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DEOLA

DEOLA

Tuesday, June 23, 2015

PURITY FROM IMPURITY!

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When sins assails ya, don't be bitter; but rock forward, and remember how, by the chemistry of action of contact process, sulfuric acid was manufactured from impurities! “Come now, and let us reason together,” saith the Lord. “Though your sins be as scarlet, they shall be as white as snow; though they be red like crimson, they shall be as wool." ==Isaiah 1:18.
SO2 is obtained by burning sulphur or by heating iron pyrite (FeS2
) in pyrite burner.
S + O2 = SO2; 4FeS2 + 11O2 = 2Fe2O3 + 8SO2
Because, SO2 thus formed, contains a number of impurities such as dust particles, arsenous oxide, vapours, sulphur etc. These impurities, in order to de-enhance catalyst poisoning, must be removed by passing through the dust chamber, washing tower, drying tower, and Tyndall box. Thence after, the pure SO2 is oxidized:
2SO2 + O2 = 2SO3 + 45Kcal. The formed SO3 is absorbed in conc. H2SO4:
SO3 + H2SO4 = H2S2O7 (OLEUM). The resulting oleum is collected, and diluted in H2O: H2S2O7 + H2O = 2H2SO4. ========DEOLA=====================

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