Deadburned magnesia (DBM), also known as 'sinter' and, in the Far East, 'clinker' magnesia, has recently seen a trend towards consolidation in DBM production, with refractory producers worrying about securing captive DBM sources, as well as highlighting the need for DBM producers to develop higher grades to meet the stringent requirements of refractory producers. The sources of DBM are either natural or synthetic. Most natural DBM is made directly from sintering magnesium carbonate (MgCO[subscript]3 ) in rotary furnaces - the production method used by Slovenske Magnezitove Zarody (SMZ), Grecian Magnesite, Magnesitas Navarras and Kumas; or in shaft kilns, the route used in China,and by Magnesita, Ma'aden and Kumas's Bommag.
In Q1 2014, Asia produced 274m tonnes of crude steel, an increase of 2.6% over Q1 2013. The EU produced 43.8m tonnes of crude steel in Q1 2014, up by 6.7% compared to Q1 2013. North America's crude steel production in Q1 2014 was 29.9m tonnes, an increase 0.8% compared to Q1 2013. The CIS produced 26.3m tonnes of crude steel in Q1 2014, a decrease of 2.8% over Q1 2013.
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