Compositions – Preservative agents – Anti-corrosion
Patent
1983-01-12
1984-05-08
Lovering, Richard D.
Compositions
Preservative agents
Anti-corrosion
423627, 502238, 502355, B01J 1300
Patent
active
044473516
ABSTRACT:
The present invention relates to a method of preparing an alumina hydrosol from an aluminum sulfate solution. The subject method comprises the steps of admixing a stoichiometric amount of a metal selected from the group consisting of calcium, strontium and/or barium in the form of a mixture of a hydrated chloride metal salt and a metal hydroxide with an aqueous aluminum sulfate solution, filtering the resulting metal sulfate precipitate from the above admixture, recovering a substantially sulfur-free aluminum-containing filtrate solution, admixing aluminum metal with the filtrate solution, and digesting the aluminum metal at digestion conditions with the filtrate solution to form an alumina hydrosol possessing the desired Al:Cl weight ratio.
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Handbook of Chemistry and Physics, 49th Ed., Chemical Rubber Company, Cleveland, Ohio, (1968-1969), p. B--307.
Brookes Anne
Hoatson Jr. James R.
Lovering Richard D.
Morris Louis A.
Page II William H.
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