CN102101816A - Decolorizing process for yellow dicyclopentadiene - Google Patents
Decolorizing process for yellow dicyclopentadiene Download PDFInfo
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- CN102101816A CN102101816A CN2010105125541A CN201010512554A CN102101816A CN 102101816 A CN102101816 A CN 102101816A CN 2010105125541 A CN2010105125541 A CN 2010105125541A CN 201010512554 A CN201010512554 A CN 201010512554A CN 102101816 A CN102101816 A CN 102101816A
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- dicyclopentadiene
- yellow
- black
- decolouring
- decolorizing
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Abstract
The invention belongs to the field of chemical technologies and particularly discloses a decolorizing process for yellow dicyclopentadiene. The decolorizing process for yellow dicyclopentadiene is characterized by comprising filling yellow dicyclopentadiene into a decolorizing kettle to heat the yellow dicyclopentadiene by steam and to perform vacuum extraction and separating to obtain white dicyclopentadiene and dark dicyclopentadiene. In the invention, the process is simple, the product purity and quality are high, product profits are increased effectively to a certain extent, energy cost is reduced, and the process is suitable to be promoted and used widely.
Description
(1) technical field
The invention belongs to chemical technology field, particularly a kind of yellow dicyclopentadiene decoloration process.
(2) background technology
Dicyclopentadiene (DCPD) is one of main component of by product C 5 fraction in the petroleum cracking process, and it is the unsaturated cyclic hydrocarbon compound that is formed by the cyclopentadiene dimerization.DCPD has the reactive behavior of height, not only can autohemagglutination forms petroleum resin, can also with the resin of the multiple structure types of prepared in reaction such as the vinylcarbinol that contains hydroxyl, phenol.
Though the dicyclopentadiene that industrial production makes is through decolouring, owing to contain small amount of impurities, it is yellow that product mostly is greatly, can directly utilize for the less demanding industry of color, but have the light goods of requirement then can't directly use for color.
(3) summary of the invention
The present invention provides the yellow dicyclopentadiene decoloration process that a kind of step is simple, product purity is high in order to remedy the deficiencies in the prior art.
The present invention is achieved through the following technical solutions:
A kind of yellow dicyclopentadiene decoloration process is characterized in that: yellow dicyclopentadiene is injected the decolouring still carry out steam heating and vacuum extraction, separate obtaining white dicyclopentadiene and black dicyclopentadiene.
The present invention will further decolour, separate through the yellow dicyclopentadiene of decolouring, to improve the quality of products.
Described black dicyclopentadiene is taken off the directly decolouring of heavy back, separates obtaining white dicyclopentadiene and black dicyclopentadiene residue.The former decolouring flow process of black dicyclopentadiene is to take off earlier heavily, and repolymerization takes off light, decolouring then, long flow path, and the cost height, the present invention shortens its flow process, when effectively cutting down the consumption of energy cost, improves the output of white dicyclopentadiene and black dicyclopentadiene residue.
Can reclaim once more after the described black dicyclopentadiene residue that finally obtains is collected, reach the maximum using of resource.
Technology of the present invention is simple, and product purity height, quality are good, effectively increase productive profit to a certain extent, and the cost that cuts down the consumption of energy is suitable for wide popularization and application.
(4) embodiment
Embodiment: the yellow dicyclopentadiene of 60% ratio is injected the decolouring still carry out steam heating and vacuum extraction, separate that to obtain purity be about 76% white dicyclopentadiene, all the other 40% are the black dicyclopentadiene.
By producing 5.9 tons of yellow dicyclopentadiene every day, product price adopts present price.
Yellow dicyclopentadiene benefit is: 5.9 tons * 2600 yuan/ton=15340 yuan
Decolouring back benefit is: 2121 yuan=18570 yuan of (5.9 tons * 60% * 5500 yuan/ton+5.9 tons * 40% * 1200 yuan/ton) * (the 1-17% tax rate) * (1-1.3% loss)-energy consumption costs
Year synergy: (18270-15340) * 330=266977 unit
Described black dicyclopentadiene is taken off the directly decolouring of heavy back, separates to obtain 67.36% white dicyclopentadiene (purity 78%) and 32.48% black dicyclopentadiene residue, reclaims once more after the black dicyclopentadiene residue that finally the obtains collection.
The product ratio that obtains in the former technical process of black dicyclopentadiene is white dicyclopentadiene 50% (purity 70%), edible vegetable oil 24%, black dicyclopentadiene residue 25%.
Claims (3)
1. a yellow dicyclopentadiene decoloration process is characterized in that: yellow dicyclopentadiene is injected the decolouring still carry out steam heating and vacuum extraction, separate obtaining white dicyclopentadiene and black dicyclopentadiene.
2. yellow dicyclopentadiene decoloration process according to claim 1 is characterized in that: described black dicyclopentadiene is taken off the directly decolouring of heavy back, separates obtaining white dicyclopentadiene and black dicyclopentadiene residue.
3. yellow dicyclopentadiene decoloration process according to claim 1 and 2 is characterized in that: reclaim once more after the described black dicyclopentadiene residue that finally obtains is collected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105125541A CN102101816A (en) | 2010-10-20 | 2010-10-20 | Decolorizing process for yellow dicyclopentadiene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105125541A CN102101816A (en) | 2010-10-20 | 2010-10-20 | Decolorizing process for yellow dicyclopentadiene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102101816A true CN102101816A (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105125541A Pending CN102101816A (en) | 2010-10-20 | 2010-10-20 | Decolorizing process for yellow dicyclopentadiene |
Country Status (1)
| Country | Link |
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| CN (1) | CN102101816A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106588556A (en) * | 2015-10-14 | 2017-04-26 | 中国石油化工股份有限公司 | Dicyclopentadiene decolorizing method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225014A (en) * | 2008-01-31 | 2008-07-23 | 戴俊堂 | Method for extracting dicyclopentadiene and light benzene from byproduct primary distiller of coal-coking crude benzene |
-
2010
- 2010-10-20 CN CN2010105125541A patent/CN102101816A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225014A (en) * | 2008-01-31 | 2008-07-23 | 戴俊堂 | Method for extracting dicyclopentadiene and light benzene from byproduct primary distiller of coal-coking crude benzene |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106588556A (en) * | 2015-10-14 | 2017-04-26 | 中国石油化工股份有限公司 | Dicyclopentadiene decolorizing method |
| CN106588556B (en) * | 2015-10-14 | 2019-12-31 | 中国石油化工股份有限公司 | Dicyclopentadiene decoloring method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110622 |