Title:
PROCESSING OF LATERITE ORES
Document Type and Number:
WIPO Patent Application WO/2019/244091
Kind Code:
A3
Abstract:
This invention relates to a method for processing nickel laterite ore, including the steps of obtaining a mined laterite ore from a mining operation 42; and feeding the ore through a bulk sorter 44 comprising a sensor arrangement and a diverting mechanism that separates the ore into a beneficiated stream of nickel laterite ore 28 wherein the grade of nickel is higher than the grade of the ore fed into the bulk sorter for further processing 52 by leaching or smelting; one or more low grade fractions of ore 50 with a lower nickel grade than the beneficiated stream; and a waste fraction 46. This configuration efficiently separates lower grade patches in the run of mine ore, to either a low-grade stockpile or waste, and efficiently blends the selected high-grade ore to meet the specifications of the subsequent processing.
Inventors:
FILMER ANTHONY OWEN (AU)
ALEXANDER DANIEL JOHN (GB)
DINIZ CLAUDIA VILLA (BR)
ALEXANDER DANIEL JOHN (GB)
DINIZ CLAUDIA VILLA (BR)
Application Number:
PCT/IB2019/055198
Publication Date:
May 14, 2020
Filing Date:
June 20, 2019
Export Citation:
Assignee:
ANGLO AMERICAN SERVICES UK LTD (GB)
BEHARIE TERTIA (ZA)
BEHARIE TERTIA (ZA)
International Classes:
C22B23/00; C22B3/00; C22B23/02
Foreign References:
| US20130201481A1 | 2013-08-08 | |||
| US20020041840A1 | 2002-04-11 | |||
| US4744459A | 1988-05-17 | |||
| US20110272508A1 | 2011-11-10 | |||
| US5850341A | 1998-12-15 | |||
| US6322293B1 | 2001-11-27 | |||
| US20190390300A1 | 2019-12-26 |
Other References:
ABZALOV ET AL: "Optimisation of the grade control procedures at the Yandi iron-ore mine, western australia: geostatistical approach.", APPLIED EARTH SCIENCE, vol. 119, no. 3, 1 September 2010 (2010-09-01), pages 132 - 142, XP055730887
HENNING KNAPP, KILIAN NEUBERT, CHRISTIAN SCHROPP, HERMANN WOTRUBA: "Viable Applications of Sensor-Based Sorting for the Processing of Mineral Resources", CHEMBIOENG REVIEWS, vol. 1, no. 3, 1 June 2014 (2014-06-01), pages 86 - 95, XP55730894
HENNING KNAPP, KILIAN NEUBERT, CHRISTIAN SCHROPP, HERMANN WOTRUBA: "Viable Applications of Sensor-Based Sorting for the Processing of Mineral Resources", CHEMBIOENG REVIEWS, vol. 1, no. 3, 1 June 2014 (2014-06-01), pages 86 - 95, XP55730894
Attorney, Agent or Firm:
SPOOR & FISHER et al. (ZA)
Download PDF: