Results 21 to 30 of about 7,811 (229)
Revisiting “Tin in South-eastern Europe?” [PDF]
Starinar, 2020 The important role of the Balkans in the origin and development of metallurgy is well established with respect to copper. In addition, Aleksandar Durman, in his 1997 paper “Tin in South-eastern Europe?”, essentially initiated studies into the ...
Powell Wayne +4 more
doaj +1 more source
Optimization on the purification of cassiterite from low-grade cassiterite concentrate
IOP Conference Series: Earth and Environmental Science, 2020 Abstract Optimization on the purification of cassiterite from low-grade cassiterite concentrate has been successfully done. The concentrate used came from the mine site in the Delas area, Bangka Island with an element content of Sn was 31.60% wt and the impurity phases including zircon, ilmenite, quartz, hematite, and monazite.
D Y Dalimunthe, H Aldila, A Nuryadin
openaire +1 more source
Benefits of cassiterite mining by artisanal miners in Jos Plateau, Nigeria
Bulletin of the National Research Centre, 2020 Background Artisanal mining of cassiterite is one tedious activity that is done daily. It involves daily extraction of economic mineral deposits through the use of primitive tools like shovel, digger, and spade.
Clinton Ebimobowei Ebikemefa
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Mineralogy and distribution of critical elements in the Sn–W–Pb–Ag–Zn Huanuni deposit, Bolivia [PDF]
, 2019 The polymetallic Huanuni deposit, a world-class tin deposit, is part of the Bolivian tin belt. As a likely case for a “mesothermal” or transitional deposit between epithermal and porphyry Sn types (or shallow porphyry Sn), it represents a case that ...
Alfonso, Pura +12 more
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Conflict Minerals Legislation: The SEC’s New Role as Diplomatic and Humanitarian Watchdog [PDF]
, 2012 Buried in the voluminous Dodd-Frank Wall Street Reform and Consumer Protection Act is an oft-overlooked provision requiring corporate disclosure of the use of “conflict minerals” in products manufactured by issuing corporations. This Article scrutinizes
Woody, Karen E.
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Записки Горного института, 2019 The research focused on the composition of tourmaline from tin ore deposits and ore occurrences within the Verkhneurmiysky ore cluster in the Amur region. The aim of the study is to determine the indicative signs of tourmaline from cassiterite-quartz and
V. I. Alekseev, Yu. B. Marin
doaj +1 more source
Corrosion of bronzes by extended wetting with single versus mixed acidic pollutants [PDF]
, 2014 The corrosion of bronzes was examined in the context of single-acid versus mixed-acid (as in urban acid rain) solutions. Two bi-component bronzes (copper with either 3% Sn or 7% Sn) that closely represent those of historic artifacts were immersed for ...
Adriaens, Mieke +3 more
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GeoScience Engineering, 2022 Mining activities have resulted in a large volume of tailings containing a certain proportion of lost minerals, making them a potential reprocessing opportunity, and information on tailings and mineral reprocessing is often scarce.
Jules UWIZEYIMANA +4 more
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Inner-sphere complexation of cations at the rutile-water interface: A concise surface structural interpretation with the CD and MUSIC model [PDF]
, 2009 Acid–base reactivity and ion-interaction between mineral surfaces and aqueous solutions is most frequently investigated at the macroscopic scale as a function of pH.
Hiemstra, T. +3 more
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Combined X-ray diffraction and diffuse reflectance analysis of nanocrystalline mixed Sn(II) and Sn(IV) Oxide Powders [PDF]
, 2005 Nanocrystalline mixtures of Sn(II) and Sn(IV) oxide powders, potential gas sensor materials, are synthesized via a simple precipitation route using SnCl(2) as the precursor.
Deng, Hongmei, Hossenlopp, Jeanne
core +2 more sources