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

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...

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Hauptverfasser: REIS, JOSE ANTONINO ALVES E SILVA, CORRÊA, JEFERSON DA SILVA, DE JESUS, REINALDO WALMIR, BASTOS, MARLON CHRISTIAN MARIANELLI, ZORZAL, POLIANA BELISÁRIO, STEGMILLER, LEONIDIO, CUNHA, MAURICIO KUSTER, FERNANDES, ANTONIO ALBERTO RIBEIRO, COSTA, LILIANE DURANS DE MORAES, FERNANDES, PATRICIA MACHADO BUENO, ALBUQUERQUE, ERICA DUTRA
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung: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 CMC obtained from the process can be employed in a several industrial processes.