Chemistry: electrical and wave energy – Apparatus – Coating – forming or etching by sputtering
Patent
1986-04-08
1988-06-21
Niebling, John F.
Chemistry: electrical and wave energy
Apparatus
Coating, forming or etching by sputtering
2041824, B01D 1300
Patent
active
047523735
ABSTRACT:
A mechanical structure for a three-compartment electrodialytic cell unit utilizing spaced anion perm-selective membranes is characterized by the ease of assembly and disassembly of the parts thereof and adaptation for use as a standard structural component for repeated use in the construction of multiple cell electrodialysis apparatus, with the internal flow of the catholyte and anolyte and an electroless copper solution to be chemically treated being controlled and organized by a plurality of ports in the assembled parts, and with electrical energization of the individual cell units in a multi-cell structure in series, in parallel or series-parallel. The mechanical structure features the elimination of a need to replace the catholyte (NaOH) since each of the cell units generates its own catholyte during the operation thereof, higher electrical current densities than possible with the prior art structures, and hence, greater regenerating capacity for a given cell unit, and control of the fluid pressures on the opposite sides of the membranes and physical protective support for the membranes, also, so that there are no differential pressures or factors tending to adversely affect and damage the membranes.
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Morton Thiokol Inc.
Niebling John F.
Starsiak Jr. John S.
White Gerald K.
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