利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

10 条记录 (耗时 0.012 秒)

    Low bulk density sodium polyphosphates
    2.
    发明授权
    Low bulk density sodium polyphosphates 失效
    低密度密度聚磷酸钠

    公开(公告)号：US3650685A

    公开(公告)日：1972-03-21

    申请号：US3650685D

    申请日：1969-09-12

    申请人： STAUFFER CHEMICAL CO

    发明人： DYER JAMES N ,  POST LEO B ,  ROSEN HERBERT J

    IPC分类号： C01B25/41 ,  C01B25/30 ,  C01B25/39 ,  C01B25/38

    CPC分类号： C01B25/395 ,  C01B25/308

    摘要： Sodium polyphosphates and particularly sodium tripolyphosphates which generally find use as detergent builders are prepared in low bulk density, high relatively non-frangible granular yields by spray drying an aqueous solution of monosodium/disodium orthophosphate salts having an NaO:P2O5 ratio of from 1 to 2, hydrating the spray dried product or the fines to a LOI of between about 18% and about 25% and intermolecularly dehydrating the hydrated product in a fluidized converter at a temperature of between about 200* C. and 500* C. to provide the desired product.

    摘要翻译： 通常用于洗涤剂助洗剂的多磷酸钠和特别是三聚磷酸钠通过喷雾干燥NaO:P2O5比为1至2的正/磷酸二钠/二钠水溶液，以低堆积密度，高相对不易碎的颗粒产率制备 将喷雾干燥产物或细粉水合至约18％至约25％的LOI，并在约200℃至500℃的温度下在流化转化器中使水合产物分水解脱水以提供所需的 产品。

    Process for making mixtures of sodium polyphosphates and sodium sulfate
    4.
    发明授权
    Process for making mixtures of sodium polyphosphates and sodium sulfate 失效
    制备聚磷酸钠和硫酸钠的混合物的方法

    公开(公告)号：US3684724A

    公开(公告)日：1972-08-15

    申请号：US3684724D

    申请日：1970-04-20

    申请人： STAUFFER CHEMICAL CO

    发明人： DYER JAMES N ,  POST LEO B ,  ROSEN HERBERT J

    IPC分类号： C01B25/41 ,  C11D3/00 ,  C11D3/06 ,  C01B25/38 ,  C11D7/16

    CPC分类号： C11D3/062 ,  C01B25/412 ,  C11D3/046

    摘要： MIXTURES OF SODIUM SULFATE AND SODIUM POLYPHOSPHATES, PARTICULARLY, SODIUM TRIPOLYPHOSPHATES ARE PREPARED IN LOW BULK DENSITY, HIGH RELATIVELY NON-FRANGIBLE, GRANULAR YIELDS BY SPRAY DRYING AN AQUEOUS SOLUTION OF MONOSODIUM/DISODIUM ORTHOPHOSPHATE SALTS HAVING AN NA2O:P2O5 RATIO OF FROM 1 TO 2, AND SODIUM IN COMBINATIONS OF 10% TO 90%, HYDRATING THE SPRAY DRIED PRODUCT OR THE FINES TO A LO1 OF BETWEEN ABOUT 10% AND ABOUT 50% AND INTERMOLECULARLY DEHYDRATING THE HYDRATED PRODUCT IN A FLUIDIZED CONVERTER AT A TEMPERATURE OF BETWEEN ABOUT 200*C. AND 500*C. TO PROVIDE THE DESIRED PRODUCT. THE PRODUCT OF THE PROCESS IS USEFUL AS A DETERGENT BUILDER.

    Recovery of phosphorus value from phosphorus sludge
    7.
    发明授权
    Recovery of phosphorus value from phosphorus sludge 失效
    从磷污泥中恢复磷价

    公开(公告)号：US3615218A

    公开(公告)日：1971-10-26

    申请号：US3615218D

    申请日：1968-08-05

    申请人： STAUFFER CHEMICAL CO

    发明人： POST LEO B ,  PAUL ROY E ,  CRUDUP WILLIAM R

    IPC分类号： C01B25/027 ,  C01B25/02 ,  C01B25/04

    CPC分类号： C01B25/003 ,  C01B25/01 ,  C01B25/02

    摘要： A process for recovering phosphorus values from phosphorus sludge comprising (1) mixing the sludge with from about 1 to about 8 parts by weight carbon bisulfide per part by weight phosphorus sludge; (2) agitating the mixture to a Reynolds number value of from about 2 X 105 to about 1.0 X 106 for a period of from about 0.2 minute to about 16 minutes; (3) filtering the resulting mixture to remove particulate material and thereafter recovering the phosphorus value from the carbon bisulfide fraction.