Clean-iX® for Metals Recovery

Clean-iX® for Metals Recovery enables highly-efficient and cost-effective extraction, concentration and separation processes, using the principles of continuous counter-current ion exchange. Developed by Multotec’s Australian partner Clean TeQ, Clean-iX® is built on the foundations of continuous ion exchange technology.

Used in the industry for over 50 years, it is recognised worldwide as extremely efficient in recovering, gold, uranium, rare earths and base metals, among others. The Clean-iX for metals recovery offers the following benefits:

  • increased metal concentration and purity
  • high solids handling capability
  • maximum resin performance and selectivity
  • minimal reagent consumption
  • reduced number of process steps


View our Technical Resources to learn about the technology behind our metals recovery solutionsLearn more

Our Metals Recovery solutions:

CleanTEQ Water Bioclens®

Achieve your target of ammonia &/or nitrate wastewater concentrations with CLEANTEQ Water BIOCLENS® solutions from Multotec.

CleanTEQ Water Bionex™

Bionex from CleanTEQ, distributed by Multotec, is ideal when high water recovery is required and when nitrate levels <1 ppm is required.

Clean-iX® for Gold

Clean-iX® for Gold

Multotec Clean-iX® for gold facilitates cost-effective gold recovery and can be used to recover multiple products from tailings.

Clean-iX® for Uranium

Clean-iX® for Uranium

Clean-iX® enables cost-effective recovery of uranium. Clean-iX® can be used with both alkaline and acidic leach reagents.

Clean-iX® for Rare Earths

Clean-iX® for Rare Earths

Clean-iX® for rare earth elements reduces the number of process steps and has proven recovery rates of 90% and higher.

Clean-iX® for Base Metals

Clean-iX® for Base Metals

Clean-iX® from Multotec provides a cost-effective method for recovering base metals and converting them into saleable products.

Clean IX® for Metals Recovery
Clean IX® Process
Clean-iX® for Gold
Clean-iX® for Uranium
Clean-iX® for Rare Earths
Clean-iX® for Base Metals
Fines recovery is enabled with Clean-iX. Filtration equipment for these processes are supplied by Multotec.

Multotec’s Clean-iX® economic benefits

Many valuable metals can be more effectively recovered through continuous ion exchange when compared to conventional recovery routes. Clean-iX® offers the following advantages:

  • Higher resource recovery rates
  • Lower costs
  • Lower environmental impact

Ideal for a wide range of metals recovery applications:

Clean-iX® is used to recover the following metals:

Precious Metals
  • Gold
  • Silver
Platinum Group Metals
  • Platinum
  • Palladium
  • Rhodium
  • Iridium
Base Metals
  • Copper
  • Nickel
  • Cobalt
  • Zinc
Rare Earth Elements
  • Light (LRE)
  • Medium (MRE)
  • Heavy (HRE)
Speciality Metals
  • Scandium
  • Vanadium
  • Niobium
  • Tantalum
  • Uranium
  • Titanium
  • Zirconium



Modular, mobile and skid-mounted Clean-iX® products available

The modular full-scale and mobile Clean-iX® range for metals recovery consists of continuous resinin-
pulp (cRIP), continuous resin-in-leach (cRIL) and continuous liquid extraction (cLX) to recover ionic
species from feed solutions, as well as U-Column concentration desorption for the production of
high purity eluate.

  • cLX – for extraction from clarified leach solutions
  • cRIP – for extraction from leached pulp
  • cRIL – to reduce leaching reagents
  • U-Column Elution (patented by Clean-TeQ’s) for the production of a high purity eluate

Global presence. Local expertise. Technically advanced products.

Metal Extraction (adsorption)

Clean-IX® technology can be applied to clarified solutions and process slurries in mining applications.
For slurries and pulps, Continuous Resin-In-Pulp (cRIP) enables the elimination of large solid-liquid
separation circuits, reducing a plant’s capital and operating costs considerably.

Continuous Resin-In-Leach (cRIL), for leached slurries, combines leaching and extraction into a single
stage. This process can significantly improve overall metal recovery and minimise the size of
leaching/extraction circuits.

Elution (stripping or desorption)

The Clean-iX® elution systems use a series of moving packed bed columns, each one performing a
different step. Using individual columns for each unit process allows each column to be specifically
designed for that function. There are two column types for elution, which are:

  • Straight Column Elution: This utilises the moving packed bed column. Product solutions produced using this process are of higher concentration and purity than conventional batch/carousel technologies.

  • U-Column (Concentration Desorption) Elution: Clean TeQ’s patented U-Column technology allows for concentration of the target metal in-column to produce a product eluate. The result is a much higher concentration and purity than any other available elution technology. Additional benefits are that all unit processes downstream of elution can be reduced in size and there is a large overall reduction in the consumption of chemicals used.

Pilot Work - Multotec has invested in a 1 m³/h two-stage test rig which is available for piloting the Clean-iX® technology.

Reduce your environmental impact from metals recovery with Clean-iX®.
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