公开(公告)号：US3562197A

公开(公告)日：1971-02-09

申请号：US3562197D

申请日：1968-01-26

申请人： MONSANTO CO

发明人： SEARS PAUL G ,  VANDERSALL HOWARD L

IPC分类号： D06M11/00 ,  C01B25/28 ,  C01B25/40 ,  D06M11/72 ,  C08C11/70 ,  C09D5/18 ,  C09K3/28

CPC分类号： C01B25/28 ,  C01B25/405

摘要： IMPROVED INTUMESCING COATING COMPOSITIONS ARE PREPARED BY THE USE OF A SUBSTANTIALLY WATER-INSOLUBLE AMMONIUM POLYPHOSPHATE HAVING THE FORMULA

H(N-M)+2(NH4)MPNO3N+1

WHEREIN N IS AN INTEGER HAVING AN AVERAGE VALUE GREATER THAN 10 AND M/N IS AN INTEGER HAVING AN AVERAGE VALUE GREATER AND ABOUT 1.1.

公开(公告)号：US3645675A

公开(公告)日：1972-02-29

申请号：US3645675D

申请日：1969-12-19

申请人： MONSANTO CO

发明人： SEARS PAUL G ,  VANDERSALL HOWARD L

IPC分类号： C01B25/28 ,  C01B25/40 ,  C05B13/06

CPC分类号： C05B13/06 ,  C01B25/28 ,  C01B25/405

摘要： Ammonium pyrophosphates of the formula (NH4)2 7H1 3P2O7 and (NH4)3 3H 7P2O7 are useful as intermediates in the preparation of polymeric water insoluble ammonium polyphosphates and as final products in detergent and fertilizer applications. The new ammonium pyrophosphates are prepared by condensing orthophosphoric acid with a combined ammoniating and condensing agent, e.g., urea, in a molar ratio of nitrogen to phosphorus of 1.4 to 1.75 or 2.5 to 4.0.

摘要翻译： 式（NH4）2 7H1 3P2O7和（NH4）3 3H7P2O7的焦磷酸铵可用作制备聚合水不溶性聚磷酸铵的中间体，也可用作洗涤剂和肥料应用中的最终产品。 新的焦磷酸铵通过将正磷酸与氮与磷的摩尔比为1.4至1.75或2.5至4.0的组合的氨化和缩合剂（例如尿素）进行冷凝来制备。