Manufacture Of Sulfuric Acid

------------------------------------------------- Manufacture of atomic number 16ic Acid: The contact Process sulfuric erosive is do using the Contact process. atomic number 16ic erosive is construct via process dioxide. The raw materials be southward, air (oxygen) and water. on that point argon three stages in the process. The main stages in the retrace 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 fight disulphide is burned in air instead. The sulphur dioxide is purified to remove impurities that would reproach 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 o ver a catalyst (Vanadium(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 out front reaction is exothermic. Increasing the temperature decreases the yield. However, at very low temperatures, the place of reaction is very dimmed and the time required would accommodate the process costly. A catalyst and temperature of 450°C are utilize to speed up the reaction while still achieving a reasonable yield. An add-on in pressure would also 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 to a greater extent quickly. This stage takes place in the converter (c.f. catalytic converters in cars). St age 3: SO3 (g) + water supply (l) ? H2! SO4 (l) Finally the sulphur trioxide is converted to sulphuric acid. Overall, this process dejection be...If you want to overtake a full essay, order it on our website: OrderCustomPaper.com

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