RU2016104566A - METHOD FOR PRODUCING LIQUID COMPLEX FERTILIZERS - Google Patents

METHOD FOR PRODUCING LIQUID COMPLEX FERTILIZERS Download PDF

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Publication number
RU2016104566A
RU2016104566A RU2016104566A RU2016104566A RU2016104566A RU 2016104566 A RU2016104566 A RU 2016104566A RU 2016104566 A RU2016104566 A RU 2016104566A RU 2016104566 A RU2016104566 A RU 2016104566A RU 2016104566 A RU2016104566 A RU 2016104566A
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RU
Russia
Prior art keywords
producing liquid
liquid complex
neutralization
complex fertilizers
introducing
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RU2016104566A
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Russian (ru)
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RU2016104566A3 (en
Inventor
Тагир Вильданович Шарипов
Гульназ Садрихановна Кинзябулатова
Юлия Ришатовна Раянова
Ахат Газизьянович Мустафин
Original Assignee
Тагир Вильданович Шарипов
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Application filed by Тагир Вильданович Шарипов filed Critical Тагир Вильданович Шарипов
Priority to RU2016104566A priority Critical patent/RU2016104566A/en
Publication of RU2016104566A publication Critical patent/RU2016104566A/en
Publication of RU2016104566A3 publication Critical patent/RU2016104566A3/ru

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Claims (1)

Способ получения жидких комплексных удобрений, включающий нейтрализацию при температуре 95-99°C экстракционной фосфорной кислоты карбамидом в виде водного раствора, взятого в мольном отношении карбамид : H3PO4, равном (1,5-2,5):1 в присутствии кальцийсодержащего агента, взятого в мольном отношении кальций: фтор, равном 1:2, при плотности реакционной массы 1,22-1,28 г/см3 до достижения pH среды 5,0-5,9 в первой стадии нейтрализации, отделение осадка нерастворимых примесей из реакционной массы, доведение pH среды до 6,5-7,2 во второй стадии, введение раствора солей микроэлементов в присутствии комплексообразователя, отличающийся тем, что доведение pH среды до 6,5-7,2 во второй стадии нейтрализации осуществляют введением водного раствора аммиака или кристаллического карбоната аммония.A method for producing liquid complex fertilizers, including neutralization of extraction phosphoric acid with carbamide at a temperature of 95-99 ° C in the form of an aqueous solution taken in a molar ratio of urea: H 3 PO 4 equal to (1.5-2.5): 1 in the presence of calcium-containing an agent taken in a molar ratio of calcium: fluorine equal to 1: 2, with a density of the reaction mass of 1.22-1.28 g / cm 3 to achieve a pH of 5.0-5.9 in the first stage of neutralization, the separation of the precipitate of insoluble impurities from the reaction mass, adjusting the pH of the medium to 6.5-7.2 in the second stage, introducing the solution with leu microelements in the presence of complexing agent, characterized in that the medium to bring the pH 6.5-7.2 during the second neutralization step is carried out by introducing an aqueous solution of ammonia or ammonium carbonate crystal.
RU2016104566A 2016-02-10 2016-02-10 METHOD FOR PRODUCING LIQUID COMPLEX FERTILIZERS RU2016104566A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2016104566A RU2016104566A (en) 2016-02-10 2016-02-10 METHOD FOR PRODUCING LIQUID COMPLEX FERTILIZERS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2016104566A RU2016104566A (en) 2016-02-10 2016-02-10 METHOD FOR PRODUCING LIQUID COMPLEX FERTILIZERS

Publications (2)

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RU2016104566A true RU2016104566A (en) 2017-08-15
RU2016104566A3 RU2016104566A3 (en) 2019-02-07

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RU2016104566A RU2016104566A (en) 2016-02-10 2016-02-10 METHOD FOR PRODUCING LIQUID COMPLEX FERTILIZERS

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RU2016104566A3 (en) 2019-02-07

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FA92 Acknowledgement of application withdrawn (lack of supplementary materials submitted)

Effective date: 20190524