CN102690200A - Antioxidant 1076 production system - Google Patents
Antioxidant 1076 production system Download PDFInfo
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- CN102690200A CN102690200A CN2012100839173A CN201210083917A CN102690200A CN 102690200 A CN102690200 A CN 102690200A CN 2012100839173 A CN2012100839173 A CN 2012100839173A CN 201210083917 A CN201210083917 A CN 201210083917A CN 102690200 A CN102690200 A CN 102690200A
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- kettle
- antioxidant
- still
- production system
- separating centrifuge
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Abstract
The invention relates to an antioxidant 1076 production system, comprising an addition kettle, a transesterification kettle and a distillation kettle. A first centrifugal separator is provided between the addition kettle and the transesterification kettle. A second centrifugal separator is provided between the transesterification kettle and the distillation kettle. The addition kettle, the first centrifugal separator, the transesterification kettle, the second centrifugal separator and the distillation kettle are connected in order. The production system of the invention has the advantages of easy operation, high yield and purity of products, and high utilization rate of by-products.
Description
Technical field
The present invention relates to a kind of production system, be specifically related to a kind of production system of oxidation inhibitor.
Background technology
The chemical name of antioxidant 1076 is β (3; The 5-di-tert-butyl-hydroxy phenyl) propionic acid octadecanol ester; It is a kind of Hinered phenols antioxidant efficiently; With most polymers good consistency is arranged, the good discoloration that light and heat causes that prevents is arranged, can suppress the oxidative degradation and the thermal destruction of many organic cpds and polymkeric substance.
Antioxidant 1076 has better heat-resisting and water-fast extraction ability, is widely used in Vilaterm, Vestolen PP 7052, gathers formic acid, in ABS resin, PS, SE alcohol, engineering plastics, viton and the petroleum products.
The production system of antioxidant 1076 is perfect inadequately at present, and production efficiency is low, and the purity of gained finished product is lower, and the sub product that produces in its production process can not obtain good use and processing, contaminate environment.
Summary of the invention
Goal of the invention: the objective of the invention is provides a kind of easy to operate in order to overcome deficiency of the prior art, and product yield and purity are high, the production system of the antioxidant 1076 that the by-product utilization rate is high.
Technical scheme: in order to solve the problems of the technologies described above; The production system of a kind of antioxidant 1076 of the present invention; It comprises addition still, ester interchange vessel and still kettle; Between said addition still and ester interchange vessel, be provided with first separating centrifuge, between said ester interchange vessel and still kettle, be provided with second separating centrifuge, the order of connection is addition still, first separating centrifuge, ester interchange vessel, second separating centrifuge and still kettle.
Said second separating centrifuge links to each other with Minton dryer.
Said still kettle links to each other with condensing surface.
The present invention is with 2; 6-DI-tert-butylphenol compounds and methyl acrylate, octadecanol make antioxidant 1076 through catalyzed reaction, i.e. β (3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid octadecanol ester; In whole flow process, be the main body with addition still, ester interchange vessel, still kettle; Be equipped with pipeline and utility appliance, they are connected into integral body, realize flowing water work.
In the said addition still with 2,6 di t butyl phenol, methyl acrylate, catalyzer, neutralizing agent, solvent through addition reaction, generate β (3; The 5-di-tert-butyl-hydroxy phenyl) methyl propionate, kettle cover have charging opening, vacuum port, nitrogen inlet, distillation outlet, reflux inlet etc.; Used thermal source leans on Boiler Steam; Explosion-proof anti-static device is installed on the still, and charging utilizes vacuum to suck or the header tank gravity flow, and pressure, temperature can be passed through control automatically.
In the said ester interchange vessel with β (3; The 5-di-tert-butyl-hydroxy phenyl) methyl propionate, octadecanol, catalyzer, neutralizing agent, solvent generate antioxidant 1076 through transesterification reaction; Through filtering crystallisation by cooling, spinning is making finished product through vacuum-drying.Waste liquid gets into still kettle and reclaims solvent and portioned product.
The waste liquid that in the said still kettle spinning in β (3, the 5-di-tert-butyl-hydroxy phenyl) methyl propionate of producing and the antioxidant 1076 process is come out is through the device of distillating recovering solvent and portioned product.
Said addition reaction still, transesterification reactor all design the nitrogen inlet, are reflected at oxygen free condition, carry out under the nitrogen protection; Not only safe but also guarantee to finish quality product before crystallization in addition reaction still, transesterification reactor reaction, adopt the plate and frame press filtration; Fine particle is removed, guaranteed that the product foreign matter content reduces 0.01%, solvent recuperation is carried out in still kettle; Distillation tower (being increased to 8m from 6m) is increased in employing, increases the condenser condenses area (from 10m
2Be increased to 20m
2), making and reclaim solvent and increase to 90% from 75%, product drying changes into from original normal pressure heat drying and vacuumizes low heated drying, accelerates rate of drying, has also improved quality product, and water cut reduces by 0.05% than original.
Beneficial effect: the present invention compared with prior art, its remarkable advantage is: one-piece construction of the present invention is simple, and is simple to operate between each reaction kettle, reduced labour intensity, improved working efficiency, improved product gas purity and utilization ratio simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Wherein:
1, addition still; 2, ester interchange vessel; 3, still kettle; 4, first separating centrifuge; 5, second separating centrifuge; 6, Minton dryer; 7, condensing surface
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
As shown in Figure 1; The production system of a kind of antioxidant 1076 of the present invention; It comprises addition still 1, ester interchange vessel 2 and still kettle 3; Between said addition still 1 and ester interchange vessel 2, be provided with first separating centrifuge 4, between said ester interchange vessel 2 and still kettle 3, be provided with second separating centrifuge 5, the order of connection is addition still 1, first separating centrifuge 4, ester interchange vessel 2, second separating centrifuge 5 and still kettle 3; Said second separating centrifuge 5 links to each other with Minton dryer 6; Said still kettle 3 links to each other with condensing surface 7.One-piece construction of the present invention is simple, and is simple to operate between each reaction kettle, reduced labour intensity, improved working efficiency, improved product gas purity and utilization ratio simultaneously.
The present invention does not relate to all identical with the prior art prior art that maybe can adopt of part and realizes.
Claims (3)
1. the production system of an antioxidant 1076; It is characterized in that: it comprises addition still (1), ester interchange vessel (2) and still kettle (3); Between said addition still (1) and ester interchange vessel (2), be provided with first separating centrifuge (4); Between said ester interchange vessel (2) and still kettle (3), be provided with second separating centrifuge (5), the order of connection is addition still (1), first separating centrifuge (4), ester interchange vessel (2), second separating centrifuge (5) and still kettle (3).
2. the production system of antioxidant 1076 according to claim 1, it is characterized in that: said second separating centrifuge (5) links to each other with Minton dryer (6).
3. the production system of antioxidant 1076 according to claim 1, it is characterized in that: said still kettle (3) links to each other with condensing surface (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100839173A CN102690200A (en) | 2012-03-27 | 2012-03-27 | Antioxidant 1076 production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100839173A CN102690200A (en) | 2012-03-27 | 2012-03-27 | Antioxidant 1076 production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102690200A true CN102690200A (en) | 2012-09-26 |
Family
ID=46855955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100839173A Pending CN102690200A (en) | 2012-03-27 | 2012-03-27 | Antioxidant 1076 production system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102690200A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1733691A (en) * | 2004-08-12 | 2006-02-15 | 天津市晨光化工有限公司 | Industrial synthesis method of 3,5-di tertiary butyl-4-hydroxyl phenyl methyl propionate |
| CN1733692A (en) * | 2004-08-12 | 2006-02-15 | 天津市晨光化工有限公司 | Two-step industrial synthesis method of beta-(3,5-di tertiary butyl-4-hydroxyl phenyl )octadecyl propionate |
| CN101215235A (en) * | 2007-12-27 | 2008-07-09 | 上海金海雅宝精细化工有限公司 | Method for synthesizing hindered phenol antioxidants |
-
2012
- 2012-03-27 CN CN2012100839173A patent/CN102690200A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1733691A (en) * | 2004-08-12 | 2006-02-15 | 天津市晨光化工有限公司 | Industrial synthesis method of 3,5-di tertiary butyl-4-hydroxyl phenyl methyl propionate |
| CN1733692A (en) * | 2004-08-12 | 2006-02-15 | 天津市晨光化工有限公司 | Two-step industrial synthesis method of beta-(3,5-di tertiary butyl-4-hydroxyl phenyl )octadecyl propionate |
| CN101215235A (en) * | 2007-12-27 | 2008-07-09 | 上海金海雅宝精细化工有限公司 | Method for synthesizing hindered phenol antioxidants |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120926 |