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1. ES2809349 - PROCEDIMIENTO PARA OBTENCION DE NANOPARTICULAS DE HIERRO CEROVALENTE

Office
Spain
Application Number 202030780
Application Date 27.07.2020
Publication Number 2809349
Publication Date 03.03.2021
Grant Number
Grant Date 06.07.2021
Publication Kind B2
IPC
B01J 13/04
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
13Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
02Making microcapsules or microballoons
04by physical processes, e.g. drying, spraying
B82Y 40/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE  OR TREATMENT OF NANOSTRUCTURES
40Manufacture or treatment of nanostructures
B22F 9/02
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
9Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor
02using physical processes
B82B 3/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
BNANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS, MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES AS DISCRETE UNITS; MANUFACTURE OR TREATMENT THEREOF
3Manufacture or treatment of nanostructures by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units
CPC
C01P 2004/32
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2004Particle morphology
30extending in three dimensions
32Spheres
C01P 2004/64
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2004Particle morphology
60Particles characterised by their size
64Nanometer sized, i.e. from 1-100 nanometer
B22F 1/14
B22F 1/054
Applicants Universitat d'Alacant / Universidad de Alicante
Inventors FULLANA FONT Andrés
CALDERON ROCA Blanca
Title
(ES) PROCEDIMIENTO PARA OBTENCION DE NANOPARTICULAS DE HIERRO CEROVALENTE
Abstract
(EN) Procedure for obtaining zerovalent iron nanoparticles. The present invention refers to a process that makes it possible to obtain graphitized zero valence iron nanoparticles from agricultural residues. It is a low-cost process that does not generate waste since it allows the use of all the products and by-products obtained. The procedure comprises the following stages: a) conditioning the agricultural residue by grinding it, mixing it with water and subsequent ultrafiltration, b) hydrothermal carbonization of the permeate obtained in step a) in the presence of an iron salt, c) graphitization in the gas phase of the iron nanoparticles coated with amorphous carbon obtained in the previous step and isolation of the graphitized particles obtained. (Machine-translation by Google Translate, not legally binding)
(ES) Procedimiento para obtención de nanopartículas de hierro cerovalente. La presente invención se refiere a un procedimiento que permite obtener nanopartículas de hierro de valencia cero grafitizadas a partir de residuos agrícolas. Se trata de un proceso de bajo coste que no genera residuos ya que permite el aprovechamiento de todos los productos y subproductos obtenidos. El procedimiento comprende las siguientes etapas: a) acondicionamiento del residuo agrícola mediante su trituración, mezclado con agua y subsiguiente ultrafiltración, b) carbonización hidrotermal del permeado obtenido en la etapa a) en presencia de una sal de hierro, c) grafitización en fase gaseosa de las nanopartículas de hierro recubiertas con carbón amorfo obtenidas en la etapa anterior y aislamiento de las partículas grafitizadas obtenidas.
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