Invention Grant
- Patent Title: Method for effluent treatment in smelting of nickel oxide ore
- Patent Title (中): 氧化镍矿冶炼废水处理方法
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Application No.: US14419543Application Date: 2013-06-17
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Publication No.: US09561972B2Publication Date: 2017-02-07
- Inventor: Yasuo Yoshii , Keisuke Shibayama , Yoji Kyoda , Yoshitomo Ozaki , Osamu Nakai , Hiroyuki Mitsui
- Applicant: SUMITOMO METAL MINING CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: SUMITOMO METAL MINING CO., LTD.
- Current Assignee: SUMITOMO METAL MINING CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2012-179413 20120813
- International Application: PCT/JP2013/066589 WO 20130617
- International Announcement: WO2014/027503 WO 20140220
- Main IPC: C02F1/52
- IPC: C02F1/52 ; C02F1/44 ; C02F103/16 ; C02F101/10
Abstract:
The present invention aims at providing a method for effluent treatment, which enables the separation and recovery of a high-density and high-concentration aluminum sediment from waste water that is discharged in the smelting of a nickel oxide ore and contains aluminum ions. In the present invention, an alkali and an iron-containing solid are added to waste water containing aluminum ions to form a slurry, and the slurry is allowed to stand to perform solid-liquid separation, whereby an aluminum sediment and an effluent is formed.
Public/Granted literature
- US20150225269A1 METHOD FOR EFFLUENT TREATMENT IN SMELTING OF NICKEL OXIDE ORE Public/Granted day:2015-08-13
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