Device for extracting bromine from concentrated high-nitrate liquid and utilizing resources

Abstract

The utility model relates to the technical field of bromine preparation, in particular to a concentrated high-nitrate liquid bromine extraction and resource utilization device which comprises a primary extraction device, the bromine outlet of the primary extraction device is connected with the input end of the bromine storage barrel, and the bromine-nitrate-containing liquid outlet of the primary extraction device is connected with the liquid input end of the secondary bromine extraction device; the primary extraction device comprises a shell, and a cathode chamber, an anode chamber and a bromine collection chamber are sequentially arranged in the shell from top to bottom; the top surface of the shell is provided with a hydrogen outlet and a mother liquor inlet, and the side edge of the shell is provided with a charging hole and an alkaline nitrate liquid outlet; the bromine collecting chamber is used for storing deposited bromine, the output end of the bromine collecting chamber is connected with the input end of the bromine storage barrel, and the bromine can be deposited in the bromine collecting chamber through the design that the cathode chamber, the anode chamber and the bromine collecting chamber are sequentially arranged in the shell from top to bottom and the situation that the sealing performance of bromine is higher than that of other raw materials; therefore, after a certain amount of the liquid is accumulated, the liquid is extracted.

Description

TECHNICAL FIELD

[0001] The utility model relates to bromine production technology field especially to a kind of concentrated high nitrate solution bromine extraction and resource utilization device. BACKGROUND

[0002] With the continuous exploitation of underground brine in salt mine area of our country, bromine resource is gradually scarce, domestic bromine production can not meet domestic demand, and a large amount of bromine needs to be imported every year. Bromine is mainly contained in ocean, salt lake brine and underground salt rock, and the bromine content is low. Water vapor distillation method is suitable for high-concentration bromine liquid extraction, but the extraction rate of bromine is low, and the residual bromine content in liquid is high. Low-concentration bromine liquid adopts air blowing method to extract bromine, which is complex, high in energy consumption and cost, and low in bromine extraction rate. Therefore, it is of great practical significance to fully utilize high nitrate solution for concentration and bromine extraction production.

[0003] The anode material and cathode material of the electrolytic bromine production device in the prior art are located in the same plane, so that the produced bromine is dispersed around the materials, and the separation of bromine needs to be completed after the reaction, and then the bromine and bromine-containing nitrate solution can be separated and extracted. New raw materials are added for electrolysis reaction after cleaning, which cannot realize continuous production and is low in production efficiency. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the problem of waste of resources caused by the discharge of waste water containing unextracted bromine after one-time bromine extraction from brine in the prior art, and to provide a concentrated high nitrate solution bromine extraction and resource utilization device.

[0005] The technical solution adopted by the utility model to solve the technical problem is a concentrated high nitrate solution bromine extraction and resource utilization device, which comprises a primary extraction device.

[0006] The primary extraction device is used for preliminary extraction of bromine, and the bromine outlet of the primary extraction device is connected with the input end of a bromine storage barrel, and the bromine-containing nitrate solution outlet of the primary extraction device is connected with the liquid input end of a secondary bromine extraction device.

[0007] The primary extraction device comprises a shell, and the shell comprises a cathode chamber, an anode chamber and a bromine collection chamber from top to bottom.

[0008] The top surface of the shell is provided with a hydrogen gas outlet and a mother liquor inlet which communicate with the cathode chamber, and the side edge of the shell is provided with a feeding port and an alkaline nitrate solution outlet which communicate with the cathode chamber.

[0009] The bromine collection chamber is used for storing deposited bromine, and the output end of the bromine collection chamber is connected with the input end of the bromine storage barrel.

[0010] Further comprising that the cathode material and the anion exchange film are arranged in the cathode chamber, and the anion exchange film separates the cathode material and the feeding port;

[0011] The cation exchange film is arranged in the shell and separates the cathode chamber and the anode chamber, the anode material is arranged in the anode chamber, the bromine-containing nitrate solution outlet is arranged on the shell and communicates with the anode chamber, and the output end of the bromine-containing nitrate solution outlet on the shell is connected with the liquid input end of the secondary bromine extraction device.

[0012] Further comprising that the primary extraction device comprises a power supply, the power supply is connected with the cathode material and the anode material, and the power supply is used for supplying power for the cathode material and the anode material.

[0013] Further comprising that the bromine outlet is located at the bottom surface of the shell and communicates with the bromine collection chamber.

[0014] Further comprising that the bromine-containing nitrate solution outlet communicates with the anode chamber.

[0015] Further comprising that the outlet end of the alkaline nitrate solution outlet penetrates through the anion exchange film and communicates with the region where the cathode material is located.

[0016] The device has the advantages that: the device is designed in a manner that the cathode chamber, the anode chamber and the bromine collection chamber are sequentially arranged from top to bottom in the shell, and the bromine can be deposited in the bromine collection chamber by utilizing the high sealing property of bromine itself compared with other raw materials, so that the bromine can be extracted after a certain amount is accumulated, continuous production is realized, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The device will be further described below in combination with the drawings and embodiments.

[0018] Figure 1 is a structural schematic view of the device.

[0019] In the drawings: 1, primary extraction device, 11, shell, 111, cathode chamber, 112, anode chamber, 113, bromine collection chamber, 114, hydrogen outlet, 115, mother liquor inlet, 116, feeding port, 117, alkaline nitrate solution outlet, 118, bromine-containing nitrate solution outlet, 119, bromine outlet 119, 12, cathode material, 13, anion exchange film, 14, cation exchange film, 15, anode material. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0021] like Figure 1 This is a schematic diagram of the structure of the present invention, a device for extracting bromine from concentrated high-nitrate liquid and utilizing resources, including a primary extraction device 1;

[0022] The primary extraction device 1 is used for preliminary extraction of bromine. The bromine outlet 119 of the primary extraction device 1 is connected to the input end of the bromine storage tank. The bromine outlet 119 is located on the bottom surface of the shell 11. The bromine outlet 119 is connected to the bromine collection chamber 113. The bromine-containing nitrate liquid outlet 118 of the primary extraction device 1 is connected to the liquid input end of the secondary bromine extraction device. The bromine-containing nitrate liquid outlet 118 is connected to the anode chamber 112.

[0023] The primary extraction device 1 includes a shell 11, which contains, from top to bottom, a cathode chamber 111, an anode chamber 112, and a bromine collection chamber 113. By designing the shell 11 to include the cathode chamber 111, the anode chamber 112, and the bromine collection chamber 113, and by utilizing the fact that bromine itself has a higher sealing capacity than other raw materials, bromine can be deposited in the bromine collection chamber. After accumulating a certain amount, it can be extracted. In addition, a portion of bromine-containing nitrate solution can be output for secondary extraction, thereby achieving continuous production and improving production efficiency.

[0024] The top surface of the shell 11 has a hydrogen outlet 114 and a mother liquor inlet 115 that are connected to the cathode chamber 111. The side of the shell 11 has a feed port 116 that is connected to the cathode chamber 111 and an alkaline nitric acid outlet 117. The outlet end of the alkaline nitric acid outlet 117 passes through the anion exchange membrane 13 and is connected to the area where the cathode material 12 is located. The design of the feed port 116 can continuously add materials to the primary extraction device 1 to realize continuous reaction production.

[0025] The bromine collection chamber 113 is used to store the deposited bromine, and the output end of the bromine collection chamber 113 is connected to the input end of the bromine storage tank.

[0026] The cathode chamber 111 contains cathode material 12 and anion exchange membrane 13, which separates the cathode material 12 from the feed port 116.

[0027] The cation exchange membrane 14 is arranged in the shell 11, and separates the cathode chamber 111 and the anode chamber 112, the anode material 15 is arranged in the anode chamber 112, the bromine-containing nitric solution outlet 118 is arranged on the shell 11 and communicates with the anode chamber 112, and the output end of the bromine-containing nitric solution outlet 118 on the shell 11 is connected with the liquid input end of the secondary bromine extraction device.

[0028] The primary extraction device 1 comprises a power supply, the power supply is connected with the cathode material 12 and the anode material 15, and the power supply is used for supplying power for the cathode material 12 and the anode material 15.

[0029] Working principle:

[0030] Primary extraction: the high-nitric solution enters the shell 11 of the primary extraction device 1, acid is added into the shell 11, water is adjusted, and the cathode material 12 and the anode material 15 are powered, so as to generate bromine, hydrogen and bromine-containing nitric solution, the hydrogen flows out from the hydrogen outlet 114 and provides raw material for fuel cell power generation, the fuel cell power generation supplies the power supply 16, the bromine deposits at the bottom of the shell 11 due to its own density, that is, in the bromine collection chamber 113, the bromine-containing nitric solution is in the anode chamber 112, the alkali high-nitric solution after removing bromine flows to the carbonization reaction tank and the refrigeration nitration extraction device, and the clean bromine is transported to the bromine storage barrel after the bottom bromine is further dehydrated by the drying device.

[0031] Based on the above ideal embodiment of the utility model, through the above description, the related staff can make various changes and modifications without deviating from the technical idea of the utility model. The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A device for extracting bromine from concentrated high-nitrate solution and utilizing resources, characterized in that it comprises: The primary extraction device (1) is used for preliminary extraction of bromine, and a bromine outlet (119) of the primary extraction device (1) is connected with an input end of a bromine storage barrel, and a bromine-containing nitric solution outlet (118) of the primary extraction device (1) is connected with a liquid input end of a secondary bromine extraction device. The primary extraction device (1) comprises a shell (11), and the shell (11) comprises, from top to bottom, a cathode chamber (111), an anode chamber (112) and a bromine collection chamber (113) in sequence. The shell (11) has a hydrogen gas outlet (114) and a mother liquor inlet (115) on a top surface thereof and communicated with the cathode chamber (111), and has a feeding port (116) and an alkaline nitric solution outlet (117) on a side edge thereof and communicated with the cathode chamber (111). The bromine collection chamber (113) is used for storing deposited bromine, and an output end of the bromine collection chamber (113) is connected with an input end of a bromine storage barrel. The cathode chamber (111) is arranged with a cathode material (12) and an anion exchange membrane (13), and the anion exchange membrane (13) separates the cathode material (12) and the feeding port (116).

2. The device for extracting bromine from concentrated high-nitrate solution and utilizing resources according to claim 1, characterized in that: The shell (11) is arranged with a cation exchange membrane (14) separating the cathode chamber (111) and the anode chamber (112), and the anode chamber (112) is arranged with an anode material (15), and the shell (11) is provided with a bromine-containing nitric solution outlet (118) communicated with the anode chamber (112), and an output end of the bromine-containing nitric solution outlet (118) on the shell (11) is connected with a liquid input end of a secondary bromine extraction device. The primary extraction device (1) comprises a power supply connected with the cathode material (12) and the anode material (15), and the power supply is used for supplying power to the cathode material (12) and the anode material (15).

3. The apparatus for concentrating high nitrate solution and utilizing resources according to claim 2, characterized in that: The bromine outlet (119) is located on a bottom surface of the shell (11) and communicated with the bromine collection chamber (113).

4. The apparatus for concentrating high nitrate solution and utilizing resources according to claim 1, wherein: The bromine-containing nitric solution outlet (118) is communicated with the anode chamber (112).

5. The apparatus for concentrating high nitrate solution and utilizing resources according to claim 1, wherein: An output end of the alkaline nitric solution outlet (117) penetrates through the anion exchange membrane (13) and is communicated with a region where the cathode material (12) is located.

6. The apparatus for concentrating high nitrate solution and utilizing resources according to claim 2, wherein: ​

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