Metal ions solubility in plant phosphoric acid: degree of ammonia neutralization and temperature effects

Leong, Y.K. , Sganzerla, M., Berndt, C.C. , and Campbell, G.R. (2008) Metal ions solubility in plant phosphoric acid: degree of ammonia neutralization and temperature effects. Industrial & Engineering Chemistry Research, 47 (5). pp. 1380-1385.

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Abstract

The solubility of Fe(III), Al(III), Mg(II), Ca(II), and S in plant phosphoric acid was determined as a function of mole ratio of ammonia to phosphate (MR) and at temperatures of 25, 60, and 90 °C. For each metal ion, there is a unique MR characterizing the onset of a sharp decline in solubility and another characterizing the transition from sharp decline to a more gradual change. At any given temperature, these characteristic MR values generally increase with the following order: Ca(II) = Mg(II) > Al(III) > Fe(III). The temperature effects on the solubility behavior of these metal ions and S and the most likely cause(s) of such behavior were presented and discussed.

Item ID: 25766
Item Type: Article (Research - C1)
ISSN: 0888-5885
Keywords: neutralisation; metal line; soluable beta amyloid; temperature; engineering; industrial
Date Deposited: 08 Apr 2013 00:07
FoR Codes: 09 ENGINEERING > 0904 Chemical Engineering > 090499 Chemical Engineering not elsewhere classified @ 100%
SEO Codes: 87 CONSTRUCTION > 8703 Construction Materials Performance and Processes > 870302 Metals (e.g. Composites, Coatings, Bonding) @ 100%
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