公开(公告)号：US5356850A

公开(公告)日：1994-10-18

申请号：US961809

申请日：1992-10-16

申请人： Yves Correia ,  Dominique Jourdain ,  Joseph Nowocien ,  Alexandre Salerno

发明人： Yves Correia ,  Dominique Jourdain ,  Joseph Nowocien ,  Alexandre Salerno

IPC分类号： B01J23/40 ,  B01J23/44 ,  B01J35/00 ,  B01J37/04 ,  C07B61/00 ,  C07C51/377 ,  C07C51/487 ,  C07C53/04 ,  C07C53/15 ,  C07C53/16 ,  B01J21/18 ,  B01J21/06 ,  B01J23/41

CPC分类号： C07C51/377 ,  B01J23/44 ,  B01J35/00 ,  B01J37/04 ,  Y02P20/584

摘要： The invention relates to a catalyst comprising a rare metal of Group VIII of the Periodic Table of Elements which has been deposited on an inert support and which has been used to dehalogenate .alpha.-halogenated carboxylic acids in the presence of hydrogen, and a rare metal of Group VIII of the Periodic Table of Elements which has been deposited on an inert support and which is such that the granulometry of b) is very much lower than that of a) to form a homogeneous mixture as a result of the action of currents of .alpha.-halogenated carboxylic acid and hydrogen.It is particularly useful for regenerating palladium catalysts used in the purification of crude monochloroacetic acid.

摘要翻译： 本发明涉及一种催化剂，其包含元素周期表第VIII族的稀有金属，其已经沉积在惰性载体上并已用于在氢气存在下使α-卤代羧酸脱卤，以及稀有金属 已经沉积在惰性载体上的元素周期表第VIII族，其使得b）的粒度非常低于a），由于α的电流的作用而形成均匀的混合物 - 卤代羧酸和氢。 对用于纯化一氯乙酸粗品的钯催化剂的再生特别有用。

公开(公告)号：US5475135A

公开(公告)日：1995-12-12

申请号：US264878

申请日：1994-06-24

申请人： Yves Correia ,  Dominique Jourdain ,  Joseph Nowocien ,  Alexandre Salerno

发明人： Yves Correia ,  Dominique Jourdain ,  Joseph Nowocien ,  Alexandre Salerno

IPC分类号： B01J23/40 ,  B01J23/44 ,  B01J35/00 ,  B01J37/04 ,  C07B61/00 ,  C07C51/377 ,  C07C51/487 ,  C07C53/04 ,  C07C53/15 ,  C07C53/16

CPC分类号： C07C51/377 ,  B01J23/44 ,  B01J35/00 ,  B01J37/04 ,  Y02P20/584

摘要： The invention relates to a catalyst comprising a rare metal of Group VIII of the Periodic Table of Elements which has been deposited on an inert support and which has been used to dehalogenate .alpha.-halogenated carboxylic acids in the presence of hydrogen, and a rare metal of Group VIII of the Periodic Table of Elements which has been deposited on an inert support and which is such that the granulometry of b) is very much lower than that of a) to form a homogeneous mixture as a result of the action of currents of .alpha.-halogenated carboxylic acid and hydrogen wherein said invention is particularly useful for regenerating palladium catalyst used in the purification of crude monochloroacetic acid.

摘要翻译： 本发明涉及一种催化剂，其包含元素周期表第VIII族的稀有金属，其已经沉积在惰性载体上并已用于在氢气存在下使α-卤代羧酸脱卤，以及稀有金属 已经沉积在惰性载体上的元素周期表第VIII族，其使得b）的粒度非常低于a），由于α的电流的作用而形成均匀的混合物 - 卤代羧酸和氢，其中所述发明特别可用于再生用于纯化一氯乙酸的钯催化剂。