Synthetic hydrotalcite

Details Synthetic hydrotalcite Synthetic hydrotalcite

1991-02-04

1993-01-19

Straub, Gary P.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423179, 423419P, 423430, 423600, 423630, 424686, C01B 3124, C01F 524, C01F 1118, C01F 702

Patent

active

RE0341649

ABSTRACT:
Disclosed is a method for producing hydrotalcite in high yield including reacting activated magnesia with an aqueous solution containing aluminate, carbonate, and hydroxyl ions. The [method further includes a first step of] activated magnesia is produced by heating magnesium carbonate or magnesium hydroxide to a temperature between about 500.degree.-900.degree. C. [to form activated magnesia or magnesium oxide.] The method is suited to producing synthetic hydrotalcite from industrial Bayer liquor.

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