• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Process and device for the preparation of a product containing ammonium orthophosphate, and product obtained by this process. Phosphoric acid and gaseous ammonia are put together by means of a two-phase spraying device A provided with two coaxial ducts 1 and 2 through the outer one 1 of which the ammonia and through the inner one 2 of which the phosphoric acid is passed. The axial outflow rate of the phosphoric acid from the spraying device is from 1-10 m/sec. the axial outflow rate of the ammonia therefrom is from 200-1000 m/sec. (N.T.P.) and the two flows are discharged within a cylindrical reaction zone B which is coaxial with the spraying device and has a diameter D of 2-4 times the diameter of the outer ammonia discharge durt of the spraying device and a length of 10-25 times said diameter D. The reaction zone debouches in a collecting space. A homogeneous product substantially free of ammonium polyphosphate is obtained.
    公开号:SU1047387A3
    申请号:SU792771851
    申请日:1979-06-01
    公开日:1983-10-07
    发明作者:Франсискус Альфонсус Мария Хендрикс Петрус；Жозефус Мари Жансен Адрианус；Бонно Ван Ден Берг Виллем；Хук Корнелис
    申请人:Уни Ван Кунстместфабрикен Б.В.(Фирма)；
    IPC主号:
    专利说明:

    4 h |
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    00 3 The invention relates to a process for the preparation of ammonium phosphate used for the production of fertilizers. Known to obtain cnoQo6 ammonium ortho phosphate by reacting phosphoric ACID. With ammonia in a reactor, followed by granulation with the product C1 3. The method to produce ammonium orthophosphate by reacting phosphoric acid with ammonia in the pot of reagents followed by by granulation of the product on the layer of moving particles of the product, ammonia is fed to the interaction at a speed of less than 50 m / s, and phosphoric acid is not more than 1 m / s 2. A disadvantage of the known methods is the heterogeneity of the product obtained, the ratio of nitrogen and phosphorus varies up to 50%. . The purpose of the invention is to increase the amount of a product by increasing its homogeneity,. The goal is achieved by the interaction of iiOTOKe phosphorus acid with ammonia, supplied at a speed of 1:10 and 200-1000 m / s, respectively, followed by granulation of the product, g. In this case, granulation is carried out in the presence of ammonia supplied to. the amount obstechevayuschim the ratio of nitrogen and phosphorus in the product (1, b-1.8S.,. The process is carried out as follows. In the dispenser, which is a coaxial cylindrical nozzles for reagents, ending with. From the nozzle, the mixture enters a cylindrical pipe with decoupling curved plates. The length of a cylindrical pipe is 10-25 times its diameter. The pipe is attached to the drum granulator and the reagent mixture, coming out of it, falls on the moving layer of the product. A 43% phosphoric acid serves So the inner nozzle of the sprayer and ammonia to the outer. Cross section of the outlet of ammonia is 325 mm2, phosphoric acid is 141 mm2. The ratio of the length of the pipe to its diameter is 18: 1. in the table.
    权利要求:
    Claims (2)
    [1]
    1. METHOD FOR PRODUCING AMMONIUM ORTHOPHOSPHATE by reacting ammonia and phosphoric acid. reagent flow followed by granulation of the product, which, in order to improve the quality of the product. By increasing its homogeneity, ammonia and phosphoric acid are fed at a speed of 200-1000 and 1-10 m / s, respectively.
    [2]
    .2, Method according to π. 1, r. I mean that granulation is carried out in the presence of ammonia, supplied in an amount that provides a ratio of nitrogen to phosphorus in the product of 1.6-1.8: 1.
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    类似技术:
    公开号 | 公开日 | 专利标题
    SU1047387A3|1983-10-07|Process for producing ammonium orthophosphate
    US4166840A|1979-09-04|Process for producing ammonium phosphate from ammonia and wet process phosphoric acid
    JPH11502185A|1999-02-23|Sulfur-containing fertilizer and its production method
    US3419378A|1968-12-31|Method of producing monoammonium phosphate by reacting phosphoric acid and ammonia under pressure
    US3950495A|1976-04-13|Method for the continuous preparation of stable aqueous ammonium polyphosphate compositions
    US3730700A|1973-05-01|Process for the production of ammonium phosphate fertilizers
    US3985538A|1976-10-12|Pipe reactor-continuous ammoniator process for production of granular phosphates
    US3844721A|1974-10-29|Reactor suitable for reactions between two fluids
    JP2776504B2|1998-07-16|Pipe reactor for producing ammonium salts
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    US3348938A|1967-10-24|Process for producing granular mixed fertilizer
    US4619684A|1986-10-28|Pressure reactor for producing diammonium phosphate
    KR840001422B1|1984-09-26|Process for the production of products in the form of salid particks,in particular granulated np/npk fertilisers containing ammonium phosphate
    US3362809A|1968-01-09|Apparatus for granulating fertilizer
    US4009245A|1977-02-22|Process for the manufacture of monoammonium phosphate
    US2965471A|1960-12-20|Method and apparatus for producing mixed fertilizers
    US1869688A|1932-08-02|Method for manufacturing mixed fertilizers
    US4632998A|1986-12-30|Method of mixing a finely divided liquid with a gas to produce a mixture with the liquid in excess of its explosive limit
    CN203498274U|2014-03-26|Urea sulfate reactor
    US3459530A|1969-08-05|Production of granular magnesium ammonium phosphate
    GB2116159A|1983-09-21|A process for manufacturing granular compound fertilizers
    US5211735A|1993-05-18|Process for preparing phosphated or nitrophosphated fertilizers through solubilization of phosphate rock
    US3887130A|1975-06-03|Sulfur pelletizing
    US1977628A|1934-10-23|Production of fertilizers
    CN214390072U|2021-10-15|Tubular reactor for neutralization of nitrophosphate fertilizer acidolysis solution by freezing method
    同族专利:
    公开号 | 公开日
    YU41385B|1987-02-28|
    YU42185B|1988-06-30|
    EG14047A|1984-06-30|
    GR72515B|1983-11-16|
    AT3272T|1983-05-15|
    ES483686A1|1980-04-16|
    US4313918A|1982-02-02|
    US4370304A|1983-01-25|
    EP0005885B1|1983-05-11|
    BR7903434A|1980-01-15|
    CA1118183A|1982-02-16|
    YU127979A|1983-04-30|
    IN153200B|1984-06-16|
    ES481054A1|1980-01-16|
    IE48050B1|1984-09-05|
    MX5977E|1984-09-12|
    NL7805957A|1979-12-04|
    EP0005885A1|1979-12-12|
    MA18463A1|1979-12-31|
    TR21130A|1983-11-01|
    YU187882A|1985-06-30|
    IE791048L|1979-12-01|
    DE2965351D1|1983-06-16|
    JPS54161600A|1979-12-21|
    JPS6012967B2|1985-04-04|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    NL7805957A|NL7805957A|1978-06-01|1978-06-01|PROCESS AND EQUIPMENT FOR THE PREPARATION OF A PRODUCT CONTAINING AMMONIUM ORTHOPHOSPHATE AND ANY PRODUCT OBTAINED BY THIS PROCESS.|
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