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  • 1
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    (Table 3, page 8) Chemical composition and physical cahracteristics of manganese nodules from the Pacific Ocean (1983)
    PANGAEA
    In:  Supplement to: Fuerstenau, D W; Han, K N (1983): Metallurgy and processing of marine manganese nodules. Mineral Processing and Extractive Metallurgy Review, 1(1-2), 1-83, https://doi.org/10.1080/08827508308952589
    Details
    Publication Date: 2023-08-28
    Description: This paper reviews the state of the art in processing and extraction of ocean floor manganese nodules. It briefly reviews the mining sites where the abundant rich nodules occur and also discusses the metal distribution in nodules in view of economical processing and extraction of these metal values. The paper discloses in a detailed manner the physical and chemical characteristics of nodules, including porosity, surface area, water content and the effect of temperature on crystal structure of major constituents of nodules. In the extraction aspect of nodules, the paper reviews two different extraction schemes revealed in the literature, namely hydrometallurgical treatment and pyrometallurgical treatment. The hydrometallurgical treatments include acid leaching, ammonia leaching, leaching with reducing agents and leaching after high temperature pre-treatments such as in sulfating rousting, while the pyrometallurgical processes include smelting, chlorination-vaporization and segregation. The paper also covers metal recovery processes from leach liquor. An economic survey of processing nodules has been made in terms of problems associated with metal-marketing, and impact of metal production from nodules on mineral industries.
    Keywords: 2P-50; 2P-51; 2P-52; Atomic absorption spectrometry (AAS); Cobalt; Copper; Date/Time of event; Density; DEPTH, sediment/rock; DOWNWIND-H; Dredge; DRG; DWHD16; Elevation of event; Event label; Horizon; HRS1; Iron; Latitude of event; Longitude of event; Manganese; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Porosity; Prospector; Prospector-63; Sample ID; SAN_JUAN_1963; SNJ-DH2; Specific surface area; Spencer F. Baird; Water in rock
    Type: Dataset
    Format: text/tab-separated-values, 66 data points
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  • 2
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    (Table 12-4, page 360) Percentage loss of water from manganese nodules (on a wet basis) at different temperatures (1977)
    PANGAEA
    In:  Supplement to: Fuerstenau, D W; Han, K N (1977): Extractive metallurgy (Chapter 12). in: Glasby, G.P. (Ed.), Marine Manganese Deposits. Elsevier, Amsterdam, Netherlands, 357-390, https://doi.org/10.1016/S0422-9894(08)71026-2
    Details
    Publication Date: 2023-08-28
    Description: This chapter discusses the formation and distribution of some metals in ocean-floor manganese nodules in the light of the observed data in the literature and thermodynamic and kinetic considerations of the oxidation of metal ions in the oceanic environment. There are, in general, two major schools of thought on the mechanism of incorporation of the minor elements such as nickel, copper, and cobalt with the major elements such as manganese and iron. One is the lattice substitution mechanism and the other the adsorption mechanism. If the mechanism is lattice substitution, extraction of the metal ions is not possible unless the lattice of the major elements is first broken and exchanged with other ions from the bulk solution. Consequently, the leaching behavior of minor elements should display a very close relationship with that of major elements.
    Keywords: 2P-50; 2P-51; 2P-52; Date/Time of event; DEPTH, sediment/rock; DOWNWIND-H; Dredge; DRG; DWHD16; Elevation of event; Event label; Horizon; HRS1; Latitude of event; Longitude of event; Loss on drying; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Prospector; Prospector-63; Sample ID; SAN_JUAN_1963; SNJ-DH2; Spencer F. Baird
    Type: Dataset
    Format: text/tab-separated-values, 30 data points
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    DATA PANGAEA
  • 3
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    Chemical composition of marine manganese nodules from four potential mining sites of the Pacific Ocean (2023)
    PANGAEA
    Details
    Publication Date: 2023-08-28
    Description: Manganese nodules were selected from various potential mining sites of the Pacific ocean. They were dried by heating at 110°C for 24 hours and ground to powder before their chemical analysis by atomic absorption spectrophotometry.
    Keywords: 2P-50; 2P-52; Atomic absorption spectrophotometry; Cobalt; Copper; Deposit type; DEPTH, sediment/rock; DOWNWIND-H; Dredge; DRG; DWHD16; Elevation of event; Event label; Geochemistry; Horizon; Identification; Iron; Latitude of event; Longitude of event; Manganese; manganese micronodule; manganese nodule; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; Pacific Ocean; Prospector; Prospector-63; SAN_JUAN_1963; sediment; SNJ-DH2; Spencer F. Baird
    Type: Dataset
    Format: text/tab-separated-values, 28 data points
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    DATA PANGAEA
  • 4
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    Chemical composition of marine manganese nodules from two potential mining sites of the Pacific Ocean (2023)
    PANGAEA
    Details
    Publication Date: 2023-08-28
    Description: Manganese nodules were selected from various potential mining sites of the Pacific ocean. They were dried by heating at 110°C for 24 hours and ground to powder before their chemical analysis by atomic absorption spectrophotometry.
    Keywords: Atomic absorption spectrophotometry; Cobalt; Copper; Deposit type; DEPTH, sediment/rock; DOWNWIND-H; Dredge; DRG; DWHD16; Elevation of event; Event label; Geochemistry; Horizon; Identification; Iron; Latitude of event; Longitude of event; Manganese; manganese micronodule; manganese nodule; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; Pacific Ocean; Porosity; SAN_JUAN_1963; sediment; SNJ-DH2; Specific surface area; Spencer F. Baird; Water in rock; Wet chemistry
    Type: Dataset
    Format: text/tab-separated-values, 20 data points
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  • 5
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    Chemical composition of marine manganese nodules from the Pacific Ocean (2023)
    PANGAEA
    Details
    Publication Date: 2023-08-28
    Description: Manganese nodules were selected from various potential mining sites of the Pacific ocean. They were dried by heating at 1000°C until total evaporation and ground to powder before their chemical analysis by atomic absorption spectrophotometry.
    Keywords: 2P-50; 2P-51; 2P-52; Atomic absorption spectrophotometry; Cobalt; Copper; Deposit type; DEPTH, sediment/rock; Dredge; DRG; Elevation of event; Event label; Geochemistry; HRS1; Identification; Iron; Latitude of event; Longitude of event; Manganese; manganese micronodule; manganese nodule; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; Pacific Ocean; Prospector; Prospector-63; sediment; Water in rock; Wet chemistry
    Type: Dataset
    Format: text/tab-separated-values, 32 data points
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  • 6
    Electronic Resource
    Electronic Resource
    Oxidation and Glucose Conjugation of Synthetic Abietane Diterpenes by Cunninghamella sp. II. Novel Routes to the Family of Diterpenes from Tripterygium wilfordii (1995)
    s.l. : American Chemical Society
    Journal of natural products 58 (1995), S. 68-73 
    Details
    ISSN: 1520-6025
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/np50115a008
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    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Adsorption behavior of cadmium and zinc ions on oxide/water interfaces (1993)
    s.l. : American Chemical Society
    Langmuir 9 (1993), S. 3635-3639 
    Details
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/la00036a046
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  • 8
    Electronic Resource
    Electronic Resource
    Acid interference in the determination of arsenic by atomic absorption spectrometry (1977)
    s.l. : American Chemical Society
    Analytical chemistry 49 (1977), S. 1829-1832 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac50020a047
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  • 9
    Electronic Resource
    Electronic Resource
    Two partial deletion mutations involving the same Alu sequence within intron 8 of the LDL receptor gene in Korean patients with familial hypercholesterolemia (1997)
    Springer
    Human genetics 〈Berlin〉 99 (1997), S. 155-163 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Twenty-eight unrelated persons heterozygous for familial hypercholesterolemia (FH) were screened to assess the frequency and nature of major structural rearrangements at the low-density lipoprotein (LDL) receptor gene in Korean FH patients. Genomic DNA was analyzed by Southern blot hybridization with probes encompassing exons 1–18 of the LDL receptor gene. Two different deletion mutations (FH29 and FH110) were detected in three FH patients (10.7%). Each of the mutations was characterized by the use of exon-specific probes and detailed restriction mapping mediated by long-PCR (polymerase chain reaction). Mutation FH29 was a 3.83-kb deletion extending from intron 6 to intron 8 and FH110 was a 5.71-kb deletion extending from intron 8 to intron 12. In FH29, the translational reading frame was preserved and the deducible result was a cysteine-rich A and B repeat truncated protein that might be unable to bind LDL but would continue to bind β-VLDL. FH110 is presumed to be a null allele, since the deletion shifts the reading frame and results in a truncated protein that terminates in exon 13. Sequence analysis revealed that both deletions have occurred between two Alu-repetitive sequences that are in the same orientation. This suggested that in these patients the deletions were caused by an unequal crossing over event following mispairing of two Alu sequences on different chromatids during meiosis. Moreover, in both deletions, the recombinations were related to an Alu sequence in intron 8 and the deletion breakpoints are found within a specific sequence, 27 bp in length. This supports the hypothesis that this region might have some intrinsic instability, and act as one of the important factors in large recombinational rearrangements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004390050331
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  • 10
    Electronic Resource
    Electronic Resource
    A new computational approach to the chemical potential (1990)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 93 (1990), S. 5167-5171 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: A new approach to the computation of chemical potential and free energy is presented. The basic idea is to correct the underestimate obtained by the particle-removal method. Application of the new technique to several different thermodynamic states of the Lennard-Jones (12,6) fluid shows that it is capable of providing reliable estimates of the chemical potential, even at high density where standard methods encounter computational difficulties.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.458653
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