The Dow Chemical Company

Carlos M Moreno

Robert D Bridges

Andre J Uzee

The method of the present invention produces a porous, electrolyte permeable polytetrafluoroethylene diaphragm with a thickness of about 5 to about 100 mils and an average pore size of about 0.1 to about 100 microns. This diaphragm is suitable for use in an electrolytic diaphragm cell adapted to electrolytically form chlorine and an alkali metal hydroxide from an aqueous alkali chloride solution.

Method to produce a polytetra-fluoroethylene diaphragm

An electrolytic diaphragm cell to produce chlorine and an alkali metal hydroxide from an aqueous alkali metal chloride solution is disclosed. The cell has anode and cathodes spaced apart by a porous, electrolyte permeable polytetrafluoroethylene diaphragm with a thickness of about 5 to about 100 mils and an average pore size of about 0.1 to about 100 microns.

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Baton Rouge, LA, United States of America

Carlos M Moreno