Process optimization for the recovery of silver from waste X-ray photographic films

被引：0
|
作者：
Erku, Mekurialem Demelash [1 ]
Yimam, Abubeker [1 ]
Jabasingh, Anuradha S. [1 ]
机构：
[1] Addis Ababa Univ, Addis Ababa Inst Technol, Proc Engn Div, Sch Chem & Bio Engn, Addis Ababa, Ethiopia
来源：
INDIAN JOURNAL OF CHEMICAL TECHNOLOGY | 2019年 / 26卷 / 05期
关键词：
Silver recovery; Waste photographic film; Sodium hydroxide; XRF; CELLULASE PRODUCTION; BAGASSE;
D O I：
暂无
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A novel, simple, fast, cheap and pollution free method for utilizing waste X-ray film for silver recovery using sodium hydroxide and sodium sulfide by the stripping and precipitation processes, respectively has been reported. The yield of silver by this process is 1.07% w/w at a stripping temperature of 70.88 degrees C, 10.97 min and NaOH concentration of 1.5M. The composition of recovered silver has been determined by XRF and the results are compared with existing literature for the purity of silver. The study warrants the application of NaOH and Na2S to recover silver from used X-ray photographic film.
引用
收藏
页码：404 / 410
页数：7
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