Invention Grant
- Patent Title: Utilizing engineered media for recovery of minerals in tailings stream at the end of a flotation separation process
-
Application No.: US15776148Application Date: 2016-11-16
-
Publication No.: US11517918B2Publication Date: 2022-12-06
- Inventor: Paul J. Rothman , Mark R. Fernald , Peter A. Amelunxen , Paul Dolan , Timothy Bailey , Michael Ryan
- Applicant: CiDRA CORPOPRATE SERVICES LLC
- Applicant Address: US CT Wallingford
- Assignee: CiDRA CORPOPRATE SERVICES LLC
- Current Assignee: CiDRA CORPOPRATE SERVICES LLC
- Current Assignee Address: US CT Wallingford
- Agency: Ware, Fressola, Maguire & Barber LLP
- International Application: PCT/US2016/062242 WO 20161116
- International Announcement: WO2017/087498 WO 20170526
- Main IPC: B03D1/14
- IPC: B03D1/14 ; B03D1/016 ; B03D1/02 ; B03D1/08 ; C08F236/06 ; C08F236/08 ; B03D1/004

Abstract:
Apparatus uses engineered collection media to recover mineral particles in a mineral extraction process, e.g., for processing a tailings stream at the end of a flotation separation process. The engineered collection media are added to slurry/tailings containing the mineral particles. The engineered collection media have collection surfaces coated with a chemical selected for attracting the mineral particles to the collection surfaces so the engineered collection media becomes mineral laden media in the slurry/tailings in a loading stage. The apparatus include three stages: removing unwanted material from mineral laden media; using a stripping agent to strip the mineral particles from the mineral laden media; and separating the engineered collection media from the mineral particles and the stripping agent. The stripping agent is reused for stripping, and the engineered collection media are returned to the loading stage. The engineered collection media can have a smooth or foam-like surface.
Public/Granted literature
Information query