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Showing 1 to 8 of 8 for “"Sulfuric acid solution"”.
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Modeling, Simulation, and Optimization of an Electroorganic Process Flowsheet
… alcohol to methyl ethyl ketone in an aqueous sulfuric acid solution. Experimental measurements were performed to calculate rate constants for an adsorption isotherm for butanol on platinum in order to elicit a kinetic expression for use in the electrochemical reactor model. The entire process …
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Advanced electrochemical characterization of copper deposition
… of copper metal in a concentrated sulfuric acid solution is reported to occur through a four-step mechanism: (I) the dehydration of Cu2+ (H2O)6, (II) the reduction of Cu2+ to cu+, (III) the dehydration cu+ (H2O)6-x, (IV) the reduction of Cu+ to copper metal. The dehydration steps …
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ELECTROLYTIC DEPOSITION OF MgO ON STAINLESS STEEL SUBSTRATE
… The substrate was electropolished in a 15% sulfuric acid solution before immersing in the electrochemical bath. Electrolytic processing parameters such as deposition time and voltage were optimized and others like the distance between anode and cathode, concentration of magnesium ions in the …
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Pickling of steel
… of black stovepipes steel in 18.3 percent sulfuric acid solution where the rate of attack on the bare metal at 75°F is 0.097 milligrams per square inch per minute, while at 142°F the rate of attack is 0.51 milligrams per square inch per minute. 2. The time required to remove the surface …
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Geochemical Reactions in Unsaturated Mine Wastes
… generates huge amounts of waste that can lead to acid mine drainage (AMD). Most of these mine wastes occur as large piles that are open to the atmosphere so that air and water vapor can circulate through them. This study addresses the reactions and transformations of the minerals that occur in …
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Crystallization of calcium sulphate during phosphoric acid production : improving filtration through improvement in particle shape and size distribution
The production of phosphoric acid from phosphate mineral rock involves the addition of phosphate rock to a concentrated sulfuric acid solution. The induced reactive crystallization process produces a side product of calcium sulfate hydrates, which become the filter media in the subsequent acid …
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Lifetime Prediction and Durability of Elastomeric Seals for Fuel Cell Applications
… (DI) water, 50v/50v ethylene glycol/water solution, and 0.1M sulfuric acid solution. Dogbone samples were strained to different levels in the custom fixture and submerged in liquid solutions at 90°C and in air at 90°C and 120°C. It was observed that mechanical properties such as tensile …