Aloha, fun & authoritative answers -- no cost, no registration, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Where the
world gathers for metal finishing
Q&As since 1989

-----

Sodium Sulphate deposits in heat exchanger made out of Nickel Plate

I work in the Chemical Company that manufactures bleach.
Over couple of months there has been sulphate deposits in the heat exchanger made out of nickel plates. The use of the heat exchanger was to get the caustic to cool down to low temp of 80 F. Every two weeks we are having to clean up the exchangers because of the deposits of sulphate. Is there any way to trap sulphate before it gets to heat exchanger ?

Ram Prasad
chemist - Texas
July 22, 2010

July 27, 2010

Calcium sulphate fouling of heat exchangers is common on heating coils, but I haven't heard of it on a cooling coil before.

Try to identify the cation in the sulphate scale. Maybe you can eliminate the scale by eliminating it.

Lyle Kirman
consultant - Cleveland Heights, Ohio

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully 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 might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: