SU827381A1 - Solution for washing calcium sulfate - Google Patents

Solution for washing calcium sulfate Download PDF

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Publication number
SU827381A1
SU827381A1 SU792796205A SU2796205A SU827381A1 SU 827381 A1 SU827381 A1 SU 827381A1 SU 792796205 A SU792796205 A SU 792796205A SU 2796205 A SU2796205 A SU 2796205A SU 827381 A1 SU827381 A1 SU 827381A1
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SU
USSR - Soviet Union
Prior art keywords
solution
phosphoric acid
calcium sulfate
water
washing
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SU792796205A
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Russian (ru)
Inventor
Василий Федорович Кармышов
Борис Иосифович Шуб
Анатолий Владимирович Уваров
Эмма Валентиновна Хлебодарова
Нинель Валеевна Полякова
Константин Архипович Буряк
Мирон Григорьевич Ли
Садулло Курбанович Курбанов
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Предприятие П/Я В-8830
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Priority to SU792796205A priority Critical patent/SU827381A1/en
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Publication of SU827381A1 publication Critical patent/SU827381A1/en

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Description

После 360 ч осадка After 360 h of sediment

в коммуникаци х практически не было.there was practically no communication.

Пример 2. В бак дл  приготовлени  промывного раствора подают кислые воды после промывки фильтровального .полотна, содержащие 20 г/л иона Р04. В этот же бак подают аммиачный конденсат с содержанием NH4+ 1,2 г/л, РОг 2,5 г/л. Предварительно в аммиачиом конденсате раствор ют пыль моно- и диаммонийфосфата, котора   вл етс  отходом нроизводства аммофоса. Количества воды после промывки полотна и аммиачиого конденсата были вз ты в соотношении 1:1. За счет этого уменьшают вдвое расход чистой воды дл  приготовлени  промывного раствора. Промывной раствор после смешени  содержит NH4+ 0,6 г/л, РОг 11,5 г/л. Этим раствором промывают осадок сульфата кальци  в течение 240 ч.Example 2. Acidic water is fed into the tank for the preparation of the washing solution after washing the filtering cavity, containing 20 g / l of PO4 ion. Ammonia condensate containing NH4 + 1.2 g / l, ROg 2.5 g / l is fed to the same tank. The mono and diammonium phosphate dust, which is a waste product of ammophos, is dissolved in ammonia condensate beforehand. The amounts of water after washing the web and ammonia condensate were taken in a 1: 1 ratio. Due to this, the consumption of pure water is halved for preparing the washing solution. The wash solution after mixing contains NH4 + 0.6 g / l, ROg 11.5 g / l. This solution is washed with a precipitate of calcium sulfate for 240 hours.

При ревизии коммуникаций фильтра на стенках обнаружили лишь небольшой слой (0,2-0,5 мм) рыхлого осадка, т. е. практически коммуникации были чистыми.During the audit of the filter communications on the walls, only a small layer (0.2-0.5 mm) of loose sediment was found, i.e. practically the communications were clean.

Таким образом, предложенный раствор позвол ет интенсифицировать процесс за счет сокрашепи  простоев.Thus, the proposed solution allows to intensify the process due to the contraction of downtime.

Claims (2)

Формула изобретени Invention Formula Раствор дл  отмывки сульфата кальци  в производстве экстракционной фосфорной кислоты, содерл ;аш,ий соединени  аммони  и воду, о т л и ч а ю ш н и с   тем, что, с целью исключени  инкрустации оборудовани , он дополнительно содержит соединени  фосфорной кислоты цри следуюш,ей концентрации в растворе, г/л: Соединение аммони  в пересчете на NH4+0,1-1,0 Соединение фосфорной кислоты в пересчете на РО4 1-20 Вода Остальное до 1 лThe solution for washing calcium sulphate in the production of extraction phosphoric acid, containing ammonium compounds and ammonium and water, is due to the fact that, in order to exclude equipment incrustation, it additionally contains phosphoric acid compounds , its concentration in solution, g / l: Ammonium compound in terms of NH4 + 0.1-1.0 Phosphoric acid compound in terms of PO4 1-20 Water The rest is up to 1 l Источники информации, прин тые во внимание при экспертизе 1. Патент Франции № 2114584, кл. С 01В 25/00, опублик. 1972.Sources of information taken into account in the examination 1. French patent number 2114584, cl. From 01B 25/00, published 1972. 2. Авторское свидетельство СССР №. 196739, кл. С 01В 25/22, 1966.2. USSR author's certificate №. 196739, cl. C 01B 25/22, 1966.
SU792796205A 1979-07-16 1979-07-16 Solution for washing calcium sulfate SU827381A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU792796205A SU827381A1 (en) 1979-07-16 1979-07-16 Solution for washing calcium sulfate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU792796205A SU827381A1 (en) 1979-07-16 1979-07-16 Solution for washing calcium sulfate

Publications (1)

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SU827381A1 true SU827381A1 (en) 1981-05-07

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SU792796205A SU827381A1 (en) 1979-07-16 1979-07-16 Solution for washing calcium sulfate

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SU (1) SU827381A1 (en)

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