Title:
水酸化マグネシウムの製造システム
Document Type and Number:
Japanese Patent JP7445432
Kind Code:
B2
Abstract:
Disclosed is a system for producing magnesium hydroxide including: a generation unit; and a recovery unit connected to the generation unit, wherein the generation unit has a reaction tank in which a calcium hydroxide slurry is added to water to be treated containing magnesium ions to crystallize magnesium hydroxide and to obtain a reaction slurry containing particles of magnesium hydroxide, and a sedimentation tank in which the reaction slurry is reserved to sediment the particles and to separate the reaction slurry into a separation slurry containing the particles at a high concentration and a separation liquid containing the particles at a low concentration, and wherein, in the recovery unit, an alkaline aqueous solution is added to the separation liquid to crystallize magnesium hydroxide and to obtain the reaction slurry and then the reaction slurry is reserved to sediment the particles and to recover the sedimented particles.
Inventors:
Kazuhisa Takeuchi
Yoshiaki Ito
Uedo Ryu
Shinpei Kaneda
Masashi Kiyosawa
Yoshiaki Ito
Uedo Ryu
Shinpei Kaneda
Masashi Kiyosawa
Application Number:
JP2020001482A
Publication Date:
March 07, 2024
Filing Date:
January 08, 2020
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
C01F5/22; B01D19/00; C02F1/20; C02F1/58
Domestic Patent References:
| JP4164809A | ||||
| JP2004345912A | ||||
| JP2011073951A |
Other References:
窯業協会誌,1952年,Vol.06,No.676,p429-435
日本海水学会誌,1997年,第51巻、第6号,p348-357
日本塩学会誌,1951年,第5巻、第1号,p26-37
日本海水学会誌,1997年,第51巻、第6号,p348-357
日本塩学会誌,1951年,第5巻、第1号,p26-37
Attorney, Agent or Firm:
Yasushi Matsunuma
Eisuke Ito
Hiroyuki Hashimoto
Ancient city Satoshi
Koichiro Kamada
Eisuke Ito
Hiroyuki Hashimoto
Ancient city Satoshi
Koichiro Kamada