Title:
FINE-PARTICLE POWDER CONTAINING CALCIUM OXIDE OR CALCIUM HYDROXIDE AND PRODUCTION METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2022/153691
Kind Code:
A1
Abstract:
Provided is a production method for a fine-particle powder containing a calcium oxide or calcium hydroxide, the method including: a step for preparing a pulverized powder of shells or eggshells; a step in which the pulverized powder of shells or eggshells is introduced into a controlled atmosphere, evaporated by thermal plasma, and then coagulated in a gas phase to generate fine particles containing a calcium oxide or calcium hydroxide; and a step for collecting a fine-particle powder containing a calcium oxide or calcium hydroxide processed by thermal plasma.
Inventors:
NAGAI HISAO
MARUYAMA HIROKI
KOIWASAKI TAKESHI
OKUMA TAKAFUMI
MARUYAMA HIROKI
KOIWASAKI TAKESHI
OKUMA TAKAFUMI
Application Number:
PCT/JP2021/043607
Publication Date:
July 21, 2022
Filing Date:
November 29, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
C01F11/04; C08K3/22; C08L101/00
Foreign References:
| US5851507A | 1998-12-22 | |||
| JPH0226810A | 1990-01-29 | |||
| JP2019214633A | 2019-12-19 | |||
| JP2017193617A | 2017-10-26 | |||
| CN111019783A | 2020-04-17 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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