Open/Close Mobile Menu Open/Close Mobile Menu

Magnesia

Latest News

  • Dashiqiao refractory companies switch kilns to natural gas as Tangshan establishes quality inspectorate

    Tuesday, 16 December 2014

    Replacing kiln fuel oil with natural gas will enable Dashiqiao manufacturers to produce more specification led products in a less polluting process, while a new quality control office in Tangshan will help manage the regional industry’s transition to higher value products.

  • MGX forms strategic alliances for magnesite and silica sand projects in Canada

    Thursday, 04 December 2014

    Following a strategic alliance with two TSX-V listed investors, the Canadian junior strengthens its finances to continue developing its magnesite project and enters a joint venture for a potential high-purity silica project in British Columbia, which is an opportunity to diversify its mineral portfolio.

  • First Nation groups set mining policy and rules in Canada

    Wednesday, 03 December 2014

    By developing a strict and clear mining legislation over a vast area in British Columbia, Canada, the First Nation groups aim to set mining procedures for operating exploration companies in an area hosting several industrial minerals projects, including frac sand, graphite, potash and rare earths. This action could push other groups to develop similar rules in other Canadian territories.

  • Imerys results underline commitment to ceramic proppants

    Thursday, 27 November 2014

    As a leading producer in many mineral industries, Imerys results are a good indication of the state of the market. These are strong results —with the exception of fused minerals — showing that new areas of growth, such as talc in polymers in automobiles and Li-ion batteries, are starting to affect even traditional producers.

More from Latest News

Pricing News

More from Pricing News

Features

  • Australia: End of the mining gloom?

    Wednesday, 26 November 2014

    The downturn of the global “commodities supercyle” and slowing raw material demand in China has been felt keenly in Australia’s resources sector. But while proponents of Australian mining admit the industry isn’t quite as mighty as it used to be, they say that there are still plenty of reasons to be positive Down Under, Siobhan Lismore-Scott, Editor and Laura Syrett, Prices Editor, discover.

  • Potash and barite supply tightens while fused magnesia faces overcapacity

    Wednesday, 29 October 2014

    Antimony, iodine suffer from slow China growth; Tough times continue for TiO2 pigment market; FM producers storing up trouble for the future

  • Raw materials trends in refractories

    Wednesday, 03 September 2014

    Over the last two years IM has reported on the shifting trends in the refractories industry, with China looking to reduce wastage and increase energy efficiency. Ted Dickson* explores these various trends and asks – how will this shift impact raw material supply?

  • Summer holiday for agriminerals, no break for mineral sands

    Tuesday, 29 July 2014

    Agrimineral demand recovery continues as flame retardant chemical price growth stutters; no gains in sight for mineral sands

More from Features

Market Brief

Magnesia is the term for magnesium oxide (formula: MgO). Magnesia is produced by mining and processing mainly the hard rock mineral, magnesite, which occurs in two main forms: cryptocrystalline and crystalline.

 

Rarely, magnesia may be produced from other hard rock minerals such as dolomite, brucite, huntite, and serpentinite.

 

Another commercially important source of magnesia is from chemical processing of seawater and magnesia-rich brines, which produces what is sometimes referred to as synthetic magnesia.

 

Grades produced include:

·         Crude magnesite

·         Caustic calcined magnesia (CCM)

·         Dead burned magnesia (DBM)

·         Fused magnesia (FM)

·         Magnesium compounds derived from CCM, eg. magnesium hydroxide, magnesium sulphate.

 

The source of the magnesia determines critical chemical and physical characteristics of the derived magnesia, such as MgO purity (ranges low to high, 85%-99% MgO), ratio of CaO:SiO2, bulk density, and magnesia crystal size.

 

Supply

The world’s total resource of magnesite, the main source of magnesia, is about 13bn tonnes. Six countries host 92% of this, in descending order: China (26%), North Korea (23%), Russia (21%), Slovakia (10%), Australia (7%), and Brazil (5%).

 

World magnesia production (derived from the magnesite) is about 8.5m. tpa, and is dominated by China (49%). Other leading producers include Austria, Brazil, Greece, Russia, Slovakia, Spain, and Turkey.

 

World synthetic  magnesia production (derived from seawater, brines) is about 925,000 tpa, from Brazil, Japan, Mexico, the Netherlands, Norway, Republic of Ireland, Russia, South Korea, and the USA.

 

Leading magnesia producers include:

Grecian Magnesite – Greece

Houying Group – China

Kumas-Kuthaya Magnesite Works Corp. – Turkey

Magnesita Refratarios – Brazil

Magnezit Group – Russia

Martin Marietta Magnesia Specialties – USA

Nedmag Industries Mining & Manufacturing – Netherlands

Queensland Magnesia – Australia

SMZ Jelsava – Slovakia

Ube Material Industries – Japan

 

Markets

Each end use requires different specifications of the preferred magnesia form, so there are many different grades of magnesia on the market. Certain magnesite deposits are better suited to produce certain magnesia grades than others.

 

Crude magnesite: agriculture, glass and ceramics.

 

CCM: agriculture; environment; cement; abrasive binder; pulp and paper; fillers; feedstock for DBM, FM, and magnesium compound production.

 

DBM: refractories.

 

FM: refractories; steel coatings; ceramics.