公开(公告)号：US3734722A

公开(公告)日：1973-05-22

申请号：US3734722D

申请日：1971-06-14

申请人： HERAEUS GMBH W C

发明人： ZIEGLER M

IPC分类号： C01G7/00 ,  C22B3/36 ,  C22B11/00

CPC分类号： C22B3/0036 ,  C01G7/003 ,  Y02P10/234 ,  Y10T436/255

摘要： GOLD IS RECOVERED FROM MINERAL ACID SOLUTION BY FORMING ACOMPLEX WITH TETRAHYDROFURAN, DISSOLVING THE COMPLEX IN AN ORGANIC SOLVET AND RECOVERING THE GOLD.

公开(公告)号：US3787554A

公开(公告)日：1974-01-22

申请号：US3787554D

申请日：1972-08-02

申请人： HERAEUS GMBH W C

发明人： ZIEGLER M

IPC分类号： C01G55/00 ,  C22B3/26 ,  C22B3/28 ,  C22B3/32

CPC分类号： C22B3/0024 ,  C01G55/00 ,  C01G55/001 ,  C22B3/0009 ,  C22B3/001 ,  Y02P10/234

摘要： IRIDIUM IS SEPARATED FROM AQUEOUS MINERAL ACID SOLUTIONS CONTAINING IRIDIUM AND RHODIUM USING AN ORGANICALLY SUBSTITUTED AMMONIUM SALT AND EXTRACTING THE IRIDIUM COMPLEX THAT IS FORMED WITH AN ORGANIC SOLVENT, TRIALKYL AMMONIUM HALIDES ARE USED TO FORM THE IRIDIUM COMPLEX AND ALIPHATIC OR AROMATIC HALOGENATED HYDROCARBON, A CARBOXYLIC ACID ESTER OR A SLIGHTLY WATER-SOLUBLE ALCOHOL ARE USED TO EXTRACT THE IRIDIUM COMPLEX.

公开(公告)号：US3733388A

公开(公告)日：1973-05-15

申请号：US3733388D

申请日：1971-04-27

申请人： HERAEUS GMBH W C

发明人： ZIEGLER M

IPC分类号： B01J41/04 ,  C01G47/00

CPC分类号： B01J41/04 ,  C01G47/00

摘要： METAL IMPURTIES ARE QUANTITATIVELY REMOVED FROM AQUEOUS RHENIUM SOLUTION OR AN AMMONIUM PERRHENATE SOLUTION WITH AN ION EXCHANGE MATERIAL COMPRISING A SUPPORT TO WHICH IS BOUND POLYETHYLENEIMINE AS THE ACTIVE XCHANGE MATERIAL.