苦卤,氨法,高纯镁砂,煅烧," /> 苦卤,氨法,高纯镁砂,煅烧,"/> bittern;ammonia method;high purity magnesia;calcination,"/> Comparison of preparation technologies of high purity magnesia by limestone-bittern method and ammonia method

INORGANICCHEMICALSINDUSTRY ›› 2011, Vol. 43 ›› Issue (1): 45-47.

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Comparison of preparation technologies of high purity magnesia by limestone-bittern method and ammonia method

 ZHANG  Yi-Yong, SHI   Min, YU  Xue-Feng, HU  Cheng-Yin   

  1. (Qinghai Salt Lake Science and Technology Development Co.,Ltd.,Golumd 816000China)
  • Online:2011-01-10 Published:2011-03-17

Abstract: Process principles and techincal characteristics of preparing high purity magnesia by limestone-bittern method and ammonia method were summarized.Problems that should be paid attention to in the two processes were analyzed and a comparison between the two methods were also made.Results showed that ammonia method had a certain technical and regional superiority.Product with ideal comprehensive index could be obtained by the appropriate  control of reaction temperature and amount-of-substance ratio of magnesium to ammonia.In addition,on the premise of ensuring product performance,it′d better seek better ways to reduce the sintering temperature.

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