Preliminary experimental research for silver recovery from radiographic films

International Conference on Applied Sciences 2016

Cânda, L.R.^1 ; Ardelean, E.^1

Politehnica University of Timisoara, Engineering and Management Department, Revolutiei Str., no. 5, Hunedoara

331128, Romania^1

关键词: Experimental research;    Global demand;    High purity;    Laboratory test;    Radiographic films;    Silver recovery;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/163/1/012024/pdf
DOI  :  10.1088/1757-899X/163/1/012024

来源: IOP

【 摘 要 】

Global demand for silver remains steadily to about 1,000 million ounces (28349500 kg), of which around 600 million ounces (17009700 kg) are used in industrial applications. Extraction of silver from the ore is expensive and harmful to the environment and low efficiency. X-ray films represent an important worldwide consumer as research on recovery of silver from exposed radiographic films must be oriented to achieve a maximum recovery and a high purity silver, with methods through the by-products will be less polluting for the environment. The paper presents some laboratory tests referring to the recovery of silver from radiographic films by leaching with sodium hydroxide. Two series of experiments were performed with different amounts of used X-ray film.