梁中凹地卤水自然冷冻、日晒精制研究

Natural Freezing and Solar Evaporation Refinement of Brine in Liangzhong Concave

中文关键词:  含钾卤水  可持续  NaCl.2H2O  冷冻  日晒

英文关键词:Potassium-bearingbrine  Sustainable  NaCl·2H2O  Freezing  Solarevaporation

中文摘要:

      梁中凹地的梁十井卤水是 Na/K质量比值达到 55，KCl含量只有 0.3%的边界品位钾矿。为保证粮食安全，需要增加钾肥的续替资源。文章因地制宜，进行了冷冻、日晒结合的野外精制实验，以低温冷冻析出 NaCl.2H2O的形式去除部分氯化钠和水，继续通过日晒蒸发将卤水 Na/K值降低到 12以下，使其达到钾肥生产的原料要求。

英文摘要:

      Liang Shi Jing brine in Liangzhong concave is a cut-off-grade potash ore with Na/K mass ratio of55 and potassium content of only 0.3%. In order to ensure the food security，it is necessary to inrcrease the sustainablealternativeresourcesofpotashfertilizers.Afieldrefiningexperimentcontainingfreezingand solar evaporation was carried out according to the local conditions.As aresult，part of sodium chloride and water were removed in the form of NaCl·2H2O by low-temperature freezing，and the Na/K value of brine wasfurtherreducedtobelow 12bysolarevaporation，sothatthe finalbrine meetstheraw materialrequire-mentsforpotashfertilizerproduction.