1699. ------. [INTERNATIONAL HYDROCARBON SYNTHESIS CO.] [Regenerating a Catalyst.] Netherlands Patent 53,451, Nov. 16, 1942. Chem. Abs., vol. 41, 1947, p. 3604.

Catalyst for converting CO with H₂ are precipitated on MgCO₃. This is dissolved in carbonated H₂O and precipitated again by heating. The catalyst proper is dissolved in acid and precipitated with an alkaline lye on the regenerated MgCO₃.