从废定影液中回收银及提银后废定影液再生的研究  

ON THE RECOVERY OF SILVER FROM ABANDONED FIXER AND THE REGENERATION OF LEFT FIXER

作　　者：谷名学[1] 

机构地区：[1]西南师范大学化学系

出　　处：《西南师范大学学报（自然科学版）》1990年第2期274-276,共3页Journal of Southwest China Normal University(Natural Science Edition)

摘　　要：采用Na_2S沉淀法,通过控制溶液pH值确定Na_2S的适宜用量,从而从废定影溶液中定量回收银及再生定影液,方法简便,无需特殊设备,银的回收率高,再生定影液的定影效果好,适合各使用定影液的单位使用.This article deals with quantitative recovery of silver from abandoned fixer by a pricipitation of suitable quantity of added sodium sulfide that depends on the solution pH and deals with the regeneration of fixer. The technique uses simple equipment, recovers high quantity of silver. And the regenerated fixer possesses good fixation efficiency, suitable for corresponding units.

关 键 词：定影液 再生 银 回收 

分 类 号：TQ577.42[化学工程—精细化工]