million tonnes of bauxite produced worldwide in

  • Chemistry of the Acid Neutralization Capacity of Bauxite

    Bauxite residue (red mud—RM), a byproduct of the Bayer process for refining bauxite to alumina, is highly alkaline (pH * 13) and its tre atment and storage poses unique waste management challenges.

  • process for the production of alumina from bauxite ore

    The Chemistry and Processing of Jamaican Bauxite The first commercial extraction of alumina (Al2O3) from bauxite has been attributed In the same year, 2500 tonnes of ore was shipped to the USA for process.

  • Selective Process Steps for the Recovery of Scandium from

    We have developed a selective and sustainable process for the recovery of Sc as Sc 2 O 3 from Jamaican red mud by combining various hydrometallurgical process steps with 85% efficiency [10,11].

  • Bauxite and the Environment: Much Progress Mined Jamaica

    The Jamaica Bauxite Institute (JBI), a Government agency, is charged with overseeing the development of the industry and as such, standards fall under its purview. In 1990 the JBI established an Environmental Technical Committee comprising members from the bauxite/alumina companies and the government agencies responsible for environmental

  • (PDF) Economic & Political Globalization in the Caribbean

    The Jamaican experienceThe Jamaican experience in the bauxite and alumina industry in the past forty years has been one of a swinging pendulum of bargaining power (Barclay and Girvan, 2008). In the 1970s, the government sought to secure their control over economic returns, production, processing and marketing in the country's bauxite industry.

  • how bauxite mining process in jamaica

    How Bauxite Mining Process In Jamaica vollendam.nl. how bauxite mining process in jamaica. The Chemistry and Processing of Jamaican Bauxite In the same year, 2500 tonnes of ore was shipped to the USA for process investigation and it was realised that the bauxite was suitable for processing

  • Bauxite and Alumina Industry The Voice of Jamaica

    Bauxite produced for export increased by 12.6 per cent to 4.6 million dry metric tonnes, following an injection of additional capital to upgrade mining equipment and improve internal business processes at St. Ann Jamaica Bauxite Limited. In the meantime, alumina production edged upward by just under one per cent to 4.1 million tonnes.

  • chemistry and processing of indian bauxite

    The Chemistry and Processing of Jamaican Bauxite The Chemistry and Processing of Jamaican Bauxite USA for processRead More Digestion Studies on Central Indian Bauxite Indian bauxite deposits are grouped into five categories namely Eastern Ghats

  • 60 years of bauxite mining in Jamaica Part 1 News

    Jun 05, 2012· Carlton E. Davis, Contributor. ALTHOUGH I have written about the Jamaican bauxite and aluminium industry in three books and numerous articles, I think it is appropriate to repeat some of what I have written to mark the 60th anniversary of the beginning of the commercial mining of the ore.

  • Red mud Wikipedia

    Red mud, formally termed bauxite residue, is an industrial waste generated during the processing of bauxite into alumina using the Bayer process.It is composed of various oxide compounds, including the iron oxides which give its red colour. Over 95% of the alumina produced globally is through the Bayer process; for every tonne of alumina produced, approximately 1 to 1.5 tonnes of red mud are

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