Autoclave having an agitator with an aerating impeller for high oxygen transfer rate to metal-containing slurries and method of use
US6183706A · kind A · utility
26Cited by
9References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 11, 1998 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Mar 11, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method is disclosed for recovering a metal from a metal containing material by autoclaving with an autoclave which includes an agitator that includes a first inlet for a recycled oxygen-containing gas, a second inlet for a fresh oxygen-containing gas, an impeller having a plurality of outlets to recirculate or introduce the oxygen-containing gases into the slurry and a set of mixing blades located below the outlets to radially disperse gas bubbles substantially uniformly throughout the slurry. The outlets for the gas can be located in an intermediate set of blades for thorough dispersion of the gas bubbles in the slurry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.