公开(公告)号：US07273943B2

公开(公告)日：2007-09-25

申请号：US11509157

申请日：2006-08-24

申请人： Knud Reuter ,  Friedrich Zell ,  Martina Ebner

发明人： Knud Reuter ,  Friedrich Zell ,  Martina Ebner

IPC分类号： C07F7/28 ,  C07F9/00 ,  C01B25/00

CPC分类号： C07C29/88 ,  C07C29/80 ,  C07C29/94 ,  C07F7/003 ,  C07F9/005 ,  C07C31/28

摘要： A novel process for the preparation of high-purity zirconium, hafnium, tantalum and niobium alkoxides (alcoholates), novel tantalum and niobium compounds and a process for their preparation are provided. The process comprises the steps of mixing crude metal alkoxides M(OR)x having a halogen impurity of at least 0.05 wt. %, with an alcohol ROH, in which R is a C1-C12-alkyl radical, and subsequently or simultaneously metering in an excess of ammonia, based on the amount of mononuclear or polynuclear halogen-containing metal alkoxides.

摘要翻译： 提供了制备高纯度锆，铪，钽和铌醇盐（醇化物），新型钽和铌化合物的新方法及其制备方法。 该方法包括以下步骤：将具有至少0.05重量％的卤素杂质的粗金属醇盐M（OR） ％，与醇ROH，其中R是C 1 -C 12 - 烷基，并且随后或同时在过量的氨中计量，基于量 的单核或多核含卤素的金属醇盐。

公开(公告)号：US06548685B2

公开(公告)日：2003-04-15

申请号：US10098639

申请日：2002-03-15

申请人： Friedrich Zell

发明人： Friedrich Zell

IPC分类号： C07F900

CPC分类号： C23C16/34 ,  C07C29/70 ,  C23C16/405 ,  C07C31/28

摘要： The invention relates to a process for preparing niobium(V) alkoxides and tantalum(V) alkoxides, in particular niobium(V) ethoxide and tantalum(V) ethoxide, by reacting NbCl5 or TaCl5 with an appropriate alcohol in the presence of ammonia, wherein NbCl5 or TaCl5 is dissolved at a temperature of from about 0° C. to −50° C. in the alcohol containing from about 5 to about 7 mol of ammonia per mol of NbCl5 or TaCl5 to be reacted.

公开(公告)号：US20070056468A1

公开(公告)日：2007-03-15

申请号：US11509157

申请日：2006-08-24

申请人： Knud Reuter ,  Friedrich Zell ,  Martina Ebner

发明人： Knud Reuter ,  Friedrich Zell ,  Martina Ebner

IPC分类号： C01B25/00 ,  C07F7/28 ,  C07F9/00

CPC分类号： C07C29/88 ,  C07C29/80 ,  C07C29/94 ,  C07F7/003 ,  C07F9/005 ,  C07C31/28

摘要： A novel process for the preparation of high-purity zirconium, hafnium, tantalum and niobium alkoxides (alcoholates), novel tantalum and niobium compounds and a process for their preparation are provided. The process comprises the steps of mixing crude metal alkoxides M(OR)x having a halogen impurity of at least 0.05 wt. %, with an alcohol ROH, in which R is a C1-C12-alkyl radical, and subsequently or simultaneously metering in an excess of ammonia, based on the amount of mononuclear or polynuclear halogen-containing metal alkoxides.