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Continuous extraction apparatus for mineral bacteria leachate

An extraction device and leachate technology, which is applied in the extraction field of laboratory copper ore bacterial leachate, can solve the problems of non-continuous operation, low extraction rate, and inability to expand the experimental scale, etc., to achieve convenient control, high extraction efficiency, and save extraction agent Effect

Inactive Publication Date: 2008-02-27
CENT SOUTH UNIV
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  • Summary
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Problems solved by technology

Most of the laboratories now use separatory funnels for level-by-level extraction, which can neither operate continuously nor expand the scale of the experiment, and the extraction rate is not high.

Method used

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  • Continuous extraction apparatus for mineral bacteria leachate

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Embodiment Construction

[0011] The device of the present invention is used to carry out extraction experiments on the circulating leaching liquid of a copper ore bacterial heap leaching test in a certain mine in my country. Concentrations of various components of the feed liquid are (g / L): Cu 1.12, Fe 0.74, Zn 3.53, pH 2.22. The extractant concentration is 5%, the diluent is sulfonated kerosene, and the stripping agent is 180g / L H 2 SO 4 solution. Other reaction conditions are: mixing time 4min, ratio (O / A) 2:3, equilibrium pH 2.5. The final extraction rate of copper reaches more than 98%. The extraction process is as follows:

[0012] The device is composed of three extraction tanks, and adopts the principle of combining countercurrent extraction and back extraction. The leachate is extracted into the loaded organic phase through the primary extraction tank 1 and the secondary extraction tank 2, while the extractant is extracted by the secondary extraction tank. Tank 2 enters, and after flowing...

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Abstract

The invention discloses a continuous extraction device of mineral bacteria leachate, which is characterized by the following: supplying first grade extractive tank, second grade extractive tank and back extractive tank; dividing each extractive tank to mixing chamber, refining chamber and separating chamber; connecting mixing chamber of first grade extractive tank with separating chamber of second extractive tank; connecting separating chamber of first grade extractive tank with mixing chamber of the second grade extractive tank and back extractive tank; connecting the other side of the mixing chamber of second grade extractive tank with separating chamber of back extractive tank. This invention can be operated conveniently, which can realize high extraction rate.

Description

technical field [0001] The invention relates to a continuous extraction device for mineral bacterial leaching liquid, especially suitable for extraction of laboratory copper ore bacterial leaching liquid. Background technique [0002] Bacterial leaching can be divided into three stages: leaching, extraction and electrowinning. Extraction is to use the difference in the binding force of metal ions in various solvents to separate and concentrate them for electrowinning to produce high-purity metals. Most of the laboratories now use separatory funnels for extraction step by step, which can neither operate continuously nor expand the scale of the experiment, and the extraction rate is not high. Contents of the invention [0003] In order to overcome the deficiencies of existing extraction devices, the invention provides a continuous extraction device for mineral bacteria leachate. [0004] A continuous extraction device for mineral bacterial leaching liquid, including three ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B3/26B01D11/04
CPCY02P10/20
Inventor 柳建设邱冠周夏海波葛玉卿李邦梅曾嘉
Owner CENT SOUTH UNIV
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