The extraction of alumina from kaolin

Joint Authors

al-Shammari, Ala Hasan Ali
Ayyub, Ihab F.
al-Tai, Muhammad H.

Source

Engineering and Technology Journal

Issue

Vol. 37, Issue 4A (30 Apr. 2019), pp.133-139, 7 p.

Publisher

University of Technology

Publication Date

2019-04-30

Country of Publication

Iraq

No. of Pages

7

Main Subjects

Road Engineering

Abstract EN

Alumina has wide industrial and technological applications that can be extracted from different locations, different methods and materials.

Kaolin from Iraq Alduikhla astrologer has used as a raw material source for alumina production.

The alumina concentration in the Iraqi kaolin is more than 34% which considered as a good replacement for bauxite rack.

Crushing andground is the first process to reduce the kaolin particle size to the micron level which increases the surface area of kaolin.

The kaolin is heat treated at different temperatures (600, 650, 700 and 750) ̊C for 2 hours to remove some of ithe mpurity like organic materials and crystal water before acid treatment.

A different concentration of hydrochloric acid (pH) (0.45, 0.5, 0.55, 0.6 and 0.65) has used for extraction of alumina from kaolin.

The reaction between the hydrochloric acid and kaolin has studied at different temperature (30, 60 and 90) ̊C.

The extraction of alumina has decreased with increase t inhe reaction temperature.

Finally t,,he alumina extraction by this method has characterized using XRD and XRF to investigation the crystal structure and the amount of impurities presented there.

The final extracted alumina h isaving cubic crystal structure (γ alumina) with purity above 95%.

American Psychological Association (APA)

al-Shammari, Ala Hasan Ali& al-Tai, Muhammad H.& Ayyub, Ihab F.. 2019. The extraction of alumina from kaolin. Engineering and Technology Journal،Vol. 37, no. 4A, pp.133-139.
https://search.emarefa.net/detail/BIM-894861

Modern Language Association (MLA)

al-Shammari, Ala Hasan Ali…[et al.]. The extraction of alumina from kaolin. Engineering and Technology Journal Vol. 37, no. 4A (2019), pp.133-139.
https://search.emarefa.net/detail/BIM-894861

American Medical Association (AMA)

al-Shammari, Ala Hasan Ali& al-Tai, Muhammad H.& Ayyub, Ihab F.. The extraction of alumina from kaolin. Engineering and Technology Journal. 2019. Vol. 37, no. 4A, pp.133-139.
https://search.emarefa.net/detail/BIM-894861

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references : p. 139

Record ID

BIM-894861