CN104194637A - Method for preparing disproportionated rosin with high softening point - Google Patents
Method for preparing disproportionated rosin with high softening point Download PDFInfo
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- CN104194637A CN104194637A CN201410358195.7A CN201410358195A CN104194637A CN 104194637 A CN104194637 A CN 104194637A CN 201410358195 A CN201410358195 A CN 201410358195A CN 104194637 A CN104194637 A CN 104194637A
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- rosin
- softening point
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- weight part
- disproportionated rosin
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Abstract
The invention discloses a method for preparing disproportionated rosin with a high softening point, belonging to the technical field of deep processing of rosin. The method comprises the following steps: adding rosin and fumaric acid into a reaction kettle, raising the temperature to be 200 to 220 DEG C, preserving the temperature and stirring for 1-2 hours, subsequently adding a palladium carbon catalyst, heating to be 270-290 DEG C, continuously stirring for 3-5 hours, cooling, filtering, and discharging. Due to addition of a small amount of fumaric acid as a reaction aid, the softening point of disproportionated rosin is effectively increased, a disproportionated rosin product of which the softening point is higher than 85 DEG C can be synthesized, and the requirements of the market on such products can be met.
Description
Technical field
The invention belongs to rosin deep process technology field, relate in particular to a kind of preparation method of high softening-point nilox resin.
Background technology
Nilox resin is often made potash soap, as styrene-butadiene rubber(SBR), chloroprene rubber, and butadiene-acrylonitrile rubber and latex thereof, the emulsifying agent of the high molecular polymerizations such as ABS, to improve rubber performance; Also, in a large number for the manufacture of the agent of water-soluble pressure-sensitive gluing, also can be used as ingredient, softening agent, the cakingagent of rubber components; The viscosity increaser of sizing agent etc.; Also be the important source material of manufacturing chewing gum, senior paper size, printing-ink etc.
Wherein, when the production process of nilox resin for coating, sizing agent, require its softening temperature must be greater than 85 ℃, yet according to the production technology of existing nilox resin, rosin is added to the direct isomery of palladium-carbon catalyst and become nilox resin, the softening temperature of the nilox resin obtaining, at 75 ℃～82 ℃, cannot meet above-mentioned requirements.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of preparation method of high softening-point nilox resin, and the method has solved the low problem of nilox resin softening temperature that existing production technology makes.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of preparation method of high softening-point nilox resin is:
A, the fumaric acid of the rosin of 0.8 weight part～1.0 weight part and 0.02 weight part～0.03 weight part is added to reactor, be warming up to 200 ℃～220 ℃, insulated and stirred 1 hour～2 hours;
B, after A step, the palladium-carbon catalyst to adding 0.0008 weight part～0.001 weight part in described reactor, is warming up to 270 ℃～290 ℃, continue to stir 3 hours～5 hours, after cold filtration, discharging.
Owing to adopting technique scheme, the beneficial effect that the present invention obtains is:
The present invention is reaction promoter by adding a small amount of fumaric acid, effectively raises the softening temperature of nilox resin, can synthesize the nilox resin product that softening temperature is greater than 85 ℃, to meet the demand of market to this series products.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described, and protection scope of the present invention is not only confined to following examples.
Embodiment 1
The preparation method of this high softening-point nilox resin is:
0.8kg rosin and 0.02kg fumaric acid are added to reactor, be warming up to 200 ℃, insulated and stirred 1 hour; Then add 0.0008kg palladium-carbon catalyst, be warming up to 270 ℃, continue to stir 3 hours, be then cooled to 30 ℃, filter discharging.
The softening temperature of the high softening-point nilox resin that the present embodiment makes is 85 ℃.
Embodiment 2
The preparation method of this high softening-point nilox resin is:
The fumaric acid of the rosin of 0.9kg and 0.025kg is added to reactor, be warming up to 210 ℃, insulated and stirred 1.5 hours; Then the palladium-carbon catalyst that adds 0.0009kg, is warming up to 280 ℃, continues to stir 4 hours, is then cooled to 35 ℃, filters discharging.
The softening temperature of the high softening-point nilox resin that the present embodiment makes is 87 ℃.
Embodiment 3
The fumaric acid of the rosin of 1.0kg and 0.03kg is added to reactor, be warming up to 220 ℃, insulated and stirred 2 hours; Then the palladium-carbon catalyst that adds 0.001kg, is warming up to 290 ℃, continues to stir 5 hours, is then cooled to 40 ℃, filters discharging.
The softening temperature of the high softening-point nilox resin that the present embodiment makes is 85 ℃.
Claims (1)
1. a preparation method for high softening-point nilox resin, is characterized in that comprising the following steps:
A, the fumaric acid of the rosin of 0.8 weight part～1.0 weight part and 0.02 weight part～0.03 weight part is added to reactor, be warming up to 200 ℃～220 ℃, insulated and stirred 1 hour～2 hours;
B, after A step, the palladium-carbon catalyst to adding 0.0008 weight part～0.001 weight part in described reactor, is warming up to 270 ℃～290 ℃, continue to stir 3 hours～5 hours, after cold filtration, discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410358195.7A CN104194637A (en) | 2014-07-25 | 2014-07-25 | Method for preparing disproportionated rosin with high softening point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410358195.7A CN104194637A (en) | 2014-07-25 | 2014-07-25 | Method for preparing disproportionated rosin with high softening point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104194637A true CN104194637A (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410358195.7A Pending CN104194637A (en) | 2014-07-25 | 2014-07-25 | Method for preparing disproportionated rosin with high softening point |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105062368A (en) * | 2015-07-31 | 2015-11-18 | 梧州市嘉盈树胶有限公司 | Preparation method of high softening point rosin |
| CN106590472A (en) * | 2016-12-08 | 2017-04-26 | 桂林森泰林化技术有限公司 | Preparation method of hydrogenated rosin imitated resin type novel hot melt adhesive |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1672787A (en) * | 2005-01-07 | 2005-09-28 | 贵研铂业股份有限公司 | Rosin-disproportionating high activity Pd/C catalyst preparing process |
| CN101818027A (en) * | 2010-04-20 | 2010-09-01 | 广西梧州松脂股份有限公司 | Method for preparing high-softening-point rosin glyceride from fumaric acid |
-
2014
- 2014-07-25 CN CN201410358195.7A patent/CN104194637A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1672787A (en) * | 2005-01-07 | 2005-09-28 | 贵研铂业股份有限公司 | Rosin-disproportionating high activity Pd/C catalyst preparing process |
| CN101818027A (en) * | 2010-04-20 | 2010-09-01 | 广西梧州松脂股份有限公司 | Method for preparing high-softening-point rosin glyceride from fumaric acid |
Non-Patent Citations (1)
| Title |
|---|
| 耿世铭等: ""改性富马松香的研究与应用"", 《精细化工》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105062368A (en) * | 2015-07-31 | 2015-11-18 | 梧州市嘉盈树胶有限公司 | Preparation method of high softening point rosin |
| CN106590472A (en) * | 2016-12-08 | 2017-04-26 | 桂林森泰林化技术有限公司 | Preparation method of hydrogenated rosin imitated resin type novel hot melt adhesive |
| CN106590472B (en) * | 2016-12-08 | 2018-06-29 | 桂林森泰林化技术有限公司 | A kind of preparation method of imitative hydrogenated rosin resin hot melt adhesive |
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Application publication date: 20141210 |