Boehmite production by precipitation from sodium aluminate solut

Details Boehmite production by precipitation from sodium aluminate solut Boehmite production by precipitation from sodium aluminate solut

1985-06-05

1986-06-17

Carter, H. T.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423127, 423629, 23301, 23305A, C01F 704

Patent

active

045955816

ABSTRACT:
Substantially pure boehmite is produced by heating an aqueous sodium aluminate solution to a temperature of about 115.degree.-145.degree. C., preferably about 120.degree.-130.degree. C., treating the heated solution with alumina seed material and separating a boehmite precipitate from the solution. A particularly preferred seed material is boehmite gel.

REFERENCES:
patent: 2668751 (1954-02-01), Porter
patent: 3466142 (1969-09-01), Hambly
patent: 3486850 (1969-12-01), Day
patent: 3983212 (1976-09-01), Lowenstein et al.
patent: 4049773 (1977-09-01), Majdell et al.
patent: 4201749 (1980-05-01), Yamada et al.
patent: 4305913 (1981-12-01), Anjier
patent: 4311486 (1982-01-01), Yamada et al.

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