2 edition of Methods for characterizing manganese nodules and processing wastes found in the catalog.
Methods for characterizing manganese nodules and processing wastes
Bibliography: p. 10.
|Statement||by Benjamin W. Haynes ... [et al.].|
|Series||Information circular ;, 8953, Information circular (United States. Bureau of Mines) ;, 8953.|
|Contributions||Haynes, Benjamin W.|
|LC Classifications||TN295 .U4 no. 8953, QE390.2.M35 .U4 no. 8953|
|The Physical Object|
|Pagination||10 p. ;|
|Number of Pages||10|
|LC Control Number||83600240|
Considerations in characterizing economic deposits.- Exploration sequence.- Present situation.- 4 Technology for Manganese Nodule Prospecting and Exploration.- Methods and equipment.- Assessment of technology for prospecting and target area exploration.- 5 Technology for Manganese Nodule Mining.- Hydraulic mining system COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.
Polymetallic nodules are a potential source of industrially demanded metals such as Ni, Co, Cu, and Mo (up to 3 wt %). Even if there is no deep-sea mining of manganese nodules today, a forecasted gap between metal demand and supply as well as continuously high metal prices may make seabed mining economically viable in the future. Up to now, a well-established industrial-scale extraction method. Scientists recently discovered a large batch of manganese nodules on the floor of the Atlantic Ocean.1 These metallic pellets provide strong evidence that most seafloor sediments were deposited rapidly, not slowly and gradually over millions of years. Are these nodules evidence of the Genesis Flood? Manganese nodules are found scattered on the ocean floor.
Metallurgical ContentThe Manganese Ore Processing PlantCrushing and Sampling of Manganese RockConcentration—Gravity Methods of treating Manganese OreManganese Ore Concentration by FlotationMODERN MANGANESE PLANTManganese Ore Treatment SummaryRecovering Manganese using GravityThe Manganese Gravity Recovery Circuit FlowsheetOre Bin and FeederGrizzlyPrimary Manganese . maximum of °. The nodule coverage is on average kg/m2 with a minimum of kg/m2 and maximum of kg/m2 (dry weight). The total tonnage of nodules is about 4 Mt with , t for copper, nickel, and cobalt tonnage and 1,, t for manganese.” (Rahn ) Ordinary kriging interpolation was applied to predict nodule.
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Additional Physical Format: Online version: Methods for characterizing manganese nodules and processing wastes. [Avondale, Md.]: U.S. Dept. of the Interior, Bureau.
Additional Physical Format: Print version: Methods for characterizing manganese nodules and processing wastes. [Avondale, Md.]: U.S. Dept. of the Interior, Bureau of.
The Bureau of Mines conducted research to provide technical information needed to devise waste management plans for the processing of manganese nodules. Studies included summary descriptions of Pacific manganese nodules, process options and flowsheets, methods for characterizing nodules and their tailings, and results of analyses of laboratory.
Analytical procedures are described for the quantitative determination of 16 elements (as, ba, be, cd, CO, cr, cu, fe, mn, mo, ni, pb, sb, se, tl, and zn) and 7 ionic species (nh4+, co, cl- f- no3- po, and so), identification of major and minor mineral components, and measurement of physical properties associated with manganese nodules and nodule processing reject waste materials.
A method is provided for processing raw manganese nodules for the selective recovery of metal values of nickel, copper, cobalt and zinc contained therein by hydrometallurgical means.
The raw nodules are suspended in water or dilute wash solution to form a suspension. The suspension and sulfuric acid are charged to a pressure vessel to provide a solid-liquid suspension of nodules and.
This paper presents Methods for characterizing manganese nodules and processing wastes book overview of recent research completed by the Bureau of Mines for manganese nodules and crusts collected from the Pacific Ocean.
Included are elemental and mineralogical compositional analyses, methods of analysis for the minerals and wastes from processing. Manganese nodules are the potential sources of base metals like copper, nickel, cobalt and manganese.
Considerable research and development effort have been made all over the world to extract the metals from the manganese nodules during the past four decades. Various manganese nodule processing routes developed on bench and pilot scale have been discussed in the above sections.
Some important aspects of Indian processes and those developed by different metallurgical consortia are given in Table 7. Most of the published investigations have been concerned with the recovery of Ni, Cu, and Co and less. J.D. Usher et al, Study of Deep Seabed Mining: Selective Minesite Considerations for Commercial Recovery of Manganese Nodules from the Ocean Floor, Offshore Technologies, Inc., Hayes, VA, 42 Arthur D.
Little, Inc, Technological and Economic Assessment of Manganese Nodule Mining and Processing, Cambridge, MA, Novemberp 45; A.L.
Metals of interest in deep-sea nodules are especially copper, cobalt and nickel. Due to the high abundance of nodules on the deep-sea floor, the reserves for those metals are significant [3,4].Furthermore, the recovery of manganese, molybdenum and vanadium is of interest or at least the enrichment of a marketable by-product can add value to an extraction process .
Manganese oxide containing waste material such as manganese cake, a byproduct from Mn-nodule processing operation can be effectively utilized for production of EMD through H 2 SO 4 leaching route using a cheap cellulosic reductant like waste newspaper.
Whereas iron removal is possible by pH adjustment alone without Mn(II) loss, removal of other. The mineral composition of manganese-bearing minerals is dependent on how the nodules are formed; sedimentary nodules, which have a lower Mn 2+ content than diagenetic, are dominated by Fe-vernadite, Mn-feroxyhyte, and asbolane-buserite while diagenetic nodules are dominated by buserite I, birnessite, todorokite, and asbolane-buserite.
The growth types termed diagenetic and hydrogenetic. It is concluded that the recovery of manganese from nickel laterite process effluents which contain 1–5 g/L Mn offers a growing low cost resource of manganese.
Part II of this review considers the application of various solvent extraction reagents and precipitation methods for treating such manganese liquors. Manganese processing, preparation of the ore for use in various products. Manganese (Mn) is a hard, silvery white metal with a melting point of 1, °C (2, °F).
Ordinarily too brittle to be of structural value itself, it is an essential agent in steelmaking, in which it removes impurities such. More than 25 million tons of manganese are mined every year. Most manganese mining occurs in open pits. Although there are processes in place to mine manganese nodules in the ocean floor, they cannot complete with land-based mining production.
Once the ore is mined, it’s transferred to a processing plant for electrolytic processing or smelting. A continuously growing demand for valuable non-ferrous metals and therefore an increase in their prices at the metal exchanges makes it necessary and profitable to investigate alternative metal resources.
Polymetallic deep-sea nodules contain cobalt, copper, manganese, molybdenum and nickel, and are highly abundant on the sea floor. Developing a metallurgical process to recover the metal.
Full text of "Description of manganese nodule processing activities for environmental studies / prepared by Dames and Moore and EIC Corporation for U.S. Department of Commerce, National Oceanic and Atmospheric Administration, Office of Marine Minerals" See other formats.
Proceedings of the International Seminar on Mineral Processing Technology -Chennai, India. 89 - Treatment of Metal Wastes Containing Ni, Co and Mn with Deep-Sea Manganese Nodules K.H. Park and C.W. Nam Korea Institute of Geoscience & Mineral Resources, 30 Gajeong-dong, Yuseong-gu, Daejeon,Korea Abstract.
Manganese nodules also called polymetallic nodules because they are associated with large reserves of metals, such as Cu, Ni, Co, Fe and Mn, the latter being the most abundant, with an average. and cobalt. Aftermanganese was added to increase total revenue and re duce the amount of waste. The technologies are of two types: hydrometal-lurgy, in which the metals are leached from the nodules by acid (hydrochlo-r ic or sulphuric) or basic (ammonia) reagents, and smelting, in which the h.
Additional Physical Format: Online version: Laboratory processing and characterization of waste materials from manganese nodules.
[Washington, D.C.]: U.S. Dept. of.Methods for characterizing manganese nodules and processing wastes. Information circular/ and measurement of physical properties associated with manganese nodules and nodule processing reject waste materials.
Compound identification methods discussed include X-ray diffraction, infrared spectroscopy, scanning and transmission electron.Manganese levels in natural waters rarely exceed 1 mg/L, but levels of mg/L are sufficient to cause the taste and staining problems.
The recommended allowable manganese level in public water supplies is mg/L. Two methods for manganese determination are used in test procedures.