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[MW:2940] Re: Suitable material for Spent caustic

By Materials & Welding

For spent caustic (pH > 7) and for neutralized caustic (ph 5.5 – 6.5  i.e. slightly acidic pH), LTCS A333-6 pipe material,   2 mm CA

 

When more acid is likely (i.e. for acid solution or acid + caustic mixture upstream of neutralization vessel   when neutralization is not complete), PTFE lined LTCS


Regards,


Rajavelu

 


From: l l <lkthakur2003@yahoo.com>
To: materials-welding@googlegroups.com
Sent: Sunday, 16 August, 2009 1:54:06 AM
Subject: [MW:2938] Suitable material for Spent caustic

Sir,
spent caustic trearment plant having always leakage in treated spent caustic (with pH 5 to 9 ) line , while piping  has been made by cs material , we want to replace the piping with suitable material and  low cost while line pressure is 6 kg/cm2.
kindly sugest the material with details.
 
Regards
 
Lalit Kumar




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