公开(公告)号：UST104501I4

公开(公告)日：1984-08-07

申请号：US546261

申请日：1983-10-28

申请人： Thomas M. Jones ,  Lucian A. Kendrick, Jr.

发明人： Thomas M. Jones ,  Lucian A. Kendrick, Jr.

IPC分类号： C05B7/00

CPC分类号： C05B7/00

摘要： An improved process for the production of highly concentrated (N-P.sub.2 O.sub.5) suspension fertilizers effected by the ammoniation of wet-process or other impure orthophosphoric acids in batch-type equipment. The underlying concept which goes to the gist of the instant invention involves the use of a heel of product from a previously prepared batch to provide nuclei and a suitable environment for the conversion of the metallic impurities therein into crystalline habits rather than the usual highly undesirable form of metallic impurity gel-like compounds, which gels cause extremely high viscosities, nonpourability, and complete destruction of fluidity in concentrated ammonium phosphate suspension fertilizers prepared by prior-art procedures. Also, during the ammoniation of acids by the instant process, the heel maintained therein prevents severe thickening due to mass crystallization of monoammonium phosphate, which severe thickening normally results in either/or extremely slow further ammoniation and excessive ammonia losses. Practice of this method is simple, economical, versatile, and can be performed in readily available equipment.

公开(公告)号：US4511388A

公开(公告)日：1985-04-16

申请号：US584285

申请日：1984-02-27

申请人： Thomas M. Jones ,  Lucian A. Kendrick, Jr.

发明人： Thomas M. Jones ,  Lucian A. Kendrick, Jr.

IPC分类号： C05B7/00

CPC分类号： C05B7/00

摘要： An improved process for the production of highly concentrated (N-P.sub.2 O.sub.5) suspension fertilizers effected by the ammoniation of wet-process or other impure orthophosphoric acids in batch-type equipment. The underlying concept which goes to the gist of the instant invention involves the use of a heel of product from a previously prepared batch to provide nuclei and a suitable environment for the conversion of the metallic impurities therein into crystalline habits rather than the usual highly undesirable form of metallic impurity gel-like compounds, which gels cause extremely high viscosities, nonpourability, and complete destruction of fluidity in concentrated ammonium phosphate suspension fertilizers prepared by prior-art procedure. Also, during the ammoniation of acids by the instant process, the heel maintained therein prevents severe thickening due to mass crystallization of monoammonium phosphate, which severe thickening normally results in either/or extremely slow further ammoniation and excessive ammonia losses. Practice of this method is simple, economical, versatile, and performed in readily available equipment.

摘要翻译： 用于生产高浓缩（N-P2O5）悬浮肥料的改进方法，其通过在分批式设备中的湿法或其它不纯的正磷酸的氨化而实现。 涉及本发明要点的基本概念涉及使用来自预先制备的批料的产品的脚跟来提供细胞核和用于将金属杂质转化成晶体习惯的合适环境，而不是通常非常不期望的形式 的金属杂质凝胶状化合物，其凝胶在现有技术程序制备的浓缩磷酸铵悬浮肥料中导致极高的粘度，不可渗透性和流动性的完全破坏。 此外，在通过本发明的酸的氨化期间，保持在其中的鞋跟可以防止由于磷酸一铵的质量结晶而引起的严重的增厚，其中严重的增稠通常导致进一步氨化或非常缓慢的氨化和过量的氨损失。 这种方法的实践是简单，经济，通用，并且在易于使用的设备中进行。