Material Selection for Tank holding 40 weight% NaOH at 250 degrees
Material Selection for Tank holding 40 weight% NaOH at 250 degrees
(OP)
Hello,
I am currently having trouble finding information on material selection for a tank, which will hold caustic NaOH solution (40 weight%) at 250 degrees celsuis.
Can anyone help me with ideas or locations of where information can be obtained?
Many thanks
DSymes
I am currently having trouble finding information on material selection for a tank, which will hold caustic NaOH solution (40 weight%) at 250 degrees celsuis.
Can anyone help me with ideas or locations of where information can be obtained?
Many thanks
DSymes





RE: Material Selection for Tank holding 40 weight% NaOH at 250 degrees
You might want to check this as a source. I am not sure that the data will go hot enough.
How high of a pressure is this? This isn't a tank, it is a pressure vessel.
At this temp you are into fairly exotic materials.
I could talk to you about heat exchanger alloys, but the vessel will be another issue.
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Plymouth Tube
RE: Material Selection for Tank holding 40 weight% NaOH at 250 degrees
My idea was to have a holding tank of NaOH 40 weight% solution and pump it through a heat exchanger to a vessel where the solution would leach a ceramic core out of a single crystal alloy.
Another method could use an autoclave to achieve this, but what I am not sure about is the materials I could use for vessel and pipes that will be non-corrosive to NaOH at these temperatures and pressures?
DSymes
RE: Material Selection for Tank holding 40 weight% NaOH at 250 degrees
Alloy Selection for Caustic Soda Service
http://
or also at this @ pag 28
http
hope this help u
S
Corrosion Prevention & Corrosion Control
RE: Material Selection for Tank holding 40 weight% NaOH at 250 degrees
You are probably up into temperatures where nickel (pure nickel - Ni 100) is the only workable material.
The temperature exceeds the capability of plastics like Teflon for a lining of a steel vessel. Nickel lining on steel might be considered? How large is reactor vessel?
RE: Material Selection for Tank holding 40 weight% NaOH at 250 degrees
Thank you for your time
DSymes
RE: Material Selection for Tank holding 40 weight% NaOH at 250 degrees
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Plymouth Tube