Bedded mineral extraction process
US4815791A · kind A · utility
84Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1987 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Oct 22, 2007 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/28
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Process for obtaining increased yields of minerals from bedded ore desposits in the absence of natural confining beds, by confining the flow of leach solution to the mineralized zone through operation of wells comprising, (a) injecting ground water into the barren zones above and below the mineralized zone while simultaneously injecting leaching solution into the mineralized zone at a single injection well location, and (b) recovering ground water from barren zones while simultaneously recovering leaching solution from the mineralized zone at a single recovery well location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.