Determination of uranyl nitrate and nitric acid based on in-line density and conductivity measurements

✍ Scribed by H.H.Ph. Moeken; J.F.P. Marchand; R. de Vries

• Publisher: Elsevier Science
• Year: 1971
• Tongue: English
• Weight: 266 KB
• Volume: 57
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/s0003-2670(01)80154-9

✦ Synopsis

Determination of uranyl nitrate and nitric acid based on in-line density and conductivity measurements

Continuous mcasurcment of the uranium content of process vessels containing uranyl nitrate-nitric acid solutions is an csscntial part of an automatized uranium control system. Another problem is the control of extraction processes involving these solutions which rcquirc that their acidity is always known. These problems may be solved by in-line measurement of Icvcl, density and conductivity and subsequent conversion of the three electrical signals to volume, uranium-and acid-concentration values by digital computer processing.

This communication describes experimentally derived equations relating density and conductivity to the two concentrations in the range 200-400 g U 1-l and 0.5-1.5 N acid. The work is an extension of previous publications on density and conductivity mcasuremcnts of acid-actinide mixtures' -3.