DISSOLUTION KINETICS OF PHOSPHATE ORE IN ACIDIC SOLUTIONS

DISSOLUTION KINETICS OF PHOSPHATE ORE IN ACIDIC SOLUTIONS

1 INTRODUCTIONIn the wet processes of industrial phosphoric acid production,sedimentary or francolitephosphate ore dissolves in mineral acid.If the acid is sulphuric acid,which is a classic wetprocess,the crystallization of calcium sulphate occurs.The rate of crystallization is normallyconsidered qu...

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Veröffentlicht in:中国化学工程学报：英文版 1994 (2), p.13-22
1. Verfasser: 马三剑 E.T.M.J.Martynowicz G.J.Witkamp G.M.vanRosmalen
Format: Artikel
Sprache:eng
Schlagworte:
calcium
concentration
core
diffusion
dissolution
hydrogen
ions
kinetics
mechanically
ore
phosphate
shrinking
stripping
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Zusammenfassung:1 INTRODUCTIONIn the wet processes of industrial phosphoric acid production,sedimentary or francolitephosphate ore dissolves in mineral acid.If the acid is sulphuric acid,which is a classic wetprocess,the crystallization of calcium sulphate occurs.The rate of crystallization is normallyconsidered quite slower than that of dissolution.So only few publications have devoted
ISSN:1004-9541
2210-321X