Primary gold ore from Bangi, Guizhou, belongs to a clastic-type, finely disseminated, refractory particles.It is difficult to extract gold from the ore by cyanide infusing. 貴州板其原生金礦石屬碎屑岩類微細浸染型難選冶礦石，在氰化浸出之前需進行預處理。
Experiments of roasting the carbonaceous primary gold ore that connot be treated with flotation and the affecting factors of iodide leaching glod are intrduced in this paper. 文章詳細介紹了不適合浮選處理的含碳原生金礦焙燒試驗和碘化浸出時各影響因素試驗。
