Invention Grant
- Patent Title: Methods and systems for removing copper from ferrous scrap
- Patent Title (中): 从铁废料中去除铜的方法和系统
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Application No.: US10568845Application Date: 2004-08-18
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Publication No.: US07789936B2Publication Date: 2010-09-07
- Inventor: Weol Dong Cho , Peng Fan
- Applicant: Weol Dong Cho , Peng Fan
- Applicant Address: US UT Salt Lake City
- Assignee: University of Utah Research Foundation
- Current Assignee: University of Utah Research Foundation
- Current Assignee Address: US UT Salt Lake City
- Agency: Workman Nydegger
- International Application: PCT/US2004/026902 WO 20040818
- International Announcement: WO2005/019481 WO 20050303
- Main IPC: C22B15/00
- IPC: C22B15/00 ; C22B7/00
Abstract:
Methods and systems for removing copper from ferrous scrap are described. Some amounts of copper in ferrous scrap are removed by oxidation and subsequent mechanical impact of the oxidized scrap. Further removal of copper from the solid scrap can be achieved by fluxing the copper oxide below the melting point of ferrous scrap using CaO—SiO2—B2O3— and Na2O—SiO2—B2O3-based slags. Using the invention, copper can be removed from ferrous scrap in a natural, cost-effective, and environmental-friendly manner.
Public/Granted literature
- US20070264151A1 Methods And Systems For Removing Copper From Ferrous Scrap Public/Granted day:2007-11-15
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