Inhibition of aluminum corrosion by sulfuric acid solutions

Details Inhibition of aluminum corrosion by sulfuric acid solutions Inhibition of aluminum corrosion by sulfuric acid solutions

1974-07-03

1976-01-13

Wolk, Morris O.

Metal treatment

Stock

Ferrous

21 25R, 148 627, 156 22, 252146, 252147, 252387, C23F 1104, C23G 104

Patent

active

039321304

ABSTRACT:
Corrosion of aluminum metal by sulfuric acid solution is inhibited by addition of soluble fluoride compounds to the acid solutions. Such corrosion inhibition allows use of aluminum as a construction material in process units, particularly sulfuric acid alkylation units, heretofore constructed of heavier and/or more expensive materials.

REFERENCES:
patent: 3010854 (1961-11-01), Satterfield
patent: 3275562 (1966-09-01), Smith
patent: 3331710 (1967-07-01), Lodeesen et al.
patent: 3779839 (1973-12-01), Kaihu et al.
patent: 3887488 (1975-06-01), Scott et al.

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