公开(公告)号：EP2668136B1

公开(公告)日：2018-04-11

申请号：EP12739986.3

申请日：2012-01-27

申请人： Honeywell International Inc. ,  Werner, Christian ,  Steinberg, Christoph ,  Maurer, Jessica

发明人： WERNER, Christian ,  STEINBERG, Christoph ,  MAURER, Jessica ,  ZUMAQUE, Harry

IPC分类号： C01G19/02 ,  B01D37/02

CPC分类号： C01G19/02 ,  C01P2006/80

摘要： Provided herein are methods for the preparation of high purity stannous oxide comprising: (a) reacting a Sn salt with a C2-12 dicarboxylic acid in the aqueous phase to form a suspension comprising a Sn-dicarboxylate complex; (b) washing the Sn-dicarboxylate complex with water to obtain a wash solution comprising a washed Sn-dicarboxylate complex essentially free of the anion of the Sn salt; and (c) reacting the washed Sn-dicarboxylate complex with a base to form high purity SnO, wherein the high purity SnO has an alpha radiation count of less than about 0.002 cph/cm2.

公开(公告)号：EP2668136A2

公开(公告)日：2013-12-04

申请号：EP12739986.3

申请日：2012-01-27

申请人： Honeywell International, Inc. ,  Werner, Christian ,  Steinberg, Christoph ,  Maurer, Jessica

发明人： WERNER, Christian ,  STEINBERG, Christoph ,  MAURER, Jessica ,  ZUMAQUE, Harry

IPC分类号： C01G19/02 ,  B01D37/02

CPC分类号： C01G19/02 ,  C01P2006/80

摘要： Provided herein are methods for the preparation of high purity stannous oxide comprising: (a) reacting a Sn salt with a C2-12 dicarboxylic acid in the aqueous phase to form a suspension comprising a Sn-dicarboxylate complex; (b) washing the Sn-dicarboxylate complex with water to obtain a wash solution comprising a washed Sn-dicarboxylate complex essentially free of the anion of the Sn salt; and (c) reacting the washed Sn-dicarboxylate complex with a base to form high purity SnO, wherein the high purity SnO has an alpha radiation count of less than about 0.002 cph/cm2.