Recovery of H.sub.2 SO.sub.4 acid

Details Recovery of H.sub.2 SO.sub.4 acid Recovery of H.sub.2 SO.sub.4 acid

1976-10-19

1979-05-22

Vertiz, O. R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ivb metal

423 85, 423143, 423531, 423517, C01G 2300, C01B 1790

Patent

active

041559843

ABSTRACT:
Process for the recovery of H.sub.2 SO.sub.4 from dilute sulfuric acid solutions containing combined acid sulfates by heating these solutions in the presence of excess ammonium sulfate to a temperature from between about 100.degree. and 160.degree. C. until a concentration of free H.sub.2 SO.sub.4 between 50 and 59% by weight is obtained to precipitate the combined acid sulfates.

REFERENCES:
patent: 3057685 (1962-10-01), Kamlet
patent: 3984312 (1976-10-01), Dulin et al.

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