Publisher: Bachudo Science Co. Ltd

Effect of Reaction Temperature and Time On The Recovery of Glycerol From Spent Lye

S. S. Ikiensikimama, P. N. Josiah
KEYWORDS: Glycerol Recovery, Spent Lye, Reaction Temperature, Reaction Time


The effect of reaction temperature and time on the recovery of glycerol from spent lye was investigated using Al2(S04)3 as the precipitating agent and a coagulant followed by subsequent evaporation pf the water of solution. Reaction temperatures of 60, .. 70, 80, 90 and 100°c with varying reaction times of 45, 60 and 90 m_inµtes were investigated. Results show that with a rise in reaction temperature from 60 to 90°C, there is an increase yield of glycerol and a release alil the temperature rises above 90°C. For all reaction time investigated, a maximum glycerol yield -of 11.96% was obtained after treating the spent lye with concentrated. HOI and Ab (S04)3 at a reaction temperature of 90°C with a reaction time of 90 minute:s. The plots obtained can be used as correlations to study glycerol recovery from the treatment of spent lye at different saponification reaction temperatures and times other than the once used in this work

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