Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 19 of 19 for “"Bauxite"”.
-
Should Jamaica lower the bauxite levy?
Includes bibliographical references.
-
The mineralogy of a drill core of Arkansas bauxite
Thesis. (Sc.D.) Massachusetts Institute of Technology. Dept. of Geology, 1947.
-
Impact of the transportation cost on "Los Pijiguaos" bauxite project, The
Includes bibliographical references.
-
INVESTIGATION OF RESIDUAL MINERAL CONTENT OF BAUXITE STOCKPILES, SALINE MINING DISTRICT, ARKANSAS, U.S.A.
<p>The former mining town of Bauxite is in the Saline County Mining District, in central Arkansas. Bauxite is located approximately 40 km (25 mi) southwest of Little Rock just east of Benton, Arkansas. This area contains extensive deposits of bauxite ore and nepheline syenite previously mined by …
-
The effects of micro and nano size bauxite particles in modified asphalt binders and asphaltic mixtures
… aims to evaluate the effects of Malaysian Micro bauxite powders (MBP) and Nano bauxite powders (NBP) with 3%, 5% and 7% by mass of bitumen. Conventional bitumen 80/100 penetration grade was used as the base binder. The modified asphalt binder was evaluated on the fundamental physical properties. …
-
Characterization of Residual Mineral Content of Bauxite Stockpiles in Saline County, Arkansas: An XRD Analysis Approach
… led U.S. alumina production and hosts extensive bauxite and nepheline syenite deposits. With the depletion of highgrade ore, renewed interest in bauxite stockpiles has focused on critical mineral potential. Previous X-ray Fluorescence studies have identified critical elements in significant …
-
Évaluation des outils de gouvernance minière dans l'exploitation responsable des ressources minières: étude de cas portant sur le réseau environnement et bauxite (REB) de Guinée
… de l’environnement) dans l’exploitation de la bauxite se traduit par l’exploitation anarchique de la bauxite, l’expropriation des terres ancestrales, la dégradation de l’environnement. Ces problèmes relevant de l’exploitation de la bauxite à Boké nécessitent une évaluation des outils de …
-
Investigation of closure techniques for the Rusal Aughinish Bauxite Residue Disposal Area (B.R.D.A.) and the impact on the surrounding environment post-closure
… company submitted an application to extend the Bauxite Residue Disposal Area (B.R.D.A.) by another 80 hectares in 2006. Space to store residue was estimated to run out in 2011, thus requiring the construction of the extra 80 hectares which needed planning permission and an extension of the …
-
Enhanced earthing performance by improved design and grounding material properties
… and physical composition which is; kaolin, sand, bauxite and coal. These materials were investigated using the morphology test, element composition test and correlation between water content and material resistivity test. Fabricated E.G.E was tested under lightning flashover conditions in a HV …
-
Beyond the resource curse : mineral resources and development in Guinea-Conakry
… of plenty". Despite its natural resources (bauxite, iron ore, diamond, gold and hydropower), Guinea has been unsuccessful in marshaling and leveraging these resources to produce socioeconomic development. The critical challenge for Guinea, just like many resource-rich countries, is …
-
Evaluation of management practices and remediation techniques for improving water quality in agricultural systems
… agricultural effluents, and the effectiveness of bauxite residues (red and brown muds) in reducing soluble nutrient/pollutant release from manure-impacted soils. All the selected water quality parameters were determined using EPA-approved analytical methods. The RR technique exported lower total …
-
Analysis of historical trends in material production and price volatility
… strongest with volatilities in raw material (bauxite and iron ore) price, with volatilities in steel also correlating comparatively with production and consumption dynamics. Overall, this study demonstrated the effectiveness of CV as a quantitative metric to assess historical volatilities and …
-
Synthesis and Characterisation of Layered Double Hydroxides (LDHs) Using Red Mud and their Environmental Applications
… disposal, (2) serve as alternative resources. Bauxite residue, also known as red mud (RM), the aluminium industry’s largest solid waste stream, is the by-product from the Bayer process of bauxite ore digestion. Worldwide, there are around 80 active Bauxite processing plants and over 150 million …
-
The implementation of the socio-economic rights provisions of the African Charter on Human and Peoples’ Rights at the national level : a case study of Democratic Republic of Congo (DRC)
… as cobalt, vanadium, manganese, phosphate, and bauxite); iron ore; and precious tropical rain forests. This situation is due to certain reasons, including: bad governance; mismanagement of public finances by political authorities at the expense of the majority; lack or weakness of the …
-
Extraction and recovery of valuable elements from Red Mud through biohydrometallurgy
… This consists in alumina extraction from bauxite by chemical dissolution. The main waste produced through the Bayer process is called Red Mud (RM). RM might be environmentally dangerous due to its high alkalinity (the pH in fact ranges between 10 and 12.5) and the presence of toxic …
-
Use of electrokinetic and reactive barriers to treat heavy metals-contaminated soils
… of transformed red mud (TRM) (a by-product of bauxite refinement for alumina production) for the remediation of low permeability contaminated soils by chromium and arsenic was investigated. The combination of EK with RB is a possible way in order to enhance EK removal of Cr and As that are …
-
ΣΥΜΒΟΛΗ ΣΤΗ ΒΕΛΤΙΣΤΟΠΟΙΗΣΗ ΤΗΣ ΕΚΧΥΛΙΣΗΣ ΤΟΥ ΔΙΑΣΠΟΡΙΚΟΥ ΒΩΞΙΤΗ
THE ALUMINIUM IN BAUXITES OCCURS IN THREE DISTINCT MINERALS: GIBBSITE, BOEMITE, AND DIASPORE. THE LEACHING CONDITIONS DEPEND ON THE MINERALOGY OF THE BAUXITES. THE DIASPORIC BAUXITES NEED STRONGER LEACHING CONDITIONS THAN THE OTHER TYPES OF BAUXITES. THE AIM OF THIS WORK WAS TO STUDY THE MAIN …