DEVELOPMENT OF COMBINED METHODS OF METALS (Ga, Cd, Zn, Te, Pb, In at al) DEEP REFINEMENT BY MEANS OF DISTALLATION AND CRYSTALLIZATION
ÈÔÒÒÌÒ ÍÍÖ ÕÔÒÈ
Element
|
Purification method
|
Purity,
mass. %
|
Ga
|
VHT+D
|
99,99999
|
Cd
|
VHT+DF+LEC
|
>99,9999
|
Zn
|
VHT+DF+LEC
|
99,99998
|
Te
|
VHT+DF+LEC
|
>99, 99995
|
Pb
|
VHT+D
|
>99, 99995
|
In
|
VHT+D
|
>99, 9999
|
Purity attained
(D - distillation, DF - distillation via filter, VHT - vacuum heat treatment, LEC - liquid encapsulated Czochralski method crystallization)
Cd
Zn
Te
Pb
