Process considerations additional product concentration facilities in 202-S

摘要

This memorandum discusses investigations concerning the coupling step required to adapt a Redox IIBP to a 234-5 feed which have indicated that a single peroxide strike from a solution 50--60 g./1. in product and about 2 M in nitric acid is adequate. Additional work is planned to demonstrate both peroxide and Pu(IV) oxalate strikes under these conditions. The present Redox PR cage product contains 10 g./1. in product and over 500 g./1. in nitric acid, and probably requires tow peroxide strikes; in addition, the operating capacity of the PR cage may be inadequate to process the throughputs desired in the Redox plant. A two stage continuous concentration process for Redox IIBP is jointly suggested by Design and Development and Chemical Development personnel, and is described in this document. This process is believed to be simple and easily operable. Acid is removed from the product solution adequately for the single peroxide strike coupling procedure. Batch size appears to be easily controllable.