Apparatus to control reverse current flow in membrane electrolyt

Details Apparatus to control reverse current flow in membrane electrolyt Apparatus to control reverse current flow in membrane electrolyt

1990-06-15

1992-05-12

Niebling, John

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204263, 261122, C25B 900

Patent

active

051124645

ABSTRACT:
Methods are disclosed to control reverse current flow in stacks of membrane electrolytic cells during off-line periods. One method includes the introduction of a stripping gas flow to the anolyte solution of the cells during an interruption of normal positive current flow. In another embodiment, reverse current flow is controlled by introducing at least one soluble reducing agent to the anolyte solution during an interruption of normal positive current flow. Also disclosed is a porous sparging apparatus useful in introducing a stripping gas flow to a stack of membrane electrolytic cells.

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