Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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

The authoritative public forum
for Metal Finishing since 1989
-----

Removal of excess oil in acid zinc tank

April 22, 2012

Q. My name is greg, I'm an electroplater in Australia.
We have an excess oil problem in our acid zinc baths. I was wondering if there was a way of removing just the oil?
We have stepped up our pre-treatment to reduce contamination to zinc baths, and have added extra carrier to help break done the oil, but still have some oil on parts when removed from plating.

Greg Allie
plating shop employee - Geelong, Victoria, Australia

A. Hi Greg.

I think the first thing you need to determine, either by analysis or by looking at the rinse tanks preceding plating, is whether the oil is being dragged in or your plating brighteners are "oiling out". There are polypropylene non-woven mats that can be used to absorb the oil, and there are even oil separation machines (with small continuous belt and scraper system), but eliminating the problem is more promising than dealing with it. Good luck.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
April 25, 2012

(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: