CN109432813A - A kind of continuous crystallisation formula anthracene purification system and method - Google Patents
A kind of continuous crystallisation formula anthracene purification system and method Download PDFInfo
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- CN109432813A CN109432813A CN201811480809.3A CN201811480809A CN109432813A CN 109432813 A CN109432813 A CN 109432813A CN 201811480809 A CN201811480809 A CN 201811480809A CN 109432813 A CN109432813 A CN 109432813A
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- anthracene
- crystallizing pan
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- mixing
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- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 title claims abstract description 404
- 238000002425 crystallisation Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000000746 purification Methods 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 92
- 238000002156 mixing Methods 0.000 claims abstract description 65
- 230000008025 crystallization Effects 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 239000013078 crystal Substances 0.000 claims abstract description 20
- 239000007787 solid Substances 0.000 claims abstract description 20
- 230000008676 import Effects 0.000 claims abstract description 17
- 239000002904 solvent Substances 0.000 claims abstract description 16
- 230000008901 benefit Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 57
- 238000000605 extraction Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 13
- 101150006573 PAN1 gene Proteins 0.000 description 24
- 230000006872 improvement Effects 0.000 description 8
- 239000000047 product Substances 0.000 description 6
- 239000000686 essence Substances 0.000 description 5
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 4
- 230000034655 secondary growth Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 2
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 1
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 1
- SKPPEIDJGJGRGK-UHFFFAOYSA-N Panacen Natural products CCC1=CC=CC2=C1C1OC(C=C=CBr)CC1O2 SKPPEIDJGJGRGK-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/004—Fractional crystallisation; Fractionating or rectifying columns
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention proposes a kind of continuous crystallisation formula anthracene purification system and method, the continuous crystallisation formula anthracene purification system includes mixing crystallizing pan, equipment for separating liquid from solid, the multistage anthracene crystallizing pan formed of being connected by least two anthracene crystallizing pans.The mixing crystallizing pan is equipped with crude anthracene feed inlet, solvent feed mouth, mixed material discharge port, the anthracene crystallizing pans at different levels are equipped with mixed material import, mixed material exports, wherein: when the mixed material import of the anthracene crystallizing pan of prime connects the mixed material outlet of the mixed material discharge port of the mixing crystallizing pan or the anthracene crystallizing pan of previous stage, when the mixed material of the anthracene crystallizing pan of prime exports the mixed material import for connecting anthracene crystallizing pan described in rear stage or the equipment for separating liquid from solid.There are following remarkable advantages by the present invention: crystal grain is grown by continuous several times, and partial size is significantly improved；In crystallization process, material, which generates, is in flow regime, therefore crystal grain is not easy to be attached in pot wall.
Description
Technical field
The present invention relates to organic chemistry fileds, and in particular to a kind of continuous crystallisation formula anthracene purification system and method.
Background technique
Crude anthracene is the semi-finished product of coal tar processing, and main component (mass fraction) is anthracene 50%-55%, luxuriant and rich with fragrance 20%~25%
With carbazole 1%~3%.
In the prior art, generally crude anthracene is purified using periodic crystallisation formula purifying technique, it may be assumed that lead crude anthracene and solvent
Enter to the domestic mixing of a crystallization, then reduce the temperature of material, so that material generates crystallization.Periodic crystallisation formula purifying technique is deposited
In following defect: 1, the grain crystalline substance of a decrease temperature crystalline, excessive temperature differentials, the crystal grain of generation is smaller, in subsequent separation of solid and liquid process,
A large amount of crystal grain is washed away by solvent, to reduce the yield of product；2, in crystallization process, material is in a crystallizing pan always
It is interior, it is therefore, brilliant to grow from being liable to stick in pot wall, to further reduced the yield of product.
Summary of the invention
In order to solve the above technical problems, one aspect of the present invention proposes a kind of continuous crystallisation formula anthracene purification system, tool
Body technique scheme is as follows:
A kind of continuous crystallisation formula anthracene purification system comprising:
Mixing crystallizing pan, the mixing crystallizing pan are equipped with crude anthracene feed inlet, solvent feed mouth, mixed material discharge port；
Equipment for separating liquid from solid；
It is connected to being connected between the mixing crystallizing pan and the equipment for separating liquid from solid by least two anthracene crystallizing pans
The multistage anthracene crystallizing pan of formation, the anthracene crystallizing pan is equipped with mixed material import, mixed material exports, wherein: current
The mixed material import of the anthracene crystallizing pan of grade connects the mixed material discharge port or previous stage of the mixing crystallizing pan
The mixed material of the anthracene crystallizing pan exports, when the mixed material outlet connection rear stage institute of the anthracene crystallizing pan of prime
State anthracene crystallizing pan mixed material import or the equipment for separating liquid from solid.
As a further improvement of the present invention, the mixing crystallizing pan, be respectively connected with phase on the anthracene crystallizing pan at different levels
The heating component answered so that the temperature of charge in the mixing crystallizing pan, the anthracene crystallizing pan at different levels be heated to it is predetermined
Value.
As a further improvement of the present invention the mixing crystallizing pan, be equipped with height at the top of the anthracene crystallizing pan at different levels
Warm steam outlet.
As a further improvement of the present invention, the heating component on the mixing crystallizing pan is to be set in the mixing
Hot water on the outer wall of crystallizing pan follows bad chamber.
As a further improvement of the present invention, the heating component on the anthracene crystallizing pans at different levels is to be arranged described
Hot-water coil pipe inside anthracene crystallizing pan, the outer wall of the anthracene crystallizing pan is equipped with to be connected with the both ends of the hot-water coil pipe respectively
The water inlet of hot water and hot water outlet connect.
It as a further improvement of the present invention, further include material extraction system, the material extraction system is for driving
Material in the anthracene crystallizing pan of previous stage flows into the anthracene crystallizing pan of rear stage.
It as a further improvement of the present invention, further include hot water circuit drive system, the hot water circuit drive system
For driving hot water to circulate in the hot-water coil pipe in the anthracene crystallizing pans at different levels.
It as a further improvement of the present invention, further include steam discharge header, the top of the anthracene crystallizing pans at different levels
It is equipped with the high-temperature steam discharge outlet connecting with the steam discharge header, the outlet end of the steam discharge header is connected to outer
The condensing unit in portion.
Another aspect of the present invention additionally provides a kind of continuous crystallisation formula anthracene method of purification comprising:
Mixing, initial crystallization: crude anthracene, solvent are directed into mixing crystallizing pan with scheduled velocity ratio and stirs evenly and completes
Initial crystallization；
Continuous multi-stage crystallization: the material of initial crystallization is directed into the multistage anthracene crystallizing pan, material is followed by each
To realize that continuous multi-stage crystallizes in the grade anthracene crystallizing pan, in which: the temperature in the mixing crystallizing pan is higher than directly
Temperature in the anthracene crystallizing pan of connection, the temperature in the anthracene crystallizing pan of previous stage are higher than the essence of rear stage
Temperature in anthracene crystallizing pan；
It is separated by solid-liquid separation: the material after continuous multi-stage crystallizes is directed into equipment for separating liquid from solid, it is therein to filter out
Crystal grain.
As a further improvement of the present invention, the multistage anthracene crystallizing pan is by first order anthracene crystallizing pan, second level essence
Anthracene crystallizing pan and third level anthracene crystallizing pan are sequentially connected in series to be formed, and the first order anthracene crystallizing pan and the mixing crystallizing pan are straight
It connects in succession, the third level anthracene crystallizing pan is connect with the equipment for separating liquid from solid；Wherein:
The crude anthracene, solvent are directed into mixing crystallizing pan with the velocity ratio of 1:1, and the temperature in the mixing crystallizing pan is set
108 DEG C~112 DEG C are set to, the temperature setting in the first order anthracene crystallizing pan is 88 DEG C~92 DEG C, the second level anthracene
Temperature setting in crystallizing pan is 73 DEG C~75 DEG C, and the temperature setting in the third level anthracene crystallizing pan is 63 DEG C~67 DEG C.
Compared with periodic crystallisation formula anthracene purifying technique in the prior art, continuous crystallisation formula anthracene provided by the invention is mentioned
Pure system and method, there is following significant technological merit: 1, crystal grain is grown by continuous several times, and partial size is significantly improved,
To prevent crystal grain from being washed away in separation of solid and liquid by solvent, the yield of product is improved；2, during entire crystallization, material is generated
In flow regime, therefore crystal grain is not easy to be attached in pot wall, to further improve the yield of product.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of continuous crystallisation formula anthracene purification system provided by the invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Embodiment one
As shown in Figure 1, embodiment one provide a kind of continuous crystallisation formula anthracene purification system include mixing crystallizing pan 1, it is more
The component parts such as grade anthracene crystallizing pan, equipment for separating liquid from solid.Wherein:
The mixing crystallizing pan 1 is equipped with crude anthracene feed inlet 11, solvent feed mouth 12, mixed material discharge port 13.Crude anthracene,
Solvent enters through the crude anthracene feed inlet 11, the solvent feed mouth 12 uniformly mixed and first in the mixing crystallizing pan 1 respectively
Step crystallization.
The multistage anthracene crystallizing pan is connected to the mixed material discharge port 13 of the mixing crystallizing pan 1 and is separated by solid-liquid separation dress
Between the feed inlet set.The multistage anthracene crystallizing pan is connected in series by least two-stage (a) anthracene crystallizing pan.The essences at different levels
Mixed material import is equipped on anthracene crystallizing pan, mixed material exports, wherein: when the mixture of the anthracene crystallizing pan of prime
The mixed material that material import connects anthracene crystallizing pan described in the mixed material discharge port 13 or upper level of the mixing crystallizing pan 1 goes out
Mouthful, when the mixed material outlet of the anthracene crystallizing pan of prime connects the mixed material import of anthracene crystallizing pan described in rear stage
Or the equipment for separating liquid from solid.
As shown in Figure 1, in certain embodiments, the multistage anthracene crystallizing pan is by first order anthracene crystallizing pan 2, the
Second level anthracene crystallizing pan 3 and third level anthracene crystallizing pan 4 are connected in series.The first order anthracene crystallizing pan 2, second level essence
Anthracene crystallizing pan 3, the structure of the third level anthracene crystallizing pan 4 are identical.
The first order anthracene crystallizing pan 2 includes the first mixed material import 21, the first mixed material outlet 22；Described
Second level anthracene crystallizing pan 3 includes the second mixed material import 31, the second mixed material outlet 32；The third level anthracene crystallizing pan
4 include third mixed material import 41, third mixed material outlet 42.Wherein: the first of the first order anthracene crystallizing pan 2 is mixed
It closes material inlet 21 to connect through pipeline with the mixed material discharge port 13 of the mixing crystallizing pan 1, the first order anthracene crystallization
The first mixed material outlet 22 of pot 2 is connect through pipeline with the second mixed material import 31 of the second level anthracene crystallizing pan 3；
Second mixed material of the second level anthracene crystallizing pan 3 exports 32 thirds through pipeline Yu the third level anthracene crystallizing pan 4
Mixed material import 41 connects；Third mixed material outlet 42 and the separation of solid and liquid of the third level anthracene crystallizing pan 4 fill
Set connection.
Certainly, in other embodiments, the anthracene crystallization of other numbers such as two, four, five also can be set
Pot, to realize the continuous crystallisation of other series such as two-stage, level Four, Pyatyi.
Material mixes in the mixing crystallizing pan 1 and after initial crystallization through described in the mixed material discharge port 13 entrance
Multistage anthracene crystallizing pan, and anthracene crystallizing pans at different levels are flowed successively through to complete continuous multi-stage crystallization, every grade crystallizes, in the process, mixes
The crystal grain closed in material all obtains a secondary growth, and crystal grain is gradually increased in flow process.Through afterbody anthracene crystallizing pan knot
Mixed material after crystalline substance is finally fed in the equipment for separating liquid from solid, so that die separation is gone out mother liquor.It is real as shown in Figure 1
It applies in example, flows successively through first order anthracene crystallizing pan 2,3 and of second level anthracene crystallizing pan through the mixed material after initial crystallization
Third level anthracene crystallizing pan 4 is continuously crystallized three times with realizing.
It is in certain embodiments, described in order to realize smooth outflow of the material between forward and backward grade anthracene crystallizing pan
Continuous crystallisation formula anthracene purification system further includes material extraction system 6, and the material extraction system 6 is connected to previous stage anthracene knot
Between the material feed inlet of the anthracene crystallizing pan of the mixed material discharge port and rear stage of brilliant pot.The material in the present embodiment
If extraction system 6 includes dry material, extraction is pumped, and in treatment process, is opened corresponding material extraction pump, can correspondingly be driven
The mixed material of the anthracene crystallizing pan of previous stage is directed into the anthracene crystallizing pan of rear stage.
It can smoothly be crystallized since the higher mixed material of temperature enters under the lower environment of temperature, in order to realize knot
It is brilliant.In crystallization process, need that the temperature in the mixing crystallizing pan 1 and anthracene crystallizing pan at different levels is rationally arranged, so that
Between the anthracene crystallizing pan and the mixing crystallizing pan 1 being directly connected to the mixing crystallizing pan 1, the anthracene crystallizing pan of rear stage
There are certain temperature difference (temperature drops) between the anthracene crystallizing pan of previous stage.Guarantee temperature > the in the mixing crystallizing pan 1
The temperature in temperature > third level anthracene crystallizing pan 4 in temperature > second level anthracene crystallizing pan 3 in level-one anthracene crystallizing pan 2.
For the adjusting to the temperature in the mixing crystallizing pan 1, the anthracene crystallizing pan at different levels, so that mixing crystallizing pan
The temperature in temperature, subsequent anthracene crystallizing pans at different levels in 1 meets pre-provisioning request.The mixing crystallizing pan 1, the essence at different levels
Corresponding heating component is respectively connected on anthracene crystallizing pan.As shown in Figure 1, in certain embodiments:
The heating component on the mixing crystallizing pan 1 is the hot water being set on the outer wall of the mixing crystallizing pan 1
Bad chamber 15 is followed, the hot water follows bad chamber 15 and is equipped with the hot water inlet and hot water outlet connecting with external hot-tub, hot-tub
Interior hot water enters after hot water follows bad chamber 15 with 1 heat exchange of mixing crystallizing pan through hot water inlet so that in mixing crystallizing pan 1
Temperature be maintained at predetermined value, complete the hot water of heat exchange and follow bad chamber 15 through hot water outlet outflow hot water and return to hot-tub.
The heating component on the anthracene crystallizing pans at different levels is then the hot water being arranged in inside the anthracene crystallizing pan
Coil pipe, the outer wall of the anthracene crystallizing pan are equipped with the water inlet of hot water and hot water that connect respectively with the both ends of the hot-water coil pipe
Water outlet.The material in hot water and the anthracene crystallizing pan in hot-water coil pipe generates heat exchange, so that the anthracene knot
Temperature in brilliant pot is maintained at predetermined value.In embodiment as shown in Figure 1, the first order anthracene crystallizing pan 2 is equipped with the first heat
Water water inlet 23 and the first hot water outlet 24, the second level anthracene crystallizing pan 3 are equipped with the second water inlet of hot water 33 and the
Two hot water outlets 34；The third level anthracene crystallizing pan 4 is equipped with third water inlet of hot water 43 and the 4th hot water outlet 44.
In order to promote hot water to flow in the hot-water coil pipe in the anthracene crystallizing pans at different levels, as shown in Figure 1, in some tools
In body embodiment, the continuous crystallisation formula anthracene purification system further includes hot water circuit drive system 5, the hot water circuit driving
System 5 is connected between the water inlet of hot water and hot water outlet of the anthracene crystallizing pans at different levels, hot water circuit driving system
System 5 includes several hot water transfer tubes, in treatment process, opens corresponding hot water transfer tube, hot water can be driven corresponding
Flowing in hot-water coil pipe in the anthracene crystallizing pan.
In heat exchanging process, the material meeting partial gasification in anthracene crystallizing pans at different levels forms high-temperature steam, to export high temperature
Steam, as shown in Figure 1, in certain embodiments, the continuous crystallisation formula anthracene purification system further includes that steam discharge is total
Pipe 7 is equipped with the high-temperature steam discharge outlet connecting with the steam discharge header 7, the steaming at the top of anthracene crystallizing pans at different levels
The outlet end of vapour discharge header 7 is connected to external condensing unit, and the high-temperature steam in anthracene crystallizing pans at different levels is through the steam
Discharge header 7 is expelled to condensing unit, to complete condensation and subsequent recovery processing.In embodiment as shown in Figure 1, described first
Grade anthracene crystallizing pan 2 is equipped with the first high-temperature steam discharge outlet 25, and the second level anthracene crystallizing pan 3 is steamed equipped with the second high temperature
Vapour discharge outlet 35；The third level anthracene crystallizing pan 4 is equipped with third high temperature steam outlet 45.
In addition, being equipped with blender in the mixing crystallizing pan 1, the anthracene crystallizing pan at different levels to guarantee crystallization effect.
Embodiment two
Embodiment two provides a kind of continuous crystallisation formula anthracene method of purification, uses the continuous knot in above-described embodiment one
Brilliant formula anthracene purification system completes the purification to crude anthracene.
With continued reference to FIG. 1, the continuous crystallisation formula anthracene method of purification in the present embodiment includes:
Mixing, initial crystallization: crude anthracene, solvent are directed into mixing crystallizing pan 1 with scheduled velocity ratio, after mixing evenly
It stands, to complete mixing and initial crystallization.
Continuous multi-stage crystallization: the material of initial crystallization is directed into the multistage anthracene crystallizing pan, material is followed by each
The grade anthracene crystallizing pan is to realize that continuous multi-stage crystallizes, in which: the temperature in the mixing crystallizing pan 1, which is higher than, directly to be connected
The temperature in the anthracene crystallizing pan connect, the temperature in previous stage anthracene crystallizing pan are higher than the temperature in rear stage anthracene crystallizing pan
Degree.
It is separated by solid-liquid separation: the material after continuous multi-stage crystallizes is directed into equipment for separating liquid from solid, it is therein to filter out
Crystal grain.
Material mixes in the mixing crystallizing pan 1 and after initial crystallization through described in the mixed material discharge port 13 entrance
Multistage anthracene crystallizing pan, and flow successively through anthracene crystallizing pans at different levels and crystallized with completing continuous multi-stage, in every grade of crystallization process, mixing
Crystal grain in material all obtains a secondary growth, and crystal grain is gradually increased in flow process.
In a specific embodiment, the main component (mass fraction) of crude anthracene to be purified is anthracene 50%-55%, phenanthrene
20%~25% and carbazole 1%~3%.The multistage anthracene crystallizing pan is crystallized by first order anthracene crystallizing pan 2, second level anthracene
Pot 3 and third level anthracene crystallizing pan 4 are sequentially connected in series to be formed, and the first order anthracene crystallizing pan 2 and the mixing crystallizing pan 1 are direct
Connection, the third level anthracene crystallizing pan 4 are connect with equipment for separating liquid from solid.
In purification process, the crude anthracene, solvent are directed into mixing crystallizing pan 1 with the velocity ratio of 1:1, the mixing crystallization
Temperature setting in pot 1 is 108 DEG C~112 DEG C, and the temperature setting in the first order anthracene crystallizing pan 2 is 88 DEG C~92 DEG C,
Temperature setting in the second level anthracene crystallizing pan 3 is 73 DEG C~75 DEG C, and the temperature in the third level anthracene crystallizing pan 4 is set
It is set to 63 DEG C~67 DEG C.
In the embodiment, high-temperature material generates initial crystallization in mixing crystallizing pan 1 first, and material is through mixing crystallizing pan 1
After entering to first order anthracene crystallizing pan 2, temperature reduces by 20 DEG C or so, and crystal grain therein obtains a secondary growth, then: material
Second level anthracene crystallizing pan 3 and third level anthracene crystallizing pan 4 are sequentially entered, temperature successively reduces by 10 DEG C or so, crystalline substance therein
Grain is grown twice in succession again.As it can be seen that in the present embodiment, in flow process, material has successively passed through four knots continuous
Brilliant process, crystal grain gradually produce increase.Further, since material generates repeatedly flowing, therefore, crystal grain during entire crystallization
It is not easy to be attached in pot wall, to further improve yield.
Compared with periodic crystallisation formula anthracene purifying technique in the prior art, continuous crystallisation formula anthracene provided by the invention is mentioned
There is following significant technical advantage in pure method:
1, by multistage continuous crystallisation, the partial size of crystal grain is significantly improved, to prevent crystal grain in subsequent solid-liquid point
It is washed away from middle by solvent, improves the yield of product；
2, during entire crystallization, material, which generates, is in flow regime, therefore crystal grain is not easy to be attached in pot wall, thus into
One step improves the yield of product.
The description with certain particularity detailed enough has been carried out to the present invention above.Ordinary skill in fields
Personnel are it should be understood that the description in embodiment is only exemplary, before without departing from true spirit and scope of the present invention
Put make it is all change all should belong to protection scope of the present invention.Scope of the present invention is by the power
What sharp claim was defined, rather than limited by the foregoing description in embodiment.
Claims (10)
1. a kind of continuous crystallisation formula anthracene purification system, characterized in that it comprises:
Mixing crystallizing pan, the mixing crystallizing pan are equipped with crude anthracene feed inlet, solvent feed mouth, mixed material discharge port；
Equipment for separating liquid from solid；
Being connected by least two anthracene crystallizing pans between the mixing crystallizing pan and the equipment for separating liquid from solid is connected to be formed
Multistage anthracene crystallizing pan, mixed material import, mixed material outlet, wherein are equipped on the anthracene crystallizing pans at different levels: when
The mixed material import of the anthracene crystallizing pan of prime connects the mixed material discharge port or previous stage of the mixing crystallizing pan
The anthracene crystallizing pan mixed material outlet, when prime the anthracene crystallizing pan mixed material outlet connection rear stage
The mixed material import of the anthracene crystallizing pan or the equipment for separating liquid from solid.
2. continuous crystallisation formula anthracene purification system as described in claim 1, it is characterised in that: the mixing kettle, at different levels described
Corresponding heating component is respectively connected on anthracene crystallizing pan, so that in the mixing crystallizing pan, the anthracene crystallizing pan at different levels
Temperature of charge be heated to predetermined value.
3. continuous crystallisation formula anthracene purification system as claimed in claim 2, which is characterized in that the mixing kettle, at different levels described
High-temperature steam discharge outlet is equipped at the top of anthracene crystallizing pan.
4. the continuous crystallisation formula anthracene purification system as described in the upper benefit of power requires 2, which is characterized in that described on the mixing kettle
Heating component is that the hot water being set on the outer wall of the mixing crystallizing pan follows bad chamber.
5. continuous crystallisation formula anthracene purification system as claimed in claim 2, which is characterized in that on the anthracene crystallizing pans at different levels
The heating component be the hot-water coil pipe being arranged in inside the anthracene crystallizing pan, the outer wall of the anthracene crystallizing pan is equipped with
The water inlet of hot water and hot water outlet being connect respectively with the both ends of the hot-water coil pipe.
6. continuous crystallisation formula anthracene purification system as described in claim 1, which is characterized in that it further includes material extraction system
System, the essence that the material extraction system is used to that the material in the anthracene crystallizing pan of previous stage to be driven to flow into rear stage
In anthracene crystallizing pan.
7. continuous crystallisation formula anthracene purification system as claimed in claim 5, which is characterized in that it further includes hot water circuit driving
System, the hot water circuit drive system is for driving hot water recycle stream in the hot-water coil pipe in the anthracene crystallizing pans at different levels
It is dynamic.
8. continuous crystallisation formula anthracene purification system as described in claim 1, which is characterized in that it further includes that steam discharge is total
It manages, is equipped with the high-temperature steam discharge outlet connecting with the steam discharge header at the top of the anthracene crystallizing pans at different levels, it is described
The outlet end of steam discharge header is connected to external condensing unit.
9. a kind of continuous crystallisation formula anthracene method of purification, it is characterised in that comprising:
Mixing, initial crystallization: crude anthracene, solvent are directed into mixing crystallizing pan with scheduled velocity ratio and stirs evenly and completes preliminary
Crystallization；
Continuous multi-stage crystallization: the material of initial crystallization is directed into the multistage anthracene crystallizing pan, material is followed by institutes at different levels
It states in anthracene crystallizing pan to realize that continuous multi-stage crystallizes, in which: the temperature in the mixing crystallizing pan, which is higher than, directly to be connected
The anthracene crystallizing pan in temperature, the temperature in the anthracene crystallizing pan of previous stage is higher than the anthracene knot of rear stage
Temperature in brilliant pot；
It is separated by solid-liquid separation: the material after continuous multi-stage crystallizes being directed into equipment for separating liquid from solid, to filter out crystal grain therein.
10. continuous crystallisation formula anthracene method of purification as claimed in claim 9, which is characterized in that the multistage anthracene crystallizing pan
It is sequentially connected in series and is formed by first order anthracene crystallizing pan, second level anthracene crystallizing pan and third level anthracene crystallizing pan, the first order
Anthracene crystallizing pan is directly connected to the mixing crystallizing pan, and the third level anthracene crystallizing pan and the equipment for separating liquid from solid connect
It connects；Wherein:
The crude anthracene, solvent are directed into mixing crystallizing pan with the velocity ratio of 1:1, and the temperature setting in the mixing crystallizing pan is
108 DEG C~112 DEG C, the temperature setting in the first order anthracene crystallizing pan is 88 DEG C~92 DEG C, the second level anthracene crystallization
Temperature setting in pot is 73 DEG C~75 DEG C, and the temperature setting in the third level anthracene crystallizing pan is 63 DEG C~67 DEG C.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112090103A (en) * | 2020-09-30 | 2020-12-18 | 盐城汇百实业有限公司 | Carbazole purification system and control method thereof |
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| GB811559A (en) * | 1957-09-13 | 1959-04-08 | Directie Staatsmijnen Nl | Improvements in or relating to the continuous crystallisation of solids from their solutions |
| CN102643169A (en) * | 2012-04-25 | 2012-08-22 | 北京化工大学 | Method for purifying resorcinol by means of continuous crystallization |
| CN209714344U (en) * | 2018-12-05 | 2019-12-03 | 盐城汇百实业有限公司 | A kind of continuous crystallisation formula anthracene purification system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB811559A (en) * | 1957-09-13 | 1959-04-08 | Directie Staatsmijnen Nl | Improvements in or relating to the continuous crystallisation of solids from their solutions |
| CN102643169A (en) * | 2012-04-25 | 2012-08-22 | 北京化工大学 | Method for purifying resorcinol by means of continuous crystallization |
| CN209714344U (en) * | 2018-12-05 | 2019-12-03 | 盐城汇百实业有限公司 | A kind of continuous crystallisation formula anthracene purification system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112090103A (en) * | 2020-09-30 | 2020-12-18 | 盐城汇百实业有限公司 | Carbazole purification system and control method thereof |
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