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- W1569297640 abstract "Lipophilic sulphonic acids revealed excellent activity as catalysts for the hydrolysis of benzophenone azine (Ph2CNNCPh2) into hydrazine in a two-phase system of xylene and 2N sulphuric acid. High yields of hydrazine (89.8-93.2%) were obtained with a catalytic amount of dodecyl- or didecylbenzenesulphonic acid (2 mol-%, relative to the amount of azine) at 90°C for 1 h. These values are in sharp contrast to the 0.64% yield of hydrazine obtained in the absence of sulphonic acid. For high catalytic activity, dilute mineral acid should be present in the aqueous phase for effective regeneration of the free sulphonic acid. Strongly hydrophilicp-toluenesulphonic acid was extracted almost entirely into the aqueous phase and was less active catalytically at high concentrations." @default.
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- W1569297640 date "1988-07-01" @default.
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- W1569297640 title "Ammonia—Hydrazine conversion processes" @default.
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- W1569297640 doi "https://doi.org/10.1016/s0166-9834(00)80393-0" @default.
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