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RU2017144973A - METHOD FOR EXTRACTING CHROMIUM (VI) FROM SOLUTIONS WITH OBTAINING IRON-CHROME SEDIMENTS - Google Patents

METHOD FOR EXTRACTING CHROMIUM (VI) FROM SOLUTIONS WITH OBTAINING IRON-CHROME SEDIMENTS Download PDF

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Publication number
RU2017144973A
RU2017144973A RU2017144973A RU2017144973A RU2017144973A RU 2017144973 A RU2017144973 A RU 2017144973A RU 2017144973 A RU2017144973 A RU 2017144973A RU 2017144973 A RU2017144973 A RU 2017144973A RU 2017144973 A RU2017144973 A RU 2017144973A
Authority
RU
Russia
Prior art keywords
solutions
chrome
chromium
sediments
obtaining iron
Prior art date
Application number
RU2017144973A
Other languages
Russian (ru)
Other versions
RU2698810C2 (en
RU2017144973A3 (en
Inventor
Константин Камилевич Фазлутдинов
Вячеслав Филиппович Марков
Алексей Сергеевич Ахлюстин
Лариса Николаевна Маскаева
Original Assignee
Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина"
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 Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" filed Critical Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина"
Priority to RU2017144973A priority Critical patent/RU2698810C2/en
Publication of RU2017144973A3 publication Critical patent/RU2017144973A3/ru
Publication of RU2017144973A publication Critical patent/RU2017144973A/en
Application granted granted Critical
Publication of RU2698810C2 publication Critical patent/RU2698810C2/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00—Compounds of chromium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C02F1/62—Heavy metal compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/70—Treatment of water, waste water, or sewage by reduction
    • C02F1/705—Reduction by metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Inorganic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Claims (1)

Способ извлечения хрома (VI) из хромсодержащих растворов гальванических производств с получением малообводненного железо-хромсодержащего осадка, заключающийся во введении в сернокислый хромсодержащий раствор в качестве восстановителя измельченную стальную стружку, отличающийся тем, что стальную стружку с удельной поверхностью не менее 2 м2/кг, взятую в количестве 800-1500 г/л, предварительно активируют путем последовательной обработки в растворах, содержащих 50-70 г/л NaOH, 30-40 г/л Na3PO4⋅12H2O, 10-15 г/л моющего средства Tide, а затем выдерживают в течение 24 часов в растворе серной кислоты с концентрацией 6-120 мл/л при соотношениях компонентов [Cr(VI))] / [H2SO4 конц] как 0,04-6,6 и температуре 100°C.The method of extracting chromium (VI) from chromium-containing solutions of electroplating production with obtaining low-water iron-chrome-containing sediment, which consists in introducing crushed steel chips into the chromium sulfate solution as a reducing agent, characterized in that steel chips with a specific surface area of at least 2 m 2 / kg, taken in the amount of 800-1500 g / l, pre-activated by sequential processing in solutions containing 50-70 g / l NaOH, 30-40 g / l Na 3 PO 4 ⋅12H 2 O, 10-15 g / l detergent Tide and then stand in those ix 24 hours in sulfuric acid solution with a concentration of 6-120 ml / L ratios of the components [Cr (VI))] / [H 2 SO 4 conc] 0,04-6,6 like and a temperature of 100 ° C.
RU2017144973A 2017-12-20 2017-12-20 Method of extracting chromium (vi) from solutions to obtain iron-chromium precipitate RU2698810C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2017144973A RU2698810C2 (en) 2017-12-20 2017-12-20 Method of extracting chromium (vi) from solutions to obtain iron-chromium precipitate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2017144973A RU2698810C2 (en) 2017-12-20 2017-12-20 Method of extracting chromium (vi) from solutions to obtain iron-chromium precipitate

Publications (3)

Publication Number Publication Date
RU2017144973A3 RU2017144973A3 (en) 2019-06-20
RU2017144973A true RU2017144973A (en) 2019-06-20
RU2698810C2 RU2698810C2 (en) 2019-08-30

Family

ID=66947252

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2017144973A RU2698810C2 (en) 2017-12-20 2017-12-20 Method of extracting chromium (vi) from solutions to obtain iron-chromium precipitate

Country Status (1)

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RU (1) RU2698810C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2731269C1 (en) * 2019-12-16 2020-09-01 Федеральное государственное бюджетное учреждение науки Институт химии Дальневосточного отделения Российской академии наук (ИХ ДВО РАН) Processing method of corrosion inhibitor containing compounds of hexavalent chromium and sea water

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014766A (en) * 1974-10-28 1977-03-29 Mitsubishi Petrochemical Company Limited Electrolytic treatment of waste water
RU2025467C1 (en) * 1992-07-06 1994-12-30 Институт экологии и генетики микроорганизмов Уральского отделения РАН Process for purifying chromium-containing sewage
RU2056367C1 (en) * 1992-08-21 1996-03-20 Халемский Арон Михайлович Method and device for sewage treatment of chromium and heavy ferrous metals
RU2214367C2 (en) * 2001-12-06 2003-10-20 ОАО "Подольский химико-металлургический завод" Method of industrial sewage water treatment and device for method embodiment
RU2573531C2 (en) * 2013-10-14 2016-01-20 Алексей Сергеевич Ахлюстин Recovery of chromium-bearing and etchant effluents (versions)

Also Published As

Publication number Publication date
RU2698810C2 (en) 2019-08-30
RU2017144973A3 (en) 2019-06-20

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Effective date: 20201221