In-situ treatment of tailings
US-2017267557-A1 · Sep 21, 2017 · US
Treatment of thick fine tailings including chemical immobilization, polymer flocculation and dewatering
US11124706B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11124706-B2 |
| Application number | US-201716079455-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 23, 2017 |
| Priority date | Feb 24, 2016 |
| Publication date | Sep 21, 2021 |
| Grant date | Sep 21, 2021 |
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Abstract
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A process for the treatment of thick fine tailings that include constituents of concern (CoCs) and suspended solids is provided. The process includes subjecting the thick fine tailings to treatments including chemical immobilization of the CoCs, polymer flocculation of the suspended solids, and dewatering. The chemical immobilization can include the addition of compounds enabling the insolubilization of the CoCs. Subjecting the thick fine tailings to chemical immobilization and polymer flocculation can facilitate production of a reclamation-ready material, which can enable disposing of the material as part of a permanent aquatic storage structure (PASS).
First claim
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The invention claimed is: 1. A process for treating mature fine tailings (MFT) derived from oil sands extraction and including contaminants of concern (CoCs) comprising bitumen, naphthenic acid, arsenic and selenium, the process comprising: retrieving MFT from a tailings pond; providing an in-line flow of the MFT; adding in-line an aqueous immobilization solution into the in-line flow of MFT and in-line mixing therewith, the aqueous immobilization solution comprising an immobi…
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- What does patent US11124706B2 cover?
- A process for the treatment of thick fine tailings that include constituents of concern (CoCs) and suspended solids is provided. The process includes subjecting the thick fine tailings to treatments including chemical immobilization of the CoCs, polymer flocculation of the suspended solids, and dewatering. The chemical immobilization can include the addition of compounds enabling the insolubili…
- Who is the assignee on this patent?
- Suncor Energy Inc
- What technology area does this patent fall under?
- Primary CPC classification B09B3/23. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 21 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).