Abstract: Provided is a catalyst for reducing and decomposing oxygen in gas, highly efficiently and stably in from a low temperature region to a relatively high temperature region, in the presence of a reducing substance, containing at least one kind of a metal oxide selected from the group consisting of Ti, Si, W, Mo, Zr and Fe, as a catalyst component A; and at least one kind of a metal selected from the group consisting of Pt, Pd, Rh, Ir, Ru, Ni and Co, and/or a metal oxide thereof, as a catalyst component B; in removing oxygen, presence of a reducing substance in gas is effective.

Abstract: The present invention provides a method of treating waste water including nitrogen-containing organic compounds to convert these compounds into harmless gases without performing a post-treatment. The method comprises spraying waste water in a heated space to gasify the waste water into waste gas, and oxidizing the waste gas by contacting it with a catalyst to convert the nitrogen-containing organic compounds into harmless gases. An apparatus for treating waste water using the method is also disclosed.

Abstract: The present invention provides a method of treating waste water including nitrogen-containing organic compounds to convert harmless gases without post-treatment. The method comprises steps of spraying the waste water in a heated space to gasify the waste water to waste gas, and oxidizing the waste gas by contacting with a catalyst to convert the nitrogen-containing organic compound into harmless gases.

Abstract: A process for producing aromatic or heterocyclic nitriles, which comprises reacting an alkyl-substituted aromatic hydrocarbon or an alkyl-substituted heterocyclic compound with ammonia and oxygen in the presence of a catalyst composition comprising (a) at least one composite oxide selected from the group consisting of a binary composite oxide comprising titanium and silicon, a binary composite oxide comprising titanium and zirconium and a ternary composite oxide comprising titanium, silicon and zirconium, and (b) an oxide of at least one metal selected from the group consisting of vanadium, molybdenum, tungsten, chromium, antimony, bismuth, phosphorus, niobium, iron, nickel, cobalt, manganese and copper.

Abstract: Direct softening heat treatment of rolled wire rods comprises the steps of:providing wire rods by hot- or warm-rolling, and immediately following rolling, coiling the rolled wire rods in an annealing furnace. Apparatus therefor comprises an annealing furnace provided with an externally or internally built coiler for rolled wire rods disposed adjacent to a rolling line of said wire rods, the coiler being disposed so as to directly receive the rolled wire rods.

Abstract: Direct softening heat treatment of rolled wire rods comprises the steps:providing wire rods by hot- or warm-rolling, andimmediately following rolling, coiling the rolled wire rods in an annealing furnace. Apparatus therefor comprises an annealing furnace provided with an externally or internally built coiler for rolled wire rods disposed adjacent to a rolling line of said wire rods, the coiler being disposed so as to directly receive the rolled wire rods.