公开(公告)号：US07473406B2

公开(公告)日：2009-01-06

申请号：US10448459

申请日：2003-05-30

申请人： Raksh Vir Jasra ,  Pushpito Kumar Ghosh ,  Hari Chand Bajaj ,  Arvindkumar Balvantrai Boricha

发明人： Raksh Vir Jasra ,  Pushpito Kumar Ghosh ,  Hari Chand Bajaj ,  Arvindkumar Balvantrai Boricha

IPC分类号： C01G55/00

CPC分类号： C22B7/007 ,  C22B11/048 ,  Y02P10/214 ,  Y02P10/234

摘要： The present invention relates to an improved process for the recovery of palladium from spent catalyst. The present invention particularly relates to a suitable method of catalyst recovery of precious metals from spent catalysts or inorganic waste and more specifically the process concerns with the recovery of palladium that is anchored on carbon and is used as catalyst for the hydrogenation of nitro aromatics or as a catalyst for many other organic transformations.

摘要翻译： 本发明涉及用于从废催化剂中回收钯的改进方法。 本发明特别涉及从废催化剂或无机废物中回收贵金属的合适方法，更具体地说，该方法涉及回收钯，其被锚定在碳上并用作硝基芳族化合物的氢化催化剂或作为 许多其他有机转化的催化剂。

公开(公告)号：US07108839B2

公开(公告)日：2006-09-19

申请号：US10308170

申请日：2002-12-03

申请人： Arvindkumar Balvantrai Boricha ,  Hari Chand Bajaj ,  Raksh Vir Jasra ,  Pradyut Ghosh ,  Pushipito Kumar Ghosh

发明人： Arvindkumar Balvantrai Boricha ,  Hari Chand Bajaj ,  Raksh Vir Jasra ,  Pradyut Ghosh ,  Pushipito Kumar Ghosh

IPC分类号： C01G55/00

CPC分类号： C22B3/44 ,  C22B11/048 ,  Y02P10/214 ,  Y02P10/234

摘要： The present invention provides a provides a process for the recovery of precious metals from spent catalysts or adsorbent or inorganic waste, more specifically the process relates to recovery of Pd from silica, which is used as an adsorbent in column chromatography or as a catalyst support in many catalysts.

摘要翻译： 本发明提供了一种从废催化剂或吸附剂或无机废物中回收贵金属的方法，更具体地说，该方法涉及从二氧化硅中回收Pd，其用作柱色谱法中的吸附剂或作为催化剂载体 许多催化剂。