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RU2000122461A - METHOD FOR PREPARING HIGHLY ACTIVE NITRIC ACID SOLUTIONS FOR CURING - Google Patents

METHOD FOR PREPARING HIGHLY ACTIVE NITRIC ACID SOLUTIONS FOR CURING

Info

Publication number
RU2000122461A
RU2000122461A RU2000122461/06A RU2000122461A RU2000122461A RU 2000122461 A RU2000122461 A RU 2000122461A RU 2000122461/06 A RU2000122461/06 A RU 2000122461/06A RU 2000122461 A RU2000122461 A RU 2000122461A RU 2000122461 A RU2000122461 A RU 2000122461A
Authority
RU
Russia
Prior art keywords
nitric acid
highly active
curing
amount
acid solutions
Prior art date
Application number
RU2000122461/06A
Other languages
Russian (ru)
Other versions
RU2189649C2 (en
Inventor
Александр Юрьевич Кузин
Евгений Григорьевич Дзекун
Николай Александрович Гергенрейдер
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 RU2000122461/06A priority Critical patent/RU2189649C2/en
Priority claimed from RU2000122461/06A external-priority patent/RU2189649C2/en
Application granted granted Critical
Publication of RU2189649C2 publication Critical patent/RU2189649C2/en
Publication of RU2000122461A publication Critical patent/RU2000122461A/en

Links

Claims (6)

1. Способ подготовки высокоактивных азотнокислых растворов к отверждению, включающий накопление, усреднение растворов по азотной кислоте, упаривание, отгонку азотной кислоты, получение кубового остатка, флюсование, отличающийся тем, что в высокоактивные азотнокислые растворы вводят нитрат натрия и/или гидроксид натрия, и/или фосфорную кислоту.1. A method of preparing highly active nitric acid solutions for curing, including the accumulation, averaging of solutions over nitric acid, evaporation, distillation of nitric acid, obtaining bottoms, fluxing, characterized in that sodium nitrate and / or sodium hydroxide are introduced into highly active nitric acid solutions, and / or phosphoric acid. 2. Способ по п. 1, отличающийся тем, что нитрат натрия вводят в количестве 10-100 г/л. 2. The method according to p. 1, characterized in that the sodium nitrate is administered in an amount of 10-100 g / L. 3. Способ по пп. 1 и 2, отличающийся тем, что гидроксид натрия вводят в количестве 10-50 г/л. 3. The method according to PP. 1 and 2, characterized in that the sodium hydroxide is administered in an amount of 10-50 g / L. 4. Способ по пп. 1-3, отличающийся тем, что фосфорную кислоту вводят в количестве 0,01-1,0 моль/л. 4. The method according to PP. 1-3, characterized in that the phosphoric acid is introduced in an amount of 0.01-1.0 mol / L. 5. Способ по пп. 1-4, отличающийся тем, что в качестве растворов, содержащих нитрат натрия и/или гидроксид натрия, используют кубовый остаток от упаривания среднеактивных жидких отходов и/или концентраты из хранилища жидких радиоактивных отходов. 5. The method according to PP. 1-4, characterized in that as solutions containing sodium nitrate and / or sodium hydroxide, use the bottom residue from the evaporation of medium-level liquid waste and / or concentrates from the storage of liquid radioactive waste. 6. Способ по пп. 1-5, отличающийся тем, что в упаренный раствор вводят конденсат греющего пара в количестве 1 - 5 объемов упаренного раствора. 6. The method according to PP. 1-5, characterized in that the evaporated solution is introduced condensate heating steam in an amount of 1 to 5 volumes of one stripped off solution.
RU2000122461/06A 2000-08-25 2000-08-25 Method for pre-solidifying treatment of high- activity nitric acid solutions RU2189649C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2000122461/06A RU2189649C2 (en) 2000-08-25 2000-08-25 Method for pre-solidifying treatment of high- activity nitric acid solutions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2000122461/06A RU2189649C2 (en) 2000-08-25 2000-08-25 Method for pre-solidifying treatment of high- activity nitric acid solutions

Publications (2)

Publication Number Publication Date
RU2189649C2 RU2189649C2 (en) 2002-09-20
RU2000122461A true RU2000122461A (en) 2002-09-20

Family

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Family Applications (1)

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RU2000122461/06A RU2189649C2 (en) 2000-08-25 2000-08-25 Method for pre-solidifying treatment of high- activity nitric acid solutions

Country Status (1)

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RU (1) RU2189649C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2257626C2 (en) * 2003-04-24 2005-07-27 ФГУП "Производственное объединение "Маяк" Method for recovering alpha-active nitric acid solutions containing trivalent iron
RU2293385C1 (en) * 2005-06-27 2007-02-10 Российская Федерация и лице Федерального агентства по атомной энергии Liquid radioactive waste immobilizing process
RU2317604C2 (en) * 2006-01-19 2008-02-20 Федеральное государственное унитарное предприятие Научно-Производственное Объединение "Радиевый институт им. В.Г. Хлопина" Method for solidifying cesium-137 re-extract
RU2408101C2 (en) * 2009-02-18 2010-12-27 Федеральное государственное унитарное предприятие "Горно-химический комбинат" Waste nuclear fuel processing method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2110857C1 (en) * 1993-09-29 1998-05-10 Горно-химический комбинат Preparing radioactive liquid wastes for recovery

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