AK98® VHR │ For superior performance in hydrometallurgy

AK98® VHR is a high purity, highly reactive calcined magnesium oxide, produced under closely controlled conditions to give a finely divided powder with consistent and uniform reactivity.

AK98® VHR is successfully used by several leading mining & metals companies around the world to precipitate the hydroxides of metals such as nickel (Ni), cobalt (Co) & uranium (U) from acid leachate solutions of their respective ores.

AK98® VHR is the most cost-effective and best performing solution for the modern metallurgist, and here is why:

Main Uses & Advantages

AK98® VHR has been demonstrated to improve both the manufacturing process and the end-product quality, matching the performance of costly, top-end, synthetic grades, while exhibiting enhanced performance over other - similarly priced - natural MgO benchmark grades.

Are you looking for a higher metal recovery? Lower MgO consumption? Higher precipitated product purity? You got it! │ AK98® VHR is indeed the most cost-effective product in the market.

The list of companies using AK98® VHR continues to grow in every continent. Next to quality and performance, they also look for price stability, just-in-time delivery and supply chain security; we have built our reputation on these services for decades.

In addition, AK98® VHR exhibits significant advantages over other alkaline reagents such as NaOH, Na2CO3 and CaO and is non-dangerous, non-corrosive and therefore safe to handle and ingest.

Packaging & Storage

AK98® VHR is available in powder form: In big bags of 900kg with inner nylon and bottom spout.

AK98® VHR has a shelf life of 12 months provided that the product is stored in a clean dry storage area under proper conditions. Magnesium oxide absorbs moisture from the air and forms lumps. Always re-seal partly used bags.

Main Properties
MgO content (Loss Free): typ. 98,0%
ACTIVITY by citric acid method: typ. 15sec.

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Email: info@grecianmagnesite.gr

Recommended Applications


Hydrometallurgy is a technique within the field of extractive metallurgy involving the use of aqueous chemistry for the recovery of metals from ores. It involves the implementation of several production stages, the final of which involves metal recovery from leachate solutions of the ore.


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