专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

2. 发明申请

WO2007066143A2 REMOVAL OF CONTAMINANTS FROM A BAYER LIQUOR 审中-公开
标题翻译：从拜耳液体中去除污染物
公开(公告)号：WO2007066143A2
公开(公告)日：2007-06-14
申请号：PCT/GB2006050410
申请日：2006-11-23
申请人： ACCENTUS PLC , HIPKISS DAVID
发明人： HIPKISS DAVID
IPC分类号： C01F7/47 , B01J19/10
CPC分类号： C01F7/473 , B01D9/0013 , B01D9/0036 , B01D9/005 , B01J19/10 , B01J19/1862 , B01J2219/00006 , B01J2219/0871 , B01J2219/0877 , C01F7/47
摘要： The Bayer process uses hot sodium hydroxide solution to obtain pure alumina from bauxite ore. Alumina dissolves, and is then precipitated, and the remaining caustic Bayer liquor can be recycled for use again. However contaminants, particularly sodium salts of organic material, tend to build up in the recycled liquor, and causes problems. Such contaminants can be destroyed using a liquor burner (30). The operation of such a liquor burner (30) can be improved by treating (12, 14) the stream of liquor so as to be supersaturated with contaminants, then subjecting it to ultrasonic irradiation (32), and separating (28) resultant crystals from the liquor fed to the burner (30). This process is enhanced if the liquor is allowed to stand (20, 22) for a significant time after the ultrasonic irradiation, is then cooled (24), and is then again allowed to stand (26) for a significant time before the crystals are separated (28).
摘要翻译：拜耳法利用热氢氧化钠溶液从铝土矿矿石中获得纯氧化铝。氧化铝溶解，然后沉淀，剩余的苛性拜耳液可再循环使用。然而，污染物，特别是有机材料的钠盐倾向于在再循环液中积聚，并引起问题。这种污染物可以使用液体燃烧器（30）破坏。这种液体燃烧器（30）的操作可以通过处理（12,14）液体流以使其与污染物过饱和，然后进行超声波照射（32）并将所得晶体从送到燃烧器（30）的液体。如果液体在超声波照射后允许静置（20,22）持续显着时间，然后冷却（24），然后再次使其静置（26）一段相当长的时间，晶体是分开（28）。

IPRDB

热门服务

关于我们

友情链接

联系方式