| abstract |
The present invention relates to a preparation method of ethanamine, which is prepared through three steps of sulfonation, salt formation and refining. The whole preparation process of ethanamine does not use organic solvents, which reduces cost and pollution. In addition, absolute ethanol is used as solvent to refine the crude product, the whole process is not only less costly, but also more environmentally friendly, and the mass fraction of ethylamine obtained by the method of the present invention is also relatively high. In a word, the present invention has the advantages of simple design, low cost, environmental protection and high mass fraction advantage. |