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.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
1990年第2期274-276,共3页
Journal of Southwest China Normal University(Natural Science Edition)
关键词
定影液
再生
银
回收
abandoned fixer
silver
regeneration
added composition
