A LOW WASTE VOLUME, FIRST CYCLE, 1A PUREX FLOW SHEET

The KPL No. 6, first-cycle Purex lA flow sheet is presented as an examaple of waste volume reduction through optimum solvent-extraction flow sheet design. Calculated on the basis of previous flow sheets, a 54 to 69% reduction of first-cycle waste storage volume is achieved by taming advantage of the extractability and reflux of nitric acid in TBP systems to provide adequate salting while minimizing the amount of acid going to waste. Although this report is concerned only with the first Purex cycle, the calculations are equally valid for the second U cycle, and the principles presented are applicable to similar nitnic acid-salted TBP systems. (auth

A LOW WASTE VOLUME, FIRST CYCLE, 1A PUREX FLOW SHEET

The KPL No. 6, first-cycle Purex lA flow sheet is presented as an examaple of waste volume reduction through optimum solvent-extraction flow sheet design. Calculated on the basis of previous flow sheets, a 54 to 69% reduction of first-cycle waste storage volume is achieved by taming advantage of the extractability and reflux of nitric acid in TBP systems to provide adequate salting while minimizing the amount of acid going to waste. Although this report is concerned only with the first Purex cycle, the calculations are equally valid for the second U cycle, and the principles presented are applicable to similar nitnic acid-salted TBP systems. (auth