(19)
(11) EP 2 847 232 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:
27.02.2019 Bulletin 2019/09

(45) Mention of the grant of the patent:
12.09.2018 Bulletin 2018/37

(21) Application number: 13727506.1

(22) Date of filing: 09.05.2013
(51) International Patent Classification (IPC): 
C08B 11/12(2006.01)
C22B 1/244(2006.01)
 C22B 1/24(2006.01)
(86) International application number:
PCT/BR2013/000159
(87) International publication number:
WO 2013/166575 (14.11.2013 Gazette 2013/46)

(54)

PROCESS FOR OBTAINING CARBOXYMETHYL CELLULOSE FROM AGRO-INDUSTRIAL RESIDUES AND CARBOXYMETHYL CELLULOSE AND USE THEREOF

VERFAHREN ZUR HERSTELLUNG VON CARBOXYMETHYLCELLULOSE AUS AGRARINDUSTRIELLEN RÜCKSTÄNDEN UND CARBOXYMETHYLCELLULOSE SOWIE VERWENDUNG DAVON

PROCÉDÉ D'OBTENTION DE CARBOXYMÉTHYLCELLULOSE À PARTIR DE RÉSIDUS AGRO-INDUSTRIELS, ET CARBOXYMÉTHYLCELLULOSE ET SON UTILISATION

(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: 09.05.2012 US 201261644856 P

(43) Date of publication of application:
18.03.2015 Bulletin 2015/12

(73) Proprietors:
  • Vale S.A.
    Cep: 20030-000 Rio de Janeiro - RJ (BR)
  • Universidade Federal Do Espírito Santo - Ufes
    Vitória - ES CEP-29075-910 (BR)

(72) Inventors:
  • STEGMILLER, Leonidio
    Jardim, Camburi - Vitória - ES (BR)
  • REIS, Jose Antonino Alves e Silva
    Jardim da Penha - Vitória - ES (BR)
  • DE JESUS, Reinaldo Walmir
    Jardim Camburi - Vitória - ES CEP: 29090-810 (BR)
  • COSTA, Liliane Durans de Moraes
    São Bernardo CEP: 65056-280 São Luis/MA (BR)
  • FERNANDES, Antonio Alberto Ribeiro
    CEP: 29052-730 Ilha do Boi Vitória/ES (BR)
  • ALBUQUERQUE, Erica Dutra
    CEP: 29047-286 Bonfim Vitória/ES (BR)
  • CORRÊA, Jeferson da Silva
    CEP: 23836-440 Boa Esperança Seropédica/RJ (BR)
  • CUNHA, Mauricio Kuster
    CEP: 29101-010 Praia da Costa Vila Velha/ES (BR)
  • BASTOS, Marlon Christian Marianelli
    CEP: 29175-415 Serra Dourada III Serra ES (BR)
  • FERNANDES, Patricia Machado Bueno
    CEP: 29052-730 Ilha do Boi Vitória/ES (BR)
  • ZORZAL, Poliana Belisário
    CEP: 29160-781 Bairro de Fátima/ES (BR)

(74) Representative: EP&C 
P.O. Box 3241
2280 GE Rijswijk
2280 GE Rijswijk (NL)


(56) References cited: : 
EP-A1- 1 230 456
 US-A- 3 589 364
   
  • O. SIVRIKAYA ET AL: "Pelletization of magnetite ore with colemanite added organic binders", POWDER TECHNOLOGY, vol. 210, no. 1, 18 February 2011 (2011-02-18), pages 23-28, XP055068975, ISSN: 0032-5910, DOI: 10.1016/j.powtec.2011.02.007
   
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).