CN105461563A - Method for preparation of antioxidant 1076 with ultrasonic wave - Google Patents
Method for preparation of antioxidant 1076 with ultrasonic wave Download PDFInfo
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- CN105461563A CN105461563A CN201410419527.8A CN201410419527A CN105461563A CN 105461563 A CN105461563 A CN 105461563A CN 201410419527 A CN201410419527 A CN 201410419527A CN 105461563 A CN105461563 A CN 105461563A
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Abstract
The invention relates to a method for preparation of an antioxidant 1076 with ultrasonic wave. The method includes: putting raw materials octadecanol, 3, 5-methyl ester and a catalyst into a reaction kettle, starting a heating device to melt materials to a degree of 1/3, then turning on a vacuum pump and an ultrasonic device to melt the materials completely under ultrasonic wave and negative pressure conditions, then entering esterification reaction, and acquiring the antioxidant 1076 eventually. By means of the mechanical action, cavitation effect and thermal effect, the method generates mechanical, thermal, optical, electrical, chemical and a series of effects so as to realize esterification reaction of the antioxidant 1076. The antioxidant 1076 prepared by the method has quality exceeding the industrial standard, the yield can reach more than 98%, the reaction time is shortened, the reaction temperature is decreased, the process is simple, and the equipment investment and the operation cost are low.
Description
Technical field:
The present invention relates to a kind of production method of Chemicals, particularly a kind of method adopting ultrasonic wave to prepare antioxidant 1076.
Background technology:
Antioxidant 1076 is phenols oxygenants, and be the excellent nontoxic antioxidant of uncontamination, its intermiscibility is good, not painted, wash resistant, and volatility is little, has heat-resisting and water-fast extraction ability preferably.Be widely used in polyolefine, polymeric amide, polyester, polyvinyl chloride, ABS resin and various rubber and petroleum products.Antioxidant 1076 and UV light absorber with there being synergistic effect, also normal working in coordination with auxiliary antioxidant 168 uses to improve antioxidant effect.
First the method that tradition prepares antioxidant 1076 is mechanical stirring, then obtains antioxidant 1076 through crystallization, centrifugal, drying, and the antioxidant 1076 quality prepared, yield are lower, long reaction time, technical process are complicated, facility investment and process cost high.
Summary of the invention:
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, and a kind of method adopting ultrasonic wave to prepare antioxidant 1076 is provided, the antioxidant 1076 quality that the method is prepared exceedes industry standard, yield reaches more than 98%, reaction times shortens, temperature of reaction reduces, technical process is easy, facility investment and process cost low.
As above conceive, technical scheme of the present invention is: a kind of method adopting ultrasonic wave to prepare antioxidant 1076, it is characterized in that: raw material stearyl alcohol, 3.5-methyl esters, catalyzer are dropped in reactor, open heat riser material, when material melts 1/3, unlatching vacuum pump and ultrasonic unit make material all melt under ultrasonic wave and condition of negative pressure, start to enter esterification, finally obtain antioxidant 1076.
Above-mentioned ultrasonic frequency is 20KHz-40KHz.
Above-mentioned be opened to from ultrasonic wave reaction the end time be 1-2 hour.
Above-mentioned esterification terminal temperature 90-100 DEG C.
Above-mentioned esterification is instead carried out under negative pressure, and pressure is-0.1MPa.
The present invention, by hyperacoustic mechanical effect, cavatition and heat effect, produces the series of effects such as mechanics, calorifics, optics, electricity and chemistry thus realizes the esterification of antioxidant 1076.The antioxidant 1076 quality that the method is prepared exceedes industry standard, and yield reaches more than 98%, and the reaction times shortens, temperature of reaction reduces, technical process is easy, facility investment and process cost low.
Embodiment:
A kind of method adopting ultrasonic wave to produce antioxidant 1076, raw material stearyl alcohol, 3.5-methyl esters, catalyzer is the steps include: to drop in reactor, adjust equipment, open heat riser material, when material melts 1/3, open vacuum pump and ultrasonic unit, material is very fast all to be melted under ultrasonic wave and condition of negative pressure, starts to enter esterification.Above-mentioned ultrasonic frequency is 20KHz-40KHz, be opened to from ultrasonic wave the reaction end time be 1-2 hour, esterification terminal temperature 90-100 DEG C, above-mentioned esterification instead carry out under negative pressure, pressure is-0.1MPa.
Claims (5)
1. the method adopting ultrasonic wave to prepare antioxidant 1076, it is characterized in that: raw material stearyl alcohol, 3.5-methyl esters, catalyzer are dropped in reactor, open heat riser material, when material melts 1/3, unlatching vacuum pump and ultrasonic unit make material all melt under ultrasonic wave and condition of negative pressure, start to enter esterification, finally obtain antioxidant 1076.
2. a kind of method adopting ultrasonic wave to prepare antioxidant 1076 according to claim 1, is characterized in that: above-mentioned ultrasonic frequency is 20KHz-40KHz.
3. a kind of method adopting ultrasonic wave to prepare antioxidant 1076 according to claim 1, is characterized in that: above-mentioned be opened to from ultrasonic wave reaction the end time be 1-2 hour.
4. a kind of method adopting ultrasonic wave to prepare antioxidant 1076 according to claim 1, is characterized in that: above-mentioned esterification terminal temperature 90-100 DEG C.
5. a kind of method adopting ultrasonic wave to prepare antioxidant 1076 according to claim 1, it is characterized in that: above-mentioned esterification is instead carried out under negative pressure, pressure is-0.1MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410419527.8A CN105461563A (en) | 2014-08-22 | 2014-08-22 | Method for preparation of antioxidant 1076 with ultrasonic wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410419527.8A CN105461563A (en) | 2014-08-22 | 2014-08-22 | Method for preparation of antioxidant 1076 with ultrasonic wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105461563A true CN105461563A (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410419527.8A Pending CN105461563A (en) | 2014-08-22 | 2014-08-22 | Method for preparation of antioxidant 1076 with ultrasonic wave |
Country Status (1)
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| CN (1) | CN105461563A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109096102A (en) * | 2018-10-08 | 2018-12-28 | 天津工业大学 | A kind of synthetic technology of Hinered phenols antioxidant |
-
2014
- 2014-08-22 CN CN201410419527.8A patent/CN105461563A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109096102A (en) * | 2018-10-08 | 2018-12-28 | 天津工业大学 | A kind of synthetic technology of Hinered phenols antioxidant |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160406 |