Producing sulphuric acid

Details Producing sulphuric acid Producing sulphuric acid

1978-02-06

1979-02-13

Edmundson, F.C.

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

204174, 423532, C01B 1774, C01B 1768, B01K 100

Patent

active

041395964

ABSTRACT:
This invention is based on the factors that both oxygen gas and oxides of sulphur as well as hydrogen sulphide are highly soluble in saturated, halogenated hydrocarbon liquids which are also dielectric liquids. The absorber liquid, saturated with dissolved oxygen and sulphur dioxide and/or hydrogen sulphide is then ozonated using the solvent or absorber liquid dielectric as the dielectric in an ozone generator. The sulphur trioxide produced by the ozone reacting with the sulphur dioxide and hydrogen sulphide in the presence of a catalyst (accelerates reactions) also carried in the liquid dielectric or, in the liquid stream at the ozonator, is then mixed with sufficient water to absorb the sulphur trioxide and produce the strength of sulphuric acid desired from the system. The sulphuric acid having a different specific gravity than the inert absorber liquid is gravity separated from the absorber liquid. The absorber liquid is returned to the scrubber or dissolver of the gaseous sulphur compounds for recycle use.

REFERENCES:
patent: 3458419 (1969-07-01), Fuhrmann et al.
patent: 3762133 (1973-10-01), Marriman et al.
patent: 3979193 (1976-09-01), Sikich
patent: 4049398 (1977-09-01), Vaseen

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