Nylon Dissolution in Nitric Acid Solutions.

Kessinger, G. F. ; Clark, J. D.

Technical Information Center Oak Ridge Tennessee

关键词: Nylon;    Nitric acid;    Dissolution;    Scrap;    Processing;   

RP-ID  :  DE2004833860

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

H Area Operations is planning to process Pu-contaminated uranium scrap in support of de-inventory efforts. Nylon bags will be used to hold materials to be dissolved in H-Canyon. Based on this set of twelve nylon dissolutions, it is concluded that (when other variables are held constant): increased acid concentration results in increased dissolution rates; increased acid concentration results in a lower dissolution onset temperature; little, if any, H plus is consumed during the depolymerization process; and 2.0-3.0 M HNO3, with 0.025 M KF and 2 g/L B, is satisfactory for the dissolution of nylon bag materials to be used during H-Canyon processing.