英语语法分析

In this paper, the progress on diphenolic acid preparation by condensation reaction of levulinic acid and phenol is introduced.

利用乙酰丙酸和苯酚缩合反应制取双酚酸。

The effects of extremely-low-concentration acid hydrolysis on levulinic acid production from rice husk and cellulosic structure were investigated.

研究了极低酸水解对稻壳转化乙酰丙酸和纤维结构的影响。

Levulinic acid is always prepared by acid hydrolysis under the condition of high temperature and high pressure, so the problem exists in the corrosion for the equipment.

本文针对目前高温高压条件下酸法水解过程中存在的设备腐蚀问题，采用常温常压条件制备乙酰丙酸，研究了葡萄糖水解反应动力学，以及酮对水解过程中产生的腐黑物的抑制作用。