| 摘要 |
1284464 Oxidation catalyst STANDARD OIL CO 12 Nov 1969 [30 Dec 1968 20 Oct 1969] 55385/69 Heading B1E [Also in Division C5] A catalyst composition consisting of a calcined catalytic oxide complex of an alkali metal, bismuth, iron, molybdenum and optionally oxides of alkaline earth metals, phosphorus, arsenic, antimony, cobalt, or nickel, has the formula wherein Q is an alkali metal, R is an alkaline earth metal, T is phosphorus, arsenic and/or antimony, m is cobalt and/or nickel; and a, b and c are 0.1 to 12, d is 0.1 to 8, e is 0 to 8, f is 0 to 6, g is 0 to 12 and x is number determined by the valence requirements of the other elements present. The catalyst may optionally be supported, specified carriers being alumina, pumice, silicon carbide, zirconia, titania, silica, alumina-silica, and the inorganic phosphates, silicates, aluminates, borates and carbonates. The composition is activated by calcining 500‹F to 1250‹F for 2 to 24 hours, optionally followed by further activation comprising heat treating at above 800‹F, e.g. at 800-1400‹F for 1 to 48 hours, in the presence of an oxygen containing gas. |
