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BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.
Claims (1)
Patent-Anspruch:Patent claim:Eine Ausführungsform des durch Patent Nr. 77168 geschützten Verfahrens zur Darstellung
von Erdalkalimetallcarbiden, gekennzeichnet durch den Zusatz von fein vertheiltem
Zinn oder Blei oder deren Oxyden zum Reactionsgemisch. An embodiment of the method of illustration protected by Patent No. 77168
of alkaline earth metal carbides, characterized by the addition of finely divided
Tin or lead or their oxides for the reaction mixture.
Process for pickling alloy steels, copper, non-ferrous metal alloys, special alloys, titanium, zirconium, tantalum etc. by means of nitric-acid pickling baths