Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1980-08-29
1982-07-27
Hall, James R.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
264118, 264119, 264142, 264 15, B01J 2104
Patent
active
043416632
ABSTRACT:
A process for the preparation of shaped bodies includes preparing a plastic mixture of a material selected from the group consisting of aluminum oxides, aluminum hydroxides, silicon oxides, silicon hydroxides and mixtures thereof from a predominantly dry component K1 in powdered form and a paste component K2 comprising water and additional additives, continuously extruding the plastic mixture into cut lengths, shaping the cut lengths into spherical shaped bodies and drying the spherical shaped bodies and optionally tempering such bodies to form catalyst and catalyst supports. The solids content of the powdered component K1 is from 65 to 100% by weight whereas the solids content of the paste component K2 is 10 to 50% by weight. Preferable spherical shaped bodies are based on Al.sub.2 O.sub.3, SiO.sub.2, or Al.sub.2 O.sub.3 /SiO.sub.2.
REFERENCES:
patent: 2307878 (1943-01-01), Connolly
patent: 2347648 (1944-05-01), Thomas et al.
patent: 2867000 (1959-01-01), Huszar
patent: 3547832 (1970-12-01), Hass et al.
patent: 3836354 (1974-09-01), Wienert
patent: 4238430 (1980-12-01), Phillips
Bretz Karl-Heinz
Derleth Helmut
Sauer Gunther
Hall James R.
Kali-Chemie Aktiengesellschaft
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