METHOD FOR RECOVERING VALUABLE METALS
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Mar 6, 2014
app pub date -
Feb 15, 2012
filing date -
Apr 15, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Provided is a method in which, when discarded batteries such as lithium-ion batteries are treated by a dry process, slag having a reduced viscosity is obtained to heighten the recovery of valuable metals. The method for recovering valuable metals includes a dry process (S20) which includes a melting step (ST21), a slag separation step (ST22), and an alloy separation step (ST23), the slag having an aluminum oxide content of 5 mass % or higher but less than 20 mass % and an iron content in terms of metallic iron amount of 20-40 mass %. Furthermore, silicon oxide and calcium oxide are added as a flux in the melting step (ST21) so that the slag has a melting point of 1,400° C. or lower, and the melting step (ST21) is conducted at 1,400° C. or lower. Thus the recovery of the alloys can be heightened.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully