CN218307271U - Sodium xanthate mother liquor recovery unit - Google Patents
Sodium xanthate mother liquor recovery unit Download PDFInfo
- Publication number
- CN218307271U CN218307271U CN202222248403.0U CN202222248403U CN218307271U CN 218307271 U CN218307271 U CN 218307271U CN 202222248403 U CN202222248403 U CN 202222248403U CN 218307271 U CN218307271 U CN 218307271U
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- CN
- China
- Prior art keywords
- mother liquor
- tank
- sodium
- sodium hydroxide
- storage tank
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- 239000012452 mother liquor Substances 0.000 title claims abstract description 67
- RZFBEFUNINJXRQ-UHFFFAOYSA-M sodium ethyl xanthate Chemical compound [Na+].CCOC([S-])=S RZFBEFUNINJXRQ-UHFFFAOYSA-M 0.000 title claims abstract description 15
- 238000011084 recovery Methods 0.000 title claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 107
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000001556 precipitation Methods 0.000 claims abstract description 10
- 238000003828 vacuum filtration Methods 0.000 claims abstract description 9
- 239000002893 slag Substances 0.000 claims abstract description 8
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 238000012544 monitoring process Methods 0.000 claims description 7
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract description 11
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract description 11
- 235000011152 sodium sulphate Nutrition 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 2
- 238000004062 sedimentation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 15
- 235000012247 sodium ferrocyanide Nutrition 0.000 description 7
- 235000003891 ferrous sulphate Nutrition 0.000 description 6
- 239000011790 ferrous sulphate Substances 0.000 description 6
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 6
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- GTSHREYGKSITGK-UHFFFAOYSA-N sodium ferrocyanide Chemical compound [Na+].[Na+].[Na+].[Na+].[Fe+2].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] GTSHREYGKSITGK-UHFFFAOYSA-N 0.000 description 5
- 239000000264 sodium ferrocyanide Substances 0.000 description 5
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000536 complexating effect Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a recycling device for sodium xanthate mother liquor, belonging to the technical field of sodium xanthate production; comprises a mother liquor tank, a sodium hydroxide storage tank, a precipitation tank and a vacuum filtration device; the mother liquor tank is provided with a stirring device; the mother liquor tank is connected with a temperature detection device and a concentration detection device; a temperature control heating device is arranged in the sodium hydroxide storage tank; the sodium hydroxide storage tank is connected with the mother liquor tank through a liquor inlet pipe; the mother liquor tank is connected with a mother liquor feeding pipeline; the mother liquor tank is connected with the precipitation tank; the top of the settling tank is connected with a liquid taking pipe extending into the settling tank; the liquid taking pipe is provided with a liquid pump; the liquid taking pipe is connected with the neutralization tank; a slag hole is arranged at the bottom of the sedimentation tank and is connected with a vacuum filtration device; the utility model discloses a to the processing of sodium xanthate mother liquor, effectively reduce the content of sodium sulfate in the mother liquor, avoid the jam of pipeline in the mother liquor transportation.
Description
Technical Field
The utility model belongs to the technical field of the production of yellow blood salt sodium, concretely relates to yellow blood salt sodium mother liquor recovery unit.
Background
At present, the production of sodium ferrocyanide in China basically comprises a ferrous sulfate method and an iron powder method, wherein the iron powder method is characterized in that iron powder reacts with sodium cyanide to generate sodium ferrocyanide and sodium hydroxide and release hydrogen, in order to reduce the consumption of raw materials and improve the product quality, the sodium hydroxide generated in the complexing process needs to be neutralized by hydrocyanic acid gas to generate sodium cyanide, and then secondary complexing reaction is carried out to react the sodium cyanide with the iron powder; the iron powder process, although producing less waste than the ferrous sulfate process, produces different degrees of hydrolysis: naCN +2H 2 O→NaCOOH+NH 3 ；2NaCOOH→Na 2 CO 3 +H 2 + CO. Thus, naCN is consumed, a large amount of ammonia gas is overflowed, the utilization rate of raw materials is reduced, and the working environment is worse.
The ferrous sulfate method is a technological process of adding about 20% sodium cyanide directly into ferrous sulfate to react at 85-90 deg.c, filtering, evaporating to concentrate, crystallizing and centrifuging. The method has simple process and easily obtained raw materials. But sodium sulfate is generated during the reaction due to the ferrous sulfate method; in the process of transporting and recycling the mother liquor containing sodium sulfate, crystallization is often generated due to temperature change, so that the problem of pipeline blockage occurs in the mother liquor recovery process.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides a sodium xanthate mother liquor recovery unit, through the processing to the sodium xanthate mother liquor, effectively reduces the content of sodium sulfate in the mother liquor, avoids the jam of pipeline in the transportation.
In order to achieve the purpose, the utility model is realized by the following technical scheme.
A recovery device for sodium xanthate mother liquor comprises a mother liquor tank, a sodium hydroxide storage tank, a precipitation tank and a vacuum filtration device; the mother liquor tank is provided with a stirring device; the mother liquor tank is connected with a temperature detection device and a concentration detection device; a temperature control heating device is arranged in the sodium hydroxide storage tank; the sodium hydroxide storage tank is connected with the mother liquor tank through a liquor inlet pipe; the mother liquor tank is connected with a mother liquor feeding pipeline; the mother liquor tank is connected with the precipitation tank; the top of the settling tank is connected with a liquid taking pipe extending into the settling tank; the liquid taking pipe is provided with a liquid pump; the liquid taking pipe is connected with the neutralization tank; the bottom of the settling tank is provided with a slag hole, and the slag hole is connected with a vacuum filtration device.
Furthermore, the outer wall of the sodium hydroxide storage tank is provided with a heat insulation layer.
Furthermore, the outer wall of the mother liquor tank is provided with a heat insulation layer.
Further, the sodium hydroxide storage tank is connected with a temperature monitoring sensor.
Furthermore, an electromagnetic valve is arranged on a liquid inlet pipe which connects the sodium hydroxide storage tank and the mother liquor tank; the temperature monitoring sensor is connected with a controller, and the controller is connected with the electromagnetic valve.
The utility model discloses produced beneficial effect for prior art does:
the sodium hydroxide with a certain temperature range and a certain concentration range is added into the mother liquor discharged after the sodium ferrocyanide is crystallized, so that the sodium sulfate in the mother liquor is fully separated out through standing and precipitation; the sodium sulfate component in the treated mother liquor is greatly reduced, and the problem of pipeline blockage in the transportation process can be completely avoided.
Drawings
Fig. 1 is a schematic structural diagram of the sodium xanthate mother liquor recovery device of the utility model.
In the figure, 1 is a mother liquor tank; 2 is a sodium hydroxide storage tank; 3 is a settling tank; 4, a vacuum filtration device; 5 is agitating unit, 6 is temperature-detecting device, 7 is concentration detection device, 8 is control by temperature change heating device, 9 is the feed liquor pipe, 10 is mother liquor feed pipe, 11 is the liquid intaking pipe, 12 is the drawing liquid pump, 13 is the neutralization tank, 14 is the slag notch, 15 is the heat preservation, 16 is temperature monitoring sensor, 17 is the solenoid valve, 18 is the controller.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in fig. 1, the embodiment provides a sodium xanthate mother liquor recovery device, which mainly comprises a mother liquor tank 1, a sodium hydroxide storage tank 2, a precipitation tank 3 and a vacuum filtration device 4; the mother liquor tank 1 is provided with a stirring device 5; the mother liquor tank 1 is connected with a temperature detection device 6 and a concentration detection device 7; a temperature control heating device 8 is arranged in the sodium hydroxide storage tank 2; the sodium hydroxide storage tank 2 is also connected with a temperature monitoring sensor 16. And the outer wall of the mother liquor tank 1 and the outer wall of the sodium hydroxide storage tank 2 are both provided with heat preservation layers 15 for preserving the heat of the solution in the tank body.
The sodium hydroxide storage tank 2 is connected with the mother liquor tank 1 through a liquid inlet pipe 9; the liquid inlet pipe 9 is provided with an electromagnetic valve 17; the temperature monitoring sensor 16 is connected to a controller 18, and the controller 18 is connected to the solenoid valve 17.
The mother liquor tank 1 is connected with a mother liquor feeding pipeline 10; the mother liquor tank 1 is connected with the precipitation tank 3; the top of the settling tank 3 is connected with a liquid taking pipe 11 which extends into the settling tank 3; the liquid taking pipe 11 is provided with a liquid pump 12; the liquid taking pipe 11 is connected with a neutralization tank 13; the bottom of the settling tank 3 is provided with a slag outlet 14, and the slag outlet 14 is connected with the vacuum filtration device 4.
The specific working principle and the working process are as follows:
firstly, mother liquor added into a mother liquor tank is from a liquid part obtained by crystallizing sodium ferrocyanide prepared by a conventional ferrous sulfate method; adding 0.5-0.9kg/L sodium hydroxide solution at 60-90 deg.C into the mother liquor tank 1 to make the concentration of sodium hydroxide in the mixed liquid in the mother liquor tank be 0.5-0.6kg/L; the temperature of the mixed liquid is kept between 50 and 70 ℃; the device adjusts the temperature and the concentration of the sodium hydroxide solution to meet the requirements by arranging a series of devices for controlling the temperature and a concentration detection device on the mother liquor tank 1 and the sodium hydroxide storage tank 2, and simultaneously ensures the mixed liquid in the mother liquor tank 1 to reach the required temperature and concentration; a feedback control mechanism is also arranged on the sodium hydroxide storage tank 2, namely whether the alkali liquor is conveyed to the mother liquor tank 1 is regulated and controlled through an electromagnetic valve 17; when the temperature of the sodium hydroxide does not reach the required temperature, the controller 18 closes the electromagnetic valve 17; when the temperature is normal and the range is met, the electromagnetic valve 17 is opened to normally convey the sodium hydroxide lye.
Because the solubility of sodium sulfate is the maximum at 32.4 ℃, above or below this temperature, the solubility decreases and precipitates; and a certain amount of sodium hydroxide is maintained in the mother liquor, namely when the concentration of the sodium hydroxide in the mixed liquid is 0.5-0.6kg/L, namely the concentration is close to saturation, the content of the sodium sulfate is reduced to be below 0.5 percent, and the requirement of removing the sodium sulfate can be met; when the temperature of the mixed solution is 50-70 ℃, the sodium ferrocyanide is in a dissolved state, and the sodium hydroxide is an excessive substance which is necessary in the prior reaction process, so the sodium sulfate can be precipitated after stirring and standing precipitation, the clear mother liquor containing high-concentration sodium hydroxide can be returned to the neutralization tank through a pipeline, and the problem of blockage of the pipeline due to the crystallization of the sodium sulfate can not occur.
The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of simple deductions or substitutions without departing from the scope of the present invention, and all such alterations and substitutions should be considered as belonging to the present invention, which is defined by the appended claims.
Claims (5)
1. A device for recovering the sodium xanthate mother liquor is characterized by comprising a mother liquor tank (1), a sodium hydroxide storage tank (2), a precipitation tank (3) and a vacuum filtration device (4); the mother liquor tank (1) is provided with a stirring device (5); the mother liquor tank (1) is connected with a temperature detection device (6) and a concentration detection device (7); a temperature control heating device (8) is arranged in the sodium hydroxide storage tank (2); the sodium hydroxide storage tank (2) is connected with the mother liquor tank (1) through a liquid inlet pipe (9); the mother liquor tank (1) is connected with a mother liquor feeding pipeline (10); the mother liquor tank (1) is connected with the precipitation tank (3); the top of the settling tank (3) is connected with a liquid taking pipe (11) extending into the settling tank (3); the liquid taking pipe (11) is provided with a liquid pump (12); the liquid taking pipe (11) is connected with a neutralization tank (13); the bottom of the settling tank (3) is provided with a slag outlet (14), and the slag outlet (14) is connected with the vacuum filtration device (4).
2. The sodium xanthate mother liquor recovery device as claimed in claim 1, wherein the outer wall of the sodium hydroxide storage tank (2) is provided with an insulating layer (15).
3. The sodium xanthate mother liquor recovery device as claimed in claim 1, wherein the outer wall of the mother liquor tank (1) is provided with an insulating layer (15).
4. The sodium xanthate mother liquor recovery device as claimed in claim 1, wherein the sodium hydroxide storage tank (2) is connected with a temperature monitoring sensor (16).
5. The sodium xanthate mother liquor recovery device as claimed in claim 4, wherein the liquid inlet pipe (9) connecting the sodium hydroxide storage tank (2) and the mother liquor tank (1) is provided with an electromagnetic valve (17); the temperature monitoring sensor (16) is connected with a controller (18), and the controller (18) is connected with an electromagnetic valve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222248403.0U CN218307271U (en) | 2022-08-25 | 2022-08-25 | Sodium xanthate mother liquor recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222248403.0U CN218307271U (en) | 2022-08-25 | 2022-08-25 | Sodium xanthate mother liquor recovery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218307271U true CN218307271U (en) | 2023-01-17 |
Family
ID=84886728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222248403.0U Active CN218307271U (en) | 2022-08-25 | 2022-08-25 | Sodium xanthate mother liquor recovery unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218307271U (en) |
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2022
- 2022-08-25 CN CN202222248403.0U patent/CN218307271U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 048306 Pingcheng town Dongjie village, Lingchuan County, Jincheng City, Shanxi Province Patentee after: Shanxi Hongsheng Chemical Co.,Ltd. Address before: 048306 Pingcheng town Dongjie village, Lingchuan County, Jincheng City, Shanxi Province Patentee before: JINCHENG HONGSHENG CHEMICAL CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A yellow blood sodium mother liquor recovery device Effective date of registration: 20231208 Granted publication date: 20230117 Pledgee: Industrial Bank Co.,Ltd. Jincheng Branch Pledgor: Shanxi Hongsheng Chemical Co.,Ltd. Registration number: Y2023140000064 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20230117 Pledgee: Industrial Bank Co.,Ltd. Jincheng Branch Pledgor: Shanxi Hongsheng Chemical Co.,Ltd. Registration number: Y2023140000064 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A yellow blood sodium mother liquor recovery device Granted publication date: 20230117 Pledgee: Industrial Bank Co.,Ltd. Jincheng Branch Pledgor: Shanxi Hongsheng Chemical Co.,Ltd. Registration number: Y2024980025851 |