Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1981-05-18
1982-11-30
Konopka, P. E.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252447, 252456, 252457, 252460, 252466PT, 252472, 252473, 252475, 252476, 260690, B01J 3128, B01J 3126, B01J 3702, B01J 2118
Patent
active
043615007
ABSTRACT:
The invention relates to a new process for the preparation of a supported metal catalyst containing at least one metal belonging to Group A and optionally at least one metal belonging to Group B, wherein Group A encompasses the metals palladium, rhodium, ruthenium, platinum, iridium, osmium, silver, gold and cadmium and Group B encompasses the metals zinc, mercury, germanium, tin, antimony and lead. According to the invention, the metal(s) is (are) applied onto the support in the presence of at least one compound of the general formula (I), ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each stands for a straight-chained or branched C.sub.1-20 alkyl group, a C.sub.1-4 hydroxyalkyl group or a phenyl-(C.sub.1-4 alkyl) group optionally having additional substituents, preferably C.sub.1-4 alkyl groups, on the phenyl ring, and
REFERENCES:
patent: 2760940 (1956-08-01), Schwarzenbek
patent: 2852474 (1958-09-01), Arnmdale et al.
patent: 3600330 (1971-08-01), Schneble, Jr. et al.
patent: 4239653 (1980-12-01), Bodnar et al.
Mathe Tibor
Petro Jozsef
Tungler Antal
Konopka P. E.
Magyar Tudomanyos Akademia Kosponti Hivatala
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