The hot aluminum dross recycling (HDR) system
- Spalco Metals Inc., Toronto, Ontario (Canada)
- MICA Metals Inc., Bloomfield Hills, MI (United States)
The usual methods of processing aluminum dross involve first cooling the dross to room temperature by means such as rotary drum coolers, stationary inert gas coolers or floor spreading, with varying effectiveness. The remaining metal is then recovered by reheating the raw dross (or a milled concentrate) with salt flux in a rotary furnace or, less frequently, in a side-well reverbatory furnace. It has long been apparent that there would be energy savings and probably recovery improvements if hot dross could be processed directly in a rotary furnace. The first requirement is that the processing plant be close to the furnaces generating the dross, which is often not the case. Even when this is the case, most if not all attempts to process hot dross directly have failed. The principal cause has been that the supply of dross is irregular. The solution, perhaps obvious in hindsight, is to devise a means of decoupling the generation of hot dross by the cast house and its consumption by the recovery furnace. Reliable and economical equipment had to be developed to store the hot dross for processing at a convenient time. The Hot Dross Holder is the core development which led to the success of the Hot Dross Recycling (HDR) system at MICA Metals Inc.
- OSTI ID:
- 372098
- Report Number(s):
- CONF-960202-; ISBN 0-87339-312-0; TRN: IM9641%%175
- Resource Relation:
- Conference: Annual meeting and exhibition of the Minerals, Metals and Materials Society (TMS), Anaheim, CA (United States), 4-8 Feb 1996; Other Information: PBD: 1996; Related Information: Is Part Of Light metals 1996; Hale, W. [ed.] [Anglesey Aluminum Metal Ltd., North Wales (United Kingdom)]; PB: 1304 p.
- Country of Publication:
- United States
- Language:
- English
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