| 摘要 |
Addition products of ethylene oxide are formed by passing alcohols, phenols, or their addition products with ethylene oxide or propylene oxide, with ethylene oxide in a molar ratio of 1:1 to 1:4 in the presence of conventional alkaline catalysts, through an extended tube-like reactor having a small cross-section, and surrounded by a heat exchanger, the mixture is at such a pressure that it is in the liquid state and reaches 170-230 DEG C. in the first half of the reactor zone, and in the second half passes through a maximum of 240-330 DEG C., and has a residence time in the reactor zone of 8-150 seconds, and the product leaving the zone is immediately cooled to below 100 DEG C. The process adds on up to four moles of ethylene oxide. Examples describe the addition of ethylene oxide to lauryl alcohol, nonylphenol, a mixture of C12-C14 fatty alcohols and a mixture of unsaturated predominantly C18 alcohols.
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