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Metal extractant pilot extraction system

An extraction agent and extraction technology, applied in the direction of improving process efficiency, etc., can solve problems such as complex operation of the system, and achieve the effect of simple operation

Pending Publication Date: 2017-05-31
CHONGQING KOOPPER CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this system can facilitate the separation of the organic phase and the aqueous phase after extraction, the system needs to mix the aqueous solution and the organic solution and then send them to the sedimentation through the feed unit, and the operation of the entire system is still relatively complicated.

Method used

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  • Metal extractant pilot extraction system
  • Metal extractant pilot extraction system
  • Metal extractant pilot extraction system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, the present embodiment discloses a pilot-scale extraction system of a metal extractant, including a multi-layer frame body 10 and three pilot-scale extraction units. In this embodiment, the frame body 10 has four layers, and three pilot-scale extraction units The units are used as the extraction of the aqueous phase, the washing of the organic phase and the back extraction of the organic phase. The pilot extraction unit includes an extraction tank body 20 installed on the frame body 10, an organic phase storage tank 30, a leachate storage tank 40 and a stirring device, wherein the organic phase storage tank 30 and the leachate liquid storage tank 40 are placed on the bottom layer of the frame body 10 , the second layer of the frame body 10 is equipped with a feed liquid pump 60, the extraction tank body 20 is placed on the third layer of the frame body 10, and the stirring device is installed on the fourth layer of the frame body 10; as figu...

Embodiment 2

[0033] like Figure 4 As shown, the difference between this embodiment and Example 1 is: this embodiment includes five pilot extraction units, wherein from left to right, the first pilot extraction unit is used as the washing of the organic phase, and the remaining four In the pilot extraction unit, the second and third pilot extraction units are used for the extraction of the aqueous phase, and the other two pilot extraction units are used for the back extraction of the organic phase. In the above scheme, two sets of extraction-back extraction and one set of washing are included. Using the above-mentioned extraction system has high efficiency and can realize the whole process of extraction-back extraction-washing, and the system of the whole device is good.

[0034] Specific workflow:

[0035] Take embodiment 1 as an example to specify below: as figure 1 , figure 2 and image 3 Shown, when using the pilot plant extraction system of the present invention, take for example...

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Abstract

The invention discloses a metal extractant pilot extraction system. The system comprises a frame and at least one pilot extraction unit. Each pilot extraction unit comprises extraction tank bodies, organic phase storage tanks, leaching solution storage tanks and stirring devices. Each extraction tank body is internally provided with an overflow partition board and a water phase partition board, and the overflow partition board and the water phase partition board divide each extraction tank body into a mixing chamber, a layering chamber and a water phase overflow chamber. Each layering chamber is internally provided with a bottom valve and a height-adjustable organic phase overflow weir. Each water phase overflow chamber is internally provided with a height-adjustable water phase overflow weir. The stirring devices extend into the mixing chambers. The organic phase storage tanks and the leaching solution storage tanks communicate with the interiors of the mixing chambers through liquid inlet pipes. The pilot extraction system is easy to operate and can conduct pilot extraction on metal ions in a leaching solution more systematically.

Description

technical field [0001] The invention belongs to the field of liquid-liquid extraction by using organic compounds, and in particular relates to a pilot extraction system of a metal extractant. Background technique [0002] Metal extractants are widely used in the non-ferrous metal hydrometallurgy industry, such as copper, zinc, cobalt nickel, cadmium, gold and silver, platinum group metals, rare earth and other industries. The functions of the extractant mainly include: separating main metal and impurity metal ions, enriching the concentration of main metal ions, purifying metal ions, changing the type of anion, etc. [0003] In the production process of the metal extractant, the performance and extraction effect of the metal extractant are usually tested. At present, the metal extractant and the water phase to be extracted are usually added to the container, and the extraction is carried out by stirring. After stirring, the organic phase and the water phase are allowed to st...

Claims

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Application Information

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IPC IPC(8): C22B3/02C22B3/26
CPCC22B3/02C22B3/26Y02P10/20
Inventor 徐志刚
Owner CHONGQING KOOPPER CHEM IND