1809. KAWAMURA, M., AND OTHERS (Nissin Chemical Industries Co.). [Iron Catalysts for Manufacture of Water Gas.] Japanese Patent 654 (1951), Feb. 16, 1951. Chem. Abs., vol. 46, 1952, p. 11,643.

PATENTS

1809. KAWAMURA, M., AND OTHERS (Nissin Chemical Industries Co.). [Iron Catalyst for Manufacture of Water Gas.] Japanese Patent 654 (1951), Feb. 16, 1951. Chem. Abs., vol. 46, 1952, p. 11,643.

Waste H₂O from a Cu mine, containing CuSO₄, is treated with Fe plates to precipitate Cu; the dissolved Fe is oxidized and precipitated as Fe (OH)₃. This is mixed with K₂Cr₂O₇, MgO, and dunite; fired at 600º, and molded.

KEARBY, K. K. See abs. 192, 193,194, 1860. KECK, R. See abs. 1783.