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RU2004116098A - METHOD FOR REMOVING SILVER FROM WASTE SORBENTS CONTAINING IODINE-129 - Google Patents

METHOD FOR REMOVING SILVER FROM WASTE SORBENTS CONTAINING IODINE-129 Download PDF

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Publication number
RU2004116098A
RU2004116098A RU2004116098/02A RU2004116098A RU2004116098A RU 2004116098 A RU2004116098 A RU 2004116098A RU 2004116098/02 A RU2004116098/02 A RU 2004116098/02A RU 2004116098 A RU2004116098 A RU 2004116098A RU 2004116098 A RU2004116098 A RU 2004116098A
Authority
RU
Russia
Prior art keywords
silver
sorbent
containing iodine
waste
hydrazine
Prior art date
Application number
RU2004116098/02A
Other languages
Russian (ru)
Other versions
RU2277599C2 (en
Inventor
Сергей Иванович Ровный (RU)
Сергей Иванович Ровный
тин Николай Петрович П (RU)
Николай Петрович Пятин
Игорь Александрович Истомин (RU)
Игорь Александрович Истомин
Original Assignee
ФГУП "Производственное объединение "Ма к" (RU)
ФГУП "Производственное объединение "Маяк"
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 ФГУП "Производственное объединение "Ма к" (RU), ФГУП "Производственное объединение "Маяк" filed Critical ФГУП "Производственное объединение "Ма к" (RU)
Priority to RU2004116098/02A priority Critical patent/RU2277599C2/en
Publication of RU2004116098A publication Critical patent/RU2004116098A/en
Application granted granted Critical
Publication of RU2277599C2 publication Critical patent/RU2277599C2/en

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Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Removal Of Specific Substances (AREA)

Claims (2)

1. Способ извлечения серебра из отработанных сорбентов, содержащих йод - 129, включающий восстановление серебра до металлического за счет обработки сорбента щелочным раствором гидразин-нитрата с концентрацией по щелочи от 30 до 100 г/л и гидразину от 15 до 50 г/л в течение не менее 60 мин при температуре от 75 до 80°С; промывку сорбента водой до полного устранения следов щелочи и гидразина; обработку сорбента азотной кислотой нагретой до 80°С в течение 30 мин.1. The method of extracting silver from spent sorbents containing iodine-129, including the recovery of silver to metal by treating the sorbent with an alkaline solution of hydrazine nitrate with an alkali concentration of from 30 to 100 g / l and hydrazine from 15 to 50 g / l for not less than 60 minutes at a temperature of 75 to 80 ° C; washing the sorbent with water until the traces of alkali and hydrazine are completely eliminated; treatment of the sorbent with nitric acid heated to 80 ° C for 30 minutes 2. Способ извлечения серебра по п.1, отличающийся тем, что сорбент, содержащий металлическое серебро, обрабатывается азотной кислотой с концентрацией от 3 до 10 моль/л.2. The method of silver extraction according to claim 1, characterized in that the sorbent containing metallic silver is treated with nitric acid with a concentration of from 3 to 10 mol / L.
RU2004116098/02A 2004-05-26 2004-05-26 Method of extraction of silver from the waste sorbents containing iodine-129 RU2277599C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2004116098/02A RU2277599C2 (en) 2004-05-26 2004-05-26 Method of extraction of silver from the waste sorbents containing iodine-129

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2004116098/02A RU2277599C2 (en) 2004-05-26 2004-05-26 Method of extraction of silver from the waste sorbents containing iodine-129

Publications (2)

Publication Number Publication Date
RU2004116098A true RU2004116098A (en) 2006-02-27
RU2277599C2 RU2277599C2 (en) 2006-06-10

Family

ID=36113972

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2004116098/02A RU2277599C2 (en) 2004-05-26 2004-05-26 Method of extraction of silver from the waste sorbents containing iodine-129

Country Status (1)

Country Link
RU (1) RU2277599C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2948033B1 (en) * 2009-07-20 2011-08-05 Commissariat Energie Atomique METHOD FOR REGENERATING A SOLID IODE FILTER
RU2657272C1 (en) * 2017-05-16 2018-06-09 Федеральное Государственное Унитарное Предприятие "Горно - Химический Комбинат" (Фгуп "Гхк") Method for purification of nitric acid-acinoid-containing solutions from silver

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3632336A (en) * 1969-07-25 1972-01-04 Battelle Development Corp Silver recovery process
RU2154686C1 (en) * 1999-02-22 2000-08-20 Петрова Елена Арсеньевна Method of preparation of used catalysts including carrier and containing at least one noble metal for subsequent extraction of this metal
RU2167212C2 (en) * 1999-06-28 2001-05-20 Институт химии и технологии редких элементов и минерального сырья им.И.В.Тананаева Кольского научного центра РАН Method of processing material based on carbon and containing noble metal
FR2822287B1 (en) * 2001-03-13 2003-12-12 Commissariat Energie Atomique PROCESS FOR DECONTAMINATING SOLID IODE FILTERS

Also Published As

Publication number Publication date
RU2277599C2 (en) 2006-06-10

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MM4A The patent is invalid due to non-payment of fees

Effective date: 20200527