SU715559A1 - Method of processing dolomitized phosphorites - Google Patents
Method of processing dolomitized phosphorites Download PDFInfo
- Publication number
- SU715559A1 SU715559A1 SU772492332A SU2492332A SU715559A1 SU 715559 A1 SU715559 A1 SU 715559A1 SU 772492332 A SU772492332 A SU 772492332A SU 2492332 A SU2492332 A SU 2492332A SU 715559 A1 SU715559 A1 SU 715559A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- processing
- phosphorites
- filtration
- phosphorite
- sulfuric acid
- Prior art date
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- Fertilizers (AREA)
Description
(54) СПОСОБ ПЕРЕРАБОТ1СИ ДОЛШИТИЗИРОВАННЫХ ФОСФОРИТОВ(54) METHOD FOR PROCESSING OF LONGENIZED PHOSPHORITES
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Изобретение относитс к технике преработки высокодолоиитизированньк фосфоритов в удобрени , в частности в двойной суперфосфат.This invention relates to a technique for processing highly molten phosphate phosphates into fertilizers, in particular into double superphosphate.
Известен способ переработки низкосортных фосфоритов в- фосфорсодержащие удобрени путём разложени фосфата серной кислотой, отделени ; фосфогипса, нейтрализации полученной фосфорной кислоты с последующей сушкой и гранул цией продукта 1.There is a known method of processing low-grade phosphorites in phosphorus-containing fertilizers by decomposing phosphate with sulfuric acid, separation; phosphogypsum, neutralization of the obtained phosphoric acid, followed by drying and granulation of the product 1.
Недостаток способа - пониженное, по сравнению с продуктом, полученным при переработке апатита, содержание водорастворимых и усво емых форм соединений фосфора в удобрении.The disadvantage of the method is a lower content of water-soluble and assimilable forms of phosphorus compounds in fertilizer, as compared with the product obtained during the processing of apatite.
Известен способ переработки доломитизированных фосфоритов, включаюший обезмагнивание фосфоритнойThere is a method of processing dolomitic phosphorites, including the disintegration of phosphorite
фильтрацию суспензии, разложение обезмагненного фосфорита серной кислотой , отделение фосфогипса и нейтрализацию полученной фосфорной кислоты с последующей сушкой продукта 2 .filtering the suspension, decomposing the non-magnetized phosphate with sulfuric acid, separating the phosphogypsum and neutralizing the resulting phosphoric acid, followed by drying the product 2.
Недостатком такого способа вл етс обаждение в концентрат обезмагненного фосфорита значительных количеств сульфата кальци (от б до 20% - в зависимости от состава исходного сйрь и степени его очистки ) i Вследствие этого при использовании обезмагненного фосфорита дл нейтрализации фосфорной кислоты в производстве двойного суперфосфата ; удобрение характеризуетс наличием больших количеств гипса и пониженны1 1 содержанием усво емой The disadvantage of this method is that significant amounts of calcium sulfate be plated into the concentrate of demagnetized phosphate (from 6 to 20% depending on the composition of the initial syryr and the degree of its purification). fertilizer is characterized by the presence of large quantities of gypsum and a lower than 1 content of digestible
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772492332A SU715559A1 (en) | 1977-06-06 | 1977-06-06 | Method of processing dolomitized phosphorites |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772492332A SU715559A1 (en) | 1977-06-06 | 1977-06-06 | Method of processing dolomitized phosphorites |
Publications (1)
Publication Number | Publication Date |
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SU715559A1 true SU715559A1 (en) | 1980-02-15 |
Family
ID=20711649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772492332A SU715559A1 (en) | 1977-06-06 | 1977-06-06 | Method of processing dolomitized phosphorites |
Country Status (1)
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SU (1) | SU715559A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4320010A (en) * | 1980-01-24 | 1982-03-16 | Sys-Tec, Inc. | Regeneration detector for water softeners |
-
1977
- 1977-06-06 SU SU772492332A patent/SU715559A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4320010A (en) * | 1980-01-24 | 1982-03-16 | Sys-Tec, Inc. | Regeneration detector for water softeners |
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