Phosphoric acid is grouped as four kinds by its production method, that is agricultural grade, technical grade, food grade and semiconductor grade.
磷酸按生产方法可分为热法磷酸和湿法磷酸，按用途可分为农业级、工业级、食品级和半导体级磷酸。
High purity phosphoric acid means food grade, semiconductor grade and other high purity and high concentration phosphoric acid.
高纯磷酸是指食品级磷酸和半导体级磷酸等高纯度、高浓度的磷酸。
Production technologies of food grade calcium hydrogen phosphate such as phosphoric acid purification method, bone glue extraction method and applications are introduced in detail.
本文介绍了国内外食用磷酸钙盐的概况，详细介绍了磷酸净化法、骨胶浸取法等食品级磷酸氢钙的生产工艺以及应用情况。
Preparation method and chief process conditions of food grade calcium hydrogen phosphate from Kiln - way phosphoric acid are investigated and corresponding flow path is presented.
探讨了由窑法磷酸制备食品级磷酸氢钙的方法和主要工艺条件，提出了相应的工艺流程。
Secondly, it realizes scientific application of phosphate resources and energy saving and satisfies the demand of Chinese food-grade phosphoric acid and food-grade phosphate salts.
二是实现磷资源科学利用、节能降耗，满足我国食品级磷酸及食品级磷酸盐工业的需求；
Phosphoric aicd food grade Can be used directly in liquid, solid drinks as sour food additive, Substitute for citric acid, malic acid;
食品级磷酸可直接用于液体、固体饮料作味酸剂，可代替柠檬酸、苹果酸；
Phosphoric aicd food grade Can be used directly in liquid, solid drinks as sour food additive, Substitute for citric acid, malic acid;
食品级磷酸可直接用于液体、固体饮料作味酸剂，可代替柠檬酸、苹果酸；
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