Selective recovery of metals from spent desulfurization catalyst

Kim K; Cho JW

Korean Journal of Chemical Engineering, Vol.14, No.3, 162-167, May, 1997

Valuable metals including V, Mo, Ni, Co, and Al were selectively recovered from spent desulfurization catalyst by means of extractive separation. Prior to selective metal recovery the spent catalyst was roasted at temperatures of 400-800℃, and BET, SEM, ad XRD data showed that roasting the spent catalyst at 550℃ gave birth to the surface and pore structures accounting for good extractibility of the roasted spent catalyst. A sequential scheme consisting of leaching and chelate extraction was developed to recover the metals from the spent catalyst roasted at 550℃ and oxygen space velocity of ca. 1800 hr^-1.

Keywords:Extractive Separation;Selective Metal Recovery;Roasted Spent Catalyst;Surface and Pore Structures;Extractibility

[References]

Crnojevich R, Wiewiorowski EI, Tinnin LR, Case AB, J. Metal., 42 (1990)
Fischer RG, VanSavage CA, "Stripping Metals from Spent Catalysts," U.S. Patent, 4,585,628 (1986)
Howard RA, Barnes WR, "Process for Recovering Valuable Metals from Spent Catalysts," U.S. Patent, 5,013,533 (1991)
Inoue K, "Solvent Extraction of Nickel and Cobalt at Low pH with Synergistic Mixtures," Proceedings of 4th Japan-Korea Symposium on Separation Technology, Tokyo, Japan, 311 (1996)
Jeffery GH, Bassett J, Mendham J, Denny RC, "Vogel's Textbook of Quantitative Chemical Analysis," 5th ed., Longman Publishing Co., England (1989)
Kelebek S, Distin PA, J. Chem. Technol. Biotechnol., 44, 309 (1989)
Marafi M, Stanislaus A, Mumford CJ, Fahim M, Appl. Catal., 47, 85 (1989)
Nevitt TD, "Process for Removing Metals from Spent Catalyst," U.S. Patent, 4,677,085 (1987)
Ritcey GM, Ashbrook AW, "Solvent Extraction: Principles and Applications to Process Metallurgy, Part II," Elsevier Scientific Publishing Co., New York (1979)
Sebenik RF, Lavalle PP, Laferty JM, May WA, "Recovery of Metal Values from Spent Hydrodesulfurization Catalysts," U.S. Patent, 4,495,157 (1985)
Smith BJ, Wei J, J. Catal., 132, 21 (1991)
Tamm PW, Harnsberger HF, Bridge AG, Ind. Eng. Chem. Process Des. Dev., 20, 262 (1981)
Thakur DS, Thomas MG, Appl. Catal., 15, 197 (1985)
Tilley GL, "Recovery of Metal Values from Spent Catalysts," U.S. Patent, 4,721,606 (1988)
Twigg MV, "Catalyst Handbook," 2nd ed., Wolfe Publishing Co., London (1989)
Wiewiorowski E, "Selective Extraction of Molybdenum and Vanadium from Spent Catalysts by Oxidative Leaching with Sodium Aluminate and Caustic," U.S. Patent, 4,666,685 (1987)
Wiewiorowski E, Tinnin R, Cmojevich R, "A Cyclic Process for Recovery of Metals from Spent Catalysts," Proceedings of SME Annual Meeting, Phoenix, U.S.A., SME reprint # 88-168 (1988)

[Referenced By]

[1] Crnojevich R, Wiewiorowski EI, Tinnin LR, Case AB, J. Metal., 42 (1990)

[2] Fischer RG, VanSavage CA, "Stripping Metals from Spent Catalysts," U.S. Patent, 4,585,628 (1986)

[3] Howard RA, Barnes WR, "Process for Recovering Valuable Metals from Spent Catalysts," U.S. Patent, 5,013,533 (1991)

[4] Inoue K, "Solvent Extraction of Nickel and Cobalt at Low pH with Synergistic Mixtures," Proceedings of 4th Japan-Korea Symposium on Separation Technology, Tokyo, Japan, 311 (1996)

[5] Jeffery GH, Bassett J, Mendham J, Denny RC, "Vogel's Textbook of Quantitative Chemical Analysis," 5th ed., Longman Publishing Co., England (1989)

[6] Kelebek S, Distin PA, J. Chem. Technol. Biotechnol., 44, 309 (1989)

[7] Marafi M, Stanislaus A, Mumford CJ, Fahim M, Appl. Catal., 47, 85 (1989)

[8] Nevitt TD, "Process for Removing Metals from Spent Catalyst," U.S. Patent, 4,677,085 (1987)

[9] Ritcey GM, Ashbrook AW, "Solvent Extraction: Principles and Applications to Process Metallurgy, Part II," Elsevier Scientific Publishing Co., New York (1979)

[10] Sebenik RF, Lavalle PP, Laferty JM, May WA, "Recovery of Metal Values from Spent Hydrodesulfurization Catalysts," U.S. Patent, 4,495,157 (1985)

[11] Smith BJ, Wei J, J. Catal., 132, 21 (1991)

[12] Tamm PW, Harnsberger HF, Bridge AG, Ind. Eng. Chem. Process Des. Dev., 20, 262 (1981)

[13] Thakur DS, Thomas MG, Appl. Catal., 15, 197 (1985)

[14] Tilley GL, "Recovery of Metal Values from Spent Catalysts," U.S. Patent, 4,721,606 (1988)

[15] Twigg MV, "Catalyst Handbook," 2nd ed., Wolfe Publishing Co., London (1989)

[16] Wiewiorowski E, "Selective Extraction of Molybdenum and Vanadium from Spent Catalysts by Oxidative Leaching with Sodium Aluminate and Caustic," U.S. Patent, 4,666,685 (1987)

[17] Wiewiorowski E, Tinnin R, Cmojevich R, "A Cyclic Process for Recovery of Metals from Spent Catalysts," Proceedings of SME Annual Meeting, Phoenix, U.S.A., SME reprint # 88-168 (1988)