摘要 |
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. |
申请人 |
BASTOS, MARLON;CUNHA, MAURICIO;REIS, JOSE;ALBUQUERQUE, ERICA;CORREA, JEFERSON;FERNANDES, PATRICIA;UNIVERSIDADE FEDERAL DO ESPIRITO SANTO;DE JESUS, REINALDO;STEGMILLER, LEONIDIO;FERNANDES, ANTONIO;ZORZAL, POLIANA;COSTA, LILIANE;VALE S.A. |
发明人 |
STEGMILLER, LEONIDIO;REIS, JOSE ANTONINO ALVES E SILVA;DE JESUS, REINALDO WALMIR;COSTA, LILIANE DURANS DE MORAES;FERNANDES, ANTONIO ALBERTO RIBEIRO;ALBUQUERQUE, ERICA DUTRA;CORREA, JEFERSON DA SILVA;CUNHA, MAURICIO KUSTER;BASTOS, MARLON CHRISTIAN MARIANELLI;FERNANDES, PATRICIA MACHADO BUENO;ZORZAL, POLIANA BELISARIO |