Fremgangsmåde til opnåelse af carboxymethylcellulose ud fra agroindustrielle rester og carboxymethylcellulose og anvendelse deraf

• Main Authors: BASTOS, Marlon Christian Marianelli, CORRÊA, Jeferson da Silva, REIS, Jose Antonino Alves e Silva, FERNANDES, Antonio Alberto Ribeiro, FERNANDES, Patricia Machado Bueno, COSTA, Liliane Durans de Moraes, ZORZAL, Poliana Belisário, STEGMILLER, Leonidio, CUNHA, Mauricio Kuster, DE JESUS, Reinaldo Walmir, ALBUQUERQUE, Erica Dutra
• Format: Patent
• Language: Danish
• Published: 17.12.2018
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; DERIVATIVES THEREOF; FERROUS OR NON-FERROUS ALLOYS; FOODS OR FOODSTUFFS; FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J; HUMAN NECESSITIES; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; POLYSACCHARIDES; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES; TREATMENT OF ALLOYS OR NON-FERROUS METALS

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.