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EP2481482
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EP About this file: EP2481482
| EP2481482 - Control of a froth flotation process with a model based controller using the online measurement of the surface tension [Right-click to bookmark this link] | Status | The application is deemed to be withdrawn Status updated on 28.06.2013 Database last updated on 14.03.2026 | Most recent event Tooltip | 28.06.2013 | Application deemed to be withdrawn | published on 31.07.2013 [2013/31] | Applicant(s) | For all designated states ABB Research Ltd. Affolternstrasse 44 8050 Zürich / CH | [2012/31] | Inventor(s) | 01 /
Kramer, Axel Mittelstrasse 11 5430 Wettingen / CH | 02 /
Lobo, Julio Danin Haselstrasse 19b 5400 Baden / CH | 03 /
de Salles Leal Filho, Laurindo Alameda Ministro Rocha Azevedo, 628 apto. 51 Jardim Paulista 01410-000, São Paulo-SP / BR | 04 /
Gaulocher, Sebastian Innere Altachen 13 4800 Zofingen / CH | 05 /
Martins, Marisa Rua Dr. Silvio Dante Bertacchi, 800 Vila Sônia 05625-000, São Paulo-SP / BR | [2012/31] | Representative(s) | ABB Patent Attorneys C/o ABB Schweiz AG Intellectual Property CH-IP Brown Boveri Strasse 6 5400 Baden / CH | [N/P] |
| Former [2012/31] | ABB Patent Attorneys C/o ABB Schweiz AG Intellectual Property CH-IP Brown Boveri Strasse 6 5400 Baden / CH | Application number, filing date | 11152194.4 | 26.01.2011 | [2012/31] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP2481482 | Date: | 01.08.2012 | Language: | EN | [2012/31] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 11.07.2011 | Classification | IPC: | B03D1/02, B03D1/14 | [2012/31] | CPC: |
B03D1/028 (EP,US);
G05B13/04 (EP,US)
| Designated contracting states | AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR [2012/31] | Extension states | BA | Not yet paid | ME | Not yet paid | Title | German: | Regelung eines Schwimmschaumflotationsprozesses mit einem modellbasierten Regler unter Verwendung einer online Messung der Oberflächenspannung | [2012/31] | English: | Control of a froth flotation process with a model based controller using the online measurement of the surface tension | [2012/31] | French: | Contrôle d'un procédé de flottation par mousse avec un contrôleur basé sur un modèle employant une mesure en ligne de la tension de surface | [2012/31] | Examination procedure | 02.02.2013 | Application deemed to be withdrawn, date of legal effect [2013/31] | 13.03.2013 | Despatch of communication that the application is deemed to be withdrawn, reason: examination fee not paid in time [2013/31] | Fees paid | Renewal fee | 28.01.2013 | Renewal fee patent year 03 |
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| Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court. | Documents cited: | Search | [Y] US6085577 (CHRISTENSEN TANYA C et al.) | [Y] L.G. BERGH ET AL: "The long way toward multivariate predictive control of flotation processes", JOURNAL OF PROCESS CONTROL, vol. 21, no. 2, 15 December 2010 (2010-12-15), pages 226 - 234, XP055001381, ISSN: 0959-1524, DOI: 10.1016/j.jprocont.2010.11.001 DOI: http://dx.doi.org/10.1016/j.jprocont.2010.11.001 | [Y] R PUGH: "Dynamic surface tension measurements in mineral flotation and de-inking flotation systems and the development of the on line dynamic surface tension detector (DSTD)", MINERALS ENGINEERING, vol. 14, no. 9, 1 September 2001 (2001-09-01), pages 1019 - 1031, XP055001220, ISSN: 0892-6875, DOI: 10.1016/S0892-6875(01)00088-7 DOI: http://dx.doi.org/10.1016/S0892-6875(01)00088-7 | [A] 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 DOI: http://dx.doi.org/10.1016/j.minpro.2009.05.004 | [Y] 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] [Y] 1-10 * page 1019 - page 1020 * * page 1029 - page 1030 * DOI: http://dx.doi.org/10.1016/j.cis.2009.07.003 | [A] D HODOUIN: "State of the art and challenges in mineral processing control", CONTROL ENGINEERING PRACTICE, vol. 9, no. 9, 1 September 2001 (2001-09-01), pages 995 - 1005, XP055001383, ISSN: 0967-0661, DOI: 10.1016/S0967-0661(01)00088-0 [A] 1-10 * the whole document * DOI: http://dx.doi.org/10.1016/S0967-0661(01)00088-0 | by applicant | US6085577 | S. GAULOCHER; E. GALLESTEY; H. LINDVALL: "Advanced process control of a froth flotation circuit", INTERNATIONAL MINERAL PROCESSING SEMINAR, vol. V, 2008 | M. MARTINS; L.S. FILHO; B.K. PAREKH: "Surface tension of flotation solution and its influence on the selectivity of the separation between apatite and gangue minerals", MINERALS AND METALLURGICAL PROCESSING, vol. 26, no. 2, 2009, pages 79 |