Oil sands fluid fine tailings dewatering using rim ditching
US8806774B2 · kind B2 · utility
2Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2012 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Apr 27, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A process of dewatering tailings is provided comprising mixing the tailings with a sufficient amount of an additive or a mixture thereof; depositing the resulting mixture into a disposal area; pumping water from the deposit to one or more sumps, and allowing the deposit to reach a sufficient strength; and removing remaining deposit water and rainfall through one or more of a network of ditches, a decant tower, or a plurality of dike drainage structures to yield a non-segregating deposit for reclamation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.