Title:
FROTH FLOTATION CONTROL
Document Type and Number:
WIPO Patent Application WO/2012/110284
Kind Code:
A3
Abstract:
The present invention is concerned with model-based control of a froth flotation process for concentrating a desired target mineral from ground ore. It exploits real time information about a surface tension of a pulp or flotation solution comprising the minerals. The surface tension represents exemplary additional information about the surface chemistry in the flotation process, and as such enables a refinement of a pulp model used in control of the flotation process. Ultimately, operational efficiency of a froth flotation plant is increased.
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Inventors:
KRAMER AXEL (CH)
LOBO JULIO DANIN (CH)
DE SALLES LEAL FILHO LAURINDO (BR)
GAULOCHER SEBASTIAN (CH)
MARTINS MARISA (BR)
LOBO JULIO DANIN (CH)
DE SALLES LEAL FILHO LAURINDO (BR)
GAULOCHER SEBASTIAN (CH)
MARTINS MARISA (BR)
Application Number:
PCT/EP2012/051126
Publication Date:
December 27, 2012
Filing Date:
January 25, 2012
Export Citation:
Assignee:
ABB RESEARCH LTD (CH)
KRAMER AXEL (CH)
LOBO JULIO DANIN (CH)
DE SALLES LEAL FILHO LAURINDO (BR)
GAULOCHER SEBASTIAN (CH)
MARTINS MARISA (BR)
KRAMER AXEL (CH)
LOBO JULIO DANIN (CH)
DE SALLES LEAL FILHO LAURINDO (BR)
GAULOCHER SEBASTIAN (CH)
MARTINS MARISA (BR)
International Classes:
B03D1/02; G05B13/04
Other References:
M. MALDONADO ET AL: "Potential use of model predictive control for optimizing the column flotation process", INTERNATIONAL JOURNAL OF MINERAL PROCESSING, vol. 93, no. 1, 1 September 2009 (2009-09-01), pages 26 - 33, XP055001224, ISSN: 0301-7516, DOI: 10.1016/j.minpro.2009.05.004
CHAU T T ET AL: "A review of factors that affect contact angle and implications for flotation practice", ADVANCES IN COLLOID AND INTERFACE SCIENCE, ELSEVIER, NL, vol. 150, no. 2, 30 September 2009 (2009-09-30), pages 106 - 115, XP026458962, ISSN: 0001-8686, [retrieved on 20090712]
CHAU T T ET AL: "A review of factors that affect contact angle and implications for flotation practice", ADVANCES IN COLLOID AND INTERFACE SCIENCE, ELSEVIER, NL, vol. 150, no. 2, 30 September 2009 (2009-09-30), pages 106 - 115, XP026458962, ISSN: 0001-8686, [retrieved on 20090712]
Attorney, Agent or Firm:
MEIER, Jürg (c/o ABB Schweiz AGIntellectual Property CH-LI/I, Brown Boveri Strasse 6 Baden, CH)
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