CN105032283B - Granulation method and granulation system for 1, 3-bis(citraconoyl formimino) benzene - Google Patents
Granulation method and granulation system for 1, 3-bis(citraconoyl formimino) benzene Download PDFInfo
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- CN105032283B CN105032283B CN201510360630.4A CN201510360630A CN105032283B CN 105032283 B CN105032283 B CN 105032283B CN 201510360630 A CN201510360630 A CN 201510360630A CN 105032283 B CN105032283 B CN 105032283B
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Abstract
The invention discloses a granulation method for 1, 3-bis(citraconoyl formimino) benzene. The method comprises the following steps: heating the 1, 3-bis(citraconoyl formimino) benzene to be completely molten into a liquid state; then carrying out heat preservation on the liquid-state 1, 3-bis(citraconoyl formimino) benzene for 1-2 hours at 43-45 DEG C, so that the liquid-state 1, 3-bis(citraconoyl formimino) benzene is converted into glassy-state 1, 3-bis(citraconoyl formimino) benzene; adding the glassy-state 1, 3-bis(citraconoyl formimino) benzene into a granulator, and carrying out granulation. The invention also discloses a granulation system. Continuous granulation can be realized by the granulation system. According to the granulation method and the granulation system, the defects that an existing granulation method is long in extrusion and granulation time and incapable of realizing continuous production are overcome; the 1, 3-bis(citraconoyl formimino) benzene is converted into a glassy state and is then granulated, so that the operation environment is greatly improved, and the production efficiency is improved; the granulation method and the granulation system have a favorable market prospect.
Description
Technical field
The present invention relates to a kind of anti-recovery agent 1,3- is double（Citraconimidomethyl）The prilling process of benzene, further relates to resist
Recovery agent 1,3- is double（Citraconimidomethyl）The serialization prilling process of benzene, belongs to anti-recovery agent technical field.
Background technology
1,3- is double（Citraconimidomethyl）Benzene, also known as 1,3- pair（Citraconimidomethyl）Benzene, PK900, in nineteen ninety-five
Put goods on the market by Dutch Aksu-Nobel company, be in the world first with anti-recovery agent title sell product, its
Chemical constitution is as follows.1,3- is double（Citraconimidomethyl）Benzene melts at high temperature can directly be changed into good fluidity from solid-state
Liquid, glassy state can be first changed into from solid-state if slow liter if high-temperature, then liquid is changed into again from glassy state, otherwise
It is identical.
At present the prilling of the product generally adopts dry or wet extruding pelletization, and plastochondria is mostly column grain, shape
It is single, and due to being physical impact, column grain is easily loose, dissipates to form dust during transport, storage and use,
Dust pollution is caused, the healthy of operating personnel has been had a strong impact on, while also to transport, storage and using making troubles.It is dry
Method and wet granulation, in actual mechanical process, can there are problems that a lot：Firstly, since temperature control is unstable or material
Stand face is uneven, causes material to be heated uneven, occurs material melting discoloration in granulation process, causes to spend grain phenomenon, affects to produce
Product outward appearance and performance.Secondly, operation temperature is too high, is difficult to be molded in material long-time, affects manufacturing schedule；Temperature is too low, thing
Material solidification, easily blocks pipeline or comminutor lathe aperture, and damage equipment, technique is unable to serialization.3rd, control temperature plateau
Need operating personnel strictly to observe material to be heated situation, workload is big.Have no double to 1,3- using additive method at present（Citraconoyl
Formimino group）The report that benzene is granulated.
The content of the invention
The present invention is double for 1,3- in prior art（Citraconimidomethyl）Extrude present in benzene extruding and pelletizing process
The deficiency such as granulation time length, outward appearance be not good, there is provided 1,3- of one kind is double（Citraconimidomethyl）The prilling process of benzene, the method
Granulation time is short, be capable of achieving continuous prodution, and gained grain color is uniform, is difficult to spend grain, with good practicality.
Research finds that 1,3- is double（Citraconimidomethyl）Benzene stands 10h under complete liquid and still will not be molded, but
It is i.e. plastic in 8 minutes under glassy state.The glassy state, refers to vitreousness, i.e. atomic arrangement shortrange order, longrange disorder,
With state during similar glass atomic structure, 1,3- is double under the state（Citraconimidomethyl）Benzene has high viscosity, has
Mobility, but mobility is low.
The present invention is achieved by the following measures：
A kind of 1,3- is double（Citraconimidomethyl）The prilling process of benzene, comprises the following steps：
（1）1,3- is double（Citraconimidomethyl）Benzene heating makes it be completely melt into liquid；
（2）Liquid 1,3- is double（Citraconimidomethyl）Benzene is incubated 1～2h at a temperature of 43～45 DEG C, makes liquid 1,
3- is double（Citraconimidomethyl）It is double that benzene is completely transformed into glassy state 1,3-（Citraconimidomethyl）Benzene；
（3）By step（2）The glassy state 1,3- for obtaining is double（Citraconimidomethyl）Benzene is added and granulated in comminutor.
In above-mentioned prilling process, step（1）In, 1,3- is double（Citraconimidomethyl）Benzene is heated to 75～85 DEG C, makes
It is completely melt into liquid.
In above-mentioned prilling process, gained particle can be column, spherical or round pie, shape diversification.
In above-mentioned prilling process, the comminutor can select steel band comminutor, granulation mode conventionally to carry out
.
It is only double with 1,3- during granulation in above-mentioned prilling process（Citraconimidomethyl）Benzene is raw material, it is not necessary to add volume
The compositions such as outer binding agent, gained particle 1,3- is double（Citraconimidomethyl）Benzene content is 100%.
Present invention also offers a kind of 1,3- is double（Citraconimidomethyl）The serialization prilling process of benzene, including following step
Suddenly：
（1）1,3- is double（Citraconimidomethyl）Benzene is added in kettle 1, is warming up to 75～85 DEG C, makes 1,3- in kettle 1 double
（Citraconimidomethyl）Benzene is all changed into liquid, and keeps this temperature to make 1,3- in kettle 1 double（Citraconimidomethyl）Benzene
It is always liquid；
（2）Liquid 1,3- in kettle 1 is double（Citraconimidomethyl）Benzene enters kettle 2, kettle by the bottom Jing feed pipes of kettle 1
2 bottom is connected with feed back pipe, opens the material returning valve on feed back pipe, the granulation valve closed on feed back pipe, and 1,3- in kettle 2 is double
（Citraconimidomethyl）Benzene Jing feed back pipes are back to kettle 1；
（3）Weight de-multiplexing steps（2）Operation, make 1,3- double（Citraconimidomethyl）Benzene is constantly followed between kettle 1 and kettle 2
Ring, until the temperature of kettle 2 rises to 43～45 DEG C；
（4）After the temperature of kettle 2 rises to 43～45 DEG C, material returning valve is adjusted, holding part 1,3- is double（Citraconimidomethyl）
Benzene continues to circulate between kettle 1 and kettle 2 to maintain the temperature of kettle 2, and makes 1,3- of inflow kettle 2 double（Citraconimidomethyl）Benzene exists
1～2h can be stopped in kettle 2, to form glassy state 1 completely, 3- is double（Citraconimidomethyl）Benzene；
（5）Glassy state 1,3- is double（Citraconimidomethyl）Benzene is flowed out after kettle 2, opens granulation valve, and glassy state 1,3- is double（Lemon
Health acid imide methyl）Benzene is directly entered comminutor and is granulated.
In above-mentioned serialization prilling process, glassy state 1,3- is double（Citraconimidomethyl）Benzene is directly entered by granulating valve
Comminutor is granulated, remaining glassy state 1, and 3- is double（Citraconimidomethyl）Benzene is continued between kettle 1 and kettle 2 by material returning valve
Circulate to maintain the temperature of kettle 2.
In above-mentioned serialization prilling process, step（1）In, 1,3- is double（Citraconimidomethyl）Benzene is all fused into liquid
Afterwards, 1-2h is incubated at 75～85 DEG C, makes liquid 1,3- is double（Citraconimidomethyl）Benzene is more stable.
In above-mentioned serialization prilling process, kettle 2 adopts water-bath, the high temperature of kettle 1 to be changed into the material of liquid completely and constantly exist
Circulate in kettle 1 and kettle 2, by the circulation of high-temperature material, heating of the material to the outer water-bath of kettle 2 is realized, when the circulation of material makes
When temperature in the water-bath of kettle 2 reaches 43～45 DEG C, and then material reaches 43～45 DEG C in kettle 2.Hereafter material need not be circulated in a large number,
A small amount of circulation is only needed to keep kettle 2 to be always maintained in this temperature.Now, the temperature into the material in kettle 2 at 43～45 DEG C
The lower glass transition of degree, mobility is reduced, and viscosity increases, and gradually changes, and ultimately forms glassy state material.Adjustment feed back valve opening,
Material constant temperature 1-2h in kettle 2, the glassy state material for so being formed is set still to there is certain mobility, flow out from kettle 2 latter
Part Jing material returning valves are continued cycling through in kettle 1, and the granulation valve that a part of Jing is opened is entered in comminutor and granulated.This glassy state thing
Material into comminutor can rapid shaping, accelerate granulation speed.
In above-mentioned serialization prilling process, from the glassy state 1 that granulation valve flows out, 3- is double（Citraconimidomethyl）Benzene is entered
After in comminutor, 8-15min can complete plastochondria solidification.
In above-mentioned serialization prilling process, after opening granulation valve, in order that material 1,3- pair（Citraconimidomethyl）Benzene
1～2h of constant temperature is remained in kettle 2, according to circumstances the size of material returning valve is adjusted again.
In above-mentioned serialization prilling process, serialization granulation can be completed using following granulating system：
A kind of serialization granulating system, including kettle 1 and kettle 2, the bottom of kettle 1 is connected by feed pipe with the top of kettle 2, is sent
Expects pipe is provided with pump 1, and material is sent into kettle 2 by pump 1 by kettle 1；The bottom of kettle 2 is connected by feed back pipe with the top of kettle 1, feed back pipe
Material returning valve and granulation valve are provided with, granulation valve is connected with comminutor, the material flowed out from kettle 2 is entered in comminutor and granulate, returned
Material valve flows back to the amount of kettle 1 for control material, and pump 2 is additionally provided with feed back pipe, and the material flowed out from kettle 2 is passed through return valve by pump 2
Send kettle 1 back to or send into comminutor by granulating valve.
In above-mentioned granulating system, it is double that material refers to 1,3-（Citraconimidomethyl）Benzene.
In above-mentioned granulating system, the material returning valve and granulation valve on feed back pipe can respectively be controlled by three-way valve.
In above-mentioned granulating system, the bottom of kettle 1 and kettle 2 is equipped with outlet valve.
In above-mentioned serialization prilling process, the temperature of kettle 2 is maintained at 43～45 DEG C, and material stop 1 in kettle 2～
2h, so that the completely material of liquid gradually glass transition, material forms glassy state material from after the outflow of kettle 2, and mobility is reduced.
In the case where other conditions are constant, temperature is too high, and the mobility of material is still higher, and shaping is difficult into after comminutor, and
Easily there is the even colored grain phenomenon of irregular colour in product；Temperature is too low, and the mobility of material changes too low, and viscosity is excessive, granulation
Shi Rongyi plug-holes, gained grain shape is irregular.
The present invention does not adopt traditional dry or wet extruding pelletization, but by controlling the temperature of kettle 2, the flow velocity of material
Make 1,3- double etc. condition（Citraconimidomethyl）Benzene is formed and granulated again after glassy state material, and can realize serialization
Granulation makes full use of with the energy, and gained plastochondria is heated evenly, more attractive in appearance, shape diversification, substantially improves operation ring
Border, and can continuous prodution, improve production efficiency, overcome extruding pelletization time length, the Bu Nenglian of existing prilling process
The defect that continuous metaplasia is produced, with good market prospects.
The present invention has advantages below：
1st, material of the present invention ultimately forms glassy state thing into comminutor front glass state, the increase of Flow of Goods and Materials viscosity
Material, under this kind of state, 1,3- is double（Citraconimidomethyl）Benzene can be molded at short notice, accelerate granulation speed.
2nd, the present invention enables whole granulation process serialization to carry out, work by the adjustment of processing step and process conditions
Skill is simple, easy to operate, greatly reduces workload.And into comminutor material all the time in specified temp, particular state, granulation
It is more quick, operating environment is improved, improve production efficiency, gained plastochondria is uniform, attractive in appearance, shape diversification, with good
Market prospects.
Description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention.
In figure：1st, kettle 1,2, kettle 2,3, feed pipe, 4, pump 1,5, feed back pipe, 6, material returning valve, 7, granulation valve, 8, pump 2,9, make
Grain machine.
Specific embodiment
Describe the performance of the present invention in detail with reference to the accompanying drawings and examples, but they are not constituted to the present invention's
Limit, it is only for example.
Embodiment 1
It is double to 1,3- using the continuous granulation system shown in Fig. 1（Citraconimidomethyl）Benzene carries out continuous granulation, continuously
Granulating system includes that kettle 1 and the bottom of kettle 2, kettle 1 and kettle 2 are equipped with outlet valve, and the bottom of kettle 1 is upper with kettle 2 by feed pipe
Portion is connected, and feed pipe is provided with pump 1, and material is sent into kettle 2 by pump 1 by kettle 1；The bottom of kettle 2 passes through the top phase of feed back pipe and kettle 1
Even, feed back pipe is provided with material returning valve and granulation valve, and granulation valve is connected with comminutor, makes the material flowed out from kettle 2 enter comminutor
Middle granulation, material returning valve control material flows back to the amount of kettle 1, and pump 2 is additionally provided with feed back pipe, and pump 2 passes through back the material flowed out from kettle 2
Stream valve is sent kettle 1 back to or sends into comminutor by granulating valve.
Serialization prilling process is as follows：
（1）1,3- is double（Citraconimidomethyl）Benzene granular material is beaten to kettle 1 by continuous conveying device, and kettle 1 is heated to temperature
Spend for 80 DEG C so as in 1,3- it is double（Citraconimidomethyl）Benzene is completely melt as liquid, maintains temperature to make in kettle 11,3-
It is double（Citraconimidomethyl）Benzene is always liquid.（In practical operation, in order that the material of whole is changed into stable liquid
State, 1,3- is double（Citraconimidomethyl）Benzene is heated to insulation 1h after 80 DEG C and carries out follow-up operation again）.
（2）The outlet valve of the bottom of kettle 1 is opened, material Jing pumps 1 dozen close granulation valve, standard-sized sheet material returning valve, by kettle 2 to kettle 2
Material by the Jing feed backs pipe of pump 2 return kettle 1；
（3）According to step（2）Material is set constantly to circulate in kettle 1 and kettle 2, kettle 2 adopts water-bath, Matter Transfer to make kettle 2
Bath temperature reach 44 DEG C after, slightly close material returning valve, only make partial material in kettle 2 continue to circulate to tie up between kettle 1 and kettle 2
Hold kettle 2 and be constantly in 44 DEG C, while turning down for material returning valve makes the energy constant temperature in kettle 2 of the material in inflow kettle 2 stop 1～2h,
It is changed into glassy state material.
（4）After glassy state material flows out from kettle 2, fully open granulation valve, a part of glassy state feed back enters kettle
1, a part of glassy state material Jing granulations valve is directly entered comminutor, and granulation is completed according to routine operation in comminutor.
Material is i.e. plastic in 8 minutes in comminutor, completes granulation, plastochondria appearance color is uniform, without flower grain phenomenon.
Embodiment 2
It is double to 1,3- using continuous granulation system same as Example 1（Citraconimidomethyl）Benzene is continuously made
Grain, serialization prilling process is as follows：
（1）1,3- is double（Citraconimidomethyl）Benzene granular material is beaten to kettle 1 by continuous conveying device, and kettle 1 is heated to temperature
Spend for 80 DEG C, and constant temperature 1h.
（2）The outlet valve of the bottom of kettle 1 is opened, material Jing pumps 1 dozen close granulation valve, standard-sized sheet material returning valve, by kettle 2 to kettle 2
Material by the Jing feed backs pipe of pump 2 return kettle 1；
（3）According to step（2）Material is set constantly to circulate in kettle 1 and kettle 2, kettle 2 adopts water-bath, Matter Transfer to make water-bath
After temperature reaches 43 DEG C, material returning valve is slightly closed, only make the partial material in kettle 2 continue to circulate to maintain kettle 2 between kettle 1 and kettle 2
43 DEG C are constantly in, while turning down for material returning valve makes the energy constant temperature in kettle 2 of the material in inflow kettle 2 stop 1～2h, are changed into glass
Glass state material.
（4）After glassy state material flows out from kettle 2, fully open granulation valve, a part of glassy state feed back enters kettle
1, a part of glassy state material Jing granulations valve is directly entered comminutor, and granulation is completed according to routine operation in comminutor.
Material is i.e. plastic in 7.5 minutes in comminutor, completes granulation, and plastochondria appearance color is uniform, without flower grain phenomenon.
Embodiment 3
It is double to 1,3- using continuous granulation system same as Example 1（Citraconimidomethyl）Benzene is continuously made
Grain, serialization prilling process is as follows：
（1）1,3- is double（Citraconimidomethyl）Benzene granular material is beaten to kettle 1 by continuous conveying device, and kettle 1 is heated to temperature
Spend for 80 DEG C, and constant temperature 1h.
（2）The outlet valve of the bottom of kettle 1 is opened, material Jing pumps 1 dozen close granulation valve, standard-sized sheet material returning valve, by kettle 2 to kettle 2
Material by the Jing feed backs pipe of pump 2 return kettle 1；
（3）According to step（2）Material is set constantly to circulate in kettle 1 and kettle 2, kettle 2 adopts water-bath, Matter Transfer to make kettle 2
After bath temperature reaches 45 DEG C, material returning valve is slightly closed, only make the partial material in kettle 2 continue to circulate to maintain between kettle 1 and kettle 2
Kettle 2 is constantly in 45 DEG C, while turning down for material returning valve makes the energy constant temperature in kettle 2 of the material in inflow kettle 2 stop 1～2h, becomes
For glassy state material.
（4）After glassy state material flows out from kettle 2, fully open granulation valve, a part of glassy state feed back enters kettle
1, a part of glassy state material Jing granulations valve is directly entered comminutor, and granulation is completed according to routine operation in comminutor.
Material is i.e. plastic in 8 minutes in comminutor, completes granulation, and plastochondria appearance color is uniform, without flower grain phenomenon.
Embodiment 4
It is double to 1,3- using continuous granulation system same as Example 1（Citraconimidomethyl）Benzene is continuously made
Grain, serialization prilling process is as follows：
（1）1,3- is double（Citraconimidomethyl）Benzene granular material is beaten to kettle 1 by continuous conveying device, and kettle 1 is heated to temperature
Spend for 75 DEG C, and constant temperature 1h.
（2）The outlet valve of the bottom of kettle 1 is opened, material Jing pumps 1 dozen close granulation valve, standard-sized sheet material returning valve, by kettle 2 to kettle 2
Material by the Jing feed backs pipe of pump 2 return kettle 1；
（3）According to step（2）Material is set constantly to circulate in kettle 1 and kettle 2, kettle 2 adopts water-bath, Matter Transfer to make kettle 2
After bath temperature reaches 44 DEG C, material returning valve is slightly closed, only make the partial material in kettle 2 continue to circulate to maintain between kettle 1 and kettle 2
Kettle 2 is constantly in 44 DEG C, while turning down for material returning valve makes the energy constant temperature in kettle 2 of the material in inflow kettle 2 stop 1～2h, becomes
For glassy state material.
（4）After glassy state material flows out from kettle 2, fully open granulation valve, a part of glassy state feed back enters kettle
1, a part of glassy state material Jing granulations valve is directly entered comminutor, and granulation is completed according to routine operation in comminutor.
Material is i.e. plastic in 8 minutes in comminutor, completes granulation, and plastochondria appearance color is uniform, without flower grain phenomenon.
Embodiment 4
It is double to 1,3- using continuous granulation system same as Example 1（Citraconimidomethyl）Benzene is continuously made
Grain, serialization prilling process is as follows：
（1）1,3- is double（Citraconimidomethyl）Benzene granular material is beaten to kettle 1 by continuous conveying device, and kettle 1 is heated to temperature
Spend for 85 DEG C, and constant temperature 1h.
（2）The outlet valve of the bottom of kettle 1 is opened, material Jing pumps 1 dozen close granulation valve, standard-sized sheet material returning valve, by kettle 2 to kettle 2
Material by the Jing feed backs pipe of pump 2 return kettle 1；
（3）According to step（2）Material is set constantly to circulate in kettle 1 and kettle 2, kettle 2 adopts water-bath, Matter Transfer to make kettle 2
After bath temperature reaches 44 DEG C, material returning valve is slightly closed, only make the partial material in kettle 2 continue to circulate to maintain between kettle 1 and kettle 2
Kettle 2 is constantly in 44 DEG C, while turning down for material returning valve makes the energy constant temperature in kettle 2 of the material in inflow kettle 2 stop 1～2h, becomes
For glassy state material.
（4）After glassy state material flows out from kettle 2, fully open granulation valve, so a part of glassy state feed back
Enter kettle 1, a part of glassy state material Jing granulations valve is directly entered comminutor, granulation is completed according to routine operation in comminutor.
Material is i.e. plastic in 8 minutes in comminutor, completes granulation, and plastochondria appearance color is uniform, without flower grain phenomenon.
Comparative example 1
It is double to 1,3- using the continuous granulation system shown in Fig. 1（Citraconimidomethyl）Benzene carries out continuous granulation, continuously
Change prilling process as follows：
（1）1,3- is double（Citraconimidomethyl）Benzene granular material is beaten to kettle 1 by continuous conveying device, and kettle 1 is heated to temperature
Spend for 80 DEG C, and constant temperature 1h.
（2）The outlet valve of the bottom of kettle 1 is opened, material Jing pumps 1 dozen close granulation valve, standard-sized sheet material returning valve, by kettle 2 to kettle 2
Material by the Jing feed backs pipe of pump 2 return kettle 1；
（3）According to step（2）Material is set constantly to circulate in kettle 1 and kettle 2, kettle 2 adopts water-bath, Matter Transfer to make kettle 2
After bath temperature reaches 50 DEG C, material returning valve is slightly closed, only make the partial material in kettle 2 continue to circulate to maintain between kettle 1 and kettle 2
Kettle 2 is constantly in 50 DEG C, while turning down for material returning valve makes the energy constant temperature in kettle 2 of the material in inflow kettle 2 stop 1～2h.
（4）The material that 1-2h is stopped in kettle 2 is stayed in from after the outflow of kettle 2, fully open granulation valve, so a part of material is returned
Kettle 1 is flowed into, a part of material Jing granulations valve is directly entered comminutor, granulation is completed according to routine operation in comminutor.
Material 6-8h in comminutor could be molded, and time-consuming, be unfavorable for continuous prodution, and product appearance irregular colour
It is even, there is colored grain phenomenon.
Comparative example 2
It is double to 1,3- using the continuous granulation system shown in Fig. 1（Citraconimidomethyl）Benzene carries out continuous granulation, continuously
Change prilling process as follows：
（1）1,3- is double（Citraconimidomethyl）Benzene granular material is beaten to kettle 1 by continuous conveying device, and kettle 1 is heated to temperature
Spend for 80 DEG C, and constant temperature 1h.
（2）The outlet valve of the bottom of kettle 1 is opened, material Jing pumps 1 dozen close granulation valve, standard-sized sheet material returning valve, by kettle 2 to kettle 2
Material by the Jing feed backs pipe of pump 2 return kettle 1；
（3）According to step（2）Material is set constantly to circulate in kettle 1 and kettle 2, kettle 2 adopts water-bath, Matter Transfer to make kettle 2
After bath temperature reaches 40 DEG C, material returning valve is slightly closed, only make the partial material in kettle 2 continue to circulate to maintain between kettle 1 and kettle 2
Kettle 2 is constantly in 40 DEG C, while turning down for material returning valve makes the material in inflow kettle 2 that 1～2h can be stopped in kettle 2.
（4）The material that 1-2h is stopped in kettle 2 is stayed in from after the outflow of kettle 2, fully open granulation valve, so a part of material is returned
Kettle 1 is flowed into, a part of material Jing granulations valve is directly entered comminutor, granulation is completed according to routine operation in comminutor.
The partial material solidification blocking comminutor lathe aperture in comminutor, granulation failure；And plastochondria is in irregular shape, sternly
Ghost image rings product appearance.This is because the temperature in kettle 2 is too low, the material viscosity that material is formed after stopping in kettle 2 is excessive, no
Beneficial to granulation.
Claims (7)
1. a kind of 1,3- is double（Citraconimidomethyl）The prilling process of benzene, is characterized in that comprising the following steps：
（1）1,3- is double（Citraconimidomethyl）Benzene heating makes it be completely melt into liquid；
（2）Liquid 1,3- is double（Citraconimidomethyl）Benzene is incubated 1～2h at a temperature of 43～45 DEG C, makes liquid 1, and 3- is double
（Citraconimidomethyl）It is double that benzene is completely transformed into glassy state 1,3-（Citraconimidomethyl）Benzene；
（3）By step（2）The glassy state 1,3- for obtaining is double（Citraconimidomethyl）Benzene is added and granulated in comminutor.
2. prilling process according to claim 1, is characterized in that：Step（1）In, 1,3- is double（Citraconimidomethyl）
Benzene is heated to 75～85 DEG C so as to be completely melt into liquid.
3. prilling process according to claim 1, is characterized in that：Gained particle is column, spherical or round pie.
4. prilling process according to claim 1, is characterized in that：The comminutor is steel band comminutor.
5. prilling process according to claim 1, is characterized in that：It is only double with 1,3- during granulation（Citraconimidomethyl）Benzene
For raw material, it is not necessary to add the compositions such as extra binding agent, gained particle 1,3- is double（Citraconimidomethyl）Benzene content is
100%。
6. a kind of 1,3- is double（Citraconimidomethyl）The serialization prilling process of benzene, is characterized in that comprising the following steps：
（1）1,3- is double（Citraconimidomethyl）Benzene is added in kettle 1, is warming up to 75～85 DEG C, makes 1,3- in kettle 1 double（Lemon
Health acid imide methyl）Benzene is all changed into liquid, and keeps this temperature to make 1,3- in kettle 1 double（Citraconimidomethyl）Benzene is always
For liquid；
（2）Liquid 1,3- in kettle 1 is double（Citraconimidomethyl）Benzene enters kettle 2 by the bottom Jing feed pipes of kettle 1, kettle 2
Bottom is connected with feed back pipe, opens the material returning valve on feed back pipe, the granulation valve closed on feed back pipe, and 1,3- in kettle 2 is double（Lemon
Health acid imide methyl）Benzene Jing feed back pipes are back to kettle 1；
（3）Weight de-multiplexing steps（2）Operation, make 1,3- double（Citraconimidomethyl）Benzene is constantly circulated between kettle 1 and kettle 2,
Until the temperature of kettle 2 rises to 43～45 DEG C；
（4）After the temperature of kettle 2 rises to 43～45 DEG C, material returning valve is adjusted, holding part 1,3- is double（Citraconimidomethyl）Benzene after
Continue and circulate between kettle 1 and kettle 2 to maintain the temperature of kettle 2, and make 1,3- of inflow kettle 2 double（Citraconimidomethyl）Benzene is in kettle 2
In can stop 1～2h, to form glassy state 1,3- is double（Citraconimidomethyl）Benzene；
（5）Glassy state 1,3- is double（Citraconimidomethyl）Benzene is flowed out after kettle 2, opens granulation valve, and glassy state 1,3- is double（Citraconoyl
Formimino group）Benzene is directly entered comminutor and is granulated.
7. serialization prilling process according to claim 6, is characterized in that：The glassy state 1,3- flowed out from granulation valve is double
（Citraconimidomethyl）After benzene is entered in comminutor, 8-15min completes plastochondria solidification.
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