Production of sulfur trioxide, sulfuric acid and oleum

Details Production of sulfur trioxide, sulfuric acid and oleum Production of sulfur trioxide, sulfuric acid and oleum

1982-08-26

1987-02-17

Straub, Gary P.

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

423522, 423529, 422161, C01B 1774, C01B 1748

Patent

active

046438874

ABSTRACT:
A feed gas mixture with SO.sub.2 partial pressure of at least about 0.5 atmosphere and an O.sub.2 :SO.sub.2 mole ratio of between about 0.7:1 and about 1:1 is passed in plug flow through a packed bed of conversion catalyst. The catalyst bed is cooled to produce a temperature profile including a first zone of increasing temperature, a second zone of substantially constant temperature and a third zone of declining temperature. The exit temperature is sufficiently low for high equilibrium conversion values. The effluent is cooled to condense liquid sulfur trioxide, while the sulfur trioxide remaining in the gas stream can be absorbed into oleum and/or sulfuric acid. Enriched oleum can be prepared by blending condensed sulfur trioxide into oleum or sulfuric acid.

REFERENCES:
patent: 652119 (1900-06-01), Knietsch
patent: 2510684 (1950-06-01), Cathala
patent: 3282645 (1966-11-01), Mandeuk
patent: 3475119 (1969-10-01), Hummel
patent: 3803297 (1974-04-01), Guth et al.
patent: 3997655 (1976-12-01), Reh et al.
patent: 4213958 (1980-07-01), Cameron et al.
patent: 4296088 (1981-10-01), Stauffer
Snowball, A. F., A Cyclic Process of Sulphuric Acid Manufacture at Trail BC, Canadadiaa Chemistry & Process Industries, Dec. 1947, pp. 1110-1114.

Affiliated with

Also associated with

Rating

Production of sulfur trioxide, sulfuric acid and oleum does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Production of sulfur trioxide, sulfuric acid and oleum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of sulfur trioxide, sulfuric acid and oleum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1938229