CN112322320A - Separation equipment for carbon-nine resin oil and use method thereof - Google Patents
Separation equipment for carbon-nine resin oil and use method thereof Download PDFInfo
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- CN112322320A CN112322320A CN202011135056.XA CN202011135056A CN112322320A CN 112322320 A CN112322320 A CN 112322320A CN 202011135056 A CN202011135056 A CN 202011135056A CN 112322320 A CN112322320 A CN 112322320A
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- resin oil
- pipe
- condenser
- carbon
- heating
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- 239000011347 resin Substances 0.000 title claims abstract description 89
- 229920005989 resin Polymers 0.000 title claims abstract description 89
- 238000000926 separation method Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 44
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 21
- 239000006185 dispersion Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000005485 electric heating Methods 0.000 claims abstract description 3
- 238000004804 winding Methods 0.000 claims abstract description 3
- 238000010992 reflux Methods 0.000 claims description 26
- 239000000945 filler Substances 0.000 claims description 20
- 238000012856 packing Methods 0.000 claims description 20
- 239000000919 ceramic Substances 0.000 claims description 11
- 230000006837 decompression Effects 0.000 claims description 8
- 238000011049 filling Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000005292 vacuum distillation Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 4
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 241001233242 Lontra Species 0.000 description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000003454 indenyl group Chemical class C1(C=CC2=CC=CC=C12)* 0.000 description 1
- NFWSQSCIDYBUOU-UHFFFAOYSA-N methylcyclopentadiene Chemical compound CC1=CC=CC1 NFWSQSCIDYBUOU-UHFFFAOYSA-N 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- IYQYZZHQSZMZIG-UHFFFAOYSA-N tricyclo[5.2.1.0(2.6)]deca-3,8-diene, 4.9-dimethyl Chemical compound C1C2C3C=C(C)CC3C1C=C2C IYQYZZHQSZMZIG-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G7/00—Distillation of hydrocarbon oils
- C10G7/06—Vacuum distillation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G53/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
- C10G53/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G7/00—Distillation of hydrocarbon oils
- C10G7/12—Controlling or regulating
Abstract
The invention discloses a separating device for carbon nine resin oil and a using method thereof, the separating device comprises a vacuum rectification separating tower, the left side of the middle part of the vacuum rectification separating tower is connected with a heating section, the heating section comprises a feeding pipe, the end part of the feeding pipe is connected with a vertically downward air inlet pipe, the outer side of the feeding pipe in the vacuum rectification separating tower is provided with a heating layer, a winding electric heating wire is arranged in the heating layer, the lower end of the air inlet pipe is provided with a dispersion pipe with the lower end closed, the side wall of the dispersion pipe is uniformly provided with a plurality of through holes, so that gas is horizontally and circumferentially sprayed out, the feeding pipe comprises an external connection pipe disperser which is connected with the air inlet pipe through a pipeline, the invention separates mixed carbon nine resin oil into light resin oil and heavy resin oil, then the mixture at the edge is further separated by centrifugal force and, through the setting of heating section, utilize gaseous dispersion raw materials, improve separation efficiency.
Description
Technical Field
The invention relates to separation equipment, in particular to separation equipment for carbon nine resin oil and a using method thereof.
Background
The mixed carbon-nine resin oil is a byproduct of a large petrochemical ethylene device, has very complex components and contains more than 200 components, such as dicyclopentadiene, methylcyclopentadiene dimer, dimer of cyclopentadiene and methylcyclopentadiene, carbon-nine arene, indene compounds, naphthalene compounds and the like. The appearance of the aromatic hydrocarbon-free aromatic hydrocarbon composite material is light yellow or brownish yellow liquid, free of free water, and has a density of not less than 900kg/m3 at 20 ℃ and a total aromatic hydrocarbon content of not less than 50.0%.
At present, the carbon-nine petroleum resin is directly processed into the carbon-nine petroleum resin without separation in China, so the quality of the carbon-nine petroleum resin in China is generally poor, and the prominent effects are that the product has darker color and too wide molecular weight distribution range, and can only be used for low-grade products. Accordingly, the present invention provides a separation apparatus for carbon nine resin oil and a method of using the same to solve the problems set forth in the background art described above.
Disclosure of Invention
The invention aims to provide a separation device for carbon nine resin oil and a use method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a splitter for carbon nine resin oil and application method thereof, includes the rectification of decompression knockout tower, the heating section is connected on the middle part left side of rectification of decompression knockout tower, and the heating section includes the inlet pipe, the vertical decurrent intake pipe of end connection of inlet pipe, and the outside of inlet pipe in the rectification of decompression knockout tower all is equipped with the zone of heating, is equipped with winding heating wire in the zone of heating, and the inlet pipe is including taking over the deconcentrator outward, and the deconcentrator passes through the pipe connection intake pipe.
The top of heating section is equipped with the fan, the fan passes through the support to be fixed in the rectification under reduced pressure knockout tower, the upper portion of rectification under reduced pressure knockout tower is equipped with the filler district, the lower part of rectification under reduced pressure knockout tower is equipped with the lower filler district, the downside in lower filler district passes through the heavy resin oil cooler of pipe connection, heavy resin oil storage tank is connected to the heavy resin oil cooler, the middle part in lower filler district passes through the pipe connection backward flow jar, go up the upper right side in filler district and pass through pipe connection condenser one, condenser one passes through pipe connection condenser two, condenser two connects light resin oil storage tank, separate raw materials mixed resin oil.
As a further scheme of the invention, the lower end of the air inlet pipe is provided with a dispersion pipe with a closed lower end, and the side wall of the dispersion pipe is uniformly provided with a plurality of through holes, so that the gas is horizontally and circumferentially sprayed out.
As a further scheme of the invention, the middle part of the disperser is provided with an air nozzle, the air nozzle is connected with an air inlet pipe, the periphery of the air nozzle is provided with nozzles which are distributed in a cylindrical manner, the nozzles are inclined towards the axis of the air nozzle, the left end of each nozzle is connected with an external connecting pipe, and the grease is dispersed and then pushed out by air.
As a further scheme of the invention, a rotating shaft of the fan is connected with fan blades which are in a sheet shape perpendicular to a horizontal plane and drive airflow to rotate horizontally.
As a further scheme of the invention, the lower packing area comprises a heating screen plate on the upper side, a ceramic filter layer is arranged on the lower side of the heating screen plate, a collecting pipe is arranged on the lower side of the ceramic filter layer, the lower side of the collecting pipe is funnel-shaped, a gap is reserved between the outer side of the collecting pipe and the vacuum rectification separation tower, heavy resin oil conveniently flows downwards, regular packing is filled in the collecting pipe, the lower side of the lower packing area is connected with a heavy resin oil cooler through a discharge pipe, and the collecting pipe is connected with a reflux tank through a pipeline.
As a further scheme of the invention, the reflux tank is a reduced pressure heating tank, the reflux tank comprises a heating component on the lower side and an air extraction component on the upper side, the air extraction component is communicated with the middle lower part of the reduced pressure rectification separation tower, the lower end of the reflux tank is connected with the heavy resin oil cooler through a pipeline, and the upper end of the reflux tank is connected with the lower end of the first condenser to reheat and separate the refluxed heavy resin oil.
As a further scheme of the invention, the upper filling area comprises ceramic tube filling on the lower side and a round cover type cover on the upper side, the upper side of the upper filling area is connected with a second condenser through a second air outlet, the upper right side of the upper filling area is connected with the first condenser through the first air outlet, and the air outlet of the first condenser is connected with the second condenser.
As a further scheme of the invention, the temperature in the first condenser is lower than that of the second condenser, so that gradual condensation is carried out, and the separation effect is improved.
As a further scheme of the invention, an oval cavity protruding outwards is arranged at the middle upper part of the vacuum rectification separation tower and corresponds to the position of the fan, so that the internal volume is increased, and the wind speed is further reduced.
The separation equipment for the carbon nine resin oil comprises the following steps:
s1: the raw materials pass through the inlet pipe and get into, through the heating of heating wire after to along the deconcentrator blowout, further dispersion of gas through the intake pipe, discharge from the blast pipe.
S2: under the drive of a fan and fan blades, the horizontal wind power drives large-particle liquid to be close to the inner wall, and the large-particle liquid is separated by a vacuum rectification separation tower and gravity.
S3: the heavy resin oil passes through the lower packing area and is finally collected through a heavy resin oil cooler and a heavy resin oil storage tank, the heavy resin oil in the collection pipe is further subjected to pressure reduction and heating through the reflux tank, separation is further carried out, and a part of the heavy resin oil flows back.
S4: light resin oil passes through the filler district, and the large granule gas at edge carries out secondary condensation and separation in getting into condenser one through gas outlet one, and the rethread backward flow jar carries out the secondary reflux, and middle gas is collected at light resin oil storage tank through condenser two.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the mixed carbon nine resin oil is separated into the light resin oil and the heavy resin oil, and then the light resin oil and the heavy resin oil are separated by using centrifugal force and gravity, so that the mixture at the edge is further separated, the purity of the product is improved, and meanwhile, the raw materials are dispersed by using gas through the arrangement of the heating section, so that the separation efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of a separation apparatus for carbon nine resin oil.
Fig. 2 is a partially enlarged schematic view of a in fig. 1.
FIG. 3 is a schematic view of the lower packing region of a separation apparatus for carbon nine resin oil.
Fig. 4 is a schematic view of the upper packing region in a separation apparatus for carbon nine resin oil.
Fig. 5 is a schematic perspective view of a fan blade in a separation device for carbon nine resin oil.
Fig. 6 is a schematic perspective view of a separator in a separation apparatus for carbon nine resin oil.
In the figure: 1. a vacuum rectification separation tower; 2. a heating section; 3. an upper packing region; 4. a lower packing region; 5. a first condenser; 6. a second condenser; 7. a heavy resin oil cooler; 8. a heavy resin oil storage tank; 9. a reflux tank; 10. a feed pipe; 11. an electric heating wire; 12. an air inlet pipe; 13. a disperser; 14. an exhaust pipe; 15. a support; 16. a fan; 17. a fan blade; 18. heating the screen plate; 19. a ceramic filter layer; 20. packing regularly; 21. a collection pipe; 22. a first discharge pipe; 23. ceramic tube packing; 24. a first air outlet; 25. and a second air outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, in an embodiment of the present invention, a separation apparatus for carbon-nine resin oil and a use method thereof include a vacuum rectification separation tower 1, a heating section 2 is connected to a left side of a middle portion of the vacuum rectification separation tower 1, the heating section 2 includes a feeding pipe 10, an end portion of the feeding pipe 10 is connected to a vertically downward air inlet pipe 12, heating layers are respectively disposed on outer sides of the feeding pipe 10 in the vacuum rectification separation tower 1, a wound heating wire 11 is disposed in the heating layers, a dispersion pipe with a closed lower end is disposed at a lower end of the air inlet pipe 12, a plurality of through holes are uniformly disposed on a side wall of the dispersion pipe to enable air to be ejected horizontally and circumferentially, the feeding pipe 10 includes an external connection pipe disperser 13, the disperser 13 is connected to the air inlet pipe 12 through a pipeline, an air nozzle is disposed at a middle portion of the disperser 13, the air nozzle is connected to the, the left end of the nozzle is connected with an external connecting pipe, and the grease is dispersed and then pushed out by gas.
The reflux tank 9 is a decompression heating tank, the reflux tank 9 comprises a heating component on the lower side and an air pumping component on the upper side, the air pumping component is communicated with the middle lower part of the decompression rectification separation tower 1, the lower end of the reflux tank 9 is connected with a heavy resin oil cooler 7 through a pipeline, the upper end of the reflux tank 9 is connected with the lower end of a condenser I5, and the refluxed heavy resin oil is reheated and separated.
Go up filler district 3 and include ceramic tube filler 23 of downside and the dome type lid of upside, go up the upside of filler district 3 and pass through two 25 connections condensers 6 of gas outlet, go up the upper right side of filler district 3 and pass through one 24 connections condensers 5 of gas outlet, the gas outlet of condenser 5 is connected condensers 6, the temperature in condenser 5 is less than the temperature of condenser two 6, carries out gradual condensation, improves the separation effect.
An oval cavity protruding outwards is arranged at the middle upper part of the vacuum rectification separation tower 1 corresponding to the fan 16, so that the internal volume is increased, and the wind speed is further reduced.
The separation equipment for the carbon nine resin oil comprises the following steps:
s1: the raw material is introduced through the inlet pipe 10, heated by the heating wire 11, and then ejected along the dispenser 13, and the gas passing through the inlet pipe 12 is further dispersed and discharged from the outlet pipe 14.
S2: under the drive of the fan 16 and the fan blade 17, the horizontal wind power drives the large-particle liquid to be close to the inner wall, and the large-particle liquid is separated from the gravity through the vacuum rectification separation tower 1.
S3: the heavy resin oil passes through the lower packing region 4 and is finally collected by the heavy resin oil cooler 7 and the heavy resin oil storage tank 8, and the heavy resin oil in the collection pipe 21 is further subjected to separation by further pressure reduction and heating in the reflux tank 9, and a part of the heavy resin oil is refluxed.
S4: light resin oil passes through upper packing district 3, and the large granule gas at edge carries out secondary condensation and separation in entering condenser 5 through gas outlet 24, carries out the secondary reflux through reflux drum 9 again, and middle gas is collected at light resin oil storage tank through condenser two 6.
According to the invention, the mixed carbon nine resin oil is separated into the light resin oil and the heavy resin oil, and then the light resin oil and the heavy resin oil are separated by using centrifugal force and gravity, so that the mixture at the edge is further separated, the purity of the product is improved, and meanwhile, the raw materials are dispersed by using gas through the arrangement of the heating section 2, so that the separation efficiency is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The separation equipment for the carbon-nine resin oil comprises a vacuum rectification separation tower (1) and is characterized in that the heating section (2) is connected to the left side of the middle of the vacuum rectification separation tower (1), the heating section (2) comprises a feeding pipe (10), the end of the feeding pipe (10) is connected with a vertically downward air inlet pipe (12), heating layers are arranged on the outer sides of the feeding pipe (10) in the vacuum rectification separation tower (1), a winding heating wire (11) is arranged in the heating layers, the feeding pipe (10) comprises an external pipe disperser (13), and the disperser (13) is connected with the air inlet pipe (12) through a pipeline;
the top of heating section (2) is equipped with fan (16), fan (16) are fixed in vacuum rectification knockout tower (1) through support (15), the upper portion of vacuum rectification knockout tower (1) is equipped with filler district (3), the lower part of vacuum rectification knockout tower (1) is equipped with lower filler district (4), the downside of lower filler district (4) passes through pipe connection heavy resin oil cooler (7), heavy resin oil storage tank (8) is connected in heavy resin oil cooler (7), pipe connection reflux tank (9) is passed through at the middle part of lower filler district (4), pipe connection condenser (5) are passed through to the upper right side of going up filler district (3), condenser (5) are passed through pipe connection condenser two (6), condenser two (6) are connected light resin oil storage tank.
2. The separation equipment for the carbon nine resin oil according to the claim 1, characterized in that the lower end of the air inlet pipe (12) is provided with a dispersion pipe with a closed lower end, and the side wall of the dispersion pipe is uniformly provided with a plurality of through holes.
3. The separation equipment for the carbon nine resin oil is characterized in that an air nozzle is arranged in the middle of the disperser (13) and connected with an air inlet pipe (12), nozzles which are distributed in a cylindrical mode are arranged on the periphery of the air nozzle and inclined towards the axis of the air nozzle, and the left end of each nozzle is connected with an external connecting pipe.
4. The separation equipment for the carbon nine resin oil according to claim 1, wherein a rotating shaft of the fan (16) is connected with a fan blade (17), and the fan blade (17) is in a sheet shape perpendicular to a horizontal plane.
5. The separation equipment for carbon-nine resin oil according to claim 1, wherein the lower packing region (4) comprises a heating screen plate (18) on the upper side, a ceramic filter layer (19) is arranged on the lower side of the heating screen plate (18), a collecting pipe (21) is arranged on the lower side of the ceramic filter layer (19), the lower side of the collecting pipe (21) is funnel-shaped, a gap is reserved between the outer side of the collecting pipe (21) and the reduced pressure rectification separation tower (1), regular packing (20) is filled in the collecting pipe (21), the lower side of the lower packing region (4) is connected with the heavy resin oil cooler (7) through a first discharging pipe (22), and the collecting pipe (21) is connected with the reflux tank (9) through a pipeline.
6. The separation equipment for the carbon-nine resin oil is characterized in that the reflux tank (9) is a decompression heating tank, the reflux tank (9) comprises a heating component at the lower side and an air extraction component at the upper side, the air extraction component is communicated with the middle lower part of the decompression rectification separation tower (1), the lower end of the reflux tank (9) is connected with the heavy resin oil cooler (7) through a pipeline, and the upper end of the reflux tank (9) is connected with the lower end of the first condenser (5).
7. The separation equipment for the carbon-nine resin oil is characterized in that the upper filling area (3) comprises ceramic tube filling (23) on the lower side and a round cover type cover on the upper side, the upper side of the upper filling area (3) is connected with a second condenser (6) through a second air outlet (25), the upper right side of the upper filling area (3) is connected with the first condenser (5) through a first air outlet (24), and the air outlet of the first condenser (5) is connected with the second condenser (6).
8. The separation equipment for the carbon nine resin oil according to claim 7, wherein the temperature in the first condenser (5) is lower than that in the second condenser (6).
9. The separation equipment for the carbon nine resin oil according to the claim 1, characterized in that the middle upper part of the vacuum distillation separation tower (1) is provided with an oval cavity protruding outwards corresponding to the position of the fan (16).
10. The use of the separation apparatus for carbon nine resin oil according to any one of claims 1 to 9, wherein: the method comprises the following steps:
s1: raw materials enter through a feeding pipe (10), are heated by an electric heating wire (11) and then are sprayed out along a disperser (13), and gas passing through an air inlet pipe (12) is further dispersed and is discharged from an air outlet pipe (14);
s2: under the drive of a fan (16) and a fan blade (17), the horizontal wind power drives large-particle liquid to be close to the inner wall, and the large-particle liquid is separated from gravity through a vacuum rectification separation tower (1);
s3: heavy resin oil passes through the lower packing area (4), is finally collected through a heavy resin oil cooler (7) and a heavy resin oil storage tank (8), the heavy resin oil in the collecting pipe (21) is further decompressed and heated through a reflux tank (9), further separation is carried out, and a part of the heavy resin oil is refluxed;
s4: light resin oil passes through upper packing area (3), and the large granule gas at edge gets into condenser (5) through gas outlet (24) in, carries out secondary condensation and separation, and the rethread reflux tank (9) carry out the secondary reflux, and middle gas is collected in light resin oil storage tank through condenser two (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011135056.XA CN112322320B (en) | 2020-10-21 | 2020-10-21 | Separation equipment for carbon-nine resin oil and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011135056.XA CN112322320B (en) | 2020-10-21 | 2020-10-21 | Separation equipment for carbon-nine resin oil and use method thereof |
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| Publication Number | Publication Date |
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| CN112322320A true CN112322320A (en) | 2021-02-05 |
| CN112322320B CN112322320B (en) | 2022-06-28 |
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| CN202011135056.XA Expired - Fee Related CN112322320B (en) | 2020-10-21 | 2020-10-21 | Separation equipment for carbon-nine resin oil and use method thereof |
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2020
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| CN112322320B (en) | 2022-06-28 |
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