• 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:
    A rapid, low temperature process for solubilizing phosphate rocks having high content of foreign matter or a low phosphorus content to obtain: (a) a slow release fertilizer of the NP type; (b) phosphoric acid of high concentration plus MAP; and (c) DAP.
    公开号:SU1704625A3
    申请号:SU823482655
    申请日:1982-08-23
    公开日:1992-01-07
    发明作者:Ахмед Абдаллах Абдель Хехим Хоссам；Карвалхо Коелхо Вагнер；Мария Томес Соарес Глория
    申请人:Петролео Брасилейро С.А. - Петробрас (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to a process for the processing of phosphate raw materials for fertilizer.
    The aim of the invention is to increase the content in the product of a neutral citrate soluble form.
    Example 1. 15g of VALEN concentrate containing, in wt.X. (component content exceeds 100% due to the excess oxygen required to present them as oxides), iron oxide 3.67, calcium oxide 49.94} strontium oxide 0 , 51 $ titanium oxide 1.89f potassium oxide 0.20; phosphorus pentoxide 34.95; silicon dioxide 1.93; alumina 1.37; CO 0.84J magnesium oxide 0.23; sodium oxide 0.09, fluorine 1.33, phosphorous phosphorus, soluble in neutral citrate, 0, 57 -} phosphorus pencide, soluble in citric acid, 4.7, mixed with 7.5 g (0.5 May. h.)
    and 20 ml of water (133.3 wt.%). The temperature of the reaction medium is raised to 1000 ° C and, after conducting the reaction for 0.5 h, the sedimentary powdery product has the following composition,%: fluorine 0.04; phosphorus pentoxide (total) 21.3; phosphorus pentoxide, soluble in water, 5.3, phosphorus pentaoxide, soluble in neutral loss, 8.13; nitrogen 4,3.
    By processing this raw material in a known manner, colloidal solutions are formed that are not amenable to filtration. In addition, iron and aluminum contained in raw materials are transferred from phosphates to phosphates, which reduces the active component of the resulting fertilizers. By a known method, product j is readily soluble in water, and the content of the form soluble in neutral citrate does not exceed 3, / X.
    Example 2. 15 g of concentrate from Araks, containing, May.7: oxide
    (L
    Vi o
    4 About S3
    ate

    cm
    lech, 3, / b; calcium oxide) b, h6, strontium oxide CjiB, "Kip, titanium 1, barium oxide 0, /; phosphorus pentoxide 36.4, silicon oxide 0, 3b, aluminum dioxide (1.4 /; CO 1.17, magnesium oxide P, 1a; sodium oxide 11.27} fluorine 1.94J and phosphorus complex, soluble in neutral citrate, 71 / nioxane phosphorus, soluble in citric acid 3.6, mixed with 7.8 g (0.52 parts by weight) NHUKS () 4 and 20 ml of water (133.3 wt.%). Reaction temperature the mixtures are grown to 100 ° C (; and after the reaction has been carried out for F, 5 hours, the product, vpalactium, precipitates, has the following composition, X: fluorine d, 05f, phosphorus pentoxide, only 22.27 pltioxn
    phospho), JKH tlorim and neutral citrate, H, 8; a ("t 4,2.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    A method of processing phosphate raw materials for fertilizer, including its processing with ammonium bisulfate at
    heated in the presence of water, characterized in that, in order to expose the content in the product of a form soluble in neutral citrate, ammonium bisulfate is fed to
    processing in the amount of 0, 5-P, 52 May. h, per 1 m.ch. phosphate raw materials, and water - in the amount of 133.3% by weight of phosphate raw materials.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1704625A3|1992-01-07|Method of phosphate raw processing
    US3290140A|1966-12-06|Method of mixing and storing solutions comprising ammonium phosphate
    US3554729A|1971-01-12|Manufacture of low chloride potassium phosphate fertilizer
    US3708275A|1973-01-02|Manufacture of alkali metal phosphates
    Ohashi et al.1962|Condensed Vanadate-Phosphates
    US3926610A|1975-12-16|Removal of fertilizer precipitate
    EP0310868B1|1992-08-19|Method for purifying calcium nitrate melt/solution which is separated from the mixture obtained by the solution of rock phosphate with nitric acid
    US3785797A|1974-01-15|Production of nitrophosphate fertilizer
    US2680679A|1954-06-08|Manufacture of fertilizers
    US4721519A|1988-01-26|Stable ammonium polyphosphate liquid fertilizer from merchant grade phosphoric acid
    US3536472A|1970-10-27|Liquid fertilizers
    US4832735A|1989-05-23|High nutrient value liquid fertilizer
    US3554728A|1971-01-12|Process for making non-hygroscopic ammonium phosphate
    US1329273A|1920-01-27|William h
    US4436546A|1984-03-13|Fertilizer material from apatite
    SU1047895A1|1983-10-15|Method of producing complex fertilizers
    US3362785A|1968-01-09|Production of ammonium pyrophosphates and by-product calcium fluoride
    SU485099A1|1975-09-25|The method of obtaining complex fertilizers
    DE1292674B|1969-04-17|Process for making complex NPS fertilizers
    Egan Jr et al.1963|Heat of Solution of Monoammonium and Monopotassium Phosphates at 25° C.
    SU1201277A1|1985-12-30|Method of producing magnesium-ammonium-phosphorous fertilizers
    SU796236A1|1981-01-15|Method of producing liquid fertilizer
    SU881096A1|1981-11-15|Method of producing suspended fertilizers
    US3834886A|1974-09-10|Potassium phosphate fertilizer process
    SU564297A1|1977-07-05|Method for obtaining compound fertilizers
    同族专利:
    公开号 | 公开日
    JPH0345037B2|1991-07-09|
    MX161175A|1990-08-13|
    ZA825548B|1983-06-29|
    IT1149066B|1986-12-03|
    GB2104499B|1985-05-01|
    IT8249015D0|1982-08-20|
    US4523941A|1985-06-18|
    US4469504A|1984-09-04|
    FR2511664B1|1985-10-31|
    MA19575A1|1983-04-01|
    GB2104499A|1983-03-09|
    DE3229890C2|1989-11-09|
    FR2511664A1|1983-02-25|
    DE3229890A1|1983-03-03|
    JPS5884191A|1983-05-20|
    BR8105391A|1983-03-29|
    BE894132A|1982-12-16|
    OA07195A|1984-04-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE34318C|W. S. PlERCE in New-York, 120 Broadway, V. St. A.; Vertreter.- BRYDGES & CO. in Berlin SW., Königgrätzerstr. 101|Innovations in the manufacture of fertilizers|
    DD28902A|
    US3172751A|1965-03-09|Process for producing nitrogen-phos- |
    US988734A|1909-09-02|1911-04-04|American Cyanamid Co|Process of making primary ammonium phosphate.|
    DE528013C|1926-12-23|1931-06-24|Frans Georg Liljenroth|Process for the production of a fertilizer|
    US1816051A|1928-05-21|1931-07-28|Chemical Products Company|Method for treating phosphate material|
    US1936316A|1929-11-28|1933-11-21|Kunstdunger Patent Verwertungs|Method of leaching phosphate rock with nitric acid and ammonium sulphate|
    US2036494A|1930-03-26|1936-04-07|Tennessee Corp|Process of producing phosphate fertilizer|
    DE833498C|1949-10-10|1952-03-10|Rumianca Spa|Method and device for the production of nitrogen-containing phosphate fertilizers|
    DE859476C|1950-01-10|1952-12-15|Guano Werke Ag|Process for the production of a spreadable, water-soluble phosphoric acid containing nitrogen-phosphoric acid fertilizer|
    US2716591A|1951-08-16|1955-08-30|Alfred M Thomsen|Method of resolving phosphatic complexes|
    US3552919A|1968-05-13|1971-01-05|Dorr Oliver Inc|Process for the manufacture of phosphoric acid|
    US3635669A|1968-12-26|1972-01-18|B D Bohna & Co Inc|Method of producing concentrated phosphoric acid compounds from phosphate rock|
    US3663168A|1969-07-03|1972-05-16|Bohna & Co B D|Method of producing concentrated phosphoric acid|
    PL124240B1|1979-06-27|1983-01-31|Politechnika Wroclawska|Method of manufacture of mixed fertilizers|BR8400318A|1984-01-26|1985-09-03|Petroleo Brasileiro Sa|PROCESS OF PREPARING FERTILIZER BY PARTIAL SOLUBILIZATION OF PHOSPHATIC ROCKS|
    US5211735A|1987-04-24|1993-05-18|Petroleo Brasileiro S. A.|Process for preparing phosphated or nitrophosphated fertilizers through solubilization of phosphate rock|
    FI117973B|2001-04-17|2007-05-15|Kemira Growhow Oyj|Improved forest fertilizer|
    DE102009039285A1|2009-08-28|2011-03-24|Technische Universität Bergakademie Freiberg|Agent, useful for soil improvement, in agriculture and land recultivation, comprises phosphate-containing sludge of the processing residues obtained during the wet processing of phosphate ores|
    CN111573695A|2020-04-09|2020-08-25|浙江省天正设计工程有限公司|Recycling treatment process for high-concentration organic wastewater containing phosphorus and sulfur|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    BR8105391A|BR8105391A|1981-08-24|1981-08-24|PARTIAL SOLUBILIZATION PROCESS OF PHOSPHATIC ROCKS AND POSTERIOR OBTAINING OF FORFORIC ACID AND PHOSPHORATED FERTILIZERS|
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