Title:
鉄イオンをアルミニウムイオンから分離する方法
Document Type and Number:
Japanese Patent JP2014523491
Kind Code:
A
Abstract:
There are provided methods for separating iron ions from aluminum ions contained in an acidic composition. The methods comprise reacting the acidic composition with a basic aqueous composition having a pH of at least 10.5 so as to obtain a precipitation composition, maintaining the precipitation composition at a pH above 10.5 so as to cause precipitation of the iron ions, at least substantially preventing precipitation of the aluminum ions, and to obtain a mixture comprising a liquid portion and a solid portion; and separating the liquid portion from the solid portion. There are also provided methods for treating an acidic composition comprising iron ions and aluminum ions. Such methods can be useful for preparing products such as alumina, aluminum, hematite etc.
Inventors:
Richard Boudreau
Joel Fournier
Lorry ゴティ yell
Joel Fournier
Lorry ゴティ yell
Application Number:
JP2014520473A
Publication Date:
September 11, 2014
Filing Date:
July 18, 2012
Export Citation:
Assignee:
Oba Ito Alumina In condominium lei テッド ORBITE ALUMINAE INC.
International Classes:
C22B21/06; C22B3/44
Domestic Patent References:
| JP2013076112A | 2013-04-25 | |||
| JP2010529289A | 2010-08-26 |
Attorney, Agent or Firm:
Kenji Sugimura
Kazuyuki Tomita
Ikeda 浩
Kazuyuki Tomita
Ikeda 浩