Prototech Company

Robert W Lindstrom

Robert J Allen

Walter Juda

Amiran Bar-Ilan

An improved electrocatalytic gas diffusion electrode comprising an open pore carbon cloth carrying on one side a first uniform mixture of noble-metal-catalyzed carbon and a hydrophobic binder adhered within the cloth pores and to the yarns of the cloth to a depth less than the thickness of the cloth, and a second uniform mixture of non-catalytic carbon and a hydrophobic binder adhered to the remaining open pore portion on the other side of said cloth; and method of preparation.

Electrocatalytic gas diffusion electrode employing thin carbon cloth

This disclosure is concerned with a novel multiple quartz fiber or similar yarn braided, supportable cylindrical sleeve carrying catalytic coatings for effective flameless catalytic combustion of an air-gas mixture axially fed to the cylinder.

Self-supporting catalytic sleeve formed of interwoven loosely packed

This disclosure relates primarily to the recovery of hydrogen-reduced metals from aqueous solutions of salts thereof, such as, for example, copper from copper sulphate solution, by hydrogen reduction at a catalytic barrier made pervious to the solution, in an apparatus provided with means to supply hydrogen along a face of said barrier at which the aqueous solution is applied to effect deposition thereupon and flowing the solution transversely through the barrier to continue deposition upon the other face of the barrier.

Method of recovering hydrogen-reduced metals, ions and the like at

This disclosure concerns primarily the recovery of hydrogen-reduced metals from aqueous solutions of salts thereof, by hydrogen reduction at a porous hydrophobic catalytic barrier, at ordinary temperatures, in an apparatus provided with means to supply hydrogen to one face and aqueous solution to the other face of said barrier.

Process for the recovery of hydrogen-reduced metals, ions and the like

This disclosure is concerned with thin gas diffusion electrodes comprising an open pore carbon cloth substrate provided with a uniform mixture of catalytic carbon particles and preferably Teflon particles adhered within the cloth poes and to the yarns of the cloth; processes for making and using the same; and assemblies comprising said electrodes and closely spaced preferably noble metal current collecting contacts for use in electrochemical cells operating at high current densities.

Thin carbon-cloth-based electrocatalytic gas diffusion electrodes, and

This disclosure is concerned with improved thin gas diffusion electrodes comprising open pore carbon cloth substrates provided with a uniform mixture of catalytic carbon particles and preferably Teflon particles adhered within the cloth pores and to the yarns of the cloth, formed into an electrode assembly with a plurality of closely spaced preferably noble metal current collecting contacts throughout the area of the cloth and connected to external terminals for use in electrochemical cells, including metal-air batteries and zinc electro-winning cells and the like, operating at high current densities.

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Reading, MA, United States of America

Robert W Lindstrom