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公开(公告)号:US07247292B2
公开(公告)日:2007-07-24
申请号:US10380048
申请日:2002-06-21
CPC分类号: C08K3/22 , C01F7/02 , C01F7/023 , C01P2004/50 , C01P2004/61 , C01P2006/12 , C08K2003/2227 , C09C1/407
摘要: A method for producing aluminum hydroxide includes a step of elevating a temperature of a slurry of aluminum hydroxide suspended in a sodium aluminate solution from 70° C. or lower to 85° C. or higher, and a step of applying a centrifugal force to the slurry. The aluminum hydroxide constituting the slurry is obtained beforehand through the Bayer's process.
摘要翻译: 一种生产氢氧化铝的方法包括将悬浮在铝酸钠溶液中的氢氧化铝的浆料的温度从70℃或更低提升到85℃或更高的步骤,以及将离心力施加到 泥浆。 构成浆料的氢氧化铝通过拜耳的方法预先获得。
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公开(公告)号:US07101529B2
公开(公告)日:2006-09-05
申请号:US10363921
申请日:2002-06-21
IPC分类号: C01F7/02
CPC分类号: C01F7/023 , C01F7/02 , C01P2004/50 , C01P2004/61 , C01P2006/12 , C08K3/22 , C08K2003/2227 , C09C1/407
摘要: A method for producing aluminum hydroxide, comprises the steps of: elevating a temperature of a slurry having agglomerated secondary particles of aluminum hydroxide obtained through the Bayer's process suspended in a sodium aluminate solution from not more than 70° C. to not less than 85° C. within 15 minutes, thereby disintegrating the agglomerated secondary particles; and retaining, for a period of at least 15 minutes from temperature elevation, the temperature of the slurry so as not to be lowered to not less than 80° C.
摘要翻译: 一种生产氢氧化铝的方法,包括以下步骤:将悬浮在铝酸钠溶液中的通过拜耳法处理的氢氧化铝的附聚二次粒子的浆料的温度从不高于70℃提升到不低于85℃ 在15分钟内,从而使附聚的二次粒子分解; 并保持从升温至少15分钟的时间,将浆料的温度保持不低于80℃。
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