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钠利用率
相关语句
  utilization ratio of sodium
    In order to raise utilization ratio of sodium the process for manufacturing soda by amine was adopted in 1950s in which amine replaced ammonia of Solvay process.
    为提高钠利用率 ,5 0年代提出用有机胺替代氨碱法中的氨 ,称为有机胺制碱。
短句来源
    Although it could greatly increase the utilization ratio of sodium the problem of amine regeneration have not been resolved.
    它虽能显著提高钠利用率 ,但胺的再生使用一直没能解决。
短句来源
  utilization ratio of sodium
    In order to raise utilization ratio of sodium the process for manufacturing soda by amine was adopted in 1950s in which amine replaced ammonia of Solvay process.
    为提高钠利用率 ,5 0年代提出用有机胺替代氨碱法中的氨 ,称为有机胺制碱。
短句来源
    Although it could greatly increase the utilization ratio of sodium the problem of amine regeneration have not been resolved.
    它虽能显著提高钠利用率 ,但胺的再生使用一直没能解决。
短句来源
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There exist hundreds of soda lakes in Inner Mongolia Autonomous Region and other provinces of China, with their main constituents Na2CO3, NaHCO3, NaCl and Na2SO4. If the brine is processed by simple carbonization to precipitate NaHCO3 as an intermediate product and the mother liquor is discarded, the utilization of sodium will be rather low. An ammoniation-carbonation process was proposed[5], in which a large proportion of NaCl and Na2SO4 will be converted to NaHCO3 also. In addition, NH4Cl and the unreacted...

There exist hundreds of soda lakes in Inner Mongolia Autonomous Region and other provinces of China, with their main constituents Na2CO3, NaHCO3, NaCl and Na2SO4. If the brine is processed by simple carbonization to precipitate NaHCO3 as an intermediate product and the mother liquor is discarded, the utilization of sodium will be rather low. An ammoniation-carbonation process was proposed[5], in which a large proportion of NaCl and Na2SO4 will be converted to NaHCO3 also. In addition, NH4Cl and the unreacted Na2SO4 may be separated as final products from the NaHCO3 mother liquor. For the purpose of optimizing operation, the phase diagram of Na+, NH4+//HCO3-, Cl-, SO42-, H2O system at 35℃ was studied and some operating problems were discussed. The phase diagram showed that in order to raise the NaHCO3 yield, the[2NH3]/([Cl22-]+[SO42-])ratio in the ammoniated brine must be increased. Take the Dabusu Soda Lake brine as example, if the[2NH3]/([Cl22-] +[SO42-]) ratio is raised to 0.738, the sodium utilization UNa would be increased to 78.9%. But this is the limit value for [2NH3]/([Cl22-]+[SO42-]) ratio. If it is exceeded, NH4HCO3 would be precipitated together with NaHCO3.

将盐碱湖的卤水氨化,然后碳酸化,可以大大提高钠利用率.为了研究其最适条件,特研究了Na~+、NH_4~+/HCO_3~-、Cl~-、SO_4~(2-)、H_2O体系相图,并以此对如何提高钠利用率进行了讨论.

In order to raise utilization ratio of sodium the process for manufacturing soda by amine was adopted in 1950s in which amine replaced ammonia of Solvay process.Although it could greatly increase the utilization ratio of sodium the problem of amine regeneration have not been resolved.The lime distillation process for regenerating amine suggested early also produced waste liquor and residue.The electrochemical process for regenerating amine raised by early the Soviet Union not only consumed a lot of energy but...

In order to raise utilization ratio of sodium the process for manufacturing soda by amine was adopted in 1950s in which amine replaced ammonia of Solvay process.Although it could greatly increase the utilization ratio of sodium the problem of amine regeneration have not been resolved.The lime distillation process for regenerating amine suggested early also produced waste liquor and residue.The electrochemical process for regenerating amine raised by early the Soviet Union not only consumed a lot of energy but also produced chlorine which was half of that of NaHCO 3.The amine salts thermalysis process for regenerating amine raised in 1990s was of higher cost of production because the rate for manufacturing soda was controlled by the rate of thermal diffusion so that the intensity of production was limited.For resolving above problems in manufacturing soda by amine it is necessary for us to find out other new means.

为提高钠利用率 ,5 0年代提出用有机胺替代氨碱法中的氨 ,称为有机胺制碱。它虽能显著提高钠利用率 ,但胺的再生使用一直没能解决。早期提出的石灰蒸馏胺再生法 ,仍有废液废渣产生。80年代前苏联提出的电化学胺再生法 ,其实质是电化学制碱 ,不仅消耗大量电能 ,同时产生出NaHCO3一半量的氯。 90年代提出的胺盐热分解再生法 ,因制碱速度受控于气体的热扩散速度 ,使生产成本提高 ,生产强度受到限制。有机胺制碱要替代氨碱法成为胺碱法 ,需另辟新路解决上述问题

 
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