WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

C25C　PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR

C25C 1/00 Electrolytic production, recovery or refining of metals by electrolysis of solutions (C25C 5/00 takes precedence)

C25C 1/02 ・of light metals

C25C 1/04 ・・in mercury cathode cells

C25C 1/06 ・or iron group metals, refractory metals or manganese

C25C 1/08 ・・of nickel or cobalt

C25C 1/10 ・・of chromium or manganese

C25C 1/12 ・of copper

C25C 1/14 ・of tin

C25C 1/16 ・of zinc, cadmium or mercury

C25C 1/18 ・of lead

C25C 1/20 ・of noble metals

C25C 1/22 ・of metals not provided for in groups C25C 1/02 to C25C 1/20

C25C 1/24 ・Alloys obtained by cathodic reduction of all their ions

C25C 3/00 Electrolytic production, recovery or refining of metals by electrolysis of melts (C25C 5/00 takes precedence)

C25C 3/02 ・of alkali or alkaline earth metals

C25C 3/04 ・of magnesium

C25C 3/06 ・of aluminium

C25C 3/08 ・・Cell construction, e.g. bottoms, walls, cathodes

C25C 3/085 ・・・{characterised by its non electrically conducting heat insulating parts}

C25C 3/10 ・・・External supporting frames or structures

C25C 3/12 ・・・Anodes

C25C 3/125 ・・・・{based on carbon}

C25C 3/14 ・・Devices for feeding or crust breaking

C25C 3/16 ・・Electric current supply devices, e.g. bus bars

C25C 3/18 ・・Electrolytes

C25C 3/20 ・・Automatic control or regulation of cells (controlling or regulating in general G05)

C25C 3/22 ・・Collecting emitted gases

C25C 3/24 ・・Refining

C25C 3/26 ・of titanium, zirconium, hafnium, tantalum or vanadium

C25C 3/28 ・・of titanium

C25C 3/30 ・of manganese

C25C 3/32 ・of chromium

C25C 3/34 ・of metals not provided for in groups C25C 3/02 to C25C 3/32

C25C 3/36 ・Alloys obtained by cathodic reduction of all their ions

C25C 5/00 Electrolytic production, recovery or refining of metal powders or porous metal masses

C25C 5/02 ・from solutions

C25C 5/04 ・from melts

C25C 7/00 Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells (for the production of aluminium C25C 3/06 to C25C 3/22)

C25C 7/002 ・{of cells comprising at least an electrode made of particles (C25C 7/005, C25C 7/02 to C25C 7/06 take precedence)}

C25C 7/005 ・{of cells for the electrolysis of melts (C25C 7/02 to C25C 7/06 take precedence)}

C25C 7/007 ・{of cells comprising at least a movable electrode (C25C 7/002, C25C 7/02 to C25C 7/06 take precedence)}

C25C 7/02 ・Electrodes (consumable anodes for the refining the metals C25C 1/00 to C25C 5/00); Connections thereof

C25C 7/025 ・・{used in cells for the electrolysis of melts}

C25C 7/04 ・Diaphragms; Spacing elements

C25C 7/06 ・Operating or servicing

C25C 7/08 ・・Separating of deposited metals from the cathode