Process for producing aluminium containing sols

Details Process for producing aluminium containing sols Process for producing aluminium containing sols

1983-11-14

1985-07-30

Carter, H. T.

Compositions

Preservative agents

Anti-corrosion

423625, 423630, B01J 1300

Patent

active

045320721

ABSTRACT:
This invention relates to aluminium compounds and their preparation.
In accordance with the invention a peptizable alumina hydrate is prepared by hydrolyzing an aluminium alkoxide at a water:aluminium ratio at or near the stoichiometric value. One example of an aluminium alkoxide which has been hydrolyzed in accordance with the present invention is aluminium sec-butoxide (Al(OC.sub.4 H.sub.9).sub.3.sup.s); thus alkoxide has been hydrolyzed at water:aluminium ratios of 3:1 and 4:1 to give peptizable alumina hydrates.
Cold water (e.g. at 16.degree.-22.degree. C.) and aluminium alkoxide are preferably brought together to effect the hydrolysis.

REFERENCES:
patent: 2805920 (1957-09-01), Richardson
patent: 3056725 (1962-10-01), Rinse et al.

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