Production of liquid sulfur trioxide

Details Production of liquid sulfur trioxide Production of liquid sulfur trioxide

1975-04-24

1977-09-06

Vertiz, O. R.

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

423522, 423543, C01B 1750, C01B 1776

Patent

active

040468666

ABSTRACT:
A process for production of liquid sulfur trioxide in which sulfur is combusted with oxygen in one stage at a furnace outlet temperature of between about 1000.degree. F and about 2700.degree. F, and the resulting sulfur dioxide-containing gas is subjected to multistage catalytic conversion to sulfur trioxide, the sulfur trioxide being recovered by conventional condensaton techniques. Substantially all the uncondensed gases from the sulfur trioxide condensation step are recycled to the combustion step.

REFERENCES:
patent: 1520093 (1924-12-01), Shapleigh
patent: 2510684 (1950-06-01), Cathala
patent: 2879135 (1959-03-01), Haltmeier
patent: 3455652 (1969-07-01), James
patent: 3755549 (1973-08-01), Guth
patent: 3803297 (1974-04-01), Guth et al.
patent: 3907979 (1975-09-01), Jenniges

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