事故信息 - 化工安全人

免 F 19930614浙江瑞安化工厂反应釜爆炸致3死14伤（编号：SG00002163）

2025-10-10 2211

一、时间地点

时间/日期: 1993-06-14

地点: 中国、浙江、温州

二、工厂介绍

公司介绍: 瑞安化工厂

所在行业

三、事故介绍

事故类型: 爆炸

事故概述: 1993年6月14日，浙江省瑞安化工厂均三甲苯胺车间配酸工段反应釜发生爆炸，造成3人死亡，9人重伤，5人轻伤，经济损失达200万元。

事故后果

死亡人数： 3人、受伤人数： 14人、疏散人数：人

经济损失： 20019万

四、事故原因

直接原因类别

直接原因: 改造用工艺是用醋酐取代硫酸，与硝酸配酸进行硝化反应，其危险性在：醋酐和硝酸混合可产生硝酸乙酰和四硝基甲烷，这两种物质极不稳定容易爆炸，反应温度应控制在10℃以下，而此工艺要求控制的温度未30℃。

根本原因类别

根本原因: 釜大投料少，物料仅浸没搅拌底部7.5cm，搅拌作用极大地降低。更严重的是液面距温度计底部还有40cm，温度计只能反应出气相温度而不能反映出液相温度。

五、事故链

偏离类别

后果类别

六、特征

涉及化学品: 硝酸，醋酐

涉及单元操作

涉及工业设备: 反应器

涉及工业操作

涉及化学工艺/装置: 硝化工艺

运营阶段

事故信息检索

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