从碱性腐蚀液中回收锗的实验探究

Experimental Research of Recovery Germanium from the Germanium-Bearing Corrosive liquid

用沉淀法将碱性腐蚀液中的锗进行沉淀富集回收,对锗回收的适宜的实验条件进行实验探究。讨论了沉淀剂种类及用量,实验温度,碱性腐蚀液的pH值,沉淀时间等因素对锗的回收率的影响。结果表明:在常温下,以FeCl3为沉淀剂,碱性腐蚀液的起始pH值为6.5,沉淀时间为90 min时,锗的回收率达到了80%以上。

Germanium in corrosive liquid is recovered by the sedimentary method, the suitable condition of recovery germanium are chose. The effects of the type of the sedimentary agent, the amount of the sedimentary agent, temperature, pH value, the sedimentary time on the Ge recovery has been invested as well. The results showed that the Ge recovery are more than 80% when the temperature is normal temperature ,the type of the sedimentary is FeC13, pH value is 6.5, the sedimentary time is 90 minutes