Slag form control treatment method for gold concentrates wrapped by pyrites

The invention discloses a slag form control treatment method for gold concentrates wrapped by pyrites. The method comprises the following steps that (1) the gold concentrates wrapped by the pyrites are prepared into acidized ore pulp; (2) after CuSO4 is added to the acidized ore pulp, the acidized ore pulp and the CuSO4 are subjected to hot-pressing pre-oxidation to obtain oxidized ore pulp; (3) the oxidized ore pulp is subjected to thickening washing to obtain underflow oxidizing slag and overflow acid liquor; (4) the underflow oxidizing slag is subjected to alkali quantity adjustment and cyaniding; (5) the overflow acid liquor is subjected to iron precipitation through a goethite process, and part of sulfate radicals are removed; (6) a material obtained in the step (5) is subjected to thickening to obtain underflow and overflow liquid; (7) the overflow liquid is returned to the step (1) to participate in acidizing treatment; (8) seed crystals in part of the underflow obtained in the step (6) are returned to