SU273932A1 - Method for extraction separation of tungsten and molybdenum - Google Patents

Method for extraction separation of tungsten and molybdenum

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Publication number
SU273932A1
SU273932A1 SU6901336266A SU1336266A SU273932A1 SU 273932 A1 SU273932 A1 SU 273932A1 SU 6901336266 A SU6901336266 A SU 6901336266A SU 1336266 A SU1336266 A SU 1336266A SU 273932 A1 SU273932 A1 SU 273932A1
Authority
SU
USSR - Soviet Union
Prior art keywords
molybdenum
tungsten
extraction
extraction separation
solution
Prior art date
Application number
SU6901336266A
Other languages
Russian (ru)
Inventor
А.Н. Зеликман
Г.М. Вольдман
В.С. Кагерманьян
Original Assignee
Московский Ордена Трудового Красного Знамени Институт Стали И Сплавов
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.)
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Application filed by Московский Ордена Трудового Красного Знамени Институт Стали И Сплавов filed Critical Московский Ордена Трудового Красного Знамени Институт Стали И Сплавов
Priority to SU6901336266A priority Critical patent/SU273932A1/en
Application granted granted Critical
Publication of SU273932A1 publication Critical patent/SU273932A1/en

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Description

(54) СПОСОБ ЭКСТРАКЦИОННОГО РАЗДЕЛЕН1-1Я В . ЛЬФРАМА(54) METHOD OF EXTRACTION DIVIDED 1-1. LFRAMA

И МОЛИБДЕНАAnd molybdenum

Изобретение относитс  к области гидрометаллургии вольфрама и молибдена.This invention relates to the field of hydrometallurgy of tungsten and molybdenum.

Известен способ экстракционного разделени  вольфрама и молибдена, при когором молибден экстрагируют органическими эксг- рагентами, например ацетофеноном из сол нокислой пульпы вольфрамовой кислоты. Однако этот метод требует очень большого расхода сол ной кислоты (8т технической кислоты на 1 т концентрата).The method is known for the extraction separation of tungsten and molybdenum, in the case of which the molybdenum is extracted with organic extractants, for example acetophenone, from hydrochloric acid pulp of tungstic acid. However, this method requires a very large consumption of hydrochloric acid (8 tons of technical acid per 1 ton of concentrate).

По предлагаемому способу экстракционное разделение вольфрама и молибдена провод т в присутствии пррекиси водорода.According to the proposed method, the extraction separation of tungsten and molybdenum is carried out in the presence of hydrogen proroxide.

Это создает услови , обеспечивающие возможность полного разделени  вольфрама и молибден а из кислых растворов в широком инвале кислотности и улучшает показатели процеThis creates conditions that allow the complete separation of tungsten and molybdenum from acidic solutions in a wide range of acidity and improves process performance.

Сущность предлагаемого способа заключаетс  в следующем.The essence of the proposed method is as follows.

В раствор ввод т перекись водорода. В присутствии последней вольфрамова  кислота не выпадает в осадок при любой кислотности . Кроме того, снижаетс  степень полимеризации вольфрама и молибдена в растворе . Экстракционное разделение вольфрама Hydrogen peroxide is introduced into the solution. In the presence of the latter, tungstic acid does not precipitate at any acidity. In addition, the degree of polymerization of tungsten and molybdenum in solution decreases. Extraction separation of tungsten

  молибдена, наход щихс  в таких растворах , возможно пр: использовании органических экстрагентов различных классов.molybdenum contained in such solutions is possible: using organic extractants of various classes.

Claims (1)

Пример. Из раствора, содержащего 19,0 г/л W и 1 г/л Мо а виде вольфрамата и молибдата натри  (мол рное соот- ношение вольфрама и молибдена 10 : 1) и 14,0 г/л Н,02 (пол рное отношение H,(W + MO )4:1), этодаисленного азотной кислотой до рН 0,5-1,0, др однократной экстракции равным объемом неразбавленного трибутилфосфата iiSBTieKaeTC 79% молибдена и практически не извлелг-эа- с  вольфрам. После трех последоваге.г-къ1х экстракций, равными объемами свежего эк- страгента содержаш)б молибдена в растворе уменьшаете до - -QjOi г/л, тсгла tisii содержание , вольфрамй. до ,5 г/л„ Формула изобретени  Способ экстракционного разделени  золь .фрама и молибдена органическими SKCTparettralsfH из кислых растворов, отличающийс  тем, что. с целью улучшени  показателей процесса, экстракцию провод т в присутствии Перекиси водорода.Example. From a solution containing 19.0 g / l W and 1 g / l Mo and in the form of tungstate and sodium molybdate (molar ratio of tungsten and molybdenum 10: 1) and 14.0 g / l H, 02 (polar ratio H, (W + MO) 4: 1), ethodisused with nitric acid to a pH of 0.5-1.0, and another single extraction with an equal volume of undiluted tributyl phosphate iiSBTieKaeTC 79% of molybdenum and practically no extraction of tungsten. After three consecutive gr-h1 extraction, equal volumes of fresh extractant containing) b of molybdenum in solution, reduce to - -QjOi g / l, tsgii tisii content, tungsten. up to 5 g / l. Formula of the invention. A method of extraction separation of a frame and molybdenum organic sol. SKCTparettralsfH from acidic solutions, characterized in that. in order to improve the process performance, extraction is carried out in the presence of hydrogen peroxide.
SU6901336266A 1969-05-27 1969-05-27 Method for extraction separation of tungsten and molybdenum SU273932A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU6901336266A SU273932A1 (en) 1969-05-27 1969-05-27 Method for extraction separation of tungsten and molybdenum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU6901336266A SU273932A1 (en) 1969-05-27 1969-05-27 Method for extraction separation of tungsten and molybdenum

Publications (1)

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SU273932A1 true SU273932A1 (en) 1977-08-25

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SU6901336266A SU273932A1 (en) 1969-05-27 1969-05-27 Method for extraction separation of tungsten and molybdenum

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002097144A3 (en) * 2001-05-25 2003-05-01 Enitecnologie Spa Process for selectively removing molybdenum from solutions containing molydenum and vanadium using a xanthate complexant

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002097144A3 (en) * 2001-05-25 2003-05-01 Enitecnologie Spa Process for selectively removing molybdenum from solutions containing molydenum and vanadium using a xanthate complexant
GB2402126A (en) * 2001-05-25 2004-12-01 Eni Spa Process for selectively removing molybdenum from liquid mixtures containing it together with vanadium
GB2402126B (en) * 2001-05-25 2005-06-08 Eni Spa Process for selectively removing molybdenum from liquid mixtures containing it together with vanadium
US7255795B2 (en) 2001-05-25 2007-08-14 Eni S.P.A. Process for selectively removing molybdenum from liquid mixtures containing it together with vanadium

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