초록 ▼

A catalyst mass for heterogeneous catalytic reactions, especially the flameless burning of hydrocarbons, comprises a support consisting of impurity-free silico-alumina fibers and a catalyzer which consists of at least one element (in elemental form) and at least one other oxide of an element from gr

A catalyst mass for heterogeneous catalytic reactions, especially the flameless burning of hydrocarbons, comprises a support consisting of impurity-free silico-alumina fibers and a catalyzer which consists of at least one element (in elemental form) and at least one other oxide of an element from groups III, VI, VIIIb and VIIIc and the rare-earth elements of the periodic table.

대표청구항 ▼

A catalyst mass for the heterogeneous contact catalyst of reactions, especially the flameless combustion of hydrocarbons, which consists essentially of an iron-free silico-alumina fiber support with proportions of silica and alumina respectively between 40% and 60% by weight and substantially free f

A catalyst mass for the heterogeneous contact catalyst of reactions, especially the flameless combustion of hydrocarbons, which consists essentially of an iron-free silico-alumina fiber support with proportions of silica and alumina respectively between 40% and 60% by weight and substantially free from impurities, and an iron-free catalyzer consisting essentially of at least one element in elemental form and at least one oxide of an element selected from the groups III, VI, VIIIb, VIIIc and the rare-earth elements of the Periodic Table, the weight ratio of the element, in elemental form, to the support being substantially 0.001 to 0.02 and the weight ratio of the oxide to the support being substantially 0.01 to 0.2, said support having a density between 0.04 and 0.1, a specific surface between 0.5 and 1 m2/g, and a thermal stability sufficient to preclude modification of the surface and texture upon prolonged exposure to temperatures up to 900°C.