Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1990-04-12
1993-03-30
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204 96, 204 98, 204 97, 204151, 204116, 204118, 204121, B01D 6100
Patent
active
051980851
ABSTRACT:
An alkali hydroxide solution of a metal hydroxide or metallic oxide acidic is separated into a solid metal hydroxide or metallic oxide acidic and a solution of alkali hydroxide by feeding the alkali solution to an electrolyte comprising a soluble anion of an acid and controlling the pH of the electrolyte to insolubilize a metal hydroxide or metallic oxide acidic by electrotransporting alkali cations from the electrolyte through a cation permeable membrane into a catholyte and converting the alkali cations to a solution of alkali hydroxide. Sodium hydroxide etchants of aluminum containing sodium aluminate are continuously converted to aluminum hydroxide and a solution of sodium hydroxide.
REFERENCES:
patent: 1572115 (1926-02-01), Greenawalt
patent: 2723229 (1955-11-01), Bodamer
patent: 3477928 (1969-11-01), Coltrinari
patent: 4107007 (1978-08-01), Gaumann et al.
patent: 4111772 (1978-09-01), Horn
patent: 4488950 (1984-12-01), Pooley et al.
patent: 4519881 (1985-05-01), Chang
patent: 4636288 (1987-01-01), Vaughan
patent: 4891067 (1990-01-01), Rappas et al.
Niebling John
Phasge Arun S,.
LandOfFree
Restoration of alkali hydroxide etchants of aluminum does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Restoration of alkali hydroxide etchants of aluminum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Restoration of alkali hydroxide etchants of aluminum will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1278813