What material of synthesis reactor can withstand high temperatures and strong alkalis?
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The final step in the production process in the workshop is raising the temperature and adding alkali to adjust the pH value. At first, we used glass-lined reactors, but over time the enamel on them completely peeled off. Later, fiberglass reactors were tried as well, but they didn’t work either. Now we are using stainless steel reactors, yet the results aren’t very good. Could someone tell me what other suitable materials for reactors there are? Operating conditions: Temperature 105°C, strongly alkaline
Stainless steel reaction vessels can handle strong alkalis and high temperatures without issue, but proper maintenance is necessary. Enameled surfaces are generally used in acidic conditions; adjusting the pH value with alkali will not work.
Under normal circumstances, stainless steel can fully meet your requirements! ! ! Judging from your description, your requirements don’t seem too strict! ! What material have you chosen? 304? 316? 316L？ If 316L still doesn’t meet your requirements, I don’t know what else there is.
What was said on the 3rd floor is correct; stainless steel can be used without any problems in high-temperature and strong-alkaline environments. The grades, from lowest to highest, are 304, 321, 316, and 316L. The use of fiberglass reactors is strictly prohibited.
What was said upstairs is correct; 316L is fine, and carbon steel options should work as well!!
In high-temperature, strongly alkaline environments, stainless steel can be used without any problems. I’m not sure what type of stainless steel you have in mind; try using 316L and see how it performs. The use of fiberglass reactors is strictly prohibited.
Stainless steel is also quite corrosive in high-temperature and strong-alkaline environments; I’m not sure what would be better, and I hope to get a good answer
Detailed description of operating conditions: 1. Materials: sodium salt of 2,4-dichlorophenol, liquid caustic, and chloroacetic acid neutralization solution. 2. The maximum process temperature is 105 degrees, and the environment is highly alkaline.