(19)
(11) EP 4 136 282 A1

(12)

(43) Date of publication:
22.02.2023 Bulletin 2023/08

(21) Application number: 21789259.5

(22) Date of filing: 16.04.2021
(51) International Patent Classification (IPC): 
D01F 13/02(2006.01)
B01D 61/42(2006.01)
C25B 1/22(2006.01)
 D01F 2/02(2006.01)
C25B 1/16(2006.01)
(52) Cooperative Patent Classification (CPC):
C25B 1/16; D01F 13/02; D01F 2/02; C25B 1/22; C01D 5/006; C25B 15/081; C25B 9/21; Y02P 70/62; B01D 61/422
(86) International application number:
PCT/SE2021/050349
(87) International publication number:
WO 2021/211046 (21.10.2021 Gazette 2021/42)
(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: 17.04.2020 SE 2050437

(71) Applicant: TreeToTextile AB
101 23 Stockholm (SE)

(72) Inventor:
  • STIGSSON, Lars
    237 34 BJÄRRED (SE)

(74) Representative: AWA Sweden AB 
Box 5117
200 71 Malmö
200 71 Malmö (SE)

   


(54) PROCESS FOR THE RECOVERY AND RECYCLE OF CHEMICALS IN A REGENERATED CELLULOSE FIBER PROCESS