finishing.com -- The Home Page of the Finishing Industry

HomeFAQsSuggested
Books
Help
Wanteds
Advertise
on this site
FORUM
current topics
Live! From beautiful Pine Beach New Jersey: Welcome to the world's most popular metal finishing website

topic 32663

Passivation of a pharmaceuticals production line


2004

We are a pharmaceutical company and we are going to run our new Haemodialysis Solution Plant and have a problem with passivation of the line (Nickel Chrome Tanks, GOAVEC + Titanium Pumps, GRUNDFOS + Stainless steal Pipes ) . The line keeps filled with water for about 10 months. The parts have started to show surface discolouration .

I have heard/read that the line can become passive if it is rinsed with 2% Caustic Soda then 1.5 % Nitric acid in water at room temperature? If it is, What temperature rinse would be optimum ?

Can nitric-acid passivation process make our line as corrosion resistant as S.S.316?

What are other possible passivation ? I need to know different methods

Is it like passivation of S/S ?

Why/when is it done?

How is it done?

Any references to standards, articles or published material would be greatly appreciated.

Finally, is there any recommended cleaning fluids? We would appreciate any advice on this matter.

Wael Ebied
Fresenius Medical Care - 10 th of Ramadan , Cairo, Egypt



If you have a question in mind which seems off topic, please Search the Site

ADD a Q, A, or Comment on THIS topic START an UNRELATED topicView CURRENT HOT TOPICS

Disclaimer: It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices


©1995-2019 finishing.com, Inc., Pine Beach, NJ   -   About finishing.com   -  Privacy Policy
How Google uses data when you visit this site.