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- W2376191879 abstract "Methylene bisalkylphenols were synthesized by condensation reaction from alkylphenol and formaldehyde through an oxalic acid-catalyzed autoclave process,and the target products were identified by means of IR,ESI-MS and 1HNMR.The experimental results show that compared with normal pressure process,the autoclave process enabled the conversion of nonylphenol to increase by about 20% and the selectivity of methylene bisnonylphenol to be elevated by approximately 10%.The effects of catalyst dosage,reaction time,temperature and substrate molar ratio on the condensation reaction were investigated and the influence factors were optimized so that the conversion of nonylphenol was further improved and the selectivity of methylene bisnonylphenol was as high as 92.1%.The condensation conditions for preparing methylene bisdodecylphenol through the autoclave process also were optimized by an orthogonal experiment.The experimental results show that the autoclave process is a facile,low-cost and efficient technology to synthesize methylene bisalkylphenols,the precursor of hydrophobic skeletons of Gemini surfactants." @default.
- W2376191879 created "2016-06-24" @default.
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- W2376191879 date "2013-01-01" @default.
- W2376191879 modified "2023-09-27" @default.
- W2376191879 title "Synthesis of Methylene Bisalkylphenols by Autoclave Process" @default.
- W2376191879 hasPublicationYear "2013" @default.
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