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Tecnología de filtración selectiva para recuperación de metales preciosos


Oferta Tecnológica
Una pyme francesa ha desarrollado una tecnología de filtración con selectividad extrema y alto rendimiento para aguas de proceso o residuos difíciles de tratar. La filtración de residuos industriales o aguas de proceso mediante columnas permite retener metales en su interior de forma selectiva para facilitar su recuperación. La tecnología está indicada para eliminar metales de efluentes y crea un valor a clientes que tratan con metales preciosos, como paladio, platino, rodio y oro. Se buscan socios interesados en establecer acuerdos de cooperación técnica, investigación y joint venture.


Selective filtration technology for the recovery of precious metals
A French SME specialised in production of a proprietary filtration technology with extreme selectivity and high performance for difficult-to-treat waste or process water, is looking for partners interested in technical and research cooperation. The company is also open to joint-venture.
This SME located in the Ile-de-France region produces filtration resins for industrial water treatment. By filtering industrial waste or process water through columns of the company's resin beads, metals are selectively retained inside them for an easy recovery. The clean water is then released, metal free.
It can target specific metals and remove them from a complex effluent, including concentrated acid and oxidizing solutions. This creates value for customers dealing with precious metals such as palladium, platinum, rhodium and gold. In effluents where the metals would normally be lost, the technology can recover them.
Although traditional chemical industry has been producing water filtration resins for decades, these specific resins distinguish themselves from the competition on three important aspects: selectivity, performance and resistance.
The macro-porous resin beads are very similar in physical aspect to ion-exchange resins that can be found, for example, in water softening installations. However, their chemical functionalities are very different from the readily available ion-exchangers. This is because the company uses the chemistry of phosphorus, more specifically, phosphines, to functionalise the resin beads. This unique approach leads to materials that bind transition metals very tightly via coordination chemistry mechanisms. This approach provides the technology with unique performance and selectivity skills.
The metals that the French SME targets are either toxic ones (nickel, zinc, lead, indium and gallium), the removal of which is motivated by regulation, or precious ones (platinum, palladium, rhodium, iridium and gold) : their removal is then motivated by recovery and financial gain.
Advantages and Innovations:
Although traditional chemical industry has been producing water filtration resins for decades, the resins here used distinguish themselves from their competitiors on three important aspects: selectivity, performance and resistance:
- Selectivity is the ability to pick out targeted metals from complex effluents that contains many other things, including other metals, salts or organics components.
- Performance is the ability to remove all of the targeted metal to the very last trace.
- Resistance to harsh conditions, such as acidic and oxidizing conditions so to be able to function in effluents where the competition cannot.
Whereas performance guarantees the customers with a result, selectivity ensures that the operational cost of the installation is acceptable and the resins do not saturate with unwanted material.
Stage of Development:
Already on the market
Patents granted
CommeR Statunts Regarding IPR Status:
The technology was invented in 2007 and is based on patents established at that time, with international extensions in 2009 (Europe, USA)

Partner sought

Type and Role of Partner Sought:
- Type of partner sought:
In a context of collaborative project or subcontracting, type of partners sought : precious metal refiners, engineering companies
JV agreement with companies which have a complementary technology, resins integrators, local distributors, directly end users

- Specific area of activity of the partner: precious metal refiners and surface treatment companies

- Task to be performed by the partner sought:
technology provider for resins development
resins integration into a global infrastructure available for end users joint market development of other applications (for example catalyst recovery)


Type and Size of Client:
Industry SME <= 10
Already Engaged in Trans-National Cooperation:
Languages Spoken:


Technology Keywords:
05004001 Procesos de filtración y con membranas
10003004 Reciclaje, recuperación
03008 Tecnologías mineras
10004001 Tratamiento de aguas industriales
10003009 Tratamiento de metales de tierras raras