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1. (WO1979000258) THE PRODUCTION OF ELECTROLYTIC MANGANESE DIOXIDE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/000258 International Application No.: PCT/EP1978/000021
Publication Date: 17.05.1979 International Filing Date: 20.10.1978
IPC:
C08L 69/00 (2006.01) ,C25B 1/21 (2006.01) ,C25B 15/00 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
69
Compositions of polycarbonates; Compositions of derivatives of polycarbonates
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
B
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
1
Electrolytic production of inorganic compounds or non-metals
21
of manganese oxides
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
B
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
15
Operating or servicing of cells
Applicants:
Inventors:
Priority Data:
45607/7702.11.1977GB
Title (EN) THE PRODUCTION OF ELECTROLYTIC MANGANESE DIOXIDE
(FR) PRODUCTION DE BIOXYDE DE MANGANESE ELECTROLYTIQUE
Abstract:
(EN) In the production of electrolytic manganese dioxide, the anodically deposted product is removed by cathodically polarizing the electrode, possibly assisted by impact or vibration. Typically, the current is reversed periodically when the deposit is about 100-1500 (Alpha) thick, shortly after current reversal the product peels off as flake-like particles which can easily be ground to form a battery de-polarizer. An apparatus for carrying out the removal of the desired product comprises an electrolytic cell (1) including a plurality of electrodes (4) (5) and means (10) (11) for reversing the polarity of the electrodes at selected times.
(FR) Dans la production de bioxyde de manganese electrolytique, le produit depose sur l"anode est enleve par polarisation cathodique de l"electrode, et aussi par impact ou vibration de cette derniere. D"une maniere caracteristique, le courant est inverse periodiquement lorsque l"epaisseur du depot est de 100 a 1500 (Alpha) environ, et peu apres l"inversion du courant le produit s"ecaille sous forme de paillettes qui peuvent etre facilement reduites en poudre pour donner un depolarisant de batterie. Un appareil pour effectuer l"enlevement du produit desire comprend un element electrolytique (1) avec une pluralite d"electrodes (4) (5) ainsi que des moyens (10) (11) pour inverser la polarite des electrodes a des temps determines.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
JPS54500024