Method for extracting molybdenum from molybdenum-containing high-concentration acidic lixivium and application of extraction agent

An acid leachate, high-concentration technology, applied in the field of molybdenum extraction, can solve the problems of complex process, high cost, and inexhaustible removal of impurities when extracting molybdenum, and achieves the effects of simple operation, high recovery rate, and reduction of neutralization procedures.
CN103243218AActive Publication Date: 2013-08-14CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CENT SOUTH UNIV
Publication Date
2013-08-14

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Abstract

The invention discloses a method for extracting molybdenum from molybdenum-containing high-concentration acid lixivium and an application of an extraction agent. The method comprises the following steps of: directly extracting the molybdenum-containing high-concentration acid lixivium by utilizing the extraction agent; and obtaining ammonium molybdate or sodium molybdate solution by carrying out back-extraction on an extracted loaded organic phase by utilizing ammonia water or NaOH solution to obtain ammonium molybdate or sodium molybdate solution. The application is used for selectively extracting the molybdenum from the molybdenum-containing high-concentration acid lixivium so as to separate the molybdenum from impurities such as phosphorus, arsenic, silicon, iron, aluminum, calcium and magnesium in acid solution. The method disclosed by the invention is short in process, simple in operation and low in cost; and the extraction agent is used for extracting the molybdenum from the molybdenum-containing high-concentration acid lixivium, is high in extraction efficiency of the molybdenum and can be industrially applied.
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Description

technical field

[0001] The invention relates to a method for extracting molybdenum from a molybdenum-containing high-concentration acidic leaching solution and the application of an extractant, belonging to the field of molybdenum extraction. Background technique

[0002] Molybdenum-containing scheelite medium ore adopts the method of chemical beneficiation to produce high-grade scheelite concentrate, and at the same time, a large amount of chemical beneficiation acid leach solution containing molybdenum, tungsten, phosphorus, arsenic, etc. will be produced. Molybdenum-containing scheelite concentrate is produced by acid decomposition method to produce tungstic acid, and the acid mother liquor also contains a large amount of molybdenum. The direct discharge of these molybdenum-containing acid solutions not only wastes valuable metals, but also seriously pollutes the environment.

[0003] The treatment methods for this type of molybdenum acid-containing immersion solution mai...

Claims

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