用制粒的铝粉回收硫脲含金液中的金

硫脲含金液逆流通过双级，装有制粒铝粉的柱子中，还原后的海绵金用含有过氧化氢的酸性硫脲溶解，然后以钢网作阳极，钢棉作阴极，在电压３Ｖ，电流１Ａ，室温下，电解１ｈ，可回收９５％以上的金。

Recovery of gold from gold containing thiourea liquor by using granulated aluminite powder

The gold containing thiourea liquor was sent counter current wise through double steps of column loaded with granulated aluminite powder.The reduced sponge gold was dissolved by acidic thiourea containing hydrogen peroxide.Then taking steel mesh as anode while steel wool as cathode,under the conditions of 3V,1A and room temperature,more than 95% gold were recovered through electrolysis for l hour.