Title:
A preparing method of high dispersibility nano material
Document Type and Number:
Japanese Patent JP6051427
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method capable of obtaining easily at high yield, a nanomaterial excellent not only in liquid-phase dispersibility but also in gas-phase dispersibility.SOLUTION: A method for preparing a highly-dispersible nanomaterial has a suspension step, for mixing and suspending bulk powder into a solvent, a filtration step for filtering a suspension liquid obtained in the suspension step, a freezing step for freezing a filtrate obtained in the filtration step to be solidified immediately and quickly, and a vacuum drying step for subliming the solvent to be removed by vacuum drying from a frozen solidified product obtained in the freezing step. A highly-dispersible nanomaterial can be obtained easily at high yield both in a liquid phase and in a gas phase, especially by following operations: an individual solvent is used at room temperature and normal pressure; mixing is performed in a sherbet-like state at a temperature lower than a melting point of the solvent in the suspension step; the suspension liquid is once frozen and then re-melted before the filtration step, and the like.
Inventors:
Jun Kanno
Takahashi Yuji
Takahashi Yuji
Application Number:
JP2012158343A
Publication Date:
December 27, 2016
Filing Date:
July 17, 2012
Export Citation:
Assignee:
Human Science Foundation
International Classes:
C01B31/02; B01F3/18; B22F1/00; B82Y40/00; C01B33/18; C01F7/02; C01F17/00; C01G9/02; C01G23/04; C09C1/48; F26B5/06
Domestic Patent References:
| JP2009519812A | ||||
| JP2011126727A | ||||
| JP2008024524A | ||||
| JP2010092590A | ||||
| JP2008288658A | ||||
| JP2002506906A | ||||
| JP2005213108A | ||||
| JP2002129065A |
Attorney, Agent or Firm:
Maeda patent office
Atsushi Nogami
Atsushi Nogami
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