Process for the production of sulfuric acid using coated catalys

Details Process for the production of sulfuric acid using coated catalys Process for the production of sulfuric acid using coated catalys

1984-07-30

1985-11-12

Straub, Gary P.

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

423536, 423242, 422161, 502 62, C01B 1774, C01B 1798, C01B 1748

Patent

active

045527440

ABSTRACT:
A process is described for producing sulphuric acid from sulphur dioxide (SO.sub.2) wherein two fluid streams, in the form of a gaseous SO.sub.2 gas and oxygen (air), and a liquid, primary sulphuric acid and water, are contacted with each other and a catalyst assembly at a temperature in the range 150.degree. to 280.degree. C., the catalyst assembly comprising, for example, non-combustible, sulphuric acid resistant, porous ceramic supports with outer, porous membrane coatings on them of, say, polytetrafluorethylene, which is a process temperature and sulphuric acid resistant, water repellent, gaseous sulphur dioxide and oxygen gas permeable, high molecular, organic polymeric material, and platinum crystallites dispersed on the support in the polytetrafluorethylene so that:

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