Recovery of nickel oxide from spent catalyst of palm oil mill indsutrial waste by leaching treatment

J. Idris, . and K.H. Ku Hamid, . (2008) Recovery of nickel oxide from spent catalyst of palm oil mill indsutrial waste by leaching treatment. [Proceedings Paper]

Malaysia is the world;s largest palm oil producer which estimated about 50 of world production. One of the industrial processes in palm oil refinery is the hydrogenation process which nickel is used as a catalyst. A bench scale study was performed to treat nickel recovery from the spent catalyst resulting from the hydrogenation process in palm oil mill industrial waste by leaching treatment. The characteristic of the waste performed by ICP-OES XRD and chemical analysis showed a high recovery of nickel beside others heavy metal contents in the sludge such as TiO MgNiO CuNiO and LiO. In the leaching process nickel is recovered using H2S04 and few parameters affecting nickel recovery has been considered such as H2S04 acid concentration solid: liquid ratio temperature and time of digestion. The result obtained showed that maximum extraction of about 98 of nickel was achieved by leaching process using 500 micron particle size of spent catalyst with 11 M 61 H2S04 concentration at a ratio 1: 14 solid liquid by weight at a reaction temperature of 100C for 160 minute reaction time.

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Abstract

Malaysia is the world;s largest palm oil producer which estimated about 50 of world production. One of the industrial processes in palm oil refinery is the hydrogenation process which nickel is used as a catalyst. A bench scale study was performed to treat nickel recovery from the spent catalyst resulting from the hydrogenation process in palm oil mill industrial waste by leaching treatment. The characteristic of the waste performed by ICP-OES XRD and chemical analysis showed a high recovery of nickel beside others heavy metal contents in the sludge such as TiO MgNiO CuNiO and LiO. In the leaching process nickel is recovered using H2S04 and few parameters affecting nickel recovery has been considered such as H2S04 acid concentration solid: liquid ratio temperature and time of digestion. The result obtained showed that maximum extraction of about 98 of nickel was achieved by leaching process using 500 micron particle size of spent catalyst with 11 M 61 H2S04 concentration at a ratio 1: 14 solid liquid by weight at a reaction temperature of 100C for 160 minute reaction time.

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Item Type:	Proceedings Paper
Additional Information:	Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. GE90 M3I61 2008 Call Number
AGROVOC Term:	Leaching
AGROVOC Term:	Nickel
AGROVOC Term:	Oxides
AGROVOC Term:	Palm oils
AGROVOC Term:	Sulfuric acid
AGROVOC Term:	Catalysts
AGROVOC Term:	Industrial wastes
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:14
URI:	http://webagris.upm.edu.my/id/eprint/11761

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