RU2013148870A - METHOD FOR EXTRACTION OF CHROMIUM FROM WASTE PRODUCED CHROMIUM COMPOUNDS - Google Patents
METHOD FOR EXTRACTION OF CHROMIUM FROM WASTE PRODUCED CHROMIUM COMPOUNDS Download PDFInfo
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- RU2013148870A RU2013148870A RU2013148870/05A RU2013148870A RU2013148870A RU 2013148870 A RU2013148870 A RU 2013148870A RU 2013148870/05 A RU2013148870/05 A RU 2013148870/05A RU 2013148870 A RU2013148870 A RU 2013148870A RU 2013148870 A RU2013148870 A RU 2013148870A
- Authority
- RU
- Russia
- Prior art keywords
- chromium
- sludge
- solid
- sulfuric acid
- exchange resin
- Prior art date
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- Treatment Of Water By Ion Exchange (AREA)
- Removal Of Specific Substances (AREA)
- Treatment Of Sludge (AREA)
Abstract
Способ извлечения хрома из отходов производства хромовых соединений, включающий обработку водной суспензии шлама серной кислотой, отличающийся тем, что водную суспензию шлама готовят путем предварительного измельчения шлама и разубоживания его водой до соотношения твердое: жидкое 1:(3-10), обработку серной кислотой производят до достижения рН 7-9, в образующуюся пульпу добавляют высокоосновной анионит до массового соотношения высокоосновный анионит: твердое 1:(1-10) и проводят сорбцию шестивалентного хрома в течение 0,5-5 часов.A method of extracting chromium from waste products of chromium compounds, comprising treating an aqueous suspension of sludge with sulfuric acid, characterized in that the aqueous suspension of sludge is prepared by preliminary grinding the sludge and diluting it with water to a ratio of solid: liquid 1: (3-10), treatment with sulfuric acid is carried out until pH 7-9 is reached, highly basic anion exchange resin is added to the resulting pulp to a mass ratio of highly basic anion exchange resin: solid 1: (1-10) and hexavalent chromium is sorbed for 0.5-5 hours.
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU2013148870/05A RU2013148870A (en) | 2013-10-31 | 2013-10-31 | METHOD FOR EXTRACTION OF CHROMIUM FROM WASTE PRODUCED CHROMIUM COMPOUNDS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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RU2013148870/05A RU2013148870A (en) | 2013-10-31 | 2013-10-31 | METHOD FOR EXTRACTION OF CHROMIUM FROM WASTE PRODUCED CHROMIUM COMPOUNDS |
Publications (1)
Publication Number | Publication Date |
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RU2013148870A true RU2013148870A (en) | 2015-05-10 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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RU2013148870/05A RU2013148870A (en) | 2013-10-31 | 2013-10-31 | METHOD FOR EXTRACTION OF CHROMIUM FROM WASTE PRODUCED CHROMIUM COMPOUNDS |
Country Status (1)
Country | Link |
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RU (1) | RU2013148870A (en) |
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2013
- 2013-10-31 RU RU2013148870/05A patent/RU2013148870A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FA92 | Acknowledgement of application withdrawn (lack of supplementary materials submitted) |
Effective date: 20150318 |