RECOVERING METHOD OF GOLD CONCENTRATE

PROBLEM TO BE SOLVED: To provide a method for separating and concentrating a high-quality concentrate capable of being directly refined from an ore by specific gravity separation which is a safe physical separation method of a low cost.SOLUTION: A table specific gravity separation apparatus is equipped with a rocking table which has a board where two or more riffles are provided, a partition plate which separates and discharges ore particles dispersed by the rocking table to different tanks, a camera which is provided above the board of the rocking table, an image analyzer which carries out binary processing of an image photographed by the camera and a driving apparatus which moves an arrangement position of the partition plate according to binary processing data obtained by the image analyzer. This table specific gravity separation apparatus is used and the ore particles supplied on the board are picked up by the camera, obtained image is subjected to binary processing and the driving apparatus moves the arrangement position of the partition plate according to the obtained binary processing data to separate and recover the concentrate and a tail ore in different tanks.