ALUM FROM KAOLIN: PRODUCTION, ANALYSIS AND QUALITY STUDIES
ALUM FROM KAOLIN: PRODUCTION, ANALYSIS AND QUALITY STUDIES
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Date
1999-02
Authors
ADESINA, OLALEKAN BABATUNDE
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Abstract
Alums have been produced from kaolin clay using two processes of production: the
base leached process and the acid leached process. Kaolin clay which has some
quantity of potassium in it as part of its constituent members gave alum samples that
have above the stochiometric value of 8.23% in it.
The base leached process gave a yield of 29.20 ± 1.07% of alum using the raw
kaolin and 31.87 ± 1.13% of alum using calcined kaolin clay. Also, the acid-leached
process gave a yield of 47.35 ± 1.64% of alum using raw kaolin and 59.47 ± 1.32%
of alum using the kaolin clay
Kaolin was blended with aluminium rich material such as alumina (Al203) and
aluminium scraps to bring the quantity of the potassium in the alums to the
stochiometric values.
X-ray flourescence technique was used for the elemental analysis of the alums.
This technique is good for analysing solid samples without having to solubilise them.
The coagulative activities of the produced alums and the commercially available
alums were assessed using both domestic water and tannery waste water samples.
Description
A THESIS SUBMITTED TO THE POSTGRADUATE SCHOOL, AHMADU
BELLO UNIVERSITY, ZAR1A IN PARTIAL FULFILMENT OF THE
REQUIREMENTS FOR THE AWARD OF THE DEGREE OF MASTER OF
SCIENCE IN ANALYTICAL CHEMISTRY
DEPARTMENT OF CHEMISTRY
FACULTY OF SCIENCE
AHMADU BELLO UNIVERSITY
ZARIA-NIGERIA
FEBRUARY 1999
Keywords
ALUM,, KAOLIN:,, ANALYSIS,, QUALITY STUDIES