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目的 本研究旨在通过系统应用熔融结晶技术提纯氯乙酸产品,探究关键影响因素。方法 对降温速率、结晶重点温度、养晶时间、升温速率和发汗重点温度等进行调整测试,并对提纯后的产品进行液相色谱组分分析。结果 最终确定了最佳工艺条件:以1.0°C/min的降温速率使氯乙酸产品降温至29.3℃,并在此温度下结晶2.5h,之后以 0.7 °C/min的升温速度进行升温操作至50.3℃。最终产品收率为87.5%,氯乙酸纯度为99.3%。结论 本研究方法为氯乙酸的工业化提纯提供科学、可行且具前瞻性的参考方案,推动相关产业绿色、高效发展。
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