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ES63685A1917-01-041917-01-04Procedimiento para extraer el zinc y otros metales volátiles de sus minerales, mediante el aparato que se describe.
ExpiredES63685A1
(es)
Un procedimiento perfeccionado para el tratamiento de las soluciones obtenidas de piritas, cenizas de pirita y sus análogas, para recuperar de ellas los compuestos de zinc y demás metales que contienen.