CN102432513A - Method for centrifugation and drying of dicumyl peroxide - Google Patents
Method for centrifugation and drying of dicumyl peroxide Download PDFInfo
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- CN102432513A CN102432513A CN2011102998254A CN201110299825A CN102432513A CN 102432513 A CN102432513 A CN 102432513A CN 2011102998254 A CN2011102998254 A CN 2011102998254A CN 201110299825 A CN201110299825 A CN 201110299825A CN 102432513 A CN102432513 A CN 102432513A
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- cumyl peroxide
- dicumyl peroxide
- drying
- centrifugal
- sieve
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Abstract
The invention discloses a method for centrifugation and drying of dicumyl peroxide. The method comprises the following steps of 1, carrying out centrifugal separation of a crystallized mixed solution of dicumyl peroxide and a solvent to obtain dicumyl peroxide solids and filtrate, 2, adding the dicumyl peroxide solids into a vibration screening machine, and carrying out primary screening to obtain dicumyl peroxide particles, 3, adding the dicumyl peroxide particles into a drying machine, and carrying out drying, 4, carrying out secondary screening to obtain dicumyl peroxide particles and dicumyl peroxide powder, 5, carrying out thawing and recrystallization of the dicumyl peroxide powder obtained by the primary screening and the secondary screening, and 6, repeating the step 1-5 to obtain dicumyl peroxide particles. The method for centrifugation and drying of dicumyl peroxide adopts a grading treatment method, and thus drying and after thawing processes of dicumyl peroxide powder are avoided and only a drying process of dicumyl peroxide particles is carried out. Therefore, the method for centrifugation and drying of dicumyl peroxide has an easy drying process, shortens drying time, and has dicumyl peroxide drying efficiency of above 1.5 tons per hour.
Description
Technical field
The present invention relates to a kind of centrifugal and drying means of Di Cumyl Peroxide 99.
Background technology
In the prior art, the centrifugal and drying means of Di Cumyl Peroxide 99 is following: with Di Cumyl Peroxide 99 after the crystallization and alcohol blend, isolate solid peroxygen diisopropylbenzene(DIPB) and filtrating two portions through whizzer; The solid peroxygen diisopropylbenzene(DIPB) that again spinning is gone out wherein has moisture and alcohol fugitive constituent, dries through fluidized bed dryer, obtains the Di Cumyl Peroxide 99 of finished product; Carry out gradation through reciprocating sieve again, obtain particulate state Di Cumyl Peroxide 99 and Powdered Di Cumyl Peroxide 99.
Existing method has following shortcoming: (1) is well-known, and the more Powdered Di Cumyl Peroxide 99 quality of particulate state Di Cumyl Peroxide 99 is more good, so in the actual mechanical process; After the multistep operation; Still need Powdered Di Cumyl Peroxide 99 be carried out thawing recrystallization again,, not only waste energy until obtaining granular Di Cumyl Peroxide 99; And technical process is many, and is time-consuming bothersome.When (2) Powdered Di Cumyl Peroxide 99 mixes with the particulate state Di Cumyl Peroxide 99, because the water cut of powder material is more, so dry difficulty is bigger.
Summary of the invention
The present invention is just in order to overcome above-mentioned deficiency; Technical problem to be solved provide a kind of time of drying short, operation is simple, particulate state Di Cumyl Peroxide 99 growing amount is big, the centrifugal and drying means of the Di Cumyl Peroxide 99 that Powdered Di Cumyl Peroxide 99 growing amount is little.
For solving the problems of the technologies described above, the technical scheme that the present invention adopted is following:
A kind of centrifugal and drying means of Di Cumyl Peroxide 99, it comprises the steps:
1, the mixed solution of 2～5 ℃ of Di Cumyl Peroxide 99s of crystalline and solvent be will pass through, solid peroxygen diisopropylbenzene(DIPB) and filtrating will be centrifugated in the adding rotary and centrifugal machine;
2, the solid peroxygen diisopropylbenzene(DIPB) that spinning is obtained adds in the vibrations screen-dividing machine, carries out first time sub-sieve and obtains particulate state and Powdered Di Cumyl Peroxide 99;
3, the particulate state Di Cumyl Peroxide 99 that the first time, sub-sieve obtained is added continuous fluidized bed drying machine and under 38～38.5 ℃ temperature, dry processing;
4, the Di Cumyl Peroxide 99 after will drying adds in the vibrations screen-dividing machine, carries out the sub-sieve second time, obtains particulate state and Powdered Di Cumyl Peroxide 99;
5, with in the step 2 for the first time in sub-sieve and the step 4 for the second time the Powdered Di Cumyl Peroxide 99 that obtains of sub-sieve melt, recrystallization, repeating step (1) obtains the particulate state Di Cumyl Peroxide 99 to (4).
In the centrifugal separation processes, adopting massfraction is the alcohol flushing more than 95%, does not remain on the solid matter to guarantee filtrating described in the step 1.Whizzer is provided with the alcohol pipeline, and in the centrifugal process, with alcohol flushing, and then it is centrifugal to close continued.
Solvent described in the step 1 is an alcohol.
In order to obtain better centrifugal separating effect, the rotating speed of spinning described in the step 1 is 1400～1600r/h.
In order to obtain better vibrations sub-sieve effect, the velocity of vibration of the screen-dividing machine of vibrations described in the step 2 is 2～5Hz.
Melt temperature described in the step 5 is 45～50 ℃.
Beneficial effect: the present invention compared with prior art has following advantage: present method adopts the method for stage treatment; After spinning, earlier particulate state and Powdered Di Cumyl Peroxide 99 are carried out sub-sieve, then the particulate state Di Cumyl Peroxide 99 is got into subsequent processing and carry out drying, sub-sieve again; Powdered Di Cumyl Peroxide 99 directly melts recrystallization to be handled; Saved Powdered Di Cumyl Peroxide 99 has been carried out dry operation of melting again earlier, and only carried out the drying process of particulate state Di Cumyl Peroxide 99, easily dry; Shortened time of drying simultaneously, per hour dry Di Cumyl Peroxide 99 is more than 1.5 tons.
Embodiment
Embodiment 1
A kind of centrifugal and drying means of Di Cumyl Peroxide 99, it comprises the steps:
1, will pass through the mixed solution of 2～5 ℃ of Di Cumyl Peroxide 99s of crystalline and alcohol, adopting massfraction is that alcohol more than 95% adds while washing in the rotary and centrifugal machine, with the rotating speed of 1500r/h it is centrifugated into solid peroxygen diisopropylbenzene(DIPB) and filtrating,
2, the solid peroxygen diisopropylbenzene(DIPB) that spinning is obtained adds in the vibrations screen-dividing machine, and the velocity of vibration of regulating the vibrations screen-dividing machine is 2～5Hz, carries out first time sub-sieve and obtains particulate state and Powdered Di Cumyl Peroxide 99;
3, the particulate state Di Cumyl Peroxide 99 that the first time, sub-sieve obtained is added continuous fluidized bed drying machine and under 38～38.5 ℃ temperature, dry processing;
4, the Di Cumyl Peroxide 99 after will drying adds in the vibrations screen-dividing machine, carries out the sub-sieve second time, obtains particulate state and Powdered Di Cumyl Peroxide 99;
5, with Powdered Di Cumyl Peroxide 99 that sub-sieve obtains melts the second time in sub-sieve and the step (4) for the first time in the step (2), melt temperature is 48 ℃, recrystallization then, and repeating step (1) obtains the particulate state Di Cumyl Peroxide 99 to (4).
Embodiment 2
A kind of centrifugal and drying means of Di Cumyl Peroxide 99, it comprises the steps:
1, will pass through the mixed solution of 2～5 ℃ of Di Cumyl Peroxide 99s of crystalline and alcohol, adopting massfraction is that alcohol more than 95% adds while washing in the rotary and centrifugal machine, with the rotating speed of 1400r/h it is centrifugated into solid peroxygen diisopropylbenzene(DIPB) and filtrating,
2, the solid peroxygen diisopropylbenzene(DIPB) that spinning is obtained adds in the vibrations screen-dividing machine, and the velocity of vibration of regulating the vibrations screen-dividing machine is 2～5Hz, carries out first time sub-sieve and obtains particulate state and Powdered Di Cumyl Peroxide 99;
3, the particulate state Di Cumyl Peroxide 99 that the first time, sub-sieve obtained is added continuous fluidized bed drying machine and under 38～38.5 ℃ temperature, dry processing;
4, the Di Cumyl Peroxide 99 after will drying adds in the vibrations screen-dividing machine, carries out the sub-sieve second time, obtains particulate state and Powdered Di Cumyl Peroxide 99;
5, with Powdered Di Cumyl Peroxide 99 that sub-sieve obtains melts the second time in sub-sieve and the step (4) for the first time in the step (2), melt temperature is 47 ℃, recrystallization then, and repeating step (1) obtains the particulate state Di Cumyl Peroxide 99 to (4).
Embodiment 3
A kind of centrifugal and drying means of Di Cumyl Peroxide 99, it comprises the steps:
1, will pass through the mixed solution of 2～5 ℃ of Di Cumyl Peroxide 99s of crystalline and alcohol, adopting massfraction is that alcohol more than 95% adds while washing in the rotary and centrifugal machine, with the rotating speed of 1600r/h it is centrifugated into solid peroxygen diisopropylbenzene(DIPB) and filtrating,
2, the solid peroxygen diisopropylbenzene(DIPB) that spinning is obtained adds in the vibrations screen-dividing machine, and the velocity of vibration of regulating the vibrations screen-dividing machine is 2～5Hz, carries out first time sub-sieve and obtains particulate state and Powdered Di Cumyl Peroxide 99;
3, the particulate state Di Cumyl Peroxide 99 that the first time, sub-sieve obtained is added continuous fluidized bed drying machine and under 38～38.5 ℃ temperature, dry processing;
4, the Di Cumyl Peroxide 99 after will drying adds in the vibrations screen-dividing machine, carries out the sub-sieve second time, obtains particulate state and Powdered Di Cumyl Peroxide 99;
5, with Powdered Di Cumyl Peroxide 99 that sub-sieve obtains melts the second time in sub-sieve and the step (4) for the first time in the step (2), melt temperature is 46 ℃, recrystallization then, and repeating step (1) obtains the particulate state Di Cumyl Peroxide 99 to (4).
Need to prove that above embodiment is only unrestricted in order to technical scheme of the present invention to be described.Although the present invention is specified with reference to preferred embodiment; Those of ordinary skill in the art is to be understood that; Can make amendment or be equal to replacement the technical scheme of invention, and not break away from the scope of technical scheme of the present invention, it all should be encompassed in the claim scope of the present invention.
Claims (6)
1. the centrifugal and drying means of a Di Cumyl Peroxide 99 is characterized in that it comprises the steps:
(1) will pass through the mixed solution of 2～5 ℃ of Di Cumyl Peroxide 99s of crystalline and solvent, and add in the rotary and centrifugal machine and be centrifugated into solid peroxygen diisopropylbenzene(DIPB) and filtrating;
(2) the solid peroxygen diisopropylbenzene(DIPB) that spinning is obtained adds in the vibrations screen-dividing machine, carries out first time sub-sieve and obtains particulate state and Powdered Di Cumyl Peroxide 99;
(3) the particulate state Di Cumyl Peroxide 99 that the first time, sub-sieve obtained is added continuous fluidized bed drying machine and under 38～38.5 ℃ temperature, dry processing;
(4) Di Cumyl Peroxide 99 after will drying adds in the vibrations screen-dividing machine, carries out the sub-sieve second time, obtains particulate state and Powdered Di Cumyl Peroxide 99;
(5) with in the step (2) for the first time in sub-sieve and the step (4) second time Powdered Di Cumyl Peroxide 99 that sub-sieve obtains melt, recrystallization, repeating step (1) obtains the particulate state Di Cumyl Peroxide 99 to (4).
2. the centrifugal and drying means of Di Cumyl Peroxide 99 according to claim 1 is characterized in that: described in the step (1) in the centrifugal separation processes, adopting massfraction is that alcohol 95% or more washes.
3. the centrifugal and drying means of Di Cumyl Peroxide 99 according to claim 1, it is characterized in that: the solvent described in the step (1) is an alcohol.
4. the centrifugal and drying means of Di Cumyl Peroxide 99 according to claim 1, it is characterized in that: the rotating speed of spinning is 1400～1600r/h described in the step (1).
5. the centrifugal and drying means of Di Cumyl Peroxide 99 according to claim 1 is characterized in that: the velocity of vibration of the screen-dividing machine of vibrations described in the step (2) is 2～5Hz.
6. the centrifugal and drying means of Di Cumyl Peroxide 99 according to claim 1, it is characterized in that: the melt temperature described in the step (5) is 45～50 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102998254A CN102432513A (en) | 2011-10-09 | 2011-10-09 | Method for centrifugation and drying of dicumyl peroxide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102998254A CN102432513A (en) | 2011-10-09 | 2011-10-09 | Method for centrifugation and drying of dicumyl peroxide |
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| CN102432513A true CN102432513A (en) | 2012-05-02 |
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| CN2011102998254A Pending CN102432513A (en) | 2011-10-09 | 2011-10-09 | Method for centrifugation and drying of dicumyl peroxide |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104340615A (en) * | 2013-07-23 | 2015-02-11 | 中国石油化工集团公司 | Groove-vibrating and sieve-vibrating device and screening method |
| CN107235882A (en) * | 2017-07-26 | 2017-10-10 | 江苏道明化学有限公司 | A kind of finished product morphological process method of cumyl peroxide |
| CN107883678A (en) * | 2017-10-17 | 2018-04-06 | 太仓塑料助剂厂有限公司 | The drying means of cumyl peroxide |
| CN110041240A (en) * | 2019-05-27 | 2019-07-23 | 太仓塑料助剂厂有限公司 | The washing separation system and method for cumyl peroxide |
| CN110052075A (en) * | 2019-06-05 | 2019-07-26 | 太仓塑料助剂厂有限公司 | The separation method and system of cumyl peroxide |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0948754A (en) * | 1995-08-03 | 1997-02-18 | Nippon Oil & Fats Co Ltd | Purification of dicumyl peroxide |
-
2011
- 2011-10-09 CN CN2011102998254A patent/CN102432513A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0948754A (en) * | 1995-08-03 | 1997-02-18 | Nippon Oil & Fats Co Ltd | Purification of dicumyl peroxide |
Non-Patent Citations (2)
| Title |
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| 刘文生: "交联剂DCP生产中酒精母液萃取工艺的改进", 《化学推进剂与高分子材料》 * |
| 孙导林等: "过氧化二异丙苯(DCP)的干燥特性与干燥工艺研究", 《干燥技术与设备》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104340615A (en) * | 2013-07-23 | 2015-02-11 | 中国石油化工集团公司 | Groove-vibrating and sieve-vibrating device and screening method |
| CN104340615B (en) * | 2013-07-23 | 2017-01-25 | 中国石油化工集团公司 | Groove-vibrating and sieve-vibrating device and screening method |
| CN107235882A (en) * | 2017-07-26 | 2017-10-10 | 江苏道明化学有限公司 | A kind of finished product morphological process method of cumyl peroxide |
| CN107883678A (en) * | 2017-10-17 | 2018-04-06 | 太仓塑料助剂厂有限公司 | The drying means of cumyl peroxide |
| CN110041240A (en) * | 2019-05-27 | 2019-07-23 | 太仓塑料助剂厂有限公司 | The washing separation system and method for cumyl peroxide |
| CN110052075A (en) * | 2019-06-05 | 2019-07-26 | 太仓塑料助剂厂有限公司 | The separation method and system of cumyl peroxide |
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