METHOD AND SYSTEM FOR CLEANING AND SEPARATING MAGNETIC NANOPARTICLES

WIPO Patent Application WO/2022/114162

A1

Provided is a method for cleaning and separating magnetic nanoparticles, with which the time required to manufacture magnetic nanoparticles is reduced.　This method for cleaning and separating magnetic nanoparticles comprises the steps of: cleaning magnetic nanoparticles in a treatment device 47, this being a step in which a cleaning liquid is introduced into a treatment device containing the magnetic nanoparticles; stirring a mixture of the introduced cleaning liquid and the magnetic nanoparticles; performing a sedimentation treatment on the mixture, which has been placed in a magnetic field; and pouring a supernatant liquid obtained by the sedimentation treatment out from the treatment device. The step of introducing the cleaning liquid and the stirring step are performed multiple times, the step of performing the sedimentation treatment and the step of pouring out the supernatant liquid are not performed after the final stirring step, and said method further comprises an accumulation step of causing the mixture derived from the treatment device to flow to part of a flow path of a separation device 20 and causing the magnetic nanoparticles contained in the mixture to accumulate in a flow channel placed in a magnetic field.

WATANABE HISAO (JP)
ISHIZUKA AKINORI (JP)
YAMAUCHI TOMOHISA (JP)
UEMURA KAZUSHI (JP)
KOBAYASHI TATSUYA (JP)
IMAI MASAHIRO (JP)
TSUKAHARA YASUNORI (JP)

PCT/JP2021/043523

June 02, 2022

November 29, 2021

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MICROWAVE CHEMICAL CO LTD (JP)

B03C1/28; B03B5/28; B03C1/00

WO2020226497A1

2020-11-12

US20140109933A1	2014-04-24
JP2018072072A	2018-05-10
JP2016536132A	2016-11-24
JP2014018751A	2014-02-03

SAEGUSA & PARTNERS (JP)

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