[12] Patent
[11] Patent No.:GC0009279  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/140792
Date of the Decision to Grant the Patent:04/Dec/2018

[21] Application No.:GC 2014-28605

[22] Filing Date:18/12/2014

[30] Priority:

[33] State [32] Priority date [31] Priority No.
EP
20/12/2013
13006034.6

[72] Inventors:1- Michaël REID،2- Guy PELOQUIN،3- Matthieu St-LAURENT،4- Philippe RACINE

[73] Owner: RIO TINTO ALCAN INTERNATIONAL LIMITED, 1188 Sherbrooke Street West, MONTREAL, QUEBEC H3A 3G2, Canada

[74] Agent: Abu-Gazaleh Intellectual Property L.L.C

  

 

  

[51]IPC:
Int. Cl.: B01D 21/24 (2006.01)

[56] Cited Documents:

-US 4054514 A (OLTMANN HANS HEINRICH) 18 October 1977
-WO 03039707 A1 (ALCAN INT LTD [CA]; PELOQUIN GUY [CA]; SIMARD GUY [CA]; BOIVIN ALAIN [) 15 May 2003
-DE 3612313 A1 (N A G INNOVATIONS UND UMWELTTE [DE]) 15 October 1987
 
Examiner: Eng. Yusuf AlRaqabi

[54] SETTLER FOR DECANTING MINERAL SLURRIES AND METHOD FOR SEPARATING CLARIFIED LIQUID FROM THICKENED SLURRY OF SAID MINERAL SLURRIES
[57] Abstract: A settler (201) for decanting mineral slurries comprising a tank (203) having a side wall (205), a bottom (207) and a top (209), an outlet (211) for a thickened slurry at the bottom of the tank, a first overflow outlet (213) for withdrawing an overflow stream of a clarified liquid, a slurry inlet means (215) for introducing fresh slurry into the tank, the slurry inlet means (215) having a slurry opening (261) through which fresh slurry joins a body of slurry in the tank, and a stirrer (217) having a vertical axis (239) around which the stirrer rotates or reciprocates, in said settler the slurry opening (261) is displaced laterally relative to said vertical axis of the stirrer and said slurry inlet means (215) comprises mixing means (251).A separation installation comprising the above settler and a method for separating a clarified liquid from a thickened slurry of a mineral slurry.
No. of claims: 17     No. of figures: 5


 

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