利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

37 条记录 (耗时 0.015 秒)

    Method and system for manufacturing ammonium phosphates
    1.
    发明授权
    Method and system for manufacturing ammonium phosphates 失效
    用于制造磷酸铵的方法和系统

    公开(公告)号：US3563723A

    公开(公告)日：1971-02-16

    申请号：US3563723D

    申请日：1969-04-02

    申请人： SACKETT & SONS CO A J

    发明人： SACKETT WALTER J SR ,  SACKETT AUGUSTUS J JR

    IPC分类号： C01B25/28 ,  C01B25/40 ,  C05B7/00

    CPC分类号： C01B25/28 ,  C01B25/405

    摘要： AN IMPROVED PLANT AND METHOD FOR MANUFACTURING AMMONIUM PHOSPHATES FROM PHOSPHORIC ACID AND AMMONIA IS DESCRIBED. THE PROCESS COMBINES THE AMMONIA WITH A DILUTED AND SOMEWHAT PRENEUTRALIZED ACID IN A PRIMARY REACTOR, THE PARTIAL PRENTUTRALIZATION BEING DONE IN A SCRUBBER SPRAYING ACID AND WATER ON COLLECTED VAPORS. THIS RECOVERS THE AMMONIA FROM VAPORS GIVEN OFF SUBSESUENTLY IN BOTH THE PRIMARY REACTOR MENTIONED AND A SUBSEQUENT SECONDARY REACTOR. THUS, IMPORTANTLY, THE SCRUBBER, NOT ONLY RECOVERS WASTE AMMONIA, BUT FEEDS IT BACK TO THE SYSTEM AND DELEVERS PRACTICALLY PURIFIED WATER VAPOR TO THE ATMOSPHERE. THE REACTIVETEMPERATURE RISE IN THE PRIMARY REACTOR IS CONTROLLED BY A THERMOSTATICALLY OPERATED WATER SUPPLY VALVE WHICH ADDS COLD WATER IN PROPORTION TO THE NEUTRALIZING ACTIVITY. THE EFFLUENT FROM THE SCRUBBER NOT ONLY IS THE REDUCED STRENGTH ACID BUT ALSO CONTAINS SOME MON-AMMONIUM PHOSPHATE. FROM THE PRIMARY REACTOR A WATER SOLUTION OF DI-AMMONIUM AND MON-AMMONIUM PHOSPHATES HAVING A DESIRABLE MOL RATIO BETWEEN 1.25 AND 1.45 IS DELIVERED TO THE SECONDARY REACTOR. SELECTED FEED-BACK PATHS ARE ARRANGED WHEREBY THE RESULTING SOLID PRODUCT CAN BE REGENERATED UNTIL ALL IS OF A DESIRED SIZE GRANULE WITH NO WASTE.

    High speed blending and loading system
    9.
    发明授权
    High speed blending and loading system 失效
    高速混合和加载系统

    公开(公告)号：US3603567A

    公开(公告)日：1971-09-07

    申请号：US3603567D

    申请日：1970-02-24

    申请人： SACKETT & SONS CO A J

    发明人： SACKETT WALTER J SR

    IPC分类号： B01F13/10 ,  B01F5/00

    CPC分类号： B01F13/1002

    摘要： A high speed blending, weighing, and loading system is provided for handling and processing of materials having two or more ingredients. This system includes a primary weigh-blend hopper having a chute for receiving materials which, if necessary, are conditioned by breaking up of lumps of material in the chute and then passed on to the primary weigh-blend hopper for weighing and blending thereof.