EP 0082210 B1 19850410 - METHOD OF SELECTIVELY DISSOLVING MOLYBDENUM IN THE PRESENCE OF TUNGSTEN
Title (en)
METHOD OF SELECTIVELY DISSOLVING MOLYBDENUM IN THE PRESENCE OF TUNGSTEN
Publication
Application
Priority
EP 81110588 A 19811218
Abstract (en)
[origin: EP0082210A1] 1. A process for selectively dissolving molybdenum in the presence of tungsten, particularly for selectively dissolving the tungsten core-wire from tungsten spirals manufactured on a molybdenum core-wire, with an acid solution of 1 or more compound(s) having oxygen in peroxide-oxygen bond, characterized in that one carries out the dissolving with an acid solution which does not contain nitric acid in the presence of 1 or more compound(s) of 1 or more of the elements iron, copper, thallium, silver, lead, chromium, nickel, bismuth, tellurium, cerium, titanium, vanadium, manganese and cadmium as a catalyst(s) which selectively accelerates (accelerate) the dissolving of the molybdenum.
IPC 1-7
IPC 8 full level
C23F 1/26 (2006.01)
CPC (source: EP)
C23F 1/26 (2013.01)
Designated contracting state (EPC)
AT CH DE FR GB LI NL SE
DOCDB simple family (publication)
EP 0082210 A1 19830629; EP 0082210 B1 19850410; AT E12661 T1 19850415; DE 3169917 D1 19850515
DOCDB simple family (application)
EP 81110588 A 19811218; AT 81110588 T 19811218; DE 3169917 T 19811218