SELECTIVE DISSOLUTION OF CRITICAL METALS FROM DIESEL AND NAPTHA SPENT HYDRODESULFURIZATION CATALYSTS

被引：54

作者：

ANGELIDIS, TN

TOURASANIDIS, E

MARINOU, E

STALIDIS, GA

机构：

[1] Laboratory of General and Inorganic Chemical Technology, Department of Chemistry, Aristotle University, 54006 Thessaloniki

来源：

RESOURCES CONSERVATION AND RECYCLING | 1995年 / 13卷 / 3-4期

关键词：

CRITICAL METAL; ALKALI ACID LEACHING; SPENT CATALYST; PETROLEUM REFINING;

D O I：

10.1016/0921-3449(94)00049-B

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The petroleum refining industry makes extensive use of catalysts, containing critical metals, such as, Mo, Co and Ni, for the desulphurization of various oil fractions. The selective recovery of these metals from two uncrushed and at low temperature calcined industrial hydrodesulphurization (Mo-Co/Al2O3 and Mo-Ni/Al2O3-SiO2) catalysts was studied, applying a two-step alkali-acid procedure. Fundamental kinetic aspects of the process, such as, reaction time, leaching reagents concentration and reaction temperature, were studied. Recoveries up to 97% for Mo and up to 92% for Co or Ni in separate solutions were achieved, using low cost and easily available reagents, such as sodium hydroxide and sulphuric acid.

引用

页码：269 / 282

页数：14

共 18 条

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