In this research oxidation kinetic panceuo.s (P.S) by S2O8-2 at the presence of AgNO3 ascatalyst was studied.The method was spectrophotometer following absorption spectrum (P.S) inwave length of 518 nm. After improving the condition such as PH, P.S concentration, K2S2O8concentration, ionic strength, temperature, rate constant, activation energy, constant frequency,order reaction and thermo dyna...

We present simple explicit estimates for the apparent reaction rate constant for threemolecular reactions. For small concentrations and d > 1, it depends only on the diffusion coefficients and sizes of the particles. For small concentrations and d ≤ 1, it is also time – dependent. For large concentrations, it gains the dependence on concentrations. Typeset using REVTEX 1

kinetic parameters of the ammonolysis reaction of dichloroethane in nonaqueous media are studied and the optimum reaction conditions are reported. a suitable reactor for running the reaction under high pressure in the range of 50 to 500 °c is designed. kinetic behaviours of the system is studied and other reaction parameters such as rate constant, kinetic order, and activation energy are determ...

the hydrolysis of sodium borohydride as a source of hydrogen gas is studied at different mole ratios of h+ to nabh4. the sulfonated porous carbon (spc) is used as a source of hydrogen ion and catalyst. it is found that the sulfonated porous carbon exhibits high activity for the hydrolysis of nabh4 to generate hydrogen gas at room temperature in comparison to amberlyst-15 and nafion-nr50. the ki...

Leaching of molybdenite concentrate with hydrogen peroxide in sulfuric acid solution was investigated to determine the effects of reaction time, reaction temperature, H2O2 concentration, H2SO4 concentration, pulp density and rotation speed on molybdenum extraction and molybdenite dissolution kinetics, using the Taguchi method. From analysis of var...