RU2009109920A - METHOD FOR PRODUCING DICALCIUMPHOSPHATE - Google Patents

METHOD FOR PRODUCING DICALCIUMPHOSPHATE Download PDF

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Publication number
RU2009109920A
RU2009109920A RU2009109920/21A RU2009109920A RU2009109920A RU 2009109920 A RU2009109920 A RU 2009109920A RU 2009109920/21 A RU2009109920/21 A RU 2009109920/21A RU 2009109920 A RU2009109920 A RU 2009109920A RU 2009109920 A RU2009109920 A RU 2009109920A
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RU
Russia
Prior art keywords
limestone
mixing
producing
dicalciumphosphate
ripening
Prior art date
Application number
RU2009109920/21A
Other languages
Russian (ru)
Other versions
RU2411222C2 (en
Inventor
Тагир Вильданович Шарипов (RU)
Тагир Вильданович Шарипов
Ахат Газизьянович Мустафин (RU)
Ахат Газизьянович Мустафин
Original Assignee
Тагир Вильданович Шарипов (RU)
Тагир Вильданович Шарипов
Ахат Газизьянович Мустафин (RU)
Ахат Газизьянович Мустафин
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Application filed by Тагир Вильданович Шарипов (RU), Тагир Вильданович Шарипов, Ахат Газизьянович Мустафин (RU), Ахат Газизьянович Мустафин filed Critical Тагир Вильданович Шарипов (RU)
Priority to RU2009109920/21A priority Critical patent/RU2411222C2/en
Publication of RU2009109920A publication Critical patent/RU2009109920A/en
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Publication of RU2411222C2 publication Critical patent/RU2411222C2/en

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Abstract

Способ получения дикальцийфосфата, включающий смешение фосфорной кислоты с известняком при 60-80°С в безретурном режиме с последующим дозреванием и сушкой продукта топочными газами при 120-145°С до остаточного содержания влаги 1,5-2,5%, отличающийся тем, что смешение ведут в двух последовательно соединенных двухвальных смесителях в течение 4-8 мин при добавлении абсорбционной жидкости в количестве 40-70% от массы известняка. A method of producing dicalcium phosphate, comprising mixing phosphoric acid with limestone at 60-80 ° C in a continuous mode, followed by ripening and drying the product with flue gases at 120-145 ° C to a residual moisture content of 1.5-2.5%, characterized in that mixing is carried out in two series-connected twin-shaft mixers for 4-8 minutes with the addition of absorption liquid in an amount of 40-70% by weight of limestone.

Claims (1)

Способ получения дикальцийфосфата, включающий смешение фосфорной кислоты с известняком при 60-80°С в безретурном режиме с последующим дозреванием и сушкой продукта топочными газами при 120-145°С до остаточного содержания влаги 1,5-2,5%, отличающийся тем, что смешение ведут в двух последовательно соединенных двухвальных смесителях в течение 4-8 мин при добавлении абсорбционной жидкости в количестве 40-70% от массы известняка. A method of producing dicalcium phosphate, comprising mixing phosphoric acid with limestone at 60-80 ° C in a continuous mode, followed by ripening and drying the product with flue gases at 120-145 ° C to a residual moisture content of 1.5-2.5%, characterized in that mixing is carried out in two series-connected twin-shaft mixers for 4-8 minutes with the addition of absorption liquid in an amount of 40-70% by weight of limestone.
RU2009109920/21A 2009-03-18 2009-03-18 Method for synthesis of dicalcium phosphate RU2411222C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2009109920/21A RU2411222C2 (en) 2009-03-18 2009-03-18 Method for synthesis of dicalcium phosphate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2009109920/21A RU2411222C2 (en) 2009-03-18 2009-03-18 Method for synthesis of dicalcium phosphate

Publications (2)

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RU2009109920A true RU2009109920A (en) 2010-09-27
RU2411222C2 RU2411222C2 (en) 2011-02-10

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RU2009109920/21A RU2411222C2 (en) 2009-03-18 2009-03-18 Method for synthesis of dicalcium phosphate

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2461517C1 (en) * 2010-12-30 2012-09-20 Государственное образовательное учреждение высшего профессионального образования "Башкирский государственный университет" (ГОУ ВПО БашГУ) Method of producing dicalcium phosphate

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2467988C1 (en) * 2011-04-05 2012-11-27 Открытое акционерное общество (ОАО) "Мелеузовские минеральные удобрения" Method of producing dicalcium phosphate
RU2673751C1 (en) * 2018-02-22 2018-11-29 Федеральное государственное бюджетное научное учреждение "Федеральный исследовательский центр "Красноярский научный центр Сибирского отделения Российской академии наук" (ФИЦ КНЦ СО РАН, КНЦ СО РАН) Method of obtaining phosphate-potassium fertilizers based on wood bark

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2461517C1 (en) * 2010-12-30 2012-09-20 Государственное образовательное учреждение высшего профессионального образования "Башкирский государственный университет" (ГОУ ВПО БашГУ) Method of producing dicalcium phosphate

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RU2411222C2 (en) 2011-02-10

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PC41 Official registration of the transfer of exclusive right

Effective date: 20110722

MM4A The patent is invalid due to non-payment of fees

Effective date: 20190319