Examples of 'silica-alumina' in a sentence
Meaning of "silica-alumina"
Silica-alumina (noun): A compound or material composed of silica and alumina, which are common minerals or chemical compounds. This term is often used in chemistry, geology, or industrial processes where materials with specific properties related to silica and alumina are needed
How to use "silica-alumina" in a sentence
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silica-alumina
Preferred binders are alumina and silica-alumina.
The support was a silica-alumina in the form of extrudates.
Advantageously the chemical composition is silica-alumina.
The amorphous silica-alumina carrier is acidic by nature.
The carrier is an amorphous silica-alumina carrier.
Silica-alumina is a material known to possess catalytic activity.
A preferred matrix comprises silica-alumina or alumina.
The silica-alumina was removed by filtration using a membrane filter.
Effect of fluoride level on silica-alumina catalysts.
This silica-alumina was prepared as described in the silica preparation.
A suitable amorphous cracking component is silica-alumina.
The fluorided silica-alumina samples were then calcined.
Preference is given to alumina or armorphous silica-alumina.
It is also contemplated that a silica-alumina composition of matter be utilized.
Series of catalysts was prepared by impregnating a silica-alumina support.
See also
A silica-alumina combination with low acid activity is acceptable.
Preferred is the washed silica-alumina filter cake.
A preferred catalyst system comprises platinum on silica-alumina.
The low surface área silica-alumina is vitreous in form.
Preferred supports include alumina and silica-alumina.
The silica-alumina composition of the three structures appears to be similar.
These extrudates constituted the silica-alumina support.
Silica-alumina can be made by any method known in the art.
The zeolite is dispersed in a silica-alumina type matrix.
Silica gel and silica-alumina gel substrates are particularly preferred.
Very preferably the oxide support is formed by silica-alumina.
The use of supports based on silica-alumina has also been reported.
In particular alumina is preferred, optionally in combination with silica-alumina.
A catalyst support containing this silica-alumina was then produced.
A catalyst which can be used in hydroconversion is a platinum formulation on silica-alumina.
Preference is given to the use of silica-alumina as amorphous cracking component.
Preferably, use is of a platinum component on an amorphous silica-alumina carrier.
The catalyst silica-alumina is an amorphous substance which is not an aluminosilicate compound.
The characteristics of the catalyst constituted by silica-alumina were as follows,.
The characteristics of the silica-alumina present in the oligomerization catalyst are as follows,.
The carrier for the catalyst is amorphous silica-alumina.
The silica-alumina used in the process of the invention is prepared by co-precipitation.
Another example is a metallocene catalyst on a sulfated silica-alumina support.
This silica-alumina hydrogel is mixed with an aluminum hydrate powder or suspension.
Process for oligomerizing olefins using a silica-alumina based catalyst.
When silica-alumina gel is gradually heated to a higher temperature it loses water.
It is also advantageously possible to use mixtures of silica-alumina and clay.
Fluorided silica-alumina catalyst may be used as a packed bed or a fluidized bed.
A particularly preferred catalyst comprises platinum supported on a silica-alumina carrier.
Silica and silica-alumina meeting these criteria are preferred support materials.
Alumina is a preferred support material, optionally in combination with silica-alumina.
This silica-alumina hydrogel is mixed with the powder or a suspension of aluminium hydrate.
Another preferred embodiment is to use a mixture of silica-alumina and alumina.
The fluorided silica-alumina samples obtained in this manner were then calcined as follows.
The preferred fluoride level depends on the silica-alumina ratio.
