Page 9 - PCMI Journal December 2021

Educational Webinar Series 2021 - 2022
March 30, 2022 - 11:00 am - 12:00 pm (EST)
Solvent Extraction of Dissolved Nickel and Chromium from Spent Ferric Chloride Etchants
Presented by:
Peter Jefferies, Innovation Technology Leader, Heatric, Division of Meggitt, UK David Allen, Emeritus Professor of Microengineering, Cranfield University, UK TBA, De Dietrich Process Systems Ltd., UK
Abstract
This webinar is being designed to be different in format from previous PCMI webinars. It is intended that this webinar will be an interactive workshop and that registered delegates will be sent a questionnaire prior to the webinar regarding company consumption of ferric chloride etchant and the volumes of etchant that require disposal over a year of etching activity.
Professor Allen will introduce the topic for the webinar and refer to research suggesting that., after etching materials such as stainless steel, the dissolved nickel and chromium can be removed from the spent etchant by the process of solvent extraction.
Dr. Jefferies will follow up by providing details of the extremely large volumes of spent ferric chloride generated within Heatric and will outline the increasing running costs involved as waste disposal costs continue to increase. He will also illustrate how solvent extraction of dissolved metals would reduce those costs and lower the environmental impact of ferric chloride waste.
After discussions with delegates on volumes of waste ferric chloride generated within their companies, an employee of De Dietrich Process Systems will show how the industrial process of solvent extraction could be used to remove nickel and chromium salts from spent etchant so that the ferric chloride can be purified for further etching in its regenerated form or sold as a useful starting material for processes such as flocculation in wastewater treatment.
It is hoped that this workshop will result in a consortium of PCM companies interested in supporting practical initiatives to explore economic methods of dissolved metal extraction from spent ferric chloride etchant.
If you are interested in purchasing any of the past webinar sessions, please contact Katie at katie@pcmi.org.
Issue 138 December 2021 PCMI Journal 9