Process for the electrochemical decomposition of powders and...

Electrolysis: processes – compositions used therein – and methods – Electrolytic material treatment – Removing metal

Reexamination Certificate

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C205S508000, C205S704000, C205S564000, C205S572000, C204S278500

Reexamination Certificate

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07144493

ABSTRACT:
Process for the electrochemical decomposition of precursors in powder form by introducing a powder batch between two electrodes of an electrolysis cell, electrodes being designed to be liquid-permeable, and the electrolyte flowing through the powder batch perpendicularly to the electrode surfaces, and electrolysis cell suitable therefor, which is essentially characterized in that at least one electrode has a structure which consists of a supporting pierced plate (5), an electrode plate (3) provided with perforations, and a filter cloth (4) arranged between the supporting pierced plate (5) and the electrode plate (3), and in that the cathode (6) is shielded from the cell by means of a liquid-permeable separator (7).

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patent: 4597842 (1986-07-01), Evans
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patent: 2650474 (1978-05-01), None
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patent: 2039710 (1991-07-01), None
Kenworthy, V.A. et al., “Experimental Extraction of Strategic Components from S-816 Alloy Scrap Metal.” Report of Investigations 5786. United States Department of the Interior. 1976.
Vadasdi, K., “Effluent-Free Manufacture of Ammonium Paratungstate (APT) by Recycling Byproducts.” Int. J. of Refractory Metals & Hard Materials 13 (1995) 45-49.
Venkatachalam, S., “Electrochemical Dissolution of Nickel from a Superalloy Scrap by Alternating Current.” J. Electrochem. Soc. India, 127-131.

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