178. ------. [BERGWERKSGESELLSCHAFT HIBERNIA] [Toluol.] German Patent Appl. B 199,586, no date (Cl. 12 6-1.03). Auszuge deut. Patent Anmeldingen, vol. 6, p. 12.

PATENTS

178. ------. [BERGWERKSGESELLSCHAFT HIBERNIA] [Toluol.] German Patent Appl. B 199,586, no date (Cl. 12 6-1.03). Auszuge deut. Patent Anmeldingen, vol. 6, p. 12.

Toluol is obtained by passing a gas mixture of benzol, CO, and H₂ at 400°-600° over a catalyst of ZnO or CdO and Al₂O₃ or ThO₂ and then over a cokelike substance.