2010-9-17 13:54:00

氯乙酸安全操作规程

氯乙酸安全操作规程   1、投料前打开人孔盖，仔细检查釜内各管线是否完好。否则检修后封人孔。准备投料。 2、按照要求：先投乙酸，再投硫磺。 3、检查个控制点、出气管是否畅通。投料控制阀处于关闭状态。检查温度计、比重计是否完好。 4、关闭进水阀，打开蒸汽阀。蒸汽压力控制≤0.2MPa，使釜内物料温度升至70℃。 5、打开氯气供给阀，流量控制在5～10，上气管道出现回流后，进行取样。 6、当比重计1.1～1.2开始摇动时，关闭蒸汽阀，增加氯气流量10～15. 7、在反应过程中，釜温升过快，釜夹套进冷却控制温升速度，但不得使物料温度低于80℃。 8、反应过程中，每2小时取样一次。当比重计测的比重为1.350时，调节氯气阀，减少供氯量。釜温检测在95℃左右.直至物料比重达1.358，停止供氯。 9、打开蒸汽阀，使釜温升至110℃左右，使轻馏分流向副釜，时间10分钟。 10、静置20分钟，物料转至结晶釜。 11、检查氯化釜各控制阀，进行投料或转料，准备工作。 12、在生产过程中，出现泄漏点时，立即停车，降低釜温，使釜内处于负压状态，方可检修。

陕西王伟 | 阅读全文 | 回复(11) | 引用通告 | 编辑

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