VALUABLE METALS RECOVERY FROM SPENT CATALYSTS BY SELECTIVE CHLORINATION

被引：52

作者：

GABALLAH, I

DJONA, M

MUGICA, JC

SOLOZOBAL, R

机构：

[1] Mineral Processing and Environmental Engineering Team, LEM, CNRS UA 235, Vandæuvre

[2] Laboratorios de Investigacion y Asesoramiento Metalurgico INASMET, San Sebastian

来源：

RESOURCES CONSERVATION AND RECYCLING | 1994年 / 10卷 / 1-2期

关键词：

D O I：

10.1016/0921-3449(94)90041-8

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The food, chemical, petroleum, petrochemical and other industries generate thousands of tons per year of spent catalysts containing up to 35% valuable metals such as Co, Cr, Cu, Ni, Mo, Ti, V, W. The recycling of these materials will lead to provision of significant quantities which are currently imported from outside the EC countries and could contribute to the improvement of the environment. Selective chlorination of these spent catalysts with different chlorinating ps mixtures between 300 and 600-degrees-C is investigated for the recovery of their valuable elements. Depending on the experimental conditions, it is possible to recover up to 98% of the Ni and Co, as chlorides from the chlorination residue and about 98% of the Mo, Ti & W and 80% of vanadium compounds in the condensates. The catalyst support chlorination could be limited to less than 5%. Besides the reaction temperature and time, the oxygen partial pressure in the chlorinating ps mixture is a key factor for the selectivity of the chlorination.

引用

页码：87 / 96

页数：10

共 20 条

[1]

Gaballah, Djona, Kanari, Recovery of Co, Mo and Ni contained in the spent catalysts, EC, Report No. 4, Contract No. MA1R-0014-C(A), 2-90, pp. 57-70, (1990)

[2]

Sebenik, Ference, Recovery of Metal values from spent coMo/A1203 petroleum hydrodesulfurization and coal liquefaction catalysts: laboratory-scale process and preliminary economics, Symposium on recovery of spent catalysts, Kansas City Meeting, (1982)

[3]

Parkinson, Ushio, Hibbs, Hunter, Recylers try new ways to process spent catalysts, Chem. Eng., (1987)

[4]

Biswas, Wakihara, Taniguchi, Recovery of Vanadium and Molybdenum from heavy oil desulphurization waste catalyst, Hydrometallurgy, 14, pp. 210-230, (1985)

[5]

Marcantonio, Treatment of alumina-base catalysts, U.S. Patent No. 4,537,751, 27/3/1985, (1985)

[6]

Sebenik, La Valle, Laferty, May, Recovery of Metal values from spent Hydrodesulfurization Catalysts, U.S. Patent No. 4,495,157, 22/1/1985, (1985)

[7]

Rokukawa, Method for selective recovery of Molybdenum and Vanadium Values from spent catalysts, U.S. Patent No. 4,382,068, 3/3/1983, (1983)

[8]

Tilley, Method for recovering valuable metals from deactivated catalysts, U.S. Patent No.4,343,774, 10/08/1982, (1982)

[9]

Su, Natansohn, Process for the recovery of Molybdenum from spent catalysts, U.S. Patent No. 4,328,191, 4/3/1982, (1982)

[10]

Taylor, Mocella, Recovery of Molybdenum as an aqueous solution from spent catalyst, U.S. Patent No. 4,315,896 16-2-1982., (1982)

← 1 2 →