Method and apparatus for determining acid concentration

Details Method and apparatus for determining acid concentration Method and apparatus for determining acid concentration

1990-09-14

1992-12-29

Harvey, Jack B.

Electricity: measuring and testing

Electrolyte properties

Using a conductivity determining device

324438, 324441, 134 10, G01N 2702

Patent

active

051755025

ABSTRACT:
Acid concentrations are determined by the method and apparatus, particularly HCl acid for picking ferrous material. Specific gravity measurements are made on acid samples, diluted acid samples and water. Conductivity measurements are conducted on the diluted acid samples. The water dilution minimizes the influence of the metal salt in the sample to improve the conductivity measurements. The system calculates the acid concentration by a series of approximations using the conductivity data and the acid concentration - conductivity relationships to provide an accurate acid concentration which is easily automated by computer.

REFERENCES:
patent: 3062223 (1962-11-01), Malin et al.
patent: 3074277 (1963-01-01), Hill
patent: 3262051 (1966-07-01), Payne, Jr.
patent: 3427198 (1969-02-01), Hill
patent: 3433670 (1969-03-01), Hill
patent: 3669623 (1972-06-01), Allison et al.
patent: 4233106 (1980-11-01), Goffredo

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