|
GB862688A
|
|
A process for separating ions by ion-exchange
|
|
GB886179A
|
|
Improvements in and relating to the separation of rare earths
|
|
DE1077199B
|
|
Process for the separation of rare earths by fractionated precipitation of their hydroxides or basic salts
|
|
DE1112724B
|
|
Process for the separation of rare earths and yttrium
|
|
US3054655A
|
|
Process for separating rare earths and yttrium by ion exchange
|
|
US3112990A
|
|
Process for separating cerium from trivalent rare earths
|
|
US3037841A
|
|
Process for separating ions by ion exchange
|
