化工专业毕业论文_中职中专_职业教育_教育专区。离子膜烧碱生产和 产品检测 专业：化学教育 姓名：高 璐 1 目录 一、 前言······················································2 二、实
离子膜烧碱生产和 产品检测 专业：化学教育 姓名：高 璐 1 目录 一、 前言······················································2 二、实验部分················································3 1、离子膜工艺优点················································3 2、离子膜生产工艺··············································4 （1）生产任务····················································4 （2）物料特性····················································4 （3）产品用途····················································4 （4）原料·························································5 （5）生产原理·····················································5 （6）工艺控制指标·················································9 （7）不正常现象及处理方法········································10 （8）安全生产····················································10 3、工艺优化········································11 三、结果分析························································13 1、成品质量检测方法·············································13 四、结论······················································14 参考文献··········································16 致谢·················································17 2 离子膜烧碱生产和产品检测 [摘要] 介绍了国内烧碱行业的发展情况，指出离子膜烧碱的优点，并详细介绍了离子膜烧 碱的生产工艺，在实际操作中进行了工艺的优化,如解决冷凝液倒流、排除不凝气。同时用 酸碱滴定对产品进行了含量分析。 [关键字] 离子膜烧碱 分析 工艺 Ionic membrane caustic soda production and product testing 0803 Industrial analysis and detection [Abstract] Introduced the domestic caustic soda, and points out that the development of industry of ionic membrane caustic soda, introduces the advantages of ionic membrane caustic soda production technology, and in the actual operations of the optimization of the process, such as solving the condensate gas back, exclude coagulation. Use acid-base titration product was content analysis. [Key word] Ion film caustic soda, Analysis, Industrial art 一、前言 烧碱是一种重要的氯碱产品，在国民经济中占有重要地位，其中离子膜烧碱 不仅质量好，能耗低，“三废”排放少，而且从根本上解决了由石棉隔膜法制碱 造成的石棉绒对水质的污染和对操作人员健康的影响。 近年来，我国烧碱产业发展迅速，2004年生产能力只有1190万吨，2007年增 加到2l81万吨，2008年进一步增加到2472万吨，同比增长l3.34％。其中离子膜 法烧碱工艺因为具有能耗低、产品质量好，占地面积小，自动化程度高，清洁环 保等优势发展较为迅速，新扩产的烧碱项目中以离子膜碱为主，2007-2008年扩 能统计显示，新建离子膜烧碱产能占到同期烧碱扩能的92％[2]。 目前世界上生产烧碱的方法有4种：隔膜法、水银法、离子膜法、苛化法。 隔膜法、水银法和离子膜法都是通过电解盐水生产烧碱；而苛化法则是以石灰和 纯碱为原料制取烧碱。苛化法目前仅在少数地区采用，我国苛化法烧碱仅占总产 3 量的1.7％左右。水银法烧碱含盐量低，产品浓度高，质量好，但是该法对环境 污染严重，其汞害对人体有很大危害，联合国环境保护组织已要求逐步取代该法。 隔膜法在国内外均广泛采用，该法早期为石墨阳极电解槽，在组装电槽中会产生 大量铅和沥青烟雾，在操作中会生成石棉绒碱性污水和石棉绒粉尘，同时该法能 耗非常大，因此，从20世纪70年代国内外开始用金属阳极电槽取代石墨阳极电解 槽。目前发达国家已完全淘汰石墨阳极电解槽。我国的石墨阳极装置每年尚有约 20多万吨的产量，国家已将其列入淘汰类工业生产能力。与石墨法相比，金属阳 极隔膜法在技术上有了很大的提高，但能耗依然较高，产品质量较差，同时仍存 在一定的石棉绒污染问题[1]。 20世纪80年代，我国离子膜烧碱
