Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1989-08-14
1991-09-17
Niebling, John F.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
2041826, 204131, 204301, B01D 1302
Patent
active
050492500
ABSTRACT:
The present invention is directed to a process for the separation of an aqueous solution of at least one amphoteric compound from an aqueous feed comprising the amphoteric compound including amino acids, and at least one salt. The process is conducted in an apparatus comprising at least one cell. The cell comprises at least one bipolar membrane each of which comprises a cation layer and an anion layer. Cells useful in the process of the present invention include arrangements with the bipolar membrane in combination with at least one cation membrane and/or at least one anion membrane.
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BV (Amsterdam) NL KN MANI et al. "Aquatech Membrane Technology for Recovery of acid/base Values from Salt Streams" pp. 149-166.
Allied-Signal Inc.
Michaelsen Karen A.
Niebling John F.
Phasge Arun S,.
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