Invention Grant
- Patent Title: Recovery of nickel in leaching of laterite ores
-
Application No.: US14225639Application Date: 2014-03-26
-
Publication No.: US10053750B2Publication Date: 2018-08-21
- Inventor: Vaikuntam I. Lakshmanan , Ramamritham Sridhar , Md. Abdul Halim , Jonathan Chen , Robert J. DeLaat
- Applicant: Process Research Ortech Inc.
- Applicant Address: CA
- Assignee: PROCESS RESEARCH ORTECH INC.
- Current Assignee: PROCESS RESEARCH ORTECH INC.
- Current Assignee Address: CA
- Agency: Tarolli, Sundheim, Covell & Tummino LLP
- Main IPC: C22B3/00
- IPC: C22B3/00 ; C22B3/30

Abstract:
The invention provides a process for the leaching of a laterite ore or concentrate for the recovery of value metals, at least one value metal being nickel. The laterite ore or concentrate is subjected to a leaching step with a lixiviant comprising hydrochloric acid to leach nickel from the laterite ore. Nickel is extracted with an oxime at a lower pH than other processes for extraction of nickel from solution, especially after separation of iron and cobalt values.
Public/Granted literature
- US20140294702A1 RECOVERY OF NICKEL IN LEACHING OF LATERITE ORES Public/Granted day:2014-10-02
Information query