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Synthesis of Hydrated Aluminum Sulfate from Kaolin by Microwave Extraction
Author(s) -
Park Seong Soo,
Hwang Eun Hee,
Kim Byoung Chan,
Park Hee Chan
Publication year - 2000
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2000.tb01390.x
Subject(s) - microwave , extraction (chemistry) , aluminium , materials science , sulfate , mineralogy , analytical chemistry (journal) , nuclear chemistry , metallurgy , chemistry , chromatography , physics , quantum mechanics
The feasibility of extracting alumina from kaolin via a microwave extraction process was investigated by comparing reaction times, reaction temperatures, and acid concentrations under microwave treatment with the same factors under conventional thermal extraction. The maximum amount of alumina extracted from kaolin under conventional processing at 90°C for 240 min with 1 M H 2 SO 4 was 99.9%; the same amount of alumina was extracted under microwave processing at 90°C for 120 min with 1 M H 2 SO 4 .