Patent ID: 6225129
Filing Date: 2001-05-01
Classification: C25B,G01N,Y10T

Abstract:
A method of generating a base comprising the steps of:(a) providing a cation source in a cation source reservoir,(b) flowing an aqueous liquid stream through a first base generation chamber separated from said cation source reservoir by a first barrier substantially preventing liquid flow while providing a cation transport bridge,(c) applying an electric potential between an anode in electrical communication with said cation source reservoir and a cathode in electrical communication with said first base generation chamber to electrolytically generate hydroxide ions in said first base generation chamber and to cause cations in said cation source reservoir to migrate toward said first barrier and to be transported across said first barrier toward said cathode to combine with said transported cations to form cation hydroxide, said first base generation chamber being pressurized and the pressure maintained in said first base generation chamber being at least about 2 times any pressure maintained in said cation source reservoir, and(d) removing the cation hydroxide in an aqueous liquid stream as an effluent from said first base generation chamber.