Akzo Nobel N.v.

Marianne Frederika Reedijk

Auke Gerardus Talma

Elwin Schomaker

Siebe Cornelis De Vos

Robin Winters

Cornelis Gijsbertus Van Ginkel

Aaldert Johannes De Jong

Johanna Henriëtte Zijtveld-Van Der Wiel

Roy Geerts

Benno Middelhuis

The invention relates to a process for the production of a layered double hydroxide comprising carbonate by preparing a divalent and trivalent metal ion source-containing slurry, which is subsequently treated solvothermally. If the slurry does not contain a divalent metal ion source containing carbonate, a carbonate source is added during or after the solvothermal treatment.

Process for preparing layered double hydroxide comprising carbonate

A process is disclosed for preparing an organically modified layered double hydroxide having a distance between the individual layers of the layered double hydroxide of about 1.5 nm and comprising an organic anion as charge-balancing anion, the process comprising the steps of: (a) preparing a precursor suspension comprising a divalent metal ion source and a trivalent metal ion source; (b) solvothermally treating the precursor suspension to obtain a double layered hydroxide, wherein an organic anion is added before or during the formation of the layered double hydroxide of step (b), or following the formation of the layered double hydroxide, so as to obtain the organically modified layered double hydroxide, with the proviso that deoxycholic acid is not the sole organic anion.

Process for preparing organically modified layered double hydroxide

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Ochten, Netherlands

Marianne Frederika Reedijk