Processing of spent nickel catalyst for fat recovery

Authors

  • Mohammad Ibrahim Nasir Research Department, Jahan Vegetable Oil Co.

DOI:

https://doi.org/10.3989/gya.2002.v53.i2.307

Keywords:

Fat, Isopropanol, Solvent extraction, Spent nickel catalyst

Abstract


Spent nickel catalyst (SNC) have the potential of insulting the quality of the environment in a number of ways. The disposal of SNC will have a pollution effect. Optimum recovery of fat from SNC , could save the environment and reduce the oil loss. Hexane has been the solvent of choice for oil extraction. Alternative solvents that are considered safer have been evaluated. Hexane, isopropanol, ethanol, and heptane were examined using soxhlet extraction. While hexane was more efficient in oil recovery from SNC, isopropanol proved to be very good, to clarifying separation of oil from waste material and also provide high solvent recovery compared to other solvents. Isopropanol extraction with chill provided separation of miscella into two phases: lower oil–rich and an upper solvent – rich. It saved much energy of vaporization for distilling. An aqueous extraction process with immiscible solvent assisted was tested. Solvent like hexane added to SNC, and water added later with continuous stirring. The mixture was stirred for about 30 minutes, prior to centrifugation. Aqueous process extracted less amount of oil compared to solvent extraction.

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Published

2002-06-30

How to Cite

1.
Ibrahim Nasir M. Processing of spent nickel catalyst for fat recovery. grasasaceites [Internet]. 2002Jun.30 [cited 2022Dec.7];53(2):213-7. Available from: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/307

Issue

Section

Research