CN107573851A - The processing method of abalyn - Google Patents
The processing method of abalyn Download PDFInfo
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- CN107573851A CN107573851A CN201710843345.7A CN201710843345A CN107573851A CN 107573851 A CN107573851 A CN 107573851A CN 201710843345 A CN201710843345 A CN 201710843345A CN 107573851 A CN107573851 A CN 107573851A
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- Prior art keywords
- abalyn
- rosin
- processing method
- aluminum oxide
- neodymia
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- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a kind of processing method of abalyn, it is related to rosin deep process technology field, the present invention is first by rosin refining, then in aluminum oxide, in the presence of the composite catalyst that dibutyltin dilaurate and neodymia are formed, carry out esterification, reaction time is short, and it need not be protected in course of reaction using inert gas, the color of prepared abalyn is less than 0.8 Ghana color number, initial bonding strength and persistence are very good, still good chemical stability can be kept to can be widely applied to adhesive under hot environment and pole low temperature condition, scaling powder, surfactant, the industries such as coating.
Description
Technical field
The present invention relates to rosin deep process technology field, especially a kind of processing method of abalyn.
Background technology
Rosin is the big valuable natural forest resourceies in China one, and China produces rosin per year and occupied first place in the world.Rosin is sexual crisp, easy
Crystallization, it is not ageing-resistant, acid number is high the features such as, need to generally be used after chemical modification, be esterified, hydrogenate, being disproportionated, dehydrogenation etc. is pine
The modified conventional means of perfume.After rosin esterification, not only reduce acid number, improve heat endurance, and enhance rosin it is acidproof,
Alkaline-resisting ability, its application field has been widened significantly.
The liquid resin that abalyn is hydrogenated rosin, rosin forms through methanol esterification.Applied to adhesive, scaling powder,
Surfactant, coating etc..Different from general carboxylic acid, the carboxyl of rosin is located on tertiary carbon atom, and steric hindrance is very big, rosin
Higher with methanol esterification reaction activity, enzymatic synthesis condition is very harsh, it is necessary to can be reacted at a high temperature of more than 200 DEG C thorough
Bottom, but high temperature esterification make it that the color of esterification products is deeper.
The content of the invention
It is an object of the invention to provide a kind of processing method of abalyn, the processing method of this abalyn can solve
The problem of certainly abalyn color is deeper.
In order to solve the above problems, the technical solution adopted by the present invention is：
The processing method of this abalyn comprises the following steps：
A, rosin is added in vacuum distillation plant, opens vacuum distillation plant, be evacuated to the pa of 50 pas~150, heat temperature raising
To 205 DEG C~220 DEG C, insulation distillation 0.5 hour~1 hour, resin is obtained；
B, after step A terminates, methanol is added, stirs, adds composite catalyst, be warming up to 250~270 DEG C, esterification
Reaction 2 hours~3 hours；Wherein described composite catalyst is that weight ratio is 1~2.5：0.6~1.8：1~4 aluminum oxide, two
Butyl tin dilaurate and neodymia mix；The mass ratio of methanol and resin is 1：0.3~0.8；
C, after step B terminates, be transferred in vacuum distillation plant, be decompressed to vacuum for 0.3~1.5KPa distill 20 minutes~
45 minutes, obtain abalyn.
In above-mentioned technical proposal, more specifically technical scheme can also be：Aluminum oxide, dibutyltin dilaurate and oxygen
The weight ratio for changing neodymium is 1.8：1.2：3.
By adopting the above-described technical solution, the present invention has the advantages that compared with prior art：
Then the present invention compound urging first by rosin refining what aluminum oxide, dibutyltin dilaurate and neodymia were formed
In the presence of agent, esterification is carried out, the reaction time is short, and need not be protected in course of reaction using inert gas,
The color of prepared abalyn is less than 0.8 Ghana color number, and initial bonding strength and persistence are very good, hot environment and extremely low temperature
In the case of still can keep good chemical stability can be widely applied to adhesive, scaling powder, surfactant, coating etc. row
Industry.
Embodiment
With reference to embodiment, the invention will be further described：
Embodiment 1
The processing method of the present embodiment abalyn comprises the following steps：Rosin is added in vacuum distillation plant, opens vacuum
Distilling apparatus, 50 pas are evacuated to, are heated to 209 DEG C~220 DEG C, insulation distillation 0.75 hour, obtain resin；Add
Enter methanol, stir, add composite catalyst, be warming up to 250~270 DEG C, esterification 2 hours；It is wherein described compound
Catalyst is that weight ratio is 2：0.6：2 aluminum oxide, dibutyltin dilaurate and neodymia mixes；Methanol and refined
The mass ratio of rosin is 1：0.3；It is transferred in vacuum distillation plant, is decompressed to vacuum and is distilled 20 minutes for 1KPa, obtain pine
Fragrant methyl esters.
The color of the abalyn prepared according to the present embodiment method is Ghana color number 0., and acid number is 2 .1mg/g, is glued
Degree（25℃）For 3200mp.s.
Embodiment 2
The processing method of the present embodiment abalyn comprises the following steps：Rosin is added in vacuum distillation plant, opens vacuum
Distilling apparatus, 150 pas are evacuated to, are heated to 205 DEG C~212 DEG C, insulation distillation 1 hour, obtain resin；Add
Methanol, stir, add composite catalyst, be warming up to 250~270 DEG C, esterification 3 hours；It is wherein described compound to urge
Agent is that weight ratio is 1.8：1.2：3 aluminum oxide, dibutyltin dilaurate and neodymia mixes；Methanol and refined
The mass ratio of rosin is 1：0.5；It is transferred in vacuum distillation plant, is decompressed to vacuum and is distilled 45 minutes for 1.5KPa, obtained
Abalyn.
The color of the abalyn prepared according to the present embodiment method is Ghana color number No. 0.3, acid number 2.8mg/g,
Viscosity（25℃）For 3100mp.s.
Embodiment 3
The processing method of the present embodiment abalyn comprises the following steps：Rosin is added in vacuum distillation plant, opens vacuum
Distilling apparatus, 95 pas are evacuated to, are heated to 211 DEG C~218 DEG C, insulation distillation 0.5 hour, obtain resin；Add
Enter methanol, stir, add composite catalyst, be warming up to 250~270 DEG C, esterification 2.5 hours；It is wherein described multiple
It is that weight ratio is 1 to close catalyst：1.2：1 aluminum oxide, dibutyltin dilaurate and neodymia mixes；Methanol and essence
The mass ratio of rosin processed is 1：0.8；It is transferred in vacuum distillation plant, is decompressed to vacuum and is distilled 30 minutes for 0.3KPa, obtained
To abalyn.
The color of the abalyn prepared according to the present embodiment method is Ghana color number 0.5, and acid number is 2 .7mg/g,
Viscosity（25℃）For 3330mp.s.
Claims (2)
1. a kind of processing method of abalyn, it is characterised in that comprise the following steps：
A, rosin is added in vacuum distillation plant, opens vacuum distillation plant, be evacuated to the pa of 50 pas~150, heat temperature raising
To 205 DEG C~220 DEG C, insulation distillation 0.5 hour~1 hour, resin is obtained；
B, after step A terminates, methanol is added, stirs, adds composite catalyst, be warming up to 250~270 DEG C, esterification
Reaction 2 hours~3 hours；Wherein described composite catalyst is that weight ratio is 1~2.5：0.6~1.8：1~4 aluminum oxide, two
Butyl tin dilaurate and neodymia mix；The mass ratio of methanol and resin is 1：0.3~0.8；
C, after step B terminates, be transferred in vacuum distillation plant, be decompressed to vacuum for 0.3~1.5KPa distill 20 minutes~
45 minutes, obtain abalyn.
2. the processing method of abalyn according to claim 1, it is characterised in that aluminum oxide, dibutyltindilaurylmercaptide cinnamic acid
The weight of ester and neodymia ratio is 1.8：1.2：3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710843345.7A CN107573851A (en) | 2017-09-18 | 2017-09-18 | The processing method of abalyn |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710843345.7A CN107573851A (en) | 2017-09-18 | 2017-09-18 | The processing method of abalyn |
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| CN107573851A true CN107573851A (en) | 2018-01-12 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772829A (en) * | 2005-10-28 | 2006-05-17 | 中国林业科学研究院林产化学工业研究所 | High stability color-less rosin pentaerythrite ester and its prepn |
| CN103627326A (en) * | 2013-11-28 | 2014-03-12 | 普洱科茂林化有限公司 | Preparation method of rosin ester |
| CN104694015A (en) * | 2015-03-18 | 2015-06-10 | 桂林兴松林化有限责任公司 | Preparation method of light-color glycerol ester of rosin |
| CN105907312A (en) * | 2016-05-25 | 2016-08-31 | 广西梧州日成林产化工股份有限公司 | Preparation method of pale rosin methyl ester |
-
2017
- 2017-09-18 CN CN201710843345.7A patent/CN107573851A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772829A (en) * | 2005-10-28 | 2006-05-17 | 中国林业科学研究院林产化学工业研究所 | High stability color-less rosin pentaerythrite ester and its prepn |
| CN103627326A (en) * | 2013-11-28 | 2014-03-12 | 普洱科茂林化有限公司 | Preparation method of rosin ester |
| CN104694015A (en) * | 2015-03-18 | 2015-06-10 | 桂林兴松林化有限责任公司 | Preparation method of light-color glycerol ester of rosin |
| CN105907312A (en) * | 2016-05-25 | 2016-08-31 | 广西梧州日成林产化工股份有限公司 | Preparation method of pale rosin methyl ester |
Non-Patent Citations (2)
| Title |
|---|
| 丁磊: "《最新塑料助剂品种优化选择与性能分析检测标准及应用工艺实用手册 第1卷》", 31 October 2004, 银声音像出版社 * |
| 叶彦春等: "《有机化学实验》", 28 February 2014, 北京理工大学出版社 * |
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Application publication date: 20180112 |