Manufacture Of Sulfuric Acid

------------------------------------------------- Manufacture of siemensic Acid: The contact Process siemensic erosive is do using the Contact process. treatic paneling is construct via sulphur dioxide. The raw materials be sulphur, air (oxygen) and water. at that place be three stages in the process. The main stages in the build of sulfuric acid Stage 1: S(s) + O2 (g) ? SO2 (g)  Sulphur dioxide is made by fire sulphur in air or oxygen in a combustion chamber. Sometimes agitate disulphide is burned in air instead. The sulphur dioxide is purified to remove impurities that would ill-use the throttle at later stages. Stage 2: Sulphur dioxide + Oxygen  Sulphur trioxide 2SO2 (g) + O2 (g)  2SO3 (g) The sulphur dioxide is then converted to sulphur trioxide. This step is called the Contact process. Sulphur dioxide is mixed with oxygen and passed everyplace a gun (Vanadi um(V) oxide: V2O5)) at 450°C at 1-2 atm. These are the optimum temperatures and pressures for the chemical reception and about 99% of the sulphur dioxide is converted into sulphur trioxide chthonian these conditions. This is a reversible reaction. The forwards reaction is exothermic. Increasing the temperature decreases the yield.

However, at very low temperatures, the count of reaction is very dimmed and the time required would eviscerate the process costly. A catalyst and temperature of 450°C are utilise to speed up the reaction while still achieving a reasonable yield. An augment in pressure would als o increase the yield and the rate, but the ! be of this would be high. The catalyst speeds up the rate of both the forward reaction and the backward reaction. The catalyst causes the reaction mixture to sift its equilibrium composition much quickly. This stage takes place in the converter (c.f. catalytic converters in cars). Stage 3: SO3 (g) + water supply (l) ? H2SO4 (l) Finally the sulphur trioxide is converted to sulphuric acid. Overall, this process dejection be...If you want to come out a full essay, order it on our website: OrderCustomPaper.com

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