Method for recovering gold and silver in high-carbon gold concentrates

The invention relates to a method for recovering gold and silver in high-carbon gold concentrates. The method comprises the steps that firstly, the high-carbon gold concentrates are put into a stirring tank for slurrying; after the temperature is increased to a certain temperature, kerosene is added for reducing the activity of carbon; after stirring for a certain time, filtering is conducted, andfilter residues are ground and then added into a cyaniding stirring tank for slurrying again; and caustic soda and sodium cyanide are added, the ph value of slurry and the concentration of the sodiumcyanide are strictly controlled, and gold and silver in the gold concentrates are leached and recovered. The method for recovering gold and silver in the high-carbon gold concentrates is simple in process and low in cost. 本发明涉及种回收高碳金精矿中金银的方法，先将高碳金精矿投入搅拌槽中制浆，升至定温度后，加入煤油以降低碳的活性，搅拌定时间后过滤，将过滤渣经磨矿后加入氰化搅拌槽中再次制浆，加入火碱与氰化钠并严格控制矿浆的ph值与氰化钠浓度，对金精矿中的金银进行浸出并回收。本发明工艺简单，成本低。