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Preventing corrosion in plant producing - urea
Preventing corrosion in plant producing - urea
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机译:防止工厂生产中的腐蚀-尿素
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摘要
Alloyed steel corrosion in apparatus for urea synthesis from NH3 and CO2 is prevented by the presence of small amounts, but over 4 p.p.m. (calc. on aqs. reaction solution) of a product-soluble nitrite such as NH4NO2 or NaNO2.
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机译:少量但超过4 p.p.m的存在可防止在由NH3和CO2合成尿素的设备中合金钢腐蚀。 (在反应水溶液上计算)产物可溶的亚硝酸盐如NH 4 NO 2或NaNO 2。
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