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Production method of terpene resin

A production method, terpene resin technology, applied in the chemical industry, climate sustainability, sustainable manufacturing/processing, etc., can solve the problems of low conversion rate of raw materials, long reaction time, etc., and achieve high product purity and simple preparation method , the effect of high conversion rate

Inactive Publication Date: 2016-10-12
GUANGXI ZHONGCHANG RESIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention is to provide a kind of production method of terpene resin, this method can solve the problem that reaction time is long and raw material conversion rate is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The production method of the terpene resin in this embodiment is as follows: add turpentine, toluene and molecular sieve catalyst into the vortex cavitation device in sequence, adjust the pressure of the vortex cavitation device to 0.2 MPa during operation, and adjust to the first temperature and the second temperature in turn 3. Carry out polymerization reaction at the third temperature, remove the catalyst by filtration, and recover toluene by distillation; wherein, the mass ratio of turpentine, toluene and molecular sieve catalyst is 1:2:0.005; the first reaction temperature is 10°C, and the reaction at the first reaction temperature The time is 8 minutes, the second reaction temperature is 12° C., the reaction time at the second reaction temperature is 5 minutes, the third reaction temperature is 20° C., and the reaction time at the third reaction temperature is 15 minutes.

[0018] The preparation method of the molecular sieve in this example is as follows: accordin...

Embodiment 2

[0020] The production method of the terpene resin in this embodiment is as follows: add turpentine, toluene and molecular sieve catalyst into the vortex cavitation device in sequence, adjust the pressure of the vortex cavitation device to 0.2 MPa during operation, and adjust to the first temperature and the second temperature in turn , Carry out polymerization reaction at the third temperature, remove the catalyst by filtration, and recover toluene by distillation; wherein, the mass ratio of turpentine, toluene and molecular sieve catalyst is 1:2.5:0.003; the first reaction temperature is 11°C, and the reaction at the first reaction temperature The time is 10 minutes, the second reaction temperature is 20° C., the reaction time at the second reaction temperature is 6 minutes, the third reaction temperature is 22° C., and the reaction time at the third reaction temperature is 10 minutes.

[0021] The preparation method of the molecular sieve in this example is as follows: accord...

Embodiment 3

[0023] The production method of the terpene resin in this embodiment is as follows: add turpentine, toluene and molecular sieve catalyst into the vortex cavitation device in sequence, adjust the pressure of the vortex cavitation device to 0.25 MPa during operation, and adjust to the first temperature and the second temperature in turn 3. Carry out polymerization reaction at the third temperature, remove the catalyst by filtration, and recover toluene by distillation; wherein, the mass ratio of turpentine, toluene and molecular sieve catalyst is 1:3:0.002; the first reaction temperature is 12°C, and the reaction at the first reaction temperature The time is 5 minutes, the second reaction temperature is 16° C., the reaction time at the second reaction temperature is 8 minutes, the third reaction temperature is 25° C., and the reaction time at the third reaction temperature is 8 minutes.

[0024] The preparation method of the molecular sieve in this example is as follows: accordin...

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Abstract

The invention discloses a production method of terpene resin. The production method comprises the following steps: turpentine oil, toluene and a catalyst are added to a swirling cavitation device sequentially, and are sequentially regulated to be at a first temperature, a second temperature and a third temperature for polymerization, the catalyst is removed through filtration, and toluene is recovered through distillation, wherein the mass ratio of the turpentine oil to toluene to the catalyst is 1:(2-3):(0.002-0.005), the first temperature is 10-12 DEG C, the reaction is performed for 5-10 min at the first temperature, the second temperature is 12-20 DEG C, the reaction is performed for 5-8 min at the second temperature, the third temperature is 20-25 DEG C, and the reaction is performed for 8-15 min at the third temperature. The preparation method of the catalyst is simple, the catalysis efficiency is high, the reaction is finished faster with adoption of the swirling cavitation device through gradient elevation of temperature, and the feed stock conversion rate is high.

Description

technical field [0001] The invention relates to the technical field of chemical resins, in particular to a production method of terpene resins. Background technique [0002] Terpene resin is a polymer obtained by cationic catalytic polymerization of pinene as raw material. Terpene resin has excellent physical properties such as non-toxic, hydrophobic, non-crystallization, electrical insulation, strong adhesion, etc. and chemical properties such as acid and alkali resistance, anti-aging, etc. It is easily soluble in aromatic hydrocarbons and vegetable oils, and is an excellent tackifier. It is widely used in rubber, plastic, ink, coating, textile, adhesive, pressure-sensitive adhesive, cable, paint, packaging, anti-rust oil, food industry and other fields. [0003] At present, the preparation method of terpene resin is to catalyze polymerization of turpentine, α-pinene, and β-pinene to obtain terpene resin by using heteropolyacid or metal oxide as a catalyst. Due to the unsa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F232/08C08F4/18C08F2/01
CPCC08F2/01C08F4/18C08F232/08Y02P20/10
Inventor 黄桂彬蒋茵荣
Owner GUANGXI ZHONGCHANG RESIN
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