Nylon Dissolution in Nitric Acid Solutions

KESSINGER, GLENF.

Savannah River Site (S.C.)

关键词: Nylon Depolymerization;    Scrap;    Processing;    Dissolution;    Nitric Acid;   

DOI  :  10.2172/833860
RP-ID  :  WSRC-TR-2004-00329
RP-ID  :  AC09-96SR18500
RP-ID  :  833860

美国|英语

来源: UNT Digital 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.