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.
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Showing 1 to 20 of 229 for “"Sulfuric"”.
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Esterification with sulfuric acid
Thesis (M.A.)--Boston University
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Barium carbonate treatment of sulfuric acid wastewater
Two methods of removing sulfates from sulfuric acid wastewater through the addition of barium carbonate and the formation of a barium sulfate precipitant were investigated. Optimization of barium carbonate dosage, reaction time and mixing conditions was accomplished for each method prior to …
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Sulfuric acid and amines in atmospheric clustering : first-principles investigations
… in the presented cluster studies is played by sulfuric acid. Sulfuric acid is known to correlate well with the aerosol particle formation observations in most locations. However, it is further known that sulfuric acid alone cannot be responsible for the ambient observations. In the past, …
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Liquid-liquid extraction of rare earth elements from sulfuric acid
This thesis is concerned with the liquid-liquid extraction and separation of Y, Ce, La, binary mixtures, and ternary mixtures as well as synthesis of novel amide ligands for the extraction of rare earth elements. Chapter I is the general introduction of the practical process and applications of …
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Formal Potential of the Chromate-Chromic System in Sulfuric Acid
… in the media, of various concentrations of sulfuric acid.
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Kinetics of dissolution of zinc sulfide in aqueous sulfuric acid
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Metallurgy, 1962.
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The Formal Redox Potential of the Permanganatemanganous System in Sulfuric Acid
… of the permanganate-mangonous system in sulfuric acid. All investigations undertaken were to secure more accurate standard potentials for the manganous-manganese dioxide system and the manganese dioxide-permanganate system in order to calculate the thermodynamic oxidation potential of the …
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Heterogeneous reactions on sulfuric acid films with implications for ozone depletion
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1996.
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A study of conversion in the manufacture of contact sulfuric acid
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1927.
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Metallurgical characterization of self catalytic structural materials for sulfuric acid decomposition
… construction of a heat exchanger designed for sulfuric acid decomposition. This type of heat exchanger is a key component to hydrogen generation by the thermochemical sulfur-iodine water-splitting process, a future technology that promises efficient hydrogen production if coupled to a …
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Hydrometallurgical processing of nickel sulfides with activated carbon in sulfuric acid medium
… strongly acidic and oxidative environments. Sulfuric acid was selected as the principal lixiviant due to its industrial relevance, while ferric ions were identified as a critical oxidant facilitating sulfide mineral breakdown. Sequential extraction and batch leaching experiments demonstrated …
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Temperature modeling and control of the sulfuric acid plant in an industrial smelter
… laden with sulfur dioxide (SO2). Production of sulfuric acid (H2SO4), from off-gas laden with SO2 is one of the methods used at smelters to reduce the amount of SO2 being released into the atmosphere. The acid plant consists mainly of a catalytic converter, absorption towers and a network of …
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Wet-spinning of neat single-walled carbon nanotube fiber from 100+% sulfuric acid
… the first time, it has been reported that liquid sulfuric acid forms shell structure while exposed to SWNTs.
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Geochemical and mineralogical impacts of sulfuric acid on clays between pH 5.0 and -3.0
… mine drainage systems at pH > 1.0. The impact of sulfuric acid leachate characterized by pH < 1.0, including potentially negative pH values on the geochemistry and mineralogy of clays is, however, not clear. To address this deficiency a series of batch and diffusion cell studies, investigating the …
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Electropolishing of Niobium in Sulfuric Acid-Methanol Electrolytes: Development of Hydrofluoric Acid-Free Electrolytes
… project, HF-Free EP of Nb was performed in sulfuric acid-methanol electrolytes. Sulfuric concentrations of 0.1 M, 0.5 M, 1 M, 2 M, and 3 M were used. Cyclic voltammetry and potential hold experiments were performed in cells of both two-electrode and three-electrode setups to evaluate the …
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Dynamic modelling of catalytic SO2 converter in a sulfuric acid plant of an industrial smelter
… tightened regulations on SO2 emissions, a sulfuric acid plant has become a crucial part of industrial smelters. It converts environmentally harmful SO2, which is generated in smelter furnaces, roasters, and Cu-reactors, into commercially beneficial sulfuric acid. This method is recognized …
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Optimum operating temperature for refining light oil with sulfuric acid in coke oven by-product recovery
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1943.
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