An extractant recovery device

Abstract

The utility model provides an extraction agent recovery device, including transfer tank, oil storage tank and extraction reaction unit, the transfer tank is used for the water phase of butt joint, the overflow port of transfer tank is connected with oil storage tank, the outlet of oil storage tank is connected with extraction reaction unit. The utility model provides an extraction agent recovery device, through transfer tank to the part of oil phase that dissolves in water phase carries out oil water separation, and the separated oil phase is guided into extraction reaction unit again, and the extraction agent in oil phase carries out the use again, avoids this part of extraction agent to be wasted, thereby has reduced production cost.

Description

Technical Field

[0001] This utility model relates to the field of extraction and recovery technology, and in particular to an extractant recovery device. Background Technology

[0002] In the hydrometallurgical production of nickel and cobalt salts, the extractant plays a role in forming an extractable compound with the metal being extracted through a chemical reaction, which is then extracted into the organic phase. It can also be used in a chemical reaction to extract the metal from the organic phase into the aqueous phase, thereby achieving metal purification and enrichment. However, in this process, the extractant and the aqueous phase are mutually soluble, which affects the extraction process and product quality. Currently, preventing the mutual dissolution of the extractant and the aqueous phase involves providing sufficient settling time for both, ensuring that most of the extractant separates from the aqueous phase.

[0003] However, some extractant remains dissolved in the oil. If existing technologies such as resin columns or activated carbon are used to remove the oil, this will lead to a waste of the extractant and increase production costs. Utility Model Content

[0004] In view of this, it is necessary to provide an extractant recovery device that can solve the problem of extractant waste in the prior art.

[0005] This utility model provides an extractant recovery device, comprising: The system includes a transfer tank, an oil storage tank, and an extraction reaction device. The overflow port of the transfer tank is connected to the oil storage tank, and the outlet of the oil storage tank is connected to the extraction reaction device.

[0006] In other feasible embodiments, the transfer trough includes a trough body and an overflow dam. The top of the trough body is uncovered and hollow to form a receiving area. The overflow dam is vertically arranged in the receiving area and fixed to the inner wall of the trough body. The height of the overflow dam is slightly lower than the height of the inner wall of the trough body. The overflow dam divides the receiving area into a first area and a second area. The first area and the second area are connected through the space above the overflow dam.

[0007] In other feasible embodiments, the tank is provided with a liquid inlet and a water outlet communicating with the first region, and the tank is provided with an oil outlet communicating with the second region.

[0008] In other feasible embodiments, the liquid inlet is located on the side wall of the tank near the bottom.

[0009] In other feasible embodiments, the liquid inlet, the water outlet, and the oil outlet are all equipped with openable and closable solenoid valves.

[0010] In other feasible embodiments, the oil storage tank is provided with an oil inlet at the top and an oil outlet at the bottom, the oil inlet is connected to the oil outlet, and the oil outlet is connected to the extraction reaction device.

[0011] In other feasible embodiments, an oil pump is also provided between the oil storage tank and the oil outlet, the inlet of the oil pump is connected to the oil outlet, and the outlet of the oil pump is connected to the oil inlet.

[0012] In other feasible embodiments, the extraction reaction apparatus is provided with a liquid addition pipe for adding acid, and the liquid addition pipe is connected to the oil outlet.

[0013] In other feasible embodiments, the liquid addition pipe includes a main pipe, a first auxiliary pipe, and a second auxiliary pipe. One end of the main pipe is connected to the first auxiliary pipe and the second auxiliary pipe, and the other end is connected to the extraction reaction device. The other end of the first auxiliary pipe is connected to the oil outlet, and the other end of the second auxiliary pipe forms an acid addition port.

[0014] In other feasible embodiments, an activated carbon filter canister is also included, the bottom of which is provided with an inlet communicating with the outlet.

[0015] The beneficial effects of this utility model are as follows: This invention includes a transfer tank, an oil storage tank, and an extraction reaction device. The transfer tank is used to receive the aqueous phase, and its overflow port is connected to the oil storage tank. The outlet of the oil storage tank is connected to the extraction reaction device. The extractant recovery device provided by this invention separates the dissolved oil phase from the aqueous phase using the transfer tank, and then reintroduces the separated oil phase into the extraction reaction device, reusing the extractant in the oil phase. This avoids wasting the extractant and reduces production costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the extractant recovery device in this utility model; Figure 2 for Figure 1 A schematic cross-sectional view of the activated carbon adsorption tank; Wherein: 1-transfer tank, 11-tank body, 11a-liquid inlet, 11b-water outlet, 11c-oil outlet, 12-overflow dam; 2-Oil storage tank, 21-Oil inlet, 22-Oil outlet; 3-Extraction reaction apparatus, 31-Liquid addition pipe, 311-Main pipeline, 312-First auxiliary pipeline, 312a-One-way solenoid valve, 313-Second auxiliary pipeline; 4-Oil pump; 5-Activated carbon filter canister. Detailed Implementation

[0018] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0019] like Figure 1-2 As shown, an embodiment of this utility model provides an extractant recovery device, which includes: a transfer tank 1, an oil storage tank 2, and an extraction reaction device 3. The transfer tank 1 is used to receive the aqueous phase, the overflow port of the transfer tank 1 is connected to the oil storage tank 2, and the outlet of the oil storage tank 2 is connected to the extraction reaction device 3.

[0020] In use, the aqueous phase is first introduced into the transfer tank 1 for oil-water separation, while the oil floats on the water and flows through the overflow port to the oil storage tank 2 for storage. The oil storage tank 2 then introduces the oil phase containing the extractant into the extraction reaction device 3 to reuse the extractant, thus avoiding waste and reducing production costs.

[0021] Specifically, the transfer trough 1 includes a trough body 11 and an overflow dam 12. The trough body 11 has no top cover and is hollow, forming a receiving area. The overflow dam 12 is vertically disposed within the receiving area and fixed to the inner wall of the trough body 11. The height of the overflow dam 12 is slightly lower than the height of the inner wall of the trough body 11. The overflow dam 12 divides the receiving area into a first area and a second area, which are connected by the space above the overflow dam 12.

[0022] Specifically, the tank 11 has an inlet 11a and an outlet 11b communicating with the first region, and an oil outlet 11c communicating with the second region. In use, the aqueous phase enters the first region through the inlet 11a, settles and stratifies within the first region, while the oil floats to the top of the water and overflows into the second region through the area above the overflow dam 12, and is discharged from the oil outlet 11c.

[0023] Furthermore, the liquid inlet 11a is located on the side wall of the tank 11 near the bottom.

[0024] Furthermore, the liquid inlet 11a, the water outlet 11b, and the oil outlet 11c are all equipped with openable and closable solenoid valves.

[0025] Specifically, the oil storage tank 2 is provided with an oil inlet 21 at the top and an oil outlet 22 at the bottom. The oil inlet 21 is connected to the oil outlet 11c, and the oil outlet 22 is connected to the extraction reaction device 3.

[0026] Furthermore, an oil pump 4 is provided between the oil storage tank 2 and the oil outlet 11c. The inlet of the oil pump 4 is connected to the oil outlet 11c, and the outlet of the oil pump 4 is connected to the oil inlet 21. In use, the oil pump 4 is used to pump the oil in the second area into the oil storage tank 2.

[0027] Specifically, the extraction reaction device 3 is equipped with a liquid addition pipe 31 for adding acid, and the liquid addition pipe 31 is connected to the oil outlet 22.

[0028] Furthermore, the liquid addition pipe 31 includes a main pipe 311, a first auxiliary pipe 312, and a second auxiliary pipe 313. One end of the main pipe 311 is connected to the first auxiliary pipe 312 and the second auxiliary pipe 313, and the other end is connected to the extraction reaction device 3. The other end of the first auxiliary pipe 312 is connected to the oil outlet 22, and the other end of the second auxiliary pipe 313 forms an acid addition port.

[0029] Furthermore, the first auxiliary pipeline 312 is equipped with a one-way solenoid valve 312a, which only allows liquid to flow from the oil storage tank 2 to the extraction reaction device 3. The purpose of this design is to prevent acid from entering the oil storage tank 2 when acid is added.

[0030] In this embodiment, an activated carbon filter tank 5 is also included, and the bottom of the activated carbon filter tank 5 is provided with an inlet communicating with the outlet 11b. The activated carbon filter tank 5 is used to filter the stratified water in the transfer tank 1.

[0031] In the description of this application, it should be noted that the terms "upper" and "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0032] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model.

Claims

1. An extractant recovery device, characterized in that, include: The system includes a transfer tank, an oil storage tank, and an extraction reaction device. The overflow port of the transfer tank is connected to the oil storage tank, and the outlet of the oil storage tank is connected to the extraction reaction device.

2. The extractant recovery device as described in claim 1, characterized in that, The transfer trough includes a trough body and an overflow dam. The top of the trough body is uncovered and hollow to form a receiving area. The overflow dam is vertically installed in the receiving area and fixed to the inner wall of the trough body. The height of the overflow dam is slightly lower than the height of the inner wall of the trough body. The overflow dam divides the receiving area into a first area and a second area. The first area and the second area are connected through the space above the overflow dam.

3. The extractant recovery device as described in claim 2, characterized in that, The tank is provided with a liquid inlet and a water outlet that communicate with the first area, and an oil outlet that communicates with the second area.

4. The extractant recovery device as described in claim 3, characterized in that, The liquid inlet is located on the side wall of the tank near the bottom.

5. The extractant recovery device as described in claim 4, characterized in that, The liquid inlet, the water outlet, and the oil outlet are all equipped with solenoid valves that can be opened and closed.

6. The extractant recovery device as described in claim 5, characterized in that, The oil storage tank is provided with an oil inlet at the top and an oil outlet at the bottom. The oil inlet is connected to the oil outlet and the oil outlet is connected to the extraction reaction device.

7. The extractant recovery device as described in claim 6, characterized in that, An oil pump is also provided between the oil storage tank and the oil outlet. The inlet of the oil pump is connected to the oil outlet, and the outlet of the oil pump is connected to the oil inlet.

8. The extractant recovery device as described in claim 7, characterized in that, The extraction reaction device is equipped with a liquid addition pipe for adding acid, and the liquid addition pipe is connected to the oil outlet.

9. The extractant recovery device as described in claim 8, characterized in that, The liquid addition pipe includes a main pipe, a first auxiliary pipe, and a second auxiliary pipe. One end of the main pipe is connected to the first auxiliary pipe and the second auxiliary pipe, and the other end is connected to the extraction reaction device. The other end of the first auxiliary pipe is connected to the oil outlet, and the other end of the second auxiliary pipe forms an acid addition port.

10. The extractant recovery device as described in claim 3, characterized in that, It also includes an activated carbon filter canister, the bottom of which is provided with an inlet that communicates with the outlet.

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