Skeletal catalyst continuous prodn from catalyst-metal alloy - by alkaline liquor leaching of metal from alloy and hydrogen sepn

A continuous method of making controllable quantities of skeletal catalysts operates in a neutral aq. suspension in closed circuit, using alloys of the catalyst metal with aluminium and/or zinc as the starting matl. the aluminium and/or zinc is leached out from the ground alloy using an alkaline liq...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	GAL, SANDOR, MONOSTORY, ADORJAN, SIPOSS, GEZA, SZEILER GEB. NEMETH, MARGIT, VARPALOTA, PUNGOR, ERNOE, BARLAI, JOZSEF
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A continuous method of making controllable quantities of skeletal catalysts operates in a neutral aq. suspension in closed circuit, using alloys of the catalyst metal with aluminium and/or zinc as the starting matl. the aluminium and/or zinc is leached out from the ground alloy using an alkaline liquor and the prod. is sepd and removed. The alloying constituents are leached out from the ground alloy in a flowing alkaline soln. pref. a soda soln. contg. 0.5-15 (4-6)% soda, which is directly heated with steam, esp. to 80-100 (90-85) degrees C, the hydrogen being sepd. and removed from the flowing system by conventional means, while the remaining heterogeneous system is sepd. by continuous washing of the catalyst and centrifuging or magnetic sepn.