期刊
RESOURCES CONSERVATION AND RECYCLING
卷 88, 期 -, 页码 21-31出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.resconrec.2014.04.007
关键词
Rare earths; Waste tricolor phosphors; Recycling; Technology
资金
- National High Technology Research and Development Program of China [2012AA063207]
- National Natural Scientific Foundation of China [21306004]
- Beijing Municipal Key Discipline, Resource & Environment and Recycling Economy Project [033000541214001]
- State Key Laboratory of Solid Waste Reuse for Building Materials, 13 Scientific Research Base Construction - Scientific and Technological Innovation Platform - Recycling Technology Standard System of Waste Rare Earth and Rare and Precious Metal Product [033000546613001]
- Teaching Strong Deepen Plan for Beijing Talents Among Colleges [PHR20110843]
Rare earths have become the most important strategic resources, widely used as functional materials in industry and many other aspects of life due to its optical, electrical, and magnetic characteristics. As a consequence, a considerable number of wastes containing rare earths such as abandoned fluorescent lamps are generated and lost. Considering the scarcity in availability and supply of certain raw materials, waste tricolor phosphors are viewed as potential resources that can be mined in urban areas for their reutilization as rare earths. A number of studies in this area have been carried out all over the world. The purpose of this paper is to review the current status of recycling technologies of rare earths from waste tricolor phosphors in fluorescent lamps. The main characteristics of the tricolor phosphors were introduced, and also a detail review of the typical single recycling and reusing technologies with regard to waste tricolor phosphors was carried out in present paper. After that, several combined recycling processes and technologies were evaluated. Based on the review, the prospects of recycling technologies were suggested. (C) 2014 Elsevier B.V. All rights reserved.
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