通过对煅烧后的白云石中所含的氧化钙和氧化镁，分别采用氯化铵溶液和硫酸铵溶液进行浸提，使其中的钙、镁得到较好的分离。
The dolomite is calcined to form the mixture of calcium oxide and magnesia, then the mixture is extracted by ammonium chloride solution and ammonium sulfate solution respectively.
以菱镁矿煅烧所得氧化镁为原料，水化制备超细氢氧化镁。
Magnesia calcined from magnesite as raw material, superfine magnesium hydroxide has been produced by hydration.
以菱镁矿为原料，经煅烧、盐酸酸化后与氢氧化钠反应合成了纳米级、片状、粒度均匀的氢氧化镁。
Magnesium hydroxide that was of nanometer level and flake shape and had uniform particle size was synthesized by calcination and hydrochloric acid-acidification and with magnesite as raw material.
研究表明：氧化镁的活性和煅烧温度、时间及氧化镁中的硼含量有关。
It shows that the calcined temperature, calcined time and boron content relate with the activity of magnesium oxide.
研究表明：氧化镁的活性和煅烧温度、时间及氧化镁中的硼含量有关。
It shows that the calcined temperature, calcined time and boron content relate with the activity of magnesium oxide.
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