Catalytically active silica and alumina gel and process for prep

Details Catalytically active silica and alumina gel and process for prep Catalytically active silica and alumina gel and process for prep

1989-04-28

1991-09-17

Dees, Carl F.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Silicon containing or process of making

502263, B01J 2112

Patent

active

050495364

ABSTRACT:
A silica and alumina gel is disclosed, which is amorphous at X-rays, has a molar ratio of SiO.sub.2 /Al.sub.2 O.sub.3 comprised within the range of from 30/1 to 500/1, a surface area comprised within the range of from 500 to 1000 m.sup.2 /g, a total volume of pores comprised within the range of from 0.3 to 0.6 ml/g, an average diameter of the pores of the order of magnitude of 10 .ANG. or less and which is free, or substantially free, from pores having a diameter larger than 30 .ANG..
Such a silica and alumina gel is catalytically active in reactions of conversion of the hydrocarbons, such as: oligomerization, alkylation, isomerization and dewaxing.
Also a process for preparing such a silica and alumina gel is disclosed.

REFERENCES:
patent: 3535232 (1970-10-01), Lawrance et al.
patent: 3923691 (1975-12-01), Braithwaite et al.
patent: 4766101 (1988-08-01), Nortier et al.

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