Mineral Processing Technology

ION4RAW was mentioned in February 2022 Issue of “Mines et Carrières” Following SIM Congress.

Following the SIM Congress of November 2021, an issue of “Mines et Carrières” was released earlier this year named “RÉSILIENCE DE L’INDUSTRIE MINÉRALE APRÈS LA CRISE SANITAIRE” which focuses on the impact the pandemic has had on the mining industry, the weaknesses revealed, and the strengths needed going forward.

This issue indeed stresses the fact that ”The organisation of production and the markets for mineral raw materials have been disrupted by the long pandemic of Covid-19. The price of raw materials was no longer the only decisive factor. The mineral industry has had to look for solutions. Just like the administrations and the various governing bodies, they have adapted and had to learn the lessons of this new “normality”.”

Among the solutions developed, the ION4RAW project and the research it conducts has been mentioned  as a relevant innovative process allowing to extract and recover unexploited small auxiliary metals from ore and mine tailings.

To discover the full article!

Mineral Processing Technology

ION4RAW At the 2022 PDAC Convention

For the first time since the beginning of the pandemic, the PDAC 2022 Convention was held in Toronto, Canada and welcomed 17,445 investors, analysts, Indigenous leaders, mining executives, geologists, government officials and students.

This was an opportunity for the ION4RAW project to present its progress and the activities carried out in Europe. Flyers and the second edition of the newsletter were distributed at the European Booth during the event. It was also an opportunity for ION4RAW representatives (BRGM) present on site to answer the questions of curious geologists on the matter of European resources and predictivity activities. Reports available on the ION4RAW website were, for instance, shared.

Using the KAYO device, BRGM was able to show reports and figures from the project. Agnico-Eagle, Element08 (consortium of research on CRM in Quebec), Quebec government as well as Eramet and CGG were very enthusiastic about the work done through specifically the deliverable D2.1 “mapping of by-products potential in mineral deposits”.

To further discover the ION4RAW inventory, check out the full presentation here!

Mineral Processing Technology

ION4RAW Participation in the EWLA2022 – Presentation of the Inventory of by-products and critical raw materials.

From 12-15 July 2022, the University of Bern hosted the 15th edition of the European Workshop on Laser Ablation (EWLA2022) organised in Bern, Switzerland. The event was the occasion to discuss results, novel concepts and developments in laser ablation-based techniques in the context of sustainable by-product and Critical Raw Materials (CRM) recovery as well as to stimulate interaction between academia and industry.

Lectures, talks, workshops, and poster presentations were presented on the following topics:

 Fundamental research:

  • Laser-matter interaction
  • Particle formation and transport phenomena
  • Qualitative and quantitative element and isotope mapping (2D and 3D)
  • Standardisation
  • Isotope ratio analysis
  • Data processing and management
  • Chemical depth profiling
  • Simultaneous tandem and/or multi sensor techniques


  • Earth, Geology, and Planetary Sciences
  • Bio imaging & Life Sciences
  • Archaeology & Cultural Heritage
  • Material Sciences and Industrial Applications

Among the topics presented during the event, Catherine Lerouge, as a member of the ION4RAW project, introduced the “Inventory of by-products and critical raw materials in the El Porvenir Pb-Zn and Cerro Lindo ore deposits: laser ablation ICP-MS and electron microprobe”

The objectives of the inventory are to improve the recovery of by products and CRM during the ore treatment processes, to obtain reliable estimates of by products and CRM and to develop ionometallurgy processes. By supporting and encouraging the recovery of by-product and CRMs, we are able to improve the knowledge of target deposits as well as characterize ores by determining carrier minerals and their distribution.

To further discover the ION4RAW inventory, check out the full presentation here!

Mineral Processing Technology

ION4RAW at the French national network PROMETHEE

Our ION4RAW partner BRGM presented the ION4RAW process to French national experts during the Scientific days of the PROMETHEE network.

The French national network GDR PROMETHEE was created in 2016 in order to structure the French research on the hydrometallurgical processes for a better management of the non-energetic raw material from mining activities and recycling, and more especially low-grade resources. This network gathers 30 laboratories from the French National Centre for Scientific Research (CNRS), Atomic Energy Commission (CEA) and the Bureau of Geological and Mining Research (BRGM), partner of the ION4RAW project.

Scientific days are organized annually by the GdR PROMETHEE, and are open to researchers, engineers, PhD and pos-doctoral students from the academic and industry network, experts in the field of non-energetic raw material management.

This year, our ION4RAW partner BRGM seize the chance of having such a scientific pool of experts to present the ION4RAW project with a presentation « Premiers essais d’évaluation de la disponibilité des éléments traces CRM dans les minerais aurifères et cuprifères européens pour la récupération par ionométallurgie ». The presentation is available online here.

Attendees were interested to learn more on the hydroprocess and know the reagent tested for DES and lixiviation by WP4 but as it is confidential, they were invited to contact the coordinator of the project (Maria Tripiana from Idener) as well as Tecnalia and Sintef for available details and to follow the project newsletter and following publications.

Discussions with external stakeholders will follow this very fruitful event!


Mineral Processing Technology

New scientific article published on Hydrometallurgy

As part of the ION4RAW project, a new scientific article on hydrometallurgy was recently published and focuses on a particle-based approach to predict the success and selectivity of leaching processes using ethaline. Discover this Comparison of simulated and experimental results.

Encouraged by the need for ecologically and economically sustainable technologies for the recovery of metals from complex raw materials, ionometallurgical leaching using deep eutectic solvents is emerging as a promising alternative to conventional hydro- and pyrometallurgical process routes. Current approaches of studying leaching processes do not provide a mineral-based understanding of the leaching process – thus limiting the opportunities for process optimization.

This study addresses this shortcoming by combining laboratory-based X- ray computed tomography (CT) and scanning electron microscopy-based image analysis. The latter method provides precise information on the mineralogy and texture of the leach feed material, whereas CT is used to observe the progress of the leaching process through time. Leaching of Au–Ag bearing sulfide flotation concentrate by the deep eutectic solvent ethaline with iodine as oxidizing agent is used as a relevant case study. Results show that time-lapse CT provides an accurate estimation of the dissolution rate of pyrite, chalcopyrite, galena, telluride minerals and gold.

Dissolution rates were used to simulate the metal recoveries from the sulfide concentrate as a function of leaching time. Simulation results are within 5% variation of metal recoveries obtained by batch leaching experiments. The developed workflow can be easily transferred to other ore types or mineral concentrates; results may be used to study and optimize industrial leaching processes.

Discover the full article here and many more here.

Many thanks to the authors of this article: Chandra Widyananda Winardhia, Jose Ricardo da Assuncao Godinhoa, Cindytami Rachmawatia and Jens Gutzmer from Helmholtz Zentrum-Dresden Rossendorf, Helmholtz Institute Freiberg for Resource Technology, Isabelle Duhamel Achinb from the Bureau de Recherches Géologiques et Minières (BRGM), Ainhoa Unzurrunzaga Iturbec  from Fundacion Tecnalia Research and Innovation, Paseo Mikeletegi 2, and Gero Frischd from the Institut für Anorganische Chemie, Technische Universit ̈at Bergakademie Freiber.

By Products Critical Raw Materials Mineral Processing Technology

A look back on our Clustering event

Let’s look back on our clustering event. Organized on 11 May 2022, along with PEACOCCROCODILE and TARANTULA, the event focused its discussion on The use of ionic liquids (IL) and Deep Eutectic Solvents (DES) for metal recovery. Challenges and opportunities in research and development for the recycling and recovery of metals considered critical using ionic liquids (IL) and deep eutectic solvents (DES) were thoroughly discussed.

The recycling of critical raw materials has become an important argument for the European Commission in the fight against resource vulnerability. Securing an alternative to mining such critical materials is thus necessary, which we discussed with our partners of PEACOC, CROCODILE and TARANTULA

“IL and DES can replace the usually toxic and flammable organic solvents, reduce chemical waste and improve the safety of chemical processes and products [1]. Moreover, they may offer potential as an environmentally sustainable alternative to conventional separation processes – involving the use of aqueous acids or organic solvents- in particular due to their characteristics: low volatility, high thermal stability, low vapor pressure […]”

Discover the full discussion here: PEACOC – How is Research and Development supporting Europe’s leadership in metal recovery?

Watch the recording of the workshop here:

Several researchers from each project discussed solutions and innovative ways to recycle such materials. You can discover their presentations here:


The ION4RAW, CROCODILE, TARANTULA, and PEACOC projects have received funding from the European Union’s EU Framework Programme for Research and Innovation Horizon 2020 under Grant Agreement No 815748 (ION4RAW – ion4raw.eu), GA No 776473  (CROCODILE – h2020-crocodile.eu), GA No 821159 (TARANTULA – h2020-tarantula.eu), GA No 958302 (PEACOC –peacoc-h2020.eu).

Sustainable Ionometallurgy

ION4RAW Online Clustering Workshop on The use of Deep Eutectic Solvents and Ionic Liquids for metal recovery

Join the online clustering workshop on ‘’The use of Deep Eutectic Solvents and Ionic Liquids for metal recovery’’, organized by 4 H2020 projects in the circular economy (ION4RAW, CROCODILE, TARANTULA, PEACOC)!

Our clustering workshop scheduled for May 11th, 2022 is coming soon!

On May 11th, 2022, ION4RAW together with CROCODILE, TARANTULA, PEACOC will organize a clustering event titled:  ‘’The use of Deep Eutectic Solvents and Ionic Liquids for metal recovery’’. The event brings together top research organizations as well as industrial partners to present the project results and the latest technological innovations using Deep Eutectic Solvents and Ionic Liquids for metal recovery.

Register here!


About the event

The aim of the clustering event on Deep Eutectic Solvents and Ionic Liquids for separation and recovery of metals is to share and discuss the latest R&D results as well as challenges and opportunities at industrial level for the separation and recovery of metals.

Ionic liquids and deep eutectic solvents are exciting classes of solvents that possess unique properties. Ionic liquids are known for their negligible vapor pressure, wide liquid range, tunable solvating power, and high thermal stability. DES are a new type of green solvents and most of them are even biodegradable. Ionic liquids and deep eutectic solvents can replace the usually toxic and flammable organic solvents, reduce chemical waste and improve the safety of chemical processes and products[1]. Moreover, they may offer potential as an environmentally sustainable alternative to conventional separation processes involving the use of aqueous acids or organic solvents. Due to these special properties, they have found a wide range of applications in fields, including hydrometallurgy. Ionic liquids and deep eutectic solvents can provide novel intensified separation and purification technologies that enable major contributions towards establishing the sustainable processes required for the future process industry.


The clustering event will take place online on May 11th, 2022 from 9.00 to 12.15h CET. More than 7 speakers from top research and technology organizations and business will take part in the event. The workshop program is broken down into three sessions:

  • The use of Deep Eutectic Solvents and Ionic Liquids in the context of EU-funded R&D projects (ION4RAW, PEACOC, TARANTULA, CROCODILE)
  • The use of Deep Eutectic Solvents and Ionic Liquids at industrial level
  • Panel discussion on the challenges and opportunities for the use of Deep Eutectic Solvents and Ionic Liquids


If you are interested in the topics of recycling, metals and innovation, this event is just for you. Reserve your online ticket here!


The ION4RAW, CROCODILE, TARANTULA, and PEACOC projects have received funding from the European Union’s EU Framework Programme for Research and Innovation Horizon 2020 under Grant Agreement No 815748 (ION4RAW – ion4raw.eu), GA No 776473  (CROCODILE – h2020-crocodile.eu), GA No 821159 (TARANTULA – h2020-tarantula.eu), GA No 958302 (PEACOC –peacoc-h2020.eu).


[1] Freemantle, M. (2010). An introduction to ionic liquids. Royal Society of chemistry.

Mineral Processing Technology

ION4RAW at the 2021 SIM exhibition

ION4RAW was present during the 70th edition of the annual Congress-Exposition of the Mineral Industry Society (SIM) in Lille (North of France).

The event, which took place from the 19th to the 22nd of October 2021, gathered 340 professional exhibitors as well as over 400 visitors. It brought together miners, extractive industry operators, stakeholders, R&D researchers and civil society (journalists and NGO’s). For ION4RAW partners, it was a great chance to present the project as well as to learn from other innovative initiatives.

Indeed, on the 21ST of October, the French’s Public Institution for Earth Science applications, the Geological Survey (Bureau de recherches géologiques et minières – BRGM) presented a technical conference on the mineral industry. Hosted by its Regional Director Isabelle Duhamel-Achin, it discussed challenges around critical raw materials (CMRs) in France and Europe, as well as the resilience of the mineral industry after the pandemic. For three days, the BRGM also held an exposition booth. Finally, an abstract of Mines & Carrières’ Special Issue has been presented. For more information and detail about the Congress and its topics, head over to the SIM website and have a look at the official SIM 2021 video here



Critical Raw Materials

The ION4RAW second newsletter is out!

We are delighted to announce that we have recently published our second newsletter. The newsletter is published annualy and highlights the latest news and developments in the ION4RAW project. It includes relevant meetings, publications and also information about the current work of each work package and how you might be able to get involved.

If you would like to receive our newsletter direct to your inbox,


Raw Materials

Discover the ION4RAW targeted elements and what they are used for

During Spring 2021, ION4RAW conducted a social media campaign to put the spotlight on the elements targeted in the project. A specific focus on their role in our everyday life and in a wide range of industries, from aerospace to energy production, semiconductors production, jewellery, or even healthcare.

Find out more about the use of these elements and their key role for the achievement of the European Green Deal and of a transition to a sustainable future.







Posts navigation