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Showing 1 to 20 of 217 for “"sulfides"”.
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The Phosphorus-Sulfides
Made available in DSpace on 2014-12-05T19:36:51Z (GMT). No. of bitstreams: 1 5801728.pdf: 4096577 bytes, checksum: 5a90ff345c0c36863afded7fd5c19bad (MD5) Previous issue date: 1958
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Chemistry of Carbon Sulfides
… nonlinear optical susceptibilities of carbon sulfides, along with other sulfur-rich metal complexes, were measured using the z-scan technique with a 35 ps pulsed laser at 527.5 nm. The measurements were done in solution, which was continuously pumped through the sample cuvette to avoid …
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Neighboring Group Participation in Some Cyclic Sulfides
Made available in DSpace on 2014-12-05T19:37:34Z (GMT). No. of bitstreams: 1 6100077.pdf: 13012156 bytes, checksum: eefccd1e5b722c67188530771751adc0 (MD5) Previous issue date: 1960
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Recirculated Process Water in the Flotation of Sulfides
Water scarcity has affected the availability, quality, and quantity of water available for use at water-intensive mineral processing concentrator plants. In response, more sustainable water reuse strategies have gained traction and proved beneficial by reducing used water effluents and freshwater …
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A methodology for studying denitrification by recently formed sulfides
… for investigating the effects of recently formed sulfides on denitrification. </p><p> In order to begin investigating the denitrification potential of recently formed sulfides, a 4-foot high, 6-inch diameter Plexiglas column was constructed, with tubing ports on the top and bottom. The column was …
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Studies on binary carbon sulfides and their metal complexes
Seven stable molecular carbon sulfides were known before we started our work. The reaction of Cp$\sb2$TiC$\sb3$S$\sb5$ with one equivalent of S$\sb2$Cl$\sb2$ gave two carbon polysulfides C$\sb3$S$\sb8$ (1) and C$\sb6$S$\sb{12}$ (2). The eclipsed conformation of C$\sb6$S$\sb{12}$ (2) is noteworthy.
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Oxidation of aqueous sulfides in the presence of manganese dioxide
… first order with respect to the disappearance of sulfides under both aerobic and anaerobic conditions. The reactions are both pH dependent with the maximum rate occuring at pH 8.. By examining the products of the reaction, polysulfides, with x between 2 and 5) were found to be significant …
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Mechanisms governing the growth, reactivity and stability of iron sulfides
… surface and bulk physical chemistry of iron sulfides explored in this work has implications beyond corrosion to other uses of these materials, including potential magnetic devices (Fe₁-xS) and earth-abundant photovoltaic and photoelectrochemical adsorbers (FeS₂).
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Studies on the Solvolyses and Rearrangements of Some Beta-Chloroalkyl Sulfides
Made available in DSpace on 2014-12-05T19:38:11Z (GMT). No. of bitstreams: 1 6303329.pdf: 5524788 bytes, checksum: be5cb26ebda7f1fd9c09104b31dcf8c9 (MD5) Previous issue date: 1962
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Thermodynamic properties of the group VIa sulfides: CrS, Mo2S3 and WS2.
Massachusetts Institute of Technology. Dept. of Metallurgy and Materials Science. Thesis. 1969. Sc.D.
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Hydrometallurgical processing of nickel sulfides with activated carbon in sulfuric acid medium
The growing global transition toward low‑carbon energy systems and electrification technologies has resulted inunprecedented demand for nickel and associated critical metals such as copper, cobalt, manganese, and chromium. Though primary mining remains the dominant supply pathway, increasing …
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Thermal histories of CB meteorites: Constraints from compositions and microstructures of sulfides
… and compositions of homogeneous and exsolved sulfides in metal grains in CB meteorites to constrain secondary thermal histories. We use SEM, EPMA, FIB, and TEM techniques to examine metal and sulfides, and quantify modal abundances of metal particles and sulfide inclusions using …
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The reaction of sodium azide with ethylene sulfides, ethylenimines and trimethylene oxide
Dissertation (Ph.D.)--University of Kansas, Chemistry, 1952.
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Investigating the role of dithiophosphate in the flotation of base metal sulfides
The behaviour of sodium diethyl dithiophosphate (SEDTP) in flotation systems is of major interest to the Platinum Group Mineral (PGM) and Base Metal Sulphide (BMS) industry. Operationally, SEDTP has proved to be a point of contention as there are conflicting views regarding the role of collector …
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Synthesis of binary, ternary, and alloyed metal sulfides by a solvent-less route
… discussed briefly. General applications of metal sulfides are discussed in detail in this thesis. The work demonstrated in chapter two focused on the synthesis of both ethyl xanthate complexes and (Ag+, Cd2+, Cu2+, Ni2+, Zn2+and Fe3+) doped CoS semiconductors. Thermogravimetric analyses of metal …
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Ripening Kinetics of Iron Sulfides in the Presence/Absence of a Carbonyl Group
… in the presence of carbonyls. Samples of iron sulfides were collected at predetermined intervals and analyzed by powder XRD. Two distinct ripening pathways were found: if a carbonyl (formaldehyde) was present, mackinawite ripened to greigite. If a carbonyl was absent, the mackinawite ripened to …
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