CAJ | 학술논문

氟硅酸是湿法生产磷肥的副产品。以氟硅酸为原料，反应生成无水氟化氢铵。通过单因素实验得出反应的最佳工艺条件：n（氟硅酸）∶n（氨水）＝1．0∶6．0，采用质量分数为20％的氨水；氨解反应后的氟化铵溶液经氢氟酸酸化、浓缩、结晶制得无水氟化氢铵产品。在此条件下制备的无水氟化氢铵产品质量分数达到98％，符合优等品行业标准要求。新工艺具有良好的经济效益和环保效益，且生产成本低廉。
불규산시습법생산린비적부산품。이불규산위원료，반응생성무수불화경안。통과단인소실험득출반응적최가공예조건：n（불규산）∶n（안수）＝1．0∶6．0，채용질량분수위20％적안수；안해반응후적불화안용액경경불산산화、농축、결정제득무수불화경안산품。재차조건하제비적무수불화경안산품질량분수체도98％，부합우등품행업표준요구。신공예구유량호적경제효익화배보효익，차생산성본저렴。
As a by-product in the production of phosphate fertilizer,fluosilicic acid reacts with ammonia to produce anhydrous hydrogen fluoride ammonium.The optimum process conditions of reaction through the single-factor experiment were as follows:the mole ratio of fluosilicic acid to ammonia water was 1.0∶6.0,with the mass fraction 20% of ammonia as the material.Anhydrous hydrogen fluoride ammonium was obtained through hydrofluoric acid acidification concentration and crystallization to ammonium fluoride solution which was got after the ammonolysis reaction.Under these conditions,the generated ammonium hydrogen fluoride has a mass fraction of 98%, conforming to the industry standard requirements.The new technology has not only the good economic and environmental benefits,but also the low production cost.