Can fiberglass withstand organic solvents such as methyl chlorides in 31% hydrochloric acid?
Thread Content
I would like to ask everyone: The current 31% hydrochloric acid solution contains organic solvents such as chloromethane, dichloromethane, trichloromethane, and carbon tetrachloride, at concentrations of less than 5%. Dear experts, which type of resin is suitable for fiberglass storage tanks? What is the specific resin grade? Thank you!
A 31% hydrochloric acid solution contains organic solvents such as chloromethane, dichloromethane, trichloromethane, and carbon tetrachloride, in concentrations of less than 5%. Well, no resin can withstand the corrosion caused by chlorides at such concentrations! Suggestions: First, find ways to significantly reduce the chloride content to below 5% (are you not concerned about increased costs?) ), secondly, using a steel-lined PTFE storage tank directly solves the problem (though the cost is quite high): lol
Still the same question: temperature, pressure, design life?
Fiberglass tanks are resistant to hydrochloric acid corrosion in this province; they simply cannot withstand pressure. Since there are gases present at atmospheric pressure in your chloride environment, pressure will be generated. Check if there is air defense.
If organic solvents are involved, don’t consider fiberglass – any error in the percentage of solvents used increases the risk of corrosion!
Why make it so mysterious and not let anyone see it? Fiberglass is a type of cross-linked polymer, and it has strong resistance to organic solvents; with the right resin chosen, there should be no problems.
I can’t see any replies to the post made by LZ; let’s communicate with each other. As far as I know, hydrochloric acid of any concentration does not corrode fiberglass at room temperature, and those four organic solvents also do not cause corrosion in temperatures ranging from 0 to 100 degrees. But I’m not sure about mixed acids. Also, what is the temperature of the medium used by LZ?
Why are the previous replies only visible to the author?