Argon oxygen product

The goal of the present study is to provide the information needed for design of a practical underwater propulsion system utilizing powdered aluminum burned with steam. Experiments are being conducted in atmospheric pressure dump combustors using argon/oxygen mixtures and steam as oxidizers. Spectrometer measurements have been made to estimate combustion temperatures and radiant heat transfer rates, and samples of combustion products have been collected to determine the composition and particle size distribution of the products. 

Derivation Before 1971 the only commercial method for large-scale oxygen production was fractionation of liquefied air this has largely been replaced by a process that utilizes ambient temperature separation by means of a pressure cycle in which molecular sieves of synthetic zeolite preferentially adsorb nitrogen from air, giving 95% oxygen and 5% argon. Electrolysis of water is used for small amounts and laboratory demonstration. 

Great quantities of argon are used in the production of stainless steels with the AOD (argon-oxygen-decarburization) process, treated in Chapter 8 Iron. 

The solid residues of the combustion of Pb(C2H5)4 in air or in argon-oxygen mixtures in the presence of hydrocarbons are rhombic PbO, PbC03, and small amounts of Pb304 and Pb(N02)2 when the combustion is performed in air [41]. Tetragonal and rhombic lead oxide are products of the oxidation at temperatures between 250 and 560 °C [23], e.g., at410°C [44]. 

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