C - Chemistry – Metallurgy – 25 – C
Patent
C - Chemistry, Metallurgy
25
C
204/43.45, 204/1
C25C 7/02 (2006.01) C25C 5/02 (2006.01) C25C 7/00 (2006.01)
Patent
CA 1070639
ABSTRACT OF THE DISCLOSURE: A process and apparatus for electrolytically precipi- tating a pulverulent metal from a compound of the metal in an ionized solution. According to the invention, the ionized solu- tion is established in an electrolytic cell using as a cathode for the cell a bed of powder of the metal, the grain size of the powder being substantially that of the particles which are to pre- cipitate out of the ionized solution; an electrical current is passed through the cathode and an anode immersed in the solution while the bed lies quiescent thereby to cause particles of the metal to precipitate electrolytically and to collect onto the bed of powder; the bed is intermittently agitated to suspend it in the solution, and a portion only of the suspended particles is intermittently withdrawn from the cell, the remainder of the particles then settling to the bottom of the cell to constitute again the cathode. The apparatus of the invention includes a non-conodible anode above the cathode in a cylindrical cell; the cathode is a bed of powder of the metal to be deposited. Further provided are a plurality of injectors disposed around the pe- riphery of the cell and means for withdrawing solution and sus- pended metal from the center of the cell. The invention enables one to prepare metal, directly, in uniform, fine, powdery form which is easily recoverable.
224577
Dekeister Roger
Lemaire Gilbert
Marzys Daniel
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