Purifying and transforming uranium
AREVA offers its clients a high-quality transformed product ready for enrichment using the most advanced techniques.
Conversion is one step of the fuel fabrication cycle that consists of transforming the ore concentrate into a product ready to be enriched: uranium hexafluoride (UF6).
AREVA’s COMURHEX plants carry out the conversion of ore concentrate into UF6 following a preliminary purification step. This step is intended to rid the concentrate of all its impurities.
The final delivered product is therefore compatible with the quality requirements of the most modern enrichment procedures, especially high-performance centrifuging.
AREVA also offers a range of associated services:
- Storage of ore concentrates, mines,
- UF6 container maintenance ("cylinders"): draining, cleaning, verification of various pieces, reconditioning.
Worldwide delivery capacity
- A partner and worldwide leader: with 25% of the market, AREVA, is number one in the world for uranium conversion. Clients in every region of the globe benefit from our transport services.
- A high-quality product: our purification process together with flame reactor conversionenables us to deliver a final product compatible with the most modern enrichment processes.
- We possess the only ore concentrate stock site in Europe.
- An unsurpassed delivery history, with more than 350,000 cumulative tons delivered.
Flexibility and performance
Capacity to accept all types of concentrates
Our purification procedures allow us to accept a very broad range of ore concentrates.
A complete service
We offer a conversion service, integrating the purification stage which is unique in Europe,. In addition, the proximity of our enrichment plants allows our clients to easily combine conversion and enrichment while minimizing transport.
A modern industrial tool
AREVA is investing 610 million Euros in the modernization of its two industrial sites in Pierrelatte and Malvési (France). The new procedures are at once more effective and more economic in reagents, water and energy, while at the same time emitting less waste. Water sampling will therefore be a tenth of what it was.

Field Report: Discover pragmatic examples of customer benefits
Rapport environnemental social et sociétal de COMURHEX Malvési 2010 [FR]
"Comurhex II" brochure
COMURHEX II: meeting tomorrow’s challenges
Compacting structural and technological waste processing active liquid effluents
"Georges Besse II" brochure
Rapport de sûreté nucléaire et radioprotection 2009 du site du Tricastin
"Rapport de sûreté nucléaire et radioprotection 2009 du site du Tricastin" [FR]
Fuel activities brochure
