事故信息 - 化工安全人

免 F 20110720河北建新化工三氧化硫泄漏致29人入院（编号：SG00000697）

2025-10-10 1605

一、时间地点

时间/日期: 2011-07-20

地点: 中国、河北、沧州

二、工厂介绍

公司介绍: 河北建新化工股份有限公司

所在行业: 精细化工

三、事故介绍

事故类型: 释放/泄漏

事故概述: 2011年7月20日下午6时30分左右，位于渤海新区临港化工园区的河北建新化工股份有限公司间氨基苯磺酸车间发生泄漏事故，并引起着火，未造成企业人员伤亡，但泄漏并引起着火后，由三氧化硫形成的硫酸雾，使位于下风向的距该企业3公里以外的中捷产业园区辛庄子部分村民感觉不适，29人到医院观察。

事故后果

死亡人数：人、受伤人数：人、疏散人数：人

经济损失： 0万

四、事故原因

直接原因类别

直接原因: 放料阀与放料管连接不牢固，在磺化液的冲击下，放料管脱落，造成磺化液大量泄漏。115℃的磺化液喷射到不到1米处的聚丙烯水管上，水管受热变形发生水泄漏，同时磺化液中含有的大量三氧化硫遇水发生剧烈放热反应，

根本原因类别

根本原因

五、事故链

偏离类别

后果类别

六、特征

涉及化学品: 三氧化硫，硝基苯磺酸

涉及单元操作

涉及工业设备

涉及工业操作

涉及化学工艺/装置

运营阶段

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