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J. Dixon, S. Weed, R. Dinauer (1990)
Minerals in soil environments
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Ulmann's encyclopedia of industrial chemistry : Volume B 4 principles of chemical reaction engineering and plant designChemical Engineering and Processing, 33
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JOURNAL OF MATERIALS SCIENCE LETTERS 19, 2000, 1525 – 1527 H. SOUZA SANTOS, P. K. KIYOHARA Electron Microscopy Laboratory, Physics Institute, University of Sao ˜ Paulo, Sao ˜ Paulo, Brazil E-mail: helenas@fge.if.usp.br P. SOUZA SANTOS Department of Chemical Engineering, Polytechnical School, University of Sao ˜ Paulo, Sao ˜ Paulo, Brazil The aluminum trihydroxide gibbsite is the most tried in order to obtain the reaction of the aluminum important alumina chemical as precursor in advanced with water. These conditions were found, but surpris- ceramics, catalyst and adsorbent and aluminum indus- ingly no bayerite is formed, as it could be expected tries. Gibbsite crystallizes in the monoclinic system, by similarity with amalgamated aluminum; different but often as microscopic tabular crystals with pseu- hydroxides and their mixtures could be prepared ac- dohexagonal outlines [1, 2]. The aluminum hydroxide cording to the temperature of reaction. In the narrow which crystallizes in water without any dissolved chem- temperature range of 50 to 60 C, pure microcrystals of C C ical compound is bayerite; adding Na or K , gibbsite gibbsite could be prepared. Compared with pure alu- is formed [3]. Wefers [4] reviewed the processes for minum turnings, sheets, foils and other powders, the
Journal of Materials Science Letters – Springer Journals
Published: Oct 6, 2004
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