• 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. Unlike quartz, whic
  • Damning assessment of Jamaica Govt’s handling of bauxite

    Jan 19, 2021· Damning assessment of Jamaica Govt’s handling of bauxite industry (Jamaica Observer) A damning assessment of the Jamaica Bauxite Institute (JBI), in a recent study, has revealed major environmental.

  • Bauxite processing in Jamaica and Guyana: An extension to

    May 01, 1992· Less than 50% of all bauxite mined in Jamaica is domestically refined into alumina, and the country has no aluminumsmelting capacity. About 20% of all bauxite mined in Guyana is domestically refined into alumina, and the country produces no aluminum ingot. Guyana, however, produces a large percentage of the world's refractory-grade bauxite.

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  • environmental effects of bauxite mining in jamaica.pdf

    The Bayer process which is used to extract alumina from bauxite, had to be modified to deal with Jamaican bauxite. The sources of pollution in this process and ancillary processes which provide inputs or remove outputs of the Bayer process are briefly described.

  • JAMAICA'S BAUXITE & ALUMINA INDUSTRY

    JAMAICA BAUXITE INSTITUTE Page 3 Jamaica Bauxite Company), located in Discovery Bay, is the only company that ships the raw bauxite ore. COMPANY LOCATION OPERATIONS OWNERSHIP CAPACITY Alumina Partners of Jamaica (Alpart) Nain, St. Elizabeth Mining operations in Manchester and St. Elizabeth, refining alumina in Nain, St. Elizabeth, and

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  • Laboratory Jamaica Bauxite Institute (JBI)

    Laboratory Jamaica Bauxite Institute (JBI) The JBI’s analytical laboratories undertake a wide range of analytical testing both chemical and mineralogical; and processability testing. Routine analysis is undertaken on behalf of the government to verify the quality of bauxite being processed by the bauxite

  • Jamaica Bauxite Institute (JBI)

    The Jamaica Bauxite Institute (JBI) provides a wide range of services to bauxite and alumina companies, the government, private businesses and individuals. These include but not limited to: Process Monitoring and Environmental Services

  • The bauxite industry — the other side Jamaica Observer

    Jamaica has also benefited from development of safety programmes as introduced by the bauxite industry. In the early days of bauxite mining no occupational health and safety programmes or legal.

  • Bauxite processing in Jamaica and Guyana: An extension to

    May 01, 1992· Thus, Jamaica and Guyana are particularly appropriate case studies for examining the impacts of increased bauxite processing because they are both major producers of the ore, and therefore the industry plays a major role in their economies, and the industry in both countries can be fairly described as significantly lacking domestic processing

  • Jamaican Bauxites Jamaica Bauxite Institute (JBI)

    The gibbsite content of Jamaican bauxite ranges from 34-46%, whereas boehmite can range from 1-12%. For this reason, Jamaican bauxite may be classified as `mixed’ trihydrate/monohydrate or gibbsite/boehmite bauxite. Some amount of blending can be tolerated in the processing, and this is encouraged in order to maximize use of the resource.

  • Approaches to the Processing of Jamaican Bauxite with High

    Strahl E.O., “The mineralogy of Jamaican bauxite and its effect on Bayer process technology”, Journal of the Geological Society of Jamaica: Bauxite/Alumina

  • JAMAICA'S BAUXITE & ALUMINA INDUSTRY

    JAMAICA BAUXITE INSTITUTE Page 3 Jamaica Bauxite Company), located in Discovery Bay, is the only company that ships the raw bauxite ore. COMPANY LOCATION OPERATIONS OWNERSHIP CAPACITY Alumina Partners of Jamaica (Alpart) Nain, St. Elizabeth Mining operations in Manchester and St. Elizabeth, refining alumina in Nain, St. Elizabeth, and

  • Laboratory Jamaica Bauxite Institute (JBI)

    The Jamaica Bauxite Institute (JBI) is a recognized repository of information on bauxite and alumina, and enjoys a solid reputation for research and analysis of data and trends in the industry. The existence of the JBI puts Jamaica in the position of being one of the few developing countries with an institution devoted solely to the research

  • Bauxite Industry- Jamaica The economic developments of

    Bauxite is the red dirt found in countries like Jamaica, Guyana, Suriname within the Caribbean but also in other countries such as Australia and Brazil. The bauxite industry has its history in post- slavery when England ran the bauxite export, into the years when bauxite was among the industries being nationalized by Caribbean governments. . However, in the years of recession following 1975

  • Mining and Refining Jamaica World Aluminium

    Alcan (now Rio Tinto) has had a long history in Jamaica, constructing two alumina refineries there in the 1950s. In 2001 Alcan sold its bauxite mining and alumina plants in Jamaica but kept responsibility for many of the bauxite residue sites with the intention of safely remediating them to an agreed standard and transferring ownership to the Government of Jamaica.

  • 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

  • Renelux Commodities Bauxite

    Cement grade bauxite is traditionally produced in India, Australia, Turkey and recently, in Jamaica. Recently, cement plants are using "Bauxite Residue" in Cement industries for substitute of iron ore fines usage. "Bauxite Residue" will come from Aluminium Refineries after processing of mineral as a waste. It is containing Fe2O3>52%

  • Mining and Refining Process World Aluminium

    Unlike the base metal ores, bauxite does not require complex processing because most of the bauxite mined is of an acceptable grade. Ore quality can be improved by relatively simple and inexpensive processes for removing clay, known as “beneficiation”, which include washing, wet screening and mechanical or manual sorting.

  • Bauxite processing in Jamaica and Guyana: An estimate of

    Feb 01, 1989· Percentage increases in total value added are generally larger in Jamaica, reflecting Jamaica's greater bauxite production, even relative to the size of its economy. 284 Under the 75% processing scenario, average total value added impacts experienced by Guyana range from approximately 2.5% to 3.2%, while those for Jamaica range from 3.1% to 4.2%.

  • Jamaica must get its due from bauxite mining

    Jamaica must get its due from bauxite mining Jamaica and in particular the people most affected by bauxite mining and alumina processing are far better off than they were before.

  • 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.

  • Bauxite mining in Jamaica YouTube

    Bauxite mining in Jamaica

  • Bauxite processing in Jamaica and Guyana: An estimate of

    Feb 01, 1989· Percentage increases in total value added are generally larger in Jamaica, reflecting Jamaica's greater bauxite production, even relative to the size of its economy. 284 Under the 75% processing scenario, average total value added impacts experienced by Guyana range from approximately 2.5% to 3.2%, while those for Jamaica range from 3.1% to 4.2%.

  • Bauxite Mining and Shipping St. Ann, Jamaica Noranda

    Because of Jamaica’s low-silica high-quality bauxite, it is well suited for global alumina and cement industries. Aluminum production starts with the strip mining of the raw material bauxite, which is a clay-like soil found near the equator. Bauxite is a sedimentary rock with a high aluminum content and is the world’s leading resource for

  • Approaches to the Processing of Jamaican Bauxite with High

    Strahl E.O., “The mineralogy of Jamaican bauxite and its effect on Bayer process technology”, Journal of the Geological Society of Jamaica: Bauxite/Alumina

  • JAMAICA'S BAUXITE & ALUMINA INDUSTRY

    JAMAICA BAUXITE INSTITUTE Page 3 Jamaica Bauxite Company), located in Discovery Bay, is the only company that ships the raw bauxite ore. COMPANY LOCATION OPERATIONS OWNERSHIP CAPACITY Alumina Partners of Jamaica (Alpart) Nain, St. Elizabeth Mining operations in Manchester and St. Elizabeth, refining alumina in Nain, St. Elizabeth, and

  • Mining and Refining Jamaica World Aluminium

    Alcan (now Rio Tinto) has had a long history in Jamaica, constructing two alumina refineries there in the 1950s. In 2001 Alcan sold its bauxite mining and alumina plants in Jamaica but kept responsibility for many of the bauxite residue sites with the intention of safely remediating them to an agreed standard and transferring ownership to the Government of Jamaica.

  • Bauxite in Jamaica Geo for CXC

    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 alumina plants where it is refined into alumina. The alumina (or in some cases unrefined bauxite) is carried to export ports by rail.

  • Bauxite Industry- Jamaica The economic developments of

    Bauxite is the red dirt found in countries like Jamaica, Guyana, Suriname within the Caribbean but also in other countries such as Australia and Brazil. The bauxite industry has its history in post- slavery when England ran the bauxite export, into the years when bauxite was among the industries being nationalized by Caribbean governments. . However, in the years of recession following 1975

  • Renelux Commodities Bauxite

    Cement grade bauxite is traditionally produced in India, Australia, Turkey and recently, in Jamaica. Recently, cement plants are using "Bauxite Residue" in Cement industries for substitute of iron ore fines usage. "Bauxite Residue" will come from Aluminium Refineries after processing of mineral as a waste. It is containing Fe2O3>52%

  • Nine Things To Know About The Aluminum Industry In Jamaica

    In 1943 Alcan, the Canadian multinational aluminum company, incorporated in Jamaica as Jamaica Bauxite limited and shipped 2,500 tons of ore to the USA to test suitability for Bayer processing. The urgency of the search for bauxite in Jamaica was triggered by German U-boats successfully targeting and sinking the ships carrying bauxite from the

  • Mining and Refining Process World Aluminium

    Unlike the base metal ores, bauxite does not require complex processing because most of the bauxite mined is of an acceptable grade. Ore quality can be improved by relatively simple and inexpensive processes for removing clay, known as “beneficiation”, which include washing, wet screening and mechanical or manual sorting.

  • Jamaica Bauxite Institute Playing Critical Role Jamaica

    Now all that changed with the establishment of the Jamaica Bauxite Institute,” says Mr. Angus, former Permanent Secretary in the Ministry of Mining and Natural Resources. The man who played a pivotal role in the establishment of the JBI was distinguished Jamaican attorney-at-law, Pat Rousseau, a member of the legendary and brilliant bauxite

  • THE BAUXITE (PRODUCTION LEVY) ACT Government of

    Jamaica, during each quarterly period, not less than the number of tons of bauxite or laterite specified in respect of that bauxite producer in the second column of the said Schedule (hereinafter referred to as the “minimum tonnage”); and 19t 1998 S. 3 (a). (b) shall pay to the commercial bank approved pur-

  • Bauxite waste management » AlSiCal

    Apr 30, 2020· Processing of bauxite leads to a complex mix of waste. Bauxite residue is mainly composed of iron oxides, titanium oxide, silicon oxide and un-dissolved alumina together with a wide range of other oxides which vary according to the country of origin of the bauxite.

  • Mineral Valuation and Sustainability: Jamaica’s bauxite

    Jul 22, 2019· Bauxite mining and processing costs; Bauxite production; We will also took a deeper dive into the geology of worldwide bauxite deposits and major mines around the globe. Officials had the opportunity to participate in practical, hands-on exercises on bauxite consumption, production costs and transfer pricing, and royalty calculations.