化学工程Issue(8)：76-78,3.DOI:10.3969/j.issn.1005-9954.2014.08.016
氟硅酸法制无水氟化氢铵新工艺
New process of preparing anhydrous hydrogen fluoride ammonium by fluorosilicic acid
徐欢 1安涛 1刘烨 1李国庭1
作者信息
- 1. 河北科技大学 化学与制药工程学院，河北 石家庄 050080
- 折叠
摘要
Abstract
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.关键词
氨水/氟硅酸/无水氟化氢铵/新工艺Key words
ammonia water/fluorosilicic acid/anhydrous hydrogen fluoride ammonium/new process分类
化学化工引用本文复制引用
徐欢,安涛,刘烨,李国庭..氟硅酸法制无水氟化氢铵新工艺[J].化学工程,2014,(8):76-78,3.
