Method and system for recycling byproduct streams from metal pro

Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

75419, C22B 520

Patent

active

059935120

ABSTRACT:
A method and system for recycling byproduct streams from metal processing operations introduces a flow of a molten mixture of salts, metal and metal oxides from a melting vessel into a flow of water. The molten salts dissolve into the water. The metal oxides, and any metal entrapped in the molten mixture, instantly fragment into small particles. The slurry of brine and small particles flows into a storage tank and from there the brine can be separated from the small particles by employing a series of known liquid-solid separation techniques which preferably utilize cyclones, centrifuges, thickeners, and filters. In the case of aluminum processes, an antioxidant is preferably provided in the holding tank. To increase the settling rate of the solids, a flocculent can be added in the thickener. Salt can be recovered by spraying the brine onto the exterior surface of a rotating drum which is heated to high temperatures such that the water in the brine instantly evaporates and deposits a thin layer of salt on the drum which can be scraped off and prepared for sale. The drum is preferably heated by offgas from existing high temperature metal processing operations. The metal particles can be separated from the metal oxides using known techniques. The separated metals can be charged back into the melting vessel for final recovery. The metal oxides can be either sold or re-used in metal processing operations. Thus, all byproducts are completely recycled and no wastes are landfilled.

REFERENCES:
patent: 3043678 (1962-07-01), Lowry et al.
patent: 3615329 (1971-10-01), Jones et al.
patent: 3770424 (1973-11-01), Floyd et al.
patent: 5013356 (1991-05-01), Olper et al.
patent: 5041398 (1991-08-01), Kauser et al.
patent: 5102453 (1992-04-01), Yerushalmi
patent: 5198200 (1993-03-01), Yerushalmi et al.
patent: 5290535 (1994-03-01), Zuck et al.
patent: 5330618 (1994-07-01), Daniels et al.
patent: 5435835 (1995-07-01), Lynn et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and system for recycling byproduct streams from metal pro does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for recycling byproduct streams from metal pro, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for recycling byproduct streams from metal pro will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1666298

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.