Method and apparatus for liquid/solid separation such as dewatering particulate solids and agitation leaching
US11344823B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Oct 31, 2018 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Feb 22, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods and apparatus for liquid/solid separation for use in applications such as dewatering fine particulate solids, and recovery of valuable metals from ore in a leaching process are provided. One application relates to methods of agitation leaching of metals such as gold from gold-bearing feedstock. A slurry is formed in a tank by agitation, and allowed to settle. A filter bed forms to drain the liquid from the tank, and a vertical screen pipe such as a well point addresses the formation of an impervious film on the upper surface of the filter bed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.