基本信息:
- 专利标题： METHODS TO IMPROVE FILTRATION FOR THE BAYER PROCESS
- 申请号：EP13852058.0 申请日：2013-10-18
- 公开(公告)号：EP2911764B1 公开(公告)日：2018-11-28
- 发明人： CHESTER, Ryan , WANG, Jing , KILDEA, John D.
- 申请人： Nalco Company
- 申请人地址： 1601 West Diehl Road Naperville, IL 60563 US
- 专利权人： Nalco Company
- 当前专利权人： Nalco Company
- 当前专利权人地址： 1601 West Diehl Road Naperville, IL 60563 US
- 代理机构： Godemeyer Blum Lenze Patentanwälte Partnerschaft mbB - werkpatent
- 优先权： US201213662964 20121029
- 国际公布： WO2014070487 20140508
- 主分类号： B01D37/04
- IPC分类号： B01D37/04 ; B01D37/03 ; B01D37/00 ; C01F7/02 ; C01F7/04 ; C01F7/06 ; C01F7/14
摘要：
The invention provides methods and compositions for improving the production of alumina trihydrate. The invention involves adding one or more cross-linked polysaccharides to a filter used to separate solids from liquid in the Bayer process. The one or more polysaccharides can be a cross-linked polysaccharide (such as cross-linked dextran or cross-linked dihydroxypropyl cellulose). The cross-linked polysaccharides can impart a number of advantages including greater flow rate and lower residual moisture in the resulting cake.
公开/授权文献:
- EP2911764A1 METHODS TO IMPROVE FILTRATION FOR THE BAYER PROCESS 公开/授权日：2015-09-02