The Alcan fluidized bed decoater: A new generation of decoating technology
- Alcan International Ltd., Jonquiere, Quebec (Canada). Arvida Research and Development Centre
- Alcan Recycling, Shelbyville, TN (United States)
It is well known that removal of organic material such as lacquer, paint, plastic prior to melting improves aluminum recovery. In addition to being ail important economically, decoating of aluminum scrap has a positive impact on the environment, through better control of gaseous emissions. Most of the existing thermal decoaters for aluminum have been designed to operate with scrap containing a level of organic material lower than 10%. The main field of their present application is for recycling of used aluminum can, where levels of organic material are lower than 4%. Alcan has recently developed a new thermal decoating system in order to extend applications of this process to a much wider variety of aluminum scrap. The new decoater efficiently processes aluminum scrap with a level of organic material LIP to 50%. This new technology features the use of fluidized bed technology to thermally control the process. This innovative feature improves both performance and control over conventional delacquering systems based on hot air convection. This paper describes the basic principles of the technology and the design of the first industrial unit commissioned by the Alcan Recycling plant in Shelbyville (TN) at the beginning of 1994. Typical applications in operating advantages are discussed.
- OSTI ID:
- 197232
- Report Number(s):
- CONF-951105-; ISBN 0-87339-318-X; TRN: IM9612%%6
- Resource Relation:
- Conference: 3. international symposium on reycling of metals and engineered materials, Point Clear, AL (United States), 12-16 Nov 1995; Other Information: PBD: 1995; Related Information: Is Part Of Third international symposium: Recycling of metals and engineered materials; Queneau, P.B. [ed.] [Hazen Research, Inc., Golden, CO (United States)]; Peterson, R.D. [ed.] [Reynolds Metals Co., Muscle Shoals, AL (United States)]; PB: 1048 p.
- Country of Publication:
- United States
- Language:
- English
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