RU2003112129A - METHOD FOR PROCESSING NITROGENIC ACID ALPHAS CONTAINING SOLUTIONS WITH HIGH CONTENT OF TREVALENT IRON - Google Patents

METHOD FOR PROCESSING NITROGENIC ACID ALPHAS CONTAINING SOLUTIONS WITH HIGH CONTENT OF TREVALENT IRON

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Publication number
RU2003112129A
RU2003112129A RU2003112129/06A RU2003112129A RU2003112129A RU 2003112129 A RU2003112129 A RU 2003112129A RU 2003112129/06 A RU2003112129/06 A RU 2003112129/06A RU 2003112129 A RU2003112129 A RU 2003112129A RU 2003112129 A RU2003112129 A RU 2003112129A
Authority
RU
Russia
Prior art keywords
high content
processing
iron
containing solutions
trevalent
Prior art date
Application number
RU2003112129/06A
Other languages
Russian (ru)
Other versions
RU2257626C2 (en
Inventor
Олег Михайлович Слюнчев
Денис Евгеньевич Резчиков
Original Assignee
ФГУП "Производственное объединение "Маяк"
Filing date
Publication date
Application filed by ФГУП "Производственное объединение "Маяк" filed Critical ФГУП "Производственное объединение "Маяк"
Priority to RU2003112129/06A priority Critical patent/RU2257626C2/en
Priority claimed from RU2003112129/06A external-priority patent/RU2257626C2/en
Publication of RU2003112129A publication Critical patent/RU2003112129A/en
Application granted granted Critical
Publication of RU2257626C2 publication Critical patent/RU2257626C2/en

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Claims (2)

1. Способ переработки азотно-кислых альфасодержащих растворов с высоким содержанием трехвалентного железа, включающий предварительную упарку перерабатываемого раствора с получением регенерированной азотной кислоты и кубового остатка, его нейтрализацию до рН 1-2, частичное восстановление трехвалентного железа сульфитом натрия до соотношения между валентными формами Fe3+:Fe2+=2:1, последующую нейтрализацию щелочью до рН 10-11, образование осадка магнетита, который после отстаивания направляется на отверждение, декантацию раствора, магнитную сепарацию декантата и направление на дополнительную очистку.1. A method of processing nitric acid alpha-containing solutions with a high content of ferric iron, including pre-evaporation of the processed solution to obtain regenerated nitric acid and bottoms, its neutralization to pH 1-2, partial restoration of ferric iron with sodium sulfite to the ratio between the valence forms of Fe 3 + : Fe 2+ = 2: 1, subsequent neutralization with alkali to pH 10-11, the formation of a precipitate of magnetite, which after settling is sent to the curing, decantation of the solution, magnetically The separation of the decantate and the direction for additional cleaning. 2. Способ по п.1, отличающийся тем, что дополнительную очистку проводят известными способами, например ионным обменом.2. The method according to claim 1, characterized in that the additional purification is carried out by known methods, for example, by ion exchange.
RU2003112129/06A 2003-04-24 2003-04-24 Method for recovering alpha-active nitric acid solutions containing trivalent iron RU2257626C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2003112129/06A RU2257626C2 (en) 2003-04-24 2003-04-24 Method for recovering alpha-active nitric acid solutions containing trivalent iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2003112129/06A RU2257626C2 (en) 2003-04-24 2003-04-24 Method for recovering alpha-active nitric acid solutions containing trivalent iron

Publications (2)

Publication Number Publication Date
RU2003112129A true RU2003112129A (en) 2004-10-27
RU2257626C2 RU2257626C2 (en) 2005-07-27

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Family Applications (1)

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RU2003112129/06A RU2257626C2 (en) 2003-04-24 2003-04-24 Method for recovering alpha-active nitric acid solutions containing trivalent iron

Country Status (1)

Country Link
RU (1) RU2257626C2 (en)

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