Removal of binder from Ta products

Details Removal of binder from Ta products Removal of binder from Ta products

1994-07-01

1995-11-28

Walsh, Donald P.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Powder pretreatment

419 37, 419 39, 419 44, B22F 100

Patent

active

054705258

ABSTRACT:
Tantalum anode pellets or tantalum powders are treated to remove carbon content (mostly attributable to binders used in pressing the powders to pellet form and/or sintering of the pellets) by an aqueous leach at 50.degree.-200.degree. F. in lieu of the conventional complex distillation/decomposition methods.

REFERENCES:
patent: 5059388 (1991-10-01), Kihara et al.
patent: 5082491 (1992-01-01), Rerat

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