SU497274A1 - The method of obtaining complex fertilizers - Google Patents

The method of obtaining complex fertilizers

Info

Publication number
SU497274A1
SU497274A1 SU1992694A SU1992694A SU497274A1 SU 497274 A1 SU497274 A1 SU 497274A1 SU 1992694 A SU1992694 A SU 1992694A SU 1992694 A SU1992694 A SU 1992694A SU 497274 A1 SU497274 A1 SU 497274A1
Authority
SU
USSR - Soviet Union
Prior art keywords
obtaining complex
complex fertilizers
obtaining
fertilizers
liquid nitrogen
Prior art date
Application number
SU1992694A
Other languages
Russian (ru)
Inventor
Абдувахид Кушакович Худайбергенов
Фаттах Мирзаевич Мирзаев
Рахмат Нишанович Базаров
Original Assignee
Ташкентский Политехнический Институт Им.А.Р.Беруни
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 Ташкентский Политехнический Институт Им.А.Р.Беруни filed Critical Ташкентский Политехнический Институт Им.А.Р.Беруни
Priority to SU1992694A priority Critical patent/SU497274A1/en
Application granted granted Critical
Publication of SU497274A1 publication Critical patent/SU497274A1/en

Links

Description

фосфорной кислотой. Юг приведенного выше состава фосфорита помещают в сосуд Дьюара, в который был залит 50 мл жидкого азота и обрабатывают перемешиванием до полного израсходовани  последнего. Далее в сосуд наливают экстракционную фосфорную кислоту (25,4% Р2О5) из расчета получени  в результате разложени  монокальций фосфата. Норма фосфорной кислоты 95% против стехиометрического количества.phosphoric acid. The south of the above phosphorite composition is placed in a Dewar vessel, into which 50 ml of liquid nitrogen was poured and treated by stirring until the latter is completely consumed. Next, extraction phosphoric acid (25.4% of P2O5) is poured into the vessel at the rate of obtaining monocalcium phosphate as a result of decomposition. The rate of phosphoric acid is 95% versus stoichiometric amount.

Разложение провод т при 85-90°С в течение 1 час. Затем реакционную массу нейтрализуют газообразным аммиаком и высушивают при 80-90°С. Коэффициент извлечени  PjOs в усво емую форму составл ет 95%.Decomposition is carried out at 85-90 ° C for 1 hour. Then the reaction mass is neutralized with gaseous ammonia and dried at 80-90 ° C. The recovery rate of PjOs in digestible form is 95%.

Предмет 13обретени Item 13 of the acquisition

Claims (2)

1.Способ получени  сложных удобрений путем кислотного разложени  фосфорита, отличающийс  тем, что, с целью интенсификации процесса, уменьшени  расхода кислоты, более полного извлечени  фосфора в усво емой форме и устранени  необходимости складского дозревани , фосфорит предварительно обрабатывают жидким азотом.1. A method of obtaining complex fertilizers by acid decomposition of phosphate, characterized in that, in order to intensify the process, reduce acid consumption, more fully remove phosphorus in an assimilable form and eliminate the need for storage, phosphorite is pretreated with liquid nitrogen. 2.Способ по п. 1, отличающийс  тем, что обработку ведут в течение 1-1,5 час.2. A method according to claim 1, wherein the treatment is carried out for 1-1.5 hours.
SU1992694A 1974-02-05 1974-02-05 The method of obtaining complex fertilizers SU497274A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1992694A SU497274A1 (en) 1974-02-05 1974-02-05 The method of obtaining complex fertilizers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1992694A SU497274A1 (en) 1974-02-05 1974-02-05 The method of obtaining complex fertilizers

Publications (1)

Publication Number Publication Date
SU497274A1 true SU497274A1 (en) 1975-12-30

Family

ID=20574683

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1992694A SU497274A1 (en) 1974-02-05 1974-02-05 The method of obtaining complex fertilizers

Country Status (1)

Country Link
SU (1) SU497274A1 (en)

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