Reduction treatment apparatus and method of reduction treatment

Details Reduction treatment apparatus and method of reduction treatment Reduction treatment apparatus and method of reduction treatment

2009-12-03

2011-12-13

Wyszomierski, George (Department: 1733)

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

C075S622000, C266S044000, C266S173000

Reexamination Certificate

active

08075665

ABSTRACT:
A reduction treatment apparatus can include a reduction furnace configured to reduce zinc and/or iron oxide through heat treatment of zinc-containing iron oxide or zinc oxide or iron oxide, with a reducing material. The reduction treatment apparatus also has an oxide inlet configured to supply to the reduction furnace the zinc-containing iron oxide or zinc oxide or iron oxide. The reduction treatment apparatus further has a reducing material inlet configured to supply to the reduction furnace the reducing material. The reducing material can comprise at least one of ASR, shredder dust of home electric appliances, waste plastics, refuse derived fuel, refuse paper and plastic fuel, sludge, oil mud, chips of wood, thread debris, rubber debris, and animal and plant residues. The reduction furnace can be configured to use the reducing material as a heating material and reduce the zinc-containing iron oxide or zinc oxide or iron oxide without auxiliary fuel.

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patent: 7438730 (2008-10-01), Igawa et al.
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patent: 2006-328451 (2006-12-01), None
patent: 2006328451 (2006-12-01), None
Machine translation of JP 2006-328451 published Dec. 2006.
International Preliminary Report on Patentability for international application No. PCT/JP2008/059465 filed May 22, 2008 issued on Dec. 17, 2009.

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