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English Translations » 【设备腐蚀】 » Will sludge containing calcium hydroxide corrode 304 stainle

Will sludge containing calcium hydroxide corrode 304 stainless steel equipment at high temperatures?

2017-05-16 View Original

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Our sludge is neutralized using calcium carbide slag to remove the sulfuric acid present in it; after neutralization, the pH is between 11 and 12, and its main components are calcium sulfate, ferric sulfate, and calcium hydroxide. Now consider using a horizontal disk dryer to dry sludge, reducing the moisture content from 70% to 30%. The operating temperature of the disk is expected to be 200°C. May I ask, under such conditions, will the use of 304 stainless steel discs lead to calcium hydroxide corrosion or other corrosion problems?

Translated at 2026-07-21 03:37:35

Original: https://bbs.hcbbs.com/thread-1779633-1-1.html

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