Abstract
Aluminum extraction from two aluminum-rich fly-ashes by commercial and microbiologically-produced citric acids was tested. Up to 12% Al2O3 of the total was extracted by a 21 hrs1 shaking treatment at 60° C. Extraction efficiency is considerably affected by extracting acid concentration and extraction temperature. The extraction efficiency of microbiologically-produced citric acids was only slightly lower than that of commercial citric acid of equal molarity.
Original language | English |
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Pages (from-to) | 228-230 |
Number of pages | 3 |
Journal | European Journal of Applied Microbiology and Biotechnology |
Volume | 16 |
Issue number | 4 |
DOIs | |
State | Published - Dec 1982 |