SU304824A1 - B P T V \ FSHSCH SuOE? IOO j - Google Patents

B P T V \ FSHSCH SuOE? IOO j

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Publication number
SU304824A1
SU304824A1 SU1334238A SU1334238A SU304824A1 SU 304824 A1 SU304824 A1 SU 304824A1 SU 1334238 A SU1334238 A SU 1334238A SU 1334238 A SU1334238 A SU 1334238A SU 304824 A1 SU304824 A1 SU 304824A1
Authority
SU
USSR - Soviet Union
Prior art keywords
suoe
fshsch
ioo
melt
nitrogen
Prior art date
Application number
SU1334238A
Other languages
Russian (ru)
Inventor
А.Н. Сарбаев
В.И. Кучерявый
М.А. Виноградов
Ю.И. Михайлов
В.В. Лебедев
Б.П. Мельников
Н.И. Левенкова
Original Assignee
А. Н. Сарбаев, Куче вый, МЛ. Виноградов, Ю.Й хайлоБ,В,Б.Лебедев,Б.П.Мельников , Н.йеЛевенксБа
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by А. Н. Сарбаев, Куче вый, МЛ. Виноградов, Ю.Й хайлоБ,В,Б.Лебедев,Б.П.Мельников , Н.йеЛевенксБа filed Critical А. Н. Сарбаев, Куче вый, МЛ. Виноградов, Ю.Й хайлоБ,В,Б.Лебедев,Б.П.Мельников , Н.йеЛевенксБа
Priority to SU1334238A priority Critical patent/SU304824A1/en
Application granted granted Critical
Publication of SU304824A1 publication Critical patent/SU304824A1/en

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  • Fertilizers (AREA)

Description

Изобретение относитс  к области получешш гранулированных азотнорорных удобрений. 13Бестен способ получени  таких удобрений смешением расплавов мо чешны и фосфата аммони  при 180200- С с последующей гранул цией полученного плава. Однако смешение расплавов по известному способу ПРИВОДИ к значительному разложенш мочевины и вследствие этого к потере усво мого азота. Предлагаемый способ отличаетс  тем, что расплав фосфата ашюни  подают на смешение при температуре пор дка , Это позвол ет смешивать заранее переожлажденный расплав фосфата аьшони  (т.пл. 190 С) с расплавом мочевины при т.пл. мочевдны 132 С, что устран ет процесс разложени  :после.цней, а следовательно, и усво емого азота в товарном продукте. iTp и м е Р . Расплав карбамада ( мочевины) с концентрацией 99,5 при в количестве 122,4 вес.ч. сме ивают менее I мин с переохлалсденным до расплавом фосфата аммони  (57,5 вес.ч.) Затем плав гранулируют разбрызшванием в гранбашне , продуваемой воздухом, и получают гранулированный продукт однородаого состава с содержанием азота 36,4 (в том числе 32.8 карбамидного азота) и PgOg 18,S. (уммарное содержание питательных веществ 54,9. ПРЩМЕТ ЙЗОБРШГШШ ( Способ получени  гоанулированннх азотнофосфорных удобрений путем смешени  расплавов мочевины и фосфата аммони , отличающийс  тем, что, с целью устранени  потерь усво емого азота в товарном цродукте, расплав фосфатов аммони  подают на шешение при температуре пор дка .This invention relates to the field of better granular nitrogen-fertilizer fertilizers. The 13 Besten method of producing such fertilizers by mixing melts of granules and ammonium phosphate at 180200 ° C, followed by granulation of the resulting melt. However, the mixing of melts according to a known method leads to a significant decomposition of urea and, consequently, to a loss of nitrogen absorption. The proposed method is characterized in that the ashyuni phosphate melt is fed to the mixture at a temperature of the order. This makes it possible to mix the previously supercooled ashony phosphate melt (mp. 190 ° C) with the urea melt upon mp. 132 C urinary, which eliminates the process of decomposition: after the. and, consequently, assimilable nitrogen in the commercial product. iTp and m e r. The melt of carbamade (urea) with a concentration of 99.5 with an amount of 122.4 parts by weight. less than 1 min is mixed with supercooled ammonium phosphate melt (57.5 parts by weight). Then the melt is granulated by spraying in an air-driven granite tower, and a granular product of a homogeneous composition with a nitrogen content of 36.4 (including 32.8 carbamide nitrogen) is obtained and PgOg 18, s. (total nutrient content 54.9. PRSHMET YZOBRSHGShSh (Method for producing goanulised nitrogenous phosphate fertilizers by mixing urea melts and ammonium phosphate, characterized in that, in order to eliminate the loss of assimilable nitrogen in the commercial product, ammonium phosphate melts are heated. dca.

SU1334238A 1969-05-26 1969-05-26 B P T V \ FSHSCH SuOE? IOO j SU304824A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1334238A SU304824A1 (en) 1969-05-26 1969-05-26 B P T V \ FSHSCH SuOE? IOO j

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1334238A SU304824A1 (en) 1969-05-26 1969-05-26 B P T V \ FSHSCH SuOE? IOO j

Publications (1)

Publication Number Publication Date
SU304824A1 true SU304824A1 (en) 1974-09-05

Family

ID=20445919

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1334238A SU304824A1 (en) 1969-05-26 1969-05-26 B P T V \ FSHSCH SuOE? IOO j

Country Status (1)

Country Link
SU (1) SU304824A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6709685B1 (en) * 1998-06-29 2004-03-23 Kemira Agro Oy Process for the preparation of compound fertilizer granules

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6709685B1 (en) * 1998-06-29 2004-03-23 Kemira Agro Oy Process for the preparation of compound fertilizer granules

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