METHOD AND DEVICE FOR PROCESSING ORES CONTAINING PRECIOUS METALS Russian patent published in 2016 - IPC C22B11/00 B03B7/00 C22B3/02 C22B3/04 

FIELD: metallurgy.

SUBSTANCE: invention relates to leaching precious metals from refractory gold-bearing stock. Prior to leaching moistened or dehydrated until pores filling with water ore is subjected to nanosecond electromagnetic pulses with the following parameters: duration - less than 1 nsec, duration of the front - less than 0.1 nsec, repetition frequency - more than 1 kHz and amplitud - more than 15 kV. Method is implemented at a plant including a generator and an electrode system of two electrodes, where the first electrode is made in the form of a conducting conveyor belt, the second electrode is made in the form of a flat copper plate of a square shape located above the first electrode.

EFFECT: higher efficiency of opening a containing mineral matrix containing precious metals owing to creation of channels and microcracks providing access of the leaching solution to particles of the precious metals.

2 cl, 1 dwg, 1 tbl