Sodium hydrosulfite electrolytic cell process control system

Details Sodium hydrosulfite electrolytic cell process control system Sodium hydrosulfite electrolytic cell process control system

1989-01-26

1989-08-15

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

204406, 204408, 204433, 204228, 204263, C25B 100, C25B 1502, C25B 1508

Patent

active

048571580

ABSTRACT:
A process control system for a filter press membrane electrochemical cell is provided that utilizes a microcomputer for multi-tasking functions to concurrently execute four programs to control the cell operation and self-correct out-of-tolerance conditions or shut cell operation down if not corrected within the allotted time period. A core process control program intercommunicates with a timer program, an alarm monitoring program and at least one sequence program in the process control system.

REFERENCES:
patent: 3680070 (1972-07-01), Nystuen
patent: 4087700 (1978-05-01), Curiger et al.
patent: 4212721 (1980-07-01), Bergner et al.
patent: 4387422 (1983-06-01), Steutermann
patent: 4434033 (1984-02-01), Kaczur et al.
patent: 4435291 (1984-03-01), Matsko
patent: 4508602 (1985-04-01), Kaczur et al.
patent: 4509618 (1985-04-01), Kuhn
patent: 4631530 (1986-12-01), Gasper
patent: 4767511 (1988-08-01), Aragon

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