Chemistry of inorganic compounds – Sulfur or compound thereof – Oxygen containing
Patent
1979-06-21
1982-02-09
Vertiz, O. R.
Chemistry of inorganic compounds
Sulfur or compound thereof
Oxygen containing
423531, 423540, 423542, 423648R, C01B 1748, C01B 302, C01B 1752, C01B 1790
Patent
active
043149820
ABSTRACT:
A two-stage process for the catalytic decomposition of H.sub.2 SO.sub.4 wherein H.sub.2 SO.sub.4 in vapor form is contacted in a first stage with a platinum group metal catalyst at temperatures between about 700.degree. K. and 970.degree. K. The platinum group metal catalyst is supported on a substrate of titania, barium sulfate, zirconia, silica, zirconium silicate or a mixture thereof, and at least about 40 percent of the H.sub.2 SO.sub.4 is decomposed to SO.sub.2. Vapors from the first stage enter a second stage where they contact a copper oxide and iron oxide catalyst at a temperature above 970.degree. K. The second stage catalyst is supported on a substrate of barium sulfate, zirconium oxide or titanium oxide.
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Norman John H.
Williamson David G.
General Atomic Company
Straub Gary P.
Vertiz O. R.
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