CN220572705U - Efficient trimethylolpropane extraction system - Google Patents
Efficient trimethylolpropane extraction system Download PDFInfo
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- CN220572705U CN220572705U CN202321905731.1U CN202321905731U CN220572705U CN 220572705 U CN220572705 U CN 220572705U CN 202321905731 U CN202321905731 U CN 202321905731U CN 220572705 U CN220572705 U CN 220572705U
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- extraction tower
- pipe
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- 238000000605 extraction Methods 0.000 title claims abstract description 151
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000004062 sedimentation Methods 0.000 claims abstract description 28
- 239000000284 extract Substances 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 description 12
- 230000003139 buffering effect Effects 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 2
- UNMJLQGKEDTEKJ-UHFFFAOYSA-N (3-ethyloxetan-3-yl)methanol Chemical compound CCC1(CO)COC1 UNMJLQGKEDTEKJ-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 239000006077 pvc stabilizer Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
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- Extraction Or Liquid Replacement (AREA)
Abstract
The high-efficiency trimethylolpropane extraction system comprises a primary extraction tower, a secondary extraction tower, a sedimentation tank and a tailing extraction tower, wherein a raw material pipe is communicated with a feed inlet of the primary extraction tower, a discharge outlet of the primary extraction tower is communicated with the sedimentation tank and a tailing tank, a discharge outlet of the sedimentation tank is communicated with a feed inlet of the secondary extraction tower and the tailing tank, a discharge outlet of the secondary extraction tower is communicated with a feed inlet of an extraction phase buffer tank and a tailing tank, a discharge outlet of one side of the tailing tank is communicated with a feed inlet of the tailing extraction tower, a discharge outlet of the tailing extraction tower is communicated with the extraction phase buffer tank, and another discharge outlets of the tailing extraction tower and the tailing tank are communicated with a feed inlet of a raffinate phase buffer tank; according to the utility model, through the multistage extraction system and the tailing recycling system, the extraction rate of TMP can be effectively improved, in addition, the utilization rate of TMP can be improved, and the production cost can be effectively reduced.
Description
Technical Field
The utility model belongs to the technical field of chemical refining devices, and particularly relates to a trimethylolpropane efficient extraction system.
Background
Trimethylolpropane is a high added value chemical and can be used for producing products such as photo-curing materials, cosmetics, PVC stabilizers, lubricating oil, defoamers, photosensitive materials and the like. Typically, trimethylolpropane is a byproduct of the trimethylolpropane condensation reaction and is enriched in the trimethylolpropane heavy fraction. Since the trimethylolpropane heavy component contains a large amount of impurities such as trimethylolpropane cyclic formal, trimethylolpropane oxetane, colored tar and the like. This makes extraction of trimethylolpropane difficult.
At present, the domestic Trimethylolpropane (TMP) production process route mainly comprises a sodium method and a calcium method, and the existence of salt in reactants brings great difficulty to the stable operation of procedures such as extraction, rectification and the like, thereby influencing the product quality. The traditional extraction equipment adopts an extraction tank, the occupied area is large, the extraction yield is high, and the quality of the produced final finished product is poor and needs to be optimized and improved.
Disclosure of Invention
In view of the technical problems existing in the background art, the high-efficiency extraction system of the trimethylolpropane provided by the utility model can effectively improve the extraction rate of TMP through the multistage extraction system and the tailing recycling system, and in addition, the system can also improve the utilization rate of TMP and reduce the production cost.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a high-efficient extraction system of trimethylolpropane, including one-level extraction tower, the second grade extraction tower, sedimentation tank and tailing extraction tower, the feed inlet of raw materials pipe intercommunication one-level extraction tower, the discharge gate intercommunication sedimentation tank and tailing pond of one-level extraction tower, the discharge gate intercommunication second grade extraction tower's feed inlet and tailing pond, the discharge gate intercommunication extraction of second grade extraction tower is buffer tank feed inlet and tailing pond mutually, the feed inlet of one side discharge gate intercommunication tailing extraction tower of tailing pond, the discharge gate intercommunication extraction of tailing extraction tower is buffer tank mutually, the other discharge gate intercommunication raffinate of tailing extraction tower and tailing pond is buffer tank feed inlet.
In the preferred scheme, a discharge port of the raffinate phase buffer pool is communicated with a tail pipe, and a discharge port of the extract phase buffer pool is communicated with a finished product pipe.
In the preferred scheme, a raffinate phase discharge port of the primary extraction tower is communicated with a tailing pond through a primary raffinate phase discharge pipe, and an extract phase discharge port of the primary extraction tower is communicated with a feed port of a sedimentation pond through a primary extract phase discharge pipe.
In the preferred scheme, the raffinate phase discharge gate of sedimentation tank passes through the row material pipe intercommunication tailing pond, and the extract phase discharge gate of sedimentation tank passes through the feed inlet of second conveying pipeline intercommunication second level extraction tower, be equipped with first delivery pump on the second conveying pipeline.
In the preferred scheme, a raffinate phase discharge port of the second-stage extraction tower is communicated with the tailing pond through a second-stage raffinate phase discharge pipe, and an extract phase discharge port of the second-stage extraction tower is communicated with the input end of the first three-way valve through a second-stage extract phase discharge pipe.
In the preferred scheme, a raffinate phase discharge port of the tailing extraction tower is communicated with the input end of a second three-way valve through a tailing raffinate phase discharge pipe, and a second conveying pump is arranged on the tailing raffinate phase discharge pipe;
the extraction phase discharge port of the tailing extraction tower is communicated with the other input end of the first three-way valve through a tailing extraction phase discharge pipe, and the output end of the first three-way valve is communicated with the feed inlet of the extraction phase buffer pool through a first feed conveying pipe.
In the preferred scheme, a discharge port at one side of the tailing pond is communicated with a feed port of a tailing extraction tower through a tailing feed pipe, and a third conveying pump is arranged on the tailing feed pipe;
the other side discharge port of the tailing pond is communicated with the other input end of the second three-way valve, and the output end of the second three-way valve is communicated with the raffinate phase buffer pond.
The following beneficial effects can be achieved in this patent:
1. the system is extracted by a two-stage extraction tower of a first-stage extraction tower and a second-stage extraction tower, so that an extraction phase and a raffinate phase are thoroughly separated, and the extraction rate of TMP and the quality of finished products are improved;
2. the system can carry out secondary recovery and extraction on the raffinate phase solution through the tailing extraction tower, improves the utilization rate of TMP and effectively reduces the production cost.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a block diagram of a system of the present utility model;
in the figure: the device comprises a raw material pipe 1, a first-stage extraction tower 2, a first-stage raffinate phase discharging pipe 3, a first-stage extract phase discharging pipe 4, a sedimentation tank 5, a first conveying pump 6, a discharging pipe 7, a second-stage extraction tower 8, a second-stage extract phase discharging pipe 9, a first three-way valve 6, a first conveying pipe 11, an extract phase buffer tank 12, a finished product pipe 13, a tailing extraction tower 14, a second conveying pump 15, a third conveying pump 16, a tailing tank 17, a second three-way valve 18, a raffinate phase buffer tank 19, a tailing pipe 20, a second-stage raffinate phase discharging pipe 21, a tailing raffinate phase discharging pipe 22, a tailing extract phase discharging pipe 23, a tailing feeding pipe 24 and a second conveying pipe 25.
Detailed Description
As shown in fig. 1, the trimethylolpropane high-efficiency extraction system comprises a primary extraction tower 2, a secondary extraction tower 8, a sedimentation tank 5 and a tailing extraction tower 14, wherein a raw material pipe 1 is communicated with a feed inlet of the primary extraction tower 2, a discharge outlet of the primary extraction tower 2 is communicated with the sedimentation tank 5 and a tailing tank 17, a discharge outlet of the sedimentation tank 5 is communicated with a feed inlet of the secondary extraction tower 8 and the tailing tank 17, a discharge outlet of the secondary extraction tower 8 is communicated with a feed inlet of an extraction phase buffer tank 12 and the tailing tank 17, a discharge outlet of one side of the tailing tank 17 is communicated with a feed inlet of the tailing extraction tower 14, a discharge outlet of the tailing extraction tower 14 is communicated with an extraction phase buffer tank 12, and another discharge outlets of the tailing extraction tower 14 and the tailing tank 17 are communicated with a feed inlet of a residual extraction phase buffer tank 19;
in the operation process of the system, raw material solution which is not extracted is input into a first-stage extraction tower 2 through a raw material pipe 1, after primary extraction of the first-stage extraction tower 2, raffinate phase solution is discharged into a tailing pond 17, and extract phase solution is injected into a sedimentation pond 5 for sedimentation separation; the raffinate solution after precipitation separation is discharged into a tailing pond 17 again, and the extract solution is injected into a secondary extraction tower 8 for secondary extraction;
after secondary extraction by the secondary extraction tower 8, the raffinate phase solution is discharged into the tailing pond 17 for the third time, and the extract phase solution is injected into the extract phase buffer pond 12 for buffering;
the raffinate solution in the tailing pond 17 is subjected to secondary sedimentation separation, the extract solution after the secondary sedimentation separation is recycled and injected into the tailing extraction tower 14 for recycling extraction, and the raffinate solution after the secondary sedimentation in the tailing pond 17 is discharged into the raffinate buffer pond 19 for buffering;
the tail extraction tower 14 finally recovers and extracts the extraction phase solution, and the extraction phase solution after recovery and extraction is directly injected into the extraction phase buffer tank 12 and is uniformly conveyed to the next working procedure; the raffinate solution after recovery extraction is directly injected into the raffinate buffer tank 19 and is discharged uniformly.
As shown in FIG. 1, a discharge port of the raffinate buffer pool 19 is communicated with a tail pipe 20 and discharges the raffinate solution after full extraction to a designated place; the discharge port of the extraction phase buffer tank 12 is communicated with a finished product pipe 13 and conveys the extraction phase solution after full extraction to the next working procedure.
As shown in figure 1, the extract phase discharge port of the primary extraction tower 2 is communicated with the tailing pond 17 through a primary extract phase discharge pipe 3, the extract phase discharge port of the primary extraction tower 2 is communicated with the feed port of the sedimentation pond 5 through a primary extract phase discharge pipe 4, and the extract phase solution after primary extraction is discharged into the tailing pond 17 through the primary extract phase discharge pipe 3 for caching; the extract phase solution after the primary extraction is injected into a sedimentation tank 5 through a primary extract phase discharging pipe 4 for sedimentation separation.
The preferable proposal is as shown in figure 1, a raffinate phase discharge port of the sedimentation tank 5 is communicated with a tailing tank 17 through a discharge pipe 7, an extract phase discharge port of the sedimentation tank 5 is communicated with a feed port of a secondary extraction tower 8 through a second feed delivery pipe 25, and a first feed delivery pump 6 is arranged on the second feed delivery pipe 25; the extract phase solution after primary precipitation separation is injected into the secondary extraction tower 8 through the second conveying pipe 25 for secondary extraction, and the extract phase solution after primary precipitation separation is discharged into the tailing pond 17 again through the discharge pipe 7 for buffering.
As shown in figure 1, the extraction phase discharge port of the secondary extraction tower 8 is communicated with the tailing pond 17 through a secondary extraction phase discharge pipe 21, and the extraction phase discharge port of the secondary extraction tower 8 is communicated with the input end of the first three-way valve 10 through a secondary extraction phase discharge pipe 9; the raffinate solution after the second-stage extraction is discharged into the tailing pond 17 for caching for the third time through a second-stage raffinate discharging pipe 21; the extraction phase solution after the second-stage extraction is input into an extraction phase buffer pool 12 for buffering after passing through a second-stage extraction phase discharging pipe 9, a first three-way valve 10 and a first material conveying pipe 11.
As shown in fig. 1, the raffinate outlet of the tailing extraction tower 14 is communicated with the input end of the second three-way valve 18 through a tailing raffinate outlet pipe 22, and a second conveying pump 15 is arranged on the tailing raffinate outlet pipe 22; the extraction phase discharge port of the tailing extraction tower 14 is communicated with the other input end of the first three-way valve 10 through a tailing extraction phase discharge pipe 23, and the output end of the first three-way valve 10 is communicated with the feed inlet of the extraction phase buffer tank 12 through a first feed delivery pipe 11;
the raffinate solution after recovery and extraction is conveyed into a raffinate buffer pool 19 for buffering through a tailing raffinate discharging pipe 22 and a second three-way valve 18; the raffinate solution after recovery extraction is input into the extract buffer pool 12 for buffering after passing through the tail extract discharging pipe 23, the first three-way valve 10 and the first conveying pipe 11.
As shown in fig. 1, a discharge port at one side of the tailing pond 17 is communicated with a feed port of the tailing extraction tower 14 through a tailing feed pipe 24, and a third conveying pump 16 is arranged on the tailing feed pipe 24; the other side discharge port of the tailing pond 17 is communicated with the other input end of the second three-way valve 18, and the output end of the second three-way valve 18 is communicated with the raffinate phase buffer pond 19; the raffinate solution after secondary precipitation is directly discharged into a raffinate buffer pool 19 for buffering through a second three-way valve 18; the extract phase solution after secondary precipitation is conveyed into the tailing extraction tower 14 through a tailing feed pipe 24 for recovery extraction.
The above embodiments are only preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the scope of the present utility model should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.
Claims (7)
1. The utility model provides a high-efficient extraction system of trimethylolpropane, includes one-level extraction tower (2), second grade extraction tower (8), sedimentation tank (5) and tailing extraction tower (14), its characterized in that: the feed pipe (1) is communicated with a feed inlet of the primary extraction tower (2), a discharge outlet of the primary extraction tower (2) is communicated with a sedimentation tank (5) and a tailing pond (17), a discharge outlet of the sedimentation tank (5) is communicated with a feed inlet of the secondary extraction tower (8) and the tailing pond (17), a discharge outlet of the secondary extraction tower (8) is communicated with a feed inlet of the extraction phase buffer pond (12) and a feed inlet of the tailing pond (17), a discharge outlet of one side of the tailing pond (17) is communicated with a feed inlet of the tailing extraction tower (14), a discharge outlet of the tailing extraction tower (14) is communicated with the extraction phase buffer pond (12), and another discharge outlet of the tailing extraction tower (14) and the tailing pond (17) is communicated with a feed inlet of the raffinate phase buffer pond (19).
2. The trimethylol propane efficient extraction system of claim 1, wherein: the discharge port of the raffinate phase buffer pool (19) is communicated with a tail pipe (20), and the discharge port of the extract phase buffer pool (12) is communicated with a finished product pipe (13).
3. The trimethylol propane efficient extraction system of claim 1, wherein: the raffinate phase discharge port of the primary extraction tower (2) is communicated with the tailing pond (17) through a primary raffinate phase discharge pipe (3), and the extract phase discharge port of the primary extraction tower (2) is communicated with the feed inlet of the sedimentation pond (5) through a primary extract phase discharge pipe (4).
4. The trimethylol propane efficient extraction system of claim 1, wherein: the raffinate phase discharge gate of sedimentation tank (5) is through arranging material pipe (7) intercommunication tailing pond (17), and the extract phase discharge gate of sedimentation tank (5) is through the feed inlet of second conveying pipeline (25) intercommunication second extraction tower (8), be equipped with first delivery pump (6) on second conveying pipeline (25).
5. The trimethylol propane efficient extraction system of claim 1, wherein: the raffinate phase discharge port of the second-stage extraction tower (8) is communicated with the tailing pond (17) through a second-stage raffinate phase discharge pipe (21), and the extract phase discharge port of the second-stage extraction tower (8) is communicated with the input end of the first three-way valve (10) through a second-stage extract phase discharge pipe (9).
6. The trimethylol propane efficient extraction system of claim 5, wherein: the raffinate phase discharge port of the tail extraction tower (14) is communicated with the input end of the second three-way valve (18) through a tail raffinate phase discharge pipe (22), and a second conveying pump (15) is arranged on the tail raffinate phase discharge pipe (22);
the extraction phase discharge port of the tailing extraction tower (14) is communicated with the other input end of the first three-way valve (10) through a tailing extraction phase discharge pipe (23), and the output end of the first three-way valve (10) is communicated with the feed inlet of the extraction phase buffer pool (12) through a first feed conveying pipe (11).
7. The trimethylol propane efficient extraction system of claim 6, wherein: a discharge port at one side of the tailing pond (17) is communicated with a feed port of the tailing extraction tower (14) through a tailing feed pipe (24), and a third conveying pump (16) is arranged on the tailing feed pipe (24);
the other side discharge port of the tailing pond (17) is communicated with the other input end of the second three-way valve (18), and the output end of the second three-way valve (18) is communicated with the raffinate phase buffer pond (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321905731.1U CN220572705U (en) | 2023-07-19 | 2023-07-19 | Efficient trimethylolpropane extraction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321905731.1U CN220572705U (en) | 2023-07-19 | 2023-07-19 | Efficient trimethylolpropane extraction system |
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| Publication Number | Publication Date |
|---|---|
| CN220572705U true CN220572705U (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321905731.1U Active CN220572705U (en) | 2023-07-19 | 2023-07-19 | Efficient trimethylolpropane extraction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220572705U (en) |
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2023
- 2023-07-19 CN CN202321905731.1U patent/CN220572705U/en active Active
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