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Mining Of Lafia Obi Coal

Subsequent prospecting was conducted and twenty-two coal mine sites/deposits were discovered with varying reserves. Lafia/obi coal is one of them with proven reserve of 21.42 million tonnes [3]. Lafia/obi coal is bituminous and this grade of coal is important as …

  • Gasification of Lafia-Obi Coal using ANSYS Fluent as … Gasification of Lafia-Obi Coal using ANSYS Fluent as …

    Subsequent prospecting was conducted and twenty-two coal mine sites/deposits were discovered with varying reserves. Lafia/obi coal is one of them with proven reserve of 21.42 million tonnes [3]. Lafia/obi coal is bituminous and this grade of coal is important as …

  • WASHABILITY AND FROTH FLOTATION TESTS OF LAFIA-OBI WASHABILITY AND FROTH FLOTATION TESTS OF LAFIA-OBI

    Iron Ore Mining Process. WASHABILITY AND FROTH FLOTATION TESTS OF LAFIA-OBI . Abstract: Washability and froth flotation tests on Lafia-Obi Coal deposit Nasarawa State Froth flotation is the most important and versatile mineral dressing or. Chat. effect of key variables on coal cleaning by froth flotation technique.

  • Computational fluid dynamics simulation of Lafia–Obi ... Computational fluid dynamics simulation of Lafia–Obi ...

    Jan 15, 2015 The objective of the present study is to numerically study the process of the heterogeneous combustion of the Nigerian Lafia–Obi coal particles in a fluidized-bed reactor for air- and oxy-fuel combustion. The coal was taken from the Lafia–Obi site in the MBT of Nigeria; the coal particle sizes varied from 10 mm to 25 mm.

  • MULTISTAGE CAUSTIC LEACHING DE-ASHING OF … MULTISTAGE CAUSTIC LEACHING DE-ASHING OF …

    The coal site is about 81 km on the left side off Lafia-Obi highway. About 10 kg of the bulk samples of Lafia-Obi were removed from the top seams intersected at a depth of about 1 m from the ground surface in open pit mines A and B. 2.3 Sample preparation The clean bulk samples of Lafia-Obi samples A and B were mixed in 1:1 proportions.

  • Geology, geochemistry and biomarker evaluation of Lafia ... Geology, geochemistry and biomarker evaluation of Lafia ...

    Geology, geochemistry and biomarker evaluation of Lafia-Obi coal, Benue Trough, Nigeria. OLUGBENGA A EHINOLA. D. Oros. C. Ekweozor. OLUGBENGA A EHINOLA. D. Oros. C. Ekweozor. Related Papers. Aspects of organic geochemistry of Nigerian coal as a potential source-rock of petroleum. By Taofik Adedosu.

  • A REVIEW OF TECHNICAL POTENTIAL FOR COAL … A REVIEW OF TECHNICAL POTENTIAL FOR COAL …

    within the known coal areas at Enugu, Ezinmo, Owukpa, Okabba , and Oggboyega and later in the seventies at Lafia-obi. Udi mine, located at the foot of a range of Enugu hills, was the scene of the first ever Nigerian mining activity in 1906. Thereafter Oghete, Iveallal and Asaba in that order were worked and exhausted between 1917 and 1967.

  • COAL MINING AND THE ENVIRONMENTAL IMPACT … COAL MINING AND THE ENVIRONMENTAL IMPACT …

    The impact of AMDs from Odagbo, Enugu and Lafia-obi coal mines in Kogi, Enugu and Nasarawa States, Nigeria respectively is reviewed in this section. A list of selected impacted areas in different continents is also presented in (Table 2) 3.1 Odagbo An analysis of drains from Odagbo coal mine was conducted. The levels of lead, nickel, cobalt,

  • Assessment of Some Nigerian Coals for Metallurgical ... Assessment of Some Nigerian Coals for Metallurgical ...

    profile for Lafia-Obi coal, indicating that the coal has a good coking potential. A good . Vol.7, No.4 Assessment of Some Nigerian Coals 305 metallurgical coal usually possesses a Gray-king profile between G1 to G9. Doho and Lamja coals have Gray-king type A and B profiles respectively which suggest that they are of poor ...

  • (PDF) The Nigerian Coal Corporation: An Evaluation Of ... (PDF) The Nigerian Coal Corporation: An Evaluation Of ...

    The coal measures (Fig. 2) are concentrated within the Anambra Basin, but also occur in other rocks within Nigeria such as Lafia-Obi in Plateau state, Lamja, Gombe in Bauchi state and Afikpo in ...

  • Ogboyega Coal Block • I-MINE Ogboyega Coal Block • I-MINE

    The Ogboyega coal block covers about 287,600 hectares of land. Coal crops out in the creeks at the base of the Enugu Escarpment at approx. 250 meters to 300 meters above sea level. Sandstone rich zones such as the Ajali Sandstone form small escarpments that …

  • Amansiodo Coal Block • I-MINE Amansiodo Coal Block • I-MINE

    Coal occurs within the Cretaceous Mamu Formation at the base of the Enugu Escarpment. Exploration. Mapping and drilling 3 core holes carried out with established depth to coal seam at 563m. Underground development undertaken with mine subsequently abandoned. Coal is bituminous; Resource Estimation. Over 128 million tonnes- inferred Data Available

  • Appraisal of the Economic Geology of Nigerian Coal … Appraisal of the Economic Geology of Nigerian Coal …

    Mineable coal deposits in Nigeria occur at Enugu, Okaba, Ogboyaga, Orukpa, Obi-Lafia, Gombe and Chikila (Obaje, 2009). There is a reported occurrence of coal seams in Ezimo, Enugu State; Iyoko River, east of Ukana and Egodo River near Okpatu both in Benue State. There is a main coal seam in Inyi area, Enugu State. Inyi coal deposit is

  • Okaba Coal Block • I-MINE Okaba Coal Block • I-MINE

    Coal Basin, and occupy an area of approx. 145,600 hectares. These resource estimates exclude coal that is less than 1.5m thick. These resources appear to be amenable to underground mining utilising long wall and surface contour mining along the outcrop. 274,000 ha of the deposit is unexplored to the north, south, and down dip to the west from ...

  • Okpara Coal Block • I-MINE Okpara Coal Block • I-MINE

    Coal quality averages 27.08MJ/kh (6,471Kcal/Kg or 11,660 Btu), 9.64% ash and 0.95% sulphur on as-received basis. Work has only been carried out on the south-eastern flank of the deposit, measuring approx. 75,800 hectares. Mining activities were suspended. Resource Estimation. Over 100 million tonnes- inferred Data Available. Geological maps.

  • Stratigraphic palynology of Obi (Lafia), Plateau State of ... Stratigraphic palynology of Obi (Lafia), Plateau State of ...

    Apr 01, 1982 The Obi—Lafia area is part of the Benue Valley where the Nigerian Steel Development Authority is currently involved in exploration for coal. Boreholes in the area range between 200–500 m. The rock units are mainly shales, sandstones, limestones and coal with transitional zones in between.

  • Emission and Combustion Characteristics of Lafia-Obi Coal ... Emission and Combustion Characteristics of Lafia-Obi Coal ...

    The technology of fluidized bed coal combustion (FBC) and its advantages over conventional coal burning systems is now well established and is extensively reported in the literature. There is also some emphasis in literature about the suitability of Lafia-Obi coal in FBC. However, there is little quantitative or qualitative information on theperformance of Lafia-Obi in FBC.

  • About Nasarawa State – Official Website of Nasarawa State About Nasarawa State – Official Website of Nasarawa State

    The Lafia-Obi coal which is of high-medium volatile bituminous rank with estimated reserves of 128.3million tonnes could be used to establish small sized modular coal-fired Independent Power Plants (IPPs) for the generation of electricity in the state.

  • MULTISTAGE CAUSTIC LEACHING DE-ASHING OF … MULTISTAGE CAUSTIC LEACHING DE-ASHING OF …

    The coal site is about 81 km on the left side off Lafia-Obi highway. About 10 kg of the bulk samples of Lafia-Obi were removed from the top seams intersected at a depth of about 1 m from the ground surface in open pit mines A and B. 2.3 Sample preparation The clean bulk samples of Lafia-Obi samples A and B were mixed in 1:1 proportions.

  • A REVIEW OF TECHNICAL POTENTIAL FOR COAL … A REVIEW OF TECHNICAL POTENTIAL FOR COAL …

    within the known coal areas at Enugu, Ezinmo, Owukpa, Okabba , and Oggboyega and later in the seventies at Lafia-obi. Udi mine, located at the foot of a range of Enugu hills, was the scene of the first ever Nigerian mining activity in 1906. Thereafter Oghete, Iveallal and Asaba in that order were worked and exhausted between 1917 and 1967.

  • COAL MINING AND THE ENVIRONMENTAL IMPACT … COAL MINING AND THE ENVIRONMENTAL IMPACT …

    The impact of AMDs from Odagbo, Enugu and Lafia-obi coal mines in Kogi, Enugu and Nasarawa States, Nigeria respectively is reviewed in this section. A list of selected impacted areas in different continents is also presented in (Table 2) 3.1 Odagbo An analysis of drains from Odagbo coal mine was conducted. The levels of lead, nickel, cobalt,

  • (PDF) The Economic Cost of Dewatering of the "Hajvalia" Mine (PDF) The Economic Cost of Dewatering of the "Hajvalia" Mine

    Development and Mining of the Lafia-Obi coal , Nige ria. s.l., Wilolud Journals. Mallo SJ , 2011 ) Mine Dewatering:A veritab le component in mine cost analy sis in the development

  • (PDF) The Nigerian Coal Corporation: An Evaluation Of ... (PDF) The Nigerian Coal Corporation: An Evaluation Of ...

    The coal measures (Fig. 2) are concentrated within the Anambra Basin, but also occur in other rocks within Nigeria such as Lafia-Obi in Plateau state, Lamja, Gombe in Bauchi state and Afikpo in ...

  • Current Approaches for Mitigating Acid Mine Drainage ... Current Approaches for Mitigating Acid Mine Drainage ...

    Mar 29, 2013 Mallo SJ (2011) The menace of acid mine drainage: an impending challenge in the mining of Lafia-obi coal, Nigeria. Continental J Eng Sci 6:46–54 Google Scholar Martin J, Fyfe J (2011) Innovative closure concepts for xstrata nickel onaping operations, presentation in Sudbury 2011, mining and the environment international conference V, 25–30 ...