Processes for recovering non-ferrous metals from solid matrices
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Jan 14, 2020
Grant Date -
Jun 21, 2018
app pub date -
Feb 15, 2018
filing date -
Feb 15, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A process for recovering non-ferrous metals from a solid matrix may include: (a) leaching the solid matrix with an aqueous-based solution containing chloride ions, ammonium ions, and Cu2+ ions, having a pH of 6.5-8.5, in a presence of oxygen, at a temperature of 100° C.-160° C. and a pressure of 150 kPa-800 kPa, so as to obtain an extraction solution comprising leached metals and solid leaching residue; (b) separating the solid leaching residue from the extraction solution; and/or (c) subjecting the extraction solution to at least one cementation so as to recover the leached metals in elemental state. The pH may be greater than or equal to 6.5 and less than or equal to 8.5. Temperature may be greater than or equal to 100° C. and less than or equal to 160° C. Pressure may be greater than or equal to 150 kPa and less than or equal to 800 kPa.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
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