Title:
バナジン酸塩の製造方法
Document Type and Number:
Japanese Patent JP7117325
Kind Code:
B2
Abstract:
A method for producing a vanadate extracts a vanadium component included in combustion fly ash or clinker. In the method, a vanadium component is recovered as a vanadate from combustion fly ash or clinker, the method including the following steps 1 to 5: (1) a step of adding an aqueous sodium hydroxide solution to combustion fly ash or clinker so that the water content is 5 to 35% by mass (step 1); (2) a step of mixing or kneading (step 2); (3) a step of heating the mixed or kneaded mixture (step 3); (4) a step of adding water to the mixture that has undergone the heating step in the step 3 to form a slurry (step 4); and (5) a step of recovering a vanadate in the aqueous phase after the solid-liquid separation of the slurry (step 5).
Inventors:
Junichi Akiyama
Keiichi Nakamura
Keiichi Nakamura
Application Number:
JP2019558114A
Publication Date:
August 12, 2022
Filing Date:
November 20, 2018
Export Citation:
Assignee:
SHOWA DENKO K.K.
International Classes:
C22B34/22; B09B3/70; B09B5/00; C01G31/00; C22B3/12; C22B7/02
Domestic Patent References:
| JP53040610A |
Foreign References:
| CN102127655A |
Other References:
六川 暢了,重油専焼火力発電所ボイラスラグからのバナジウムの回収,資源・素材学会誌,107巻, 5号,日本,1991年,295-299頁,http://www.jstage.jst.go.jp/article/shigentosozai1989/107/5/107_5_295/_pdf/-char/ja
Attorney, Agent or Firm:
Patent corporation ssinpat