| 环氧乙烷氧化反应器化学钝化处理 |
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| 引用本文： | 余存烨. 环氧乙烷氧化反应器化学钝化处理[J]. 清洗世界, 2009, 25(5) |
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| 作者姓名： | 余存烨 |
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| 作者单位： | 中国石化上海石化股份有限公司,上海,200540 |
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| 摘 要： | 通过环氧乙烷氧化反应器化学钝化处理的实践,讨论了碳钢设备采用含氨柠檬酸酸洗,再用亚硝酸钠钝化的几个关键技术,钝化应严格控制亚硝酸钠加入量,pH、温度、铁离子浓度与氧离子浓度等.
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| 关 键 词： | 环氧乙烷 氧化反应器 酸洗 钝化 柠檬酸 亚硝酸钠 腐蚀 防护 |
Chemical passivating treatment in oxirane oxidizing reactor |
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| YU Cunye. Chemical passivating treatment in oxirane oxidizing reactor[J]. Cleaning World, 2009, 25(5) |
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| Authors: | YU Cunye |
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| Affiliation: | Shanghai Petrochemical Co.;Ltd.;Shanghai 200540;China |
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| Abstract: | In this paper,based on chemical passive treatment practice work in oxirane oxidizing reactor,several technical keys on carbon steel equipment cleaning by ammonia citric acid,again passivating by sodium nitrite are discussed.Passivating by sodium nitrite should strict control additive quant,pH value,temperature,serric ion concentration and chloric ion concentration etc. |
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| Keywords: | oxirane oxidizing reactor acid cleaning passivation citric acid sodium nitrite corrosion protection |
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