Title:
PROCESS FOR OBTAINING CARBOXYMETHYL CELLULOSE FROM AGRO-INDUSTRIAL RESIDUES AND CARBOXYMETHYL CELLULOSE AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2013/166575
Kind Code:
A9
Abstract:
The present invention describes an advantageous and effective process for obtaining carboxymethyl cellulose (CMC) from agro-industrial residues, comprising the steps of a) Preparing the raw material, wherein the raw material is washed, dried, grounded and washed again; b) a pumping step, wherein the product obtained from the step a) is reacted with sodium hydroxide; c) a synthesis step, wherein consists in grounding the pulp; adding a solution of isopropanol and distilled water under stirring at room temperature; adding NaOH aqueous solution up to the alkalization of the mixture; adding monochloroacetic acid in isopropanol; filtrating; suspending in methanol solution and neutralizing with acetic acid. The present invention also relates to the CMC obtained from the said process which can be employed in a several industrial processes.
Inventors:
STEGMILLER LEONIDIO (BR)
REIS JOSE ANTONINO ALVES E SILVA (BR)
DE JESUS REINALDO WALMIR (BR)
COSTA LILIANE DURANS DE MORAES (BR)
FERNANDES ANTONIO ALBERTO RIBEIRO (BR)
ALBUQUERQUE ERICA DUTRA (BR)
CORR A JEFERSON DA SILVA (BR)
CUNHA MAURICIO KUSTER (BR)
BASTOS MARLON CHRISTIAN MARIANELLI (BR)
FERNANDES PATRICIA MACHADO BUENO (BR)
ZORZAL POLIANA BELISÁRIO (BR)
REIS JOSE ANTONINO ALVES E SILVA (BR)
DE JESUS REINALDO WALMIR (BR)
COSTA LILIANE DURANS DE MORAES (BR)
FERNANDES ANTONIO ALBERTO RIBEIRO (BR)
ALBUQUERQUE ERICA DUTRA (BR)
CORR A JEFERSON DA SILVA (BR)
CUNHA MAURICIO KUSTER (BR)
BASTOS MARLON CHRISTIAN MARIANELLI (BR)
FERNANDES PATRICIA MACHADO BUENO (BR)
ZORZAL POLIANA BELISÁRIO (BR)
Application Number:
PCT/BR2013/000159
Publication Date:
July 03, 2014
Filing Date:
May 09, 2013
Export Citation:
Assignee:
VALE SA (BR)
UNIV FED DO ESPÍRITO SANTO (BR)
STEGMILLER LEONIDIO (BR)
REIS JOSE ANTONINO ALVES E SILVA (BR)
DE JESUS REINALDO WALMIR (BR)
COSTA LILIANE DURANS DE MORAES (BR)
FERNANDES ANTONIO ALBERTO RIBEIRO (BR)
ALBUQUERQUE ERICA DUTRA (BR)
CORR A JEFERSON DA SILVA (BR)
CUNHA MAURICIO KUSTER (BR)
BASTOS MARLON CHRISTIAN MARIANELLI (BR)
FERNANDES PATRICIA MACHADO BUENO (BR)
ZORZAL POLIANA BELISÁRIO (BR)
UNIV FED DO ESPÍRITO SANTO (BR)
STEGMILLER LEONIDIO (BR)
REIS JOSE ANTONINO ALVES E SILVA (BR)
DE JESUS REINALDO WALMIR (BR)
COSTA LILIANE DURANS DE MORAES (BR)
FERNANDES ANTONIO ALBERTO RIBEIRO (BR)
ALBUQUERQUE ERICA DUTRA (BR)
CORR A JEFERSON DA SILVA (BR)
CUNHA MAURICIO KUSTER (BR)
BASTOS MARLON CHRISTIAN MARIANELLI (BR)
FERNANDES PATRICIA MACHADO BUENO (BR)
ZORZAL POLIANA BELISÁRIO (BR)
International Classes:
C08B11/12; A23L29/20; C22B1/24; C22B1/244
Attorney, Agent or Firm:
VEIRANO E ADVOGADOS ASSOCIADOS (3477 16° andar,Itaim Bibi, CEP: -133 São Paulo, BR)
Download PDF: