(19)
(11) EP 3 710 607 A1

(12)

(43) Date of publication:
23.09.2020 Bulletin 2020/39

(21) Application number: 18879504.1

(22) Date of filing: 16.11.2018
(51) International Patent Classification (IPC): 
C22B 59/00(2006.01)
 C22B 7/00(2006.01)
(86) International application number:
PCT/US2018/061561
(87) International publication number:
WO 2019/099859 (23.05.2019 Gazette 2019/21)
(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
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 17.11.2017 US 201762587858 P
12.11.2018 US 201816186897

(71) Applicant: II-VI Delaware, Inc.
Wilmington, Delaware 19801 (US)

(72) Inventors:
  • XU, Wen-Qing
    Medfield Massachusetts 02052 (US)
  • PATKAR, Shailesh
    Irwin Pennsylvania 15642 (US)
  • BEDES, Louie, I.
    Quezon City Metro Manila 1107 (PH)
  • ABELLA, Marie Ysabel, R.
    E.B. Magalona 6118 (PH)
  • ABRENICA, Gomer, M.
    Manaoag 2430 (PH)
  • MATTERA, Vincent, D.
    Orefield PA 18069 (US)

(74) Representative: Eder Schieschke & Partner mbB 
Patentanwälte Elisabethstraße 34
80796 München
80796 München (DE)

   


(54) SELECTIVE RECOVERY OF RARE EARTH METALS FROM AN ACIDIC SLURRY OR ACIDIC SOLUTION