News and Events for the Solvent Extraction Community

Welcome to the ISEC blog page where news and events of relevance to the solvent extraction community will appear. We hope this page will provide valuable information and promote discussion within the community.

Dear all,

We are happy to be able to welcome you with all our hearts to ISEC 25 in Melbourne. Please be aware that you can propose candidates for the Hanson medal and ISEC award. Details for the procedure is given in this homepage. We look forward to see you soon.

Until then, keep safe and take care

Hans-Jörg Bart (Chairman)
Christian Ekberg (Secretary)

Dear all,

Next ISEC 25 will be held in Melbourne, Australia. More details will come.

 I have to inform you that Dr. Douglas S. Flett (1936-2023) passed away on April 25th 2023. He was 86 and died at home in Stevenage, UK. He was a strong pillar in the solvent extraction field and my condolences go out to his family, friends and colleagues during this difficult time.

Yours respectfully
H.-J. Bart

Dear all,

as chairman of the ICSE (Int. Committee of Solvent Extraction) I want to focus your attention at ISEC 22 in Göteborg, Sweden (26.9.-1.10.2022). The congress scheduled at 2020 was twice delayed because of COVID-19. Vital dates and facts you can find at Also new nominations for the Carl Hanson medal and ISEC Award are possible (see and all nominations in 2020 are still valid.

I look forward to meet you at ISEC22.

Best regards

Prof. Hans-Jörg Bart

(Chairman ICSE)

Carl Hanson Medal Awarded to Geoffrey W. Stevens

Miyazaki, Japan, November 8, 2017 

Today the Carl Hanson Medal for a lifetime achievement in solvent extraction science and technology was awarded to Geoffrey W. Stevens, Laureate Professor at the Department of Chemical Engineering, The University of Melbourne.  Read more

Nomination procedure (Excerpt):

Nominations must be in writing (hard copy or electronic) and must consist of the following documents:

  • detailed description of the invention/development/application emphasizing the degree of innovation and explaining how it has impacted on the practice of SX and advanced the field;
  • documents that support the nomination and significance of the contribution;
  • document giving details of the nominee(s) and contributions to the project;
  • CV of the nominee or the team leader(s).

Nominations shall be sent to the Secretary of the International Committee not less than 8 months prior to ISEC

Read more
  • Nominations shall be made to the Secretary of the ICSE till end of September 2017.
    • Notices announcing the Award shall be placed by the ICSE Secretary in appropriate journals, e.g. Solvent Extraction and Ion Exchange, Hydrometallurgy, and web-sites. The joint sponsorship of the Award, the Society of Chemical Industry and Dechema shall also be informed and requested to include the information in their literature. It is also appropriate that notice of the Award shall be included in all literature related to the next ISEC.
  • Nominations shall be in writing and must consist of the following documents:
    • A nomination letter not to exceed 1000 words
    • Two additional letter supporting the nomination again not exceeding 1000 words
    • A summary of no more than three (3) pages outlining the nominee’s career, achievements and contributions to solvent extraction
    • A list of publications
    • Three pdf-copies of the most important contributions in the field authored by the nominee.

For further details or to suggest nominees, please contact the Secretary of the International Committee

The „International Scientific Committee” was represented by the members of the “International Committee for Solvent Extraction (ICSE)” and the “Local Organizing Committee” was represented by the members of the German ProcessNet Working Party “Extraktion” ( Both together with the “Technical Committee” reviewed the papers for the proceedings with the decision to be either in an oral or a poster session. The review forms contained the topics “Within the scope of ISEC”, “Suitable for oral”, “Maybe oral”, “Poster presentation”, “Should be rejected (Revision) and “Comment”.

The call for papers was made in September 2011 and the time schedule and flyer is also in the appendix. It was focused on nine traditional topics and three special topics (s. attachments) with the latter three in respect to the specific research interests of European industry and academia. All together brought an interesting mixture and fruitful discussions and was helpful to broaden the activities of the solvent extraction community. In respect to this it was also emphasized from the ICSE, that the topic “oil and gas” should be an issue in the next ISEC conferences.

All evaluations were overviewed by the conference chair with the individual reviewers and a task force of Read more

Press Release: Solvent Extraction Awards

Carl Hanson Medal Awarded to Yizhak Marcus

Würzburg, September 10, 2014

Today the Carl Hanson Medal for a lifetime achievement in solvent extraction science and application has been awarded to Yizhak Marcus, Professor Emeritus of Hebrew University of Jerusalem, Israel. Read more

The 20th International Solvent Extraction Conference ISEC 2014 will be held in Würzburg, Germany from 8-12 September 2014. The conference organiser’s webpage is

A flyer can be found at

The International Solvent Extraction Conferences have been and continue to be a major gathering of scientists, engineers, operators and vendors from around the world, who present new findings since the last meeting, exchange ideas, make business contacts, and conduct collegial discussions.

As to that the topics of the last 19th ISEC 2011 in Santiago, Chile, were:

  • Industrial practices and new projects
  • Hydrometallurgy and metals extractions
  • Nuclear fuel reprocessing
  • Process chemistry and engineering
  • Analytical and preparative applications
  • Biotechnology, pharmaceuticals, life science products and organic products
  • Fundamentals
  • Novel reagents, materials and techniques.

As further information is the following link to “Standard Test Systems for Liquid Extraction” recommended by the European Federation of Chemical Engineering, which is often requested: (look under literature). Read more