Effects of organic and aqueous phase composition on uranium extracion from phosphoric acid with octylphenyl acid phosphate

Autor:	Charles F. Baes, Wesley D. Arnold, Donna R. McKamey
Rok vydání:	1982
Předmět:	Chemistry Magnesium Inorganic chemistry Extraction (chemistry) General Engineering Aqueous two-phase system chemistry.chemical_element General Medicine Phosphate Hydrolysis chemistry.chemical_compound Hydrofluoric acid Sulfate Phosphoric acid Nuclear chemistry
Zdroj:	Industrial & Engineering Chemistry Process Design and Development. 21:301-308
ISSN:	1541-5716 0196-4305
DOI:	10.1021/i200017a015
Popis:	Octylphenyl acid phosphate (OPAP) is a commercially available mixture of monooctylphenyl phosphoric acid (MOPPA) and dioctylphenyl phosphoric acid (DOPPA) that is used to extract U/sup IV/ from wet-process phosphoric acid. The uranium extraction coefficient and the organic phase iron loading were not affected by changes in the organic phase composition due to hydrolysis of the extractant or by different MOPPA/DOPPA ratios in two OPAP batches. The effect of aqueous phase composition was studied in a factorial design test and also by varying the concentrations of the components individually over a range typical of their concentrations in wet-process phosphoric acid. Uranium extraction was decreased by increasing the concentrations of total phosphate, ferric iron, hydrofluoric acid, or total sulfate, and increased by increasing the concentrations of aluminum, magnesium, or silicon. 6 refs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::570eba52c7fcbd3ec485e5f5606ac7f0 https://doi.org/10.1021/i200017a015 Zobrazit plný text záznamu