RU2013103349A - METHOD FOR PRODUCING VANADIL SULPHATE - Google Patents
METHOD FOR PRODUCING VANADIL SULPHATE Download PDFInfo
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- RU2013103349A RU2013103349A RU2013103349/05A RU2013103349A RU2013103349A RU 2013103349 A RU2013103349 A RU 2013103349A RU 2013103349/05 A RU2013103349/05 A RU 2013103349/05A RU 2013103349 A RU2013103349 A RU 2013103349A RU 2013103349 A RU2013103349 A RU 2013103349A
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- extraction
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Abstract
1. Способ получения сульфата ванадила, включающий экстракцию из сернокислого раствора ванадия (IV) неразбавленной ди-2-этилгексилфосфорной кислотой в присутствии сульфата натрия с последующей фильтрацией под вакуумом, отличающийся тем, что экстракцию ведут при соотношении водной и органической фазы, равном 2,5÷3,0:1; затем отделяют органическую фазу от водной фазы; охлаждают органическую фазу до 0±0,5°С с выдержкой при этой температуре в течение 20-30 мин, с последующим добавлением к органической фазе ксилола при соотношении, равном 1:0,5÷1,0, и промыванием полученного продукта гексаном.2. Способ по п.1, отличающийся тем, что сульфат натрия присутствует в количестве 0,5±0,8 моль/л.3. Способ по п.1, отличающийся тем, что экстракцию ведут при рН раствора, равном 2,2÷2,8.1. The method of producing vanadyl sulfate, including the extraction of undiluted di-2-ethylhexylphosphoric acid from a sulfate solution of vanadium (IV) in the presence of sodium sulfate, followed by filtration under vacuum, characterized in that the extraction is carried out at a ratio of aqueous and organic phases equal to 2.5 ÷ 3.0: 1; then the organic phase is separated from the aqueous phase; cool the organic phase to 0 ± 0.5 ° C with holding at this temperature for 20-30 minutes, followed by adding xylene to the organic phase at a ratio of 1: 0.5 ÷ 1.0, and washing the resulting product with hexane. 2. The method according to claim 1, characterized in that sodium sulfate is present in an amount of 0.5 ± 0.8 mol / L. The method according to claim 1, characterized in that the extraction is carried out at a solution pH of 2.2 ÷ 2.8.
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RU2013103349/05A RU2525903C1 (en) | 2013-01-24 | 2013-01-24 | Method of obtaining vanadyl sulphate |
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RU2013103349/05A RU2525903C1 (en) | 2013-01-24 | 2013-01-24 | Method of obtaining vanadyl sulphate |
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RU2013103349A true RU2013103349A (en) | 2014-07-27 |
RU2525903C1 RU2525903C1 (en) | 2014-08-20 |
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RU2013103349/05A RU2525903C1 (en) | 2013-01-24 | 2013-01-24 | Method of obtaining vanadyl sulphate |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023093046A1 (en) * | 2021-11-25 | 2023-06-01 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for preparing high-purity vanadyl sulfate solution from recovered titanium tetrachloride refining tailings |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002193620A (en) * | 2000-10-16 | 2002-07-10 | Chiyoda Corp | Method of recovering vanadium |
JP4339647B2 (en) * | 2003-08-11 | 2009-10-07 | 新日本石油株式会社 | Method for producing tetravalent vanadyl sulfate aqueous solution |
RU2269487C2 (en) * | 2004-05-11 | 2006-02-10 | Институт химии твердого тела Уральского отделения Российской Академии наук | Method of extraction of vanadium |
CN102683733B (en) * | 2012-04-12 | 2014-07-09 | 广州有色金属研究院 | Preparation method for vanadyl sulfate electrolyte of all-vanadium flow battery |
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2013
- 2013-01-24 RU RU2013103349/05A patent/RU2525903C1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023093046A1 (en) * | 2021-11-25 | 2023-06-01 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for preparing high-purity vanadyl sulfate solution from recovered titanium tetrachloride refining tailings |
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RU2525903C1 (en) | 2014-08-20 |
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Effective date: 20170125 |