PATENTS

2533. NIPPON CHEMICAL INDUSTRIES CO. [Catalysts for Synthesizing Isobutanol.] Japanese Patent 157,787, July 20, 1943. Chem. Abs., vol. 44, 1950, p. 1127.

ZnO, CuO, MnO, or Cr2O3 or hydroxides, alone or mixed after adding an alkali complex salt of the single or mixed metals and then heating, forms a long-lasting active catalyst for making iso-BuOH from H2 and CO. For example, H2 and CO (2:1) passed at 40° and 150 atm. over Zn(OH)2 and Cu(OH)2 [precipitated together from Zn(NO3)2 2 and Cu(NO3)2 1 molecule with NaOH, dried at 400°, and powdered], heated 100°-400° with 1 molecule K3[Cr(C2O4)3]·3 H2O gave 30% iso-BuOH and only 15% higher alcohols.

NIPPON FATS & OILS CO. See abs. 2554, 3227.

NIPPON SYNTHETIC PETROLEUM CO. See abs. 604.

NISSAN CHEMICAL INDUSTRIES CO. See abs. 1053.

NISSIN CHEMICAL INDUSTRIES CO. See abs. 1809.

NITROGEN ENGINEERING CORP. See abs. 2780.

NITTO CHEMICAL INDUSTRIES CO. See abs. 2400.

NIWA, A. See abs. 3705.