AK98^® HR │ The cost-effective alternative to synthetic Magnesium Oxide

AK98^® HR is a natural, high purity, calcined magnesium oxide, extremely low in impurities (low-acid insoluble) and undesirable substances. It is processed under carefully controlled conditions to give a finely divided white powder with a high and uniform reactivity index.

Main Uses & Advantages

AK98^® HR is the cost-effective alternative to synthetic Magnesium Oxide grades, having the additional advantage of a very low iron content (typical Fe₂O₃ content 0,03%).

AK98^® HR is perfectly suited to a diverse and wide range of high-end, industrial & chemical applications. These include, the manufacturing of various magnesium salts/compounds, catalysts and catalyst supports for the petrochemical industry, rubber & plastics, fuel/oil additives, high-tech ceramic formulations, pulp & paper/bleaching process and other specialties.

Certain physical properties of AK98^® HR (specific surface area/reactivity and particle size) may be adjusted to customers’ specific requirements.

Packaging & Storage

AK98^® HR is available in powder form: In big bags (800 kg for -325 mesh, 900 kg for -200 mesh product) with inner nylon and bottom spout. In 20 kg paper bags with PE-liner on pallets.

AK98^® HR has a shelf life of 12 months provided that the product is stored in a clean dry storage area under proper conditions and protected from moisture with PE-foil. Magnesium oxide rapidly attracts moisture from air and forms lumps. Always re-seal full, partly used pallets and single bags with PE-foil.

Main Properties

MgO content (Loss Free):	typ. 98,0%
Fe₂O₃ :	typ. 0,03%
ACTIVITY by citric acid method:	typ. 25-35sec.

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Recommended Applications

Fuel & Lubricant Additives

MgO is used in the production of fuel and lubricant additives and specifically in the production of over-based magnesium sulphonates and carboxylates

Rubber & Plastics

MgO is used in the Rubber and Plastic applications as an acid scavenger, scorch retarder or curing agent during the cross linking of several rubber compounds containing halogens or nitrile groups.

Pulp & Paper

Magnesium oxide and magnesium hydroxide are used in the sulfite pulping process in order to remove lignin from the cellulose matrix or as an Mg-ion source for the oxygen bleaching procedure. MgO and MgOH2 are also used as a peroxide stabilizer in hydrogen peroxide pulp bleaching.

Catalyst produced with addition of magnesium oxide

Catalysts

MgO can also be used as a catalyst in the emulsifier industry for the trans-esterification of glycerides, and for catalytic transfer hydrogenolysis (e.g., keton reduction to alcohols) in fine organic chemicals industries.

Technical Magnesium Compounds

High-quality, naturally sourced, magnesium oxide can be used as raw material for the production of technical Mg-compounds such as resinates, sulfonates, bi-sulfites, acetates, carbonates and ferrites or directly used as an anticaking agent in the food industry. More specifically:

AK98® HR │ The cost-effective alternative to synthetic Magnesium Oxide