Process for producing fluosulfonic acid

Details Process for producing fluosulfonic acid Process for producing fluosulfonic acid

1974-11-07

1976-05-18

Stern, Edward

Chemistry of inorganic compounds

Halogen or compound thereof

Sulfur containing

423512R, C01B 1745, C01B 1746

Patent

active

039579590

ABSTRACT:
Fluosulfonic acid (HSO.sub.3 F) is made by the steps of (1) introducing liquid SO.sub.3 and liquid HF separately into a stream of fluosulfonic acid to produce additional fluosulfonic acid, (2) cooling the fluosulfonic acid, and (3) recycling fluosulfonic acid to step (1). Anhydrous liquid HF and liquid SO.sub.3 are added to the fluosulfonic acid in step (1) in such proportions as to achieve a desired purity in the resulting product.

REFERENCES:
patent: 2430963 (1947-11-01), Stephenson et al.
patent: 2447476 (1948-08-01), Kulka

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