(19)
(11) EP 3 897 994 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
08.11.2023 Bulletin 2023/45

(45) Mention of the grant of the patent:
04.10.2023 Bulletin 2023/40

(21) Application number: 18943580.3

(22) Date of filing: 18.12.2018
(51) International Patent Classification (IPC): 
B03D 1/02(2006.01)
B03B 7/00(2006.01)
C22B 3/20(2006.01)
C22B 26/12(2006.01)
C02F 103/16(2006.01)
B03D 1/001(2006.01)
C02F 9/00(2023.01)
C02F 11/14(2019.01)
C02F 101/10(2006.01)
B03D 1/14(2006.01)
C02F 1/24(2023.01)
C22B 11/00(2006.01)
B03D 103/02(2006.01)
B03D 1/08(2006.01)
C02F 1/00(2023.01)
C02F 1/52(2023.01)
C02F 11/121(2019.01)
C02F 103/10(2006.01)
(52) Cooperative Patent Classification (CPC):
B03B 7/00; B03D 1/02; C02F 1/24; B03D 1/028; B03D 1/1431; B03D 1/001; B03D 2201/002; B03D 2203/02; B03D 2203/008; C02F 11/121; C02F 11/14; C02F 2101/10; C02F 2103/10; C02F 9/00; C02F 2301/08; C02F 2303/04; C02F 1/004; C02F 1/52; C22B 11/04; C22B 26/12; C22B 3/20; Y02P 10/20; B03D 1/08
(86) International application number:
PCT/FI2018/050943
(87) International publication number:
WO 2020/128137 (25.06.2020 Gazette 2020/26)

(54)

METHOD AND ARRANGEMENT FOR PROCESS WATER TREATMENT

VERFAHREN UND ANORDNUNG ZUR PROZESSWASSERBEHANDLUNG

PROCÉDÉ ET AGENCEMENT POUR UN TRAITEMENT D'EAU DE TRAITEMENT


(84) 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

(43) Date of publication of application:
27.10.2021 Bulletin 2021/43

(73) Proprietor: Metso Finland Oy
02230 Espoo (FI)

(72) Inventor:
  • JANSSON, Kaj
    33250 Tampere (FI)

(74) Representative: Papula Oy 
P.O. Box 981
00101 Helsinki
00101 Helsinki (FI)


(56) References cited: : 
WO-A1-03/045567
US-A- 2 144 254
US-A- 3 782 539
US-A1- 2006 226 051
WO-A1-2016/170437
US-A- 3 622 087
US-A- 5 837 210
US-A1- 2017 106 378
   
  • Azevedo A; Oliveira H A; Rubio J: "Treatment and water reuse of lead-zinc sulphide ore mill wastewaters by high rate dissolved air flotation", Minerals Engineering, vol. 127, 4 August 2018 (2018-08-04), pages 114-121, XP085457064, OXFORD, GB ISSN: 0892-6875, DOI: 10.1016/j.mineng.2018.07.011
  • Tian Jia; Xu Longhua; Wu Houqin; Fang Shuai; Deng Wei; Peng Tiefeng; Sun Wei; Hu Yuehua: "A novel approach for flotation recovery of spodumene, mica and feldspar from a lithium pergamite ore", Journal of Cleaner Production, vol. 174, 31 October 2017 (2017-10-31), pages 625-633, XP085313486, ISSN: 0959-6526, DOI: 10.1016/j.jclepro.2017.10.331
  • Li Si; Lu Dongfang; Chen Xinghua; Zheng Xiayu; Li Xudong; Chu Haoran; Wang Yuhua: "Industrial application of a modified pilot-scale Jameson cell for the flotation of spodumene ore in high altitude area", Power Technology - Electrostatic Phenomena in Particulate Processes, vol. 320, 25 July 2017 (2017-07-25), pages 358-361, XP085169083, ISSN: 0032-5910, DOI: 10.1016/j.powtec.2017.07.070
  • ANDREY, K. ET: "Substantiation of the technological processes for effective extraction of PGM from dunites, Urals platinum belt", IMPC 2014 - 27th International Mineral Processing Congress, 31 October 2014 (2014-10-31), pages 1-9, XP055721520, Russia
   
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