Process for the recycling of waste batteries and waste printed circuit boards in molten salts or molten metals

A system of recycling of waste composite feed material, the system comprising:

• a separation/pyrolysis chamber (8) for containing a separation/pyrolysis liquid (7) during operation, the separation/pyrolysis chamber having:
• a top (44), a bottom (45) opposed the top, a first side wall (46) and a second side wall (47) opposed the first side wall, the first and second side wall each extending between the top and the bottom,
• the first side wall having an upper part (46a) adjacent the top and a lower part (46b) adjacent the bottom, and
• the second side wall having an upper part (47a) adjacent the top and a lower part (47b) adjacent the bottom;
• a charging vessel (1, 30) equipped with means for charging the feed material from the charging vessel into the separation/pyrolysis chamber;
• the charging vessel being in communication with the separation/pyrolysis chamber at a charging end (48) of the separation/pyrolysis chamber, the charging end being located at the top (44) adjacent the upper part of the first side wall or at the upper part of the first side wall (46a) adjacent the top;
• a heater (11) for heating and maintaining the separation/pyrolysis liquid in a liquid state at a temperature at which the feed material undergoes pyrolysis to form pyrolysis vapours, top dross, and bottom dross;
• the bottom (45) of the separation/pyrolysis chamber being sloped downward relative to said first side wall (46) and the top (44) and sloping away from the charging end of the separation/pyrolysis chamber, thereby defining a low area (D) of the bottom of the separation/pyrolysis chamber at which bottom dross collects;
• a vapour removal line (23) in fluidic communication with the separation/pyrolysis chamber via the top for removing pyrolysis vapours from the separation/pyrolysis chamber;
• a top dross removal device (32) being in communication with the separation/pyrolysis chamber for removing said top dross from the surface of said separation/pyrolysis liquid;
• and
• a solids removal device (16, 17) extending into the low area of the separation/pyrolysis chamber for removing said bottom dross from the separation/pyrolysis chamber.