Preparation of aluminum compounds from bauxite: Considerations about some aspects involved in a didactic experiment

被引：12

作者：

Constantino, VRL ^{[1
]}

Araki, K ^{[1
]}

de Oliveira, DDSEW ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, BR-05513970 Sao Paulo, Brazil

来源：

QUIMICA NOVA | 2002年 / 25卷 / 03期

关键词：

bauxite; aluminum oxide; potassium alum;

D O I：

10.1590/S0100-40422002000300024

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

PREPARATION OF ALUMINUM COMPOUNDS FROM BAUXITE: CONSIDERATIONS ABOUT SOME ASPECTS INVOLVED IN A DIDACTIC EXPERIMENT. Aluminum metal and aluminum compounds have many applications in several branches of the industry and in our daily lives. The most important raw material for aluminum and its manufactured compounds is bauxite, a rock constituted mainly by aluminum hydroxides minerals. In this work, a didactic experiment aiming the preparation of alumina and potassium alum starting from bauxite is proposed for undergraduate students, Both compounds are of great commercial, scientific and historical interest, The experiment involves applications of important chemical principles such as acid-base and precipitation. Some chemical properties and uses of aluminum compounds are also illustrated.

引用

页码：490 / 498

页数：9

共 30 条

[11] Vibrational spectroscopy and dehydroxylation of aluminum (oxo)hydroxides: Gibbsite [J].

Frost, RL ;

Kloprogge, JT ;

Russell, SC ;

Szetu, JL .

APPLIED SPECTROSCOPY, 1999, 53 (04) :423-434

[12]

Greenwood N. N., 1997, Chemistry of the Elements, V2nd, P216

[13] The surface chemistry of Bayer process solids: a review [J].

Hind, AR ;

Bhargava, SK ;

Grocott, SC .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1999, 146 (1-3) :359-374

[14]

KLEIN C, 1993, MANUAL MINERALOGY, P17

[15]

KUAFFMAN GB, 1990, EDUC CHEM, P36

[16]

LANCASHIRE R, 1982, EDUC CHEM, P74

[17]

LEWIS JI, 1986, EDUC CHEM, P116

[18]

LIVAGTE J, 1995, ENCY INORGANIC CHEM, V7, P3836

[19]

LOWE BM, 1992, ED CHEM JAN, P15

[20]

OXTOBY DW, 1994, CHEM SCI CHANGE, P500

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