(19)
(11) EP 3 765 406 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:
08.06.2022 Bulletin 2022/23

(45) Mention of the grant of the patent:
02.03.2022 Bulletin 2022/09

(21) Application number: 19726136.5

(22) Date of filing: 14.03.2019
(51) International Patent Classification (IPC): 
C01B 35/10(2006.01)
 B01D 9/00(2006.01)
(52) Cooperative Patent Classification (CPC):
C01B 35/109; B01D 9/0059; B01D 9/0004; B01D 9/0022
(86) International application number:
PCT/IB2019/052075
(87) International publication number:
WO 2019/175825 (19.09.2019 Gazette 2019/38)

(54)

PURIFICATION OF BORIC ACID WITH ION EXCHANGE PROCESS

REINIGUNG VON BORSÄURE MIT IONENAUSTAUSCHVERFAHREN

PURIFICATION D'ACIDE BORIQUE AVEC UN PROCÉDÉ D'ÉCHANGE D'IONS

(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

(30) Priority: 14.03.2018 TR 201803636

(43) Date of publication of application:
20.01.2021 Bulletin 2021/03

(73) Proprietor: Tubitak
06100 Ankara (TR)

(72) Inventors:
  • YAKAR ELBEYLI, Iffet
    41470 Kocaeli (TR)
  • BAYKAN, Ahmet
    34752 Istanbul (TR)
  • TURAN, Abdullah Zahid
    41470 Kocaeli (TR)
  • KALAFATOGLU, Ismail Ersan
    34722 Istanbul (TR)
  • BILEN, Murat
    Etimesgut, 06797 Ankara (TR)
  • TEKTAS , Erhan
    Keçiören, 06010 Ankara (TR)
  • METIN, Fazli Cabbar
    Etimesgut, 06797 Ankara (TR)


(56) References cited: : 
CN-A- 104 743 564
US-A- 3 103 412
 CN-B- 105 347 353
US-A- 5 084 260
   
  • ÖZKAN AYDIN ET AL: "A semiempirical kinetic model for removal of iron (Fe 3+ ) from saturated boric acid solution by ion exchange using amberlite IR-120 resin", PARTICULATE SCIENCE AND TECHNOLOGY, vol. 35, no. 5, 12 August 2015 (2015-08-12), pages 505-511, XP055602361, US ISSN: 0272-6351, DOI: 10.1080/02726351.2015.1076916
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).