METHOD OF PREPARING SULFURIC ACID Russian patent published in 1999 - IPC

Abstract RU 2136586 C1

FIELD: chemical industry. SUBSTANCE: sulfuric acid is prepared by contact method. SO₂-containing gas is dried and SO₂ is oxidized in contact apparatus under non-stationary conditions. Direction of gas stream admitted into catalyst bed is varied alternately. SO₃ is absorbed by sulfuric acid and final product is recovered. Gas containing 0.5-1.2 g/cubic m of sulfuric acid vapors is used for absorption purposes. EFFECT: reduced liberation of sulfuric acid mist and fewer mist outbursts into atmosphere. 3 ex

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RU 2 136 586 C1

Authors

Khuves Ja.Eh.

Sushchev V.S.

Dates

1999-09-10—Published

1998-04-07—Filed