Meanwhile,the basic theory,process,product quality and the characteristics of producing magnesium hydroxide by the method of seawater or brine with light-burnt dolomite precipitation were introduced.

This paper describes the advantage of green safety neutralizer slurry Magnesium Hydroxide material used in the environmental field,analyses simply the shortcomings of the traditional production methods and mainly introduces the basic theory,process,product quality and the characteristics of producing Magnesium Hydroxide by the method of Seawater or Brine with Light-burnt dolomite Precipitation.

Aiming at the differences of the dolomite calcination technics in the process of the pidgeon's magnesium reduction,three industrial kilns to calcine dolomite(rotary kiln,erect kiln and fluidized calcinator)are discussed,and their advantages and disadvantages,the general situation from domestic and international development respectively are compared.

By exploring the production of caustic calcined dolomite in traditionalscorch limekiln, improvement project and related technique are analyzed, as well as theperformance of caustic calcined dolomite in converter protection by slag splashing.

The light-burned dolomite lightweight internal wall block was made of dolomite flour,which was calcined at the reasonable temperature and time,and mage- slum chloride solution as main raw material,adding some admixtures and filler,was formed and cured naturally under the ordinary temperature and pressure condition.

Furthermore,at 1 280 ℃ and 1 320 ℃,the strength of bonding phase when sintered with serpentine is much higher than that with light-burned dolomite and dolomite is the worst.