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Pyrogenic silica or titania or alpha-alumina cuprous chloride catalyst of hydrogen chloride/oxygen reaction
Pyrogenic silica or titania or alpha-alumina cuprous chloride catalyst of hydrogen chloride/oxygen reaction
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机译:热解二氧化硅或二氧化钛或氯化氢/氧气反应的α-氧化铝氯化亚铜催化剂
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摘要
Catalyst of cuprous chloride, as a first layer, on a carrier of particles of pyrogenic anhydrous silica or titania, or alpha-alumina produced from pyrogenic gamma-alumina, having as a second layer an alkali metal chloride especially KCl, and preferably also a rare earth metal chloride; especially LaCl.sub.3 ; formed by impregnation using non- aqueous solvents, especially CuCl in acetonitrile followed by KCl/LaCl. sub.3 in formic acid. The catalyst is effective at desirable reaction rates at temperatures well below 400 C., such as 200-300. degree. C. and even below 200 C., under certain conditions, for oxyhydrochlorination of organic materials such as methane; and is also effective for production of chlorine by the Deacon process at relatively low temperatures. Problems due to catalyst volatility and melting are substantially mitigated.
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