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1. WO2020205900 - CONDUCTIVE NANOSTRUCTURE PURIFICATION

Publication Number WO/2020/205900
Publication Date 08.10.2020
International Application No. PCT/US2020/026059
International Filing Date 01.04.2020
IPC
B22F 1/00 2006.01
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
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition
B22F 9/24 2006.01
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
16using chemical processes
18with reduction of metal compounds
24starting from liquid metal compounds, e.g. solutions
B01D 21/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
21Separation of suspended solid particles from liquids by sedimentation
CPC
B03D 1/026
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
DFLOTATION; DIFFERENTIAL SEDIMENTATION
1Flotation
02Froth-flotation processes
026Using an immiscible liquid in place of a gas for flotation
B03D 1/1481
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
DFLOTATION; DIFFERENTIAL SEDIMENTATION
1Flotation
14Flotation machines
1481with a plurality of parallel plates
B22F 1/0022
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties
0003Metallic powders per se; Mixtures of metallic powders; Metallic powders mixed with a lubricating or binding agent
0007Metallic powder characterised by its shape or structure, e.g. fibre structure
0011Metallic powder characterised by size or surface area only
0018Nanometer sized particles
0022Dispersions or suspensions thereof
B22F 1/0025
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties
0003Metallic powders per se; Mixtures of metallic powders; Metallic powders mixed with a lubricating or binding agent
0007Metallic powder characterised by its shape or structure, e.g. fibre structure
0011Metallic powder characterised by size or surface area only
0018Nanometer sized particles
0025Nanofibres or nanotubes
B22F 1/0081
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties
0081Special treatment of metallic powder, e.g. to facilitate working, to improve properties
B22F 9/24
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
9Making metallic powder or suspensions thereof
16using chemical processes
18with reduction of metal compounds
24starting from liquid metal compounds, e.g. solutions
Applicants
  • CAMBRIOS FILM SOLUTIONS CORPORATION
  • MOODY, Ian Storms [US]/[US]
Inventors
  • MOODY, Ian Storms
  • ROBILLOS, Samuel Lumahan
  • DAI, Haixia
Agents
  • COOPER, William J.
Priority Data
62/828,65403.04.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CONDUCTIVE NANOSTRUCTURE PURIFICATION
(FR) PURIFICATION DE NANOSTRUCTURES CONDUCTRICES
Abstract
(EN)
A method of purifying a metal nanostructure composition containing desired nanostructures and undesired nanostructures. The method includes providing a solution within which metal nanostructures have been synthesized including desired and undesired nanostructures. The solution includes polyol and has a viscosity. The method includes diluting the solution with a dilutant to lower the viscosity of the solution and provide a diluted solution. The method includes sedimenting the undesired nanostructures from the diluted solution. The method includes collecting the supernatant with the desired nanostructures and retaining the undesired nanostructures inside the sedimentation device. In an example, such is via a sedimentation device, which is a special tray system designed with grooved bottoms to retain the undesired nanostructures.
(FR)
L'invention concerne un procédé de purification d'une composition de nanostructures métalliques contenant des nanostructures souhaitées et des nanostructures non souhaitées. Le procédé consiste à fournir une solution dans laquelle des nanostructures métalliques ont été synthétisées, notamment des nanostructures souhaitées et non souhaitées. La solution comprend du polyol et a une certaine viscosité. Le procédé consiste à diluer la solution à l’aide d’un diluant afin d'abaisser la viscosité de la solution et d'obtenir une solution diluée. Le procédé consiste à sédimenter les nanostructures non souhaitées dans la solution diluée. Le procédé consiste à collecter le surnageant présentant les nanostructures souhaitées et à retenir les nanostructures non souhaitées dans le dispositif de sédimentation. Selon un exemple, l’invention fait intervenir un dispositif de sédimentation, qui est un système de plateau spécial conçu avec des fonds rainurés pour retenir les nanostructures non souhaitées.
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