Solid aluminum hydroxide compositions

Details Solid aluminum hydroxide compositions Solid aluminum hydroxide compositions

1987-05-06

1989-11-21

Doll, John

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

23305A, 252175, 423467, 423551, 423556, 423625, 423DIG9, C01F 734, C01F 756, C01F 774

Patent

active

048821403

ABSTRACT:
Solid aluminum hydroxide compositions having improved solubility, stability and filterability are formed by adding at least a stoichiometric amount of a solid base to a concentrated solution of an aluminum salt (about 8.3% Al.sub.2 O.sub.3 or higher) and stirring vigorously. The base used has an alkali metal, alkali earth metal, or other metallic cation, and does not contribute an anion other than hydroxide to the solution. Particularly suitable bases are carbonate and bicarbonate.

REFERENCES:
patent: 1137005 (1915-04-01), Jacobson
patent: 3066012 (1962-11-01), Wilson et al.
patent: 4009103 (1976-07-01), Burke
patent: 4388208 (1983-06-01), Gytel
patent: 4563342 (1986-01-01), Gunnarsson et al.
patent: 4681697 (1987-07-01), Doetsch et al.
CRC Handbook of Chemistry and Physics, 62nd ed., Weast et al., eds. CRC Press, Inc., 1981, pp. 8-150.

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