Froth Flotation (Sulphide & Oxide)

Froth Flotation (Sulphide & Oxide)

  • To participate in the 911Metallurgist Forums, be sure to JOINLOGIN
  • Use Add New Topic to ask a New Question/Discussion about Flotation.
  • OR Select a Topic that Interests you.
  • Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent).
    Using Add Reply allows you to Attach Images or PDF files and provide a more complete input.
  • Use Add Comment = to comment on someone else’s Reply in an already active Topic/Discussion.

Sulphuric Acid Resistant Aloy/material That can also produce heat upto 300F (1 reply)

W
waleed
3 months ago
waleed 3 months ago

Dear All,

Can any one suggest me best alloy/Material that can be used in 60% concentrated sulphuric acid and sustain at 300-500 F temperature..?

our Industry Purpose,

usage of hot oil in tubes of that material to generate heat, this tube will be dipped in sulphuric acid solution for evaporation purpose. 

we have already used SS 316L, but this alloy get corrosion after 50% of concentration at 150F temperature. 

in Attached Pics you can see SS tubes used for above stated purpose. 

Capture
https://www.911metallurgist.com/wp-content/uploads/2021/01/Capture.png
J
Jorge
3 months ago
Jorge 3 months ago
1 like by David

I think you can evaluate the potential application 904L stainless steel, which is a super-austenitic stainless steel. This kind of steel includes the presence of copper to greatly improved resistance to strong acids, such as sulphuric acid and phosphoric acid. It is important to keep in mind that diluted solution of sulphuric acid is more aggressive than concentrated sulphuric acid.

Other alternative is to use tantalum, whose properties provide extreme corrosion resistant in aggressive media such hot sulphuric acid solution. This material should not be used  with hydrofluoric acid.

Obviously, it is important to perform some corrosion tests to take a decision.

Please join and login to participate and leave a comment.