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Development of fatliquor (surfactant)
from castor oil/rubber seed oil blends
Olawale, A.S
Department of Chemical Engineering, Ahmadu Bello University, Zaria.
Abstract
Castor (Ricinus communis)
oil was sulphated at 10oC and 25oC. Blends of
castor oil and rubberseed (Hevea braziliensis) oil mixed in three
different ratios were sulphated at 25oC. Castor oil
sulphated at 25oC was found to incorporate a greater
amount of surface active (SO42-) group than
the same oil sulphated at 10oC. The sulphated product
derived from the blend containing 50% (w/w) castor oil showed the
best potential in terms of appearance of the product and stability
of its oil-in-water (o/w) emulsion. The other two blends
(containing 33.3% and 25% castor oil) also showed adequate
stability. Each of the blends incorporated higher surface active
(SO42-) group than the unblended castor oil.
This trend appeared to increase with proportion of rubber-seed oil
in the fatliquors. |
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