Process for monitoring the electrolyte circulation in an electro

Details Process for monitoring the electrolyte circulation in an electro Process for monitoring the electrolyte circulation in an electro

1998-01-22

1999-09-14

Bell, Bruce F.

Electrolysis: processes, compositions used therein, and methods

Electrolytic synthesis

Involving measuring, analyzing, or testing during synthesis

205335, 205349, 205771, C25B 1502

Patent

active

059518421

ABSTRACT:
A process for monitoring the electrolyte circulation in an electrolysis cell, in which an electrolyte flow generated by a circulation pump is generated between the electrodes of the electrolysis cell and the electrolysis is performed by a constant electrolysis current or electrode potential. The process includes the steps of setting at least three different electrolysis states in the cell by a switching on and off of the circulation pump and the electrolysis current or the voltage at predetermined times; performing multiple measurements of at least one electrolysis parameter in a predetermined period of time and forming a mean value of the measured electrolyte parameter for each of the three electrolysis states; forming of a first gradient ST1 from the mean values of the electrolysis parameters of the first and second electrolysis states and forming a second gradient ST2 from the mean values of the electrolysis parameters of the second and third electrolysis states; and comparing the gradient ST1 with the absolute value of the gradient ST2, where a greatly reduced electrolyte circulation applies with ST1<.vertline.ST2.vertline., which is indicated as an error signal by a visual or acoustic signal element.

REFERENCES:
patent: 4675085 (1987-06-01), Vasquez
patent: 5254226 (1993-10-01), Williams et al.
patent: 5282934 (1994-02-01), Cox
patent: 5435894 (1995-07-01), Hayakawa et al.
patent: 5480769 (1996-01-01), Ueffinger et al.
patent: 5614067 (1997-03-01), Okazaki
patent: 5783060 (1998-07-01), LaRiviere et al.

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