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A method for reducing the color number of cyclopentadiene petroleum resin

A technology of petroleum resin and cyclopentadiene, which is applied in the field of reducing the color number of cyclopentadiene petroleum resin, can solve the problems of high price, low benefit, and low product color number, and achieve simple process, low investment and good benefit Effect

Active Publication Date: 2018-06-22
沈阳 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are two main methods of synthesizing cyclopentadiene petroleum resin, one is low temperature method, the temperature generally does not exceed 80 ℃, using aluminum trichloride, boron trifluoride, etc. The products below No. 10 can meet the demand of high-end market. The disadvantages are that the process is complicated, the catalyst is inconvenient to use, it is easy to block the pipeline, and the price is expensive. , the temperature is generally 200-300 ° C, with or without catalyst, the advantage is that the process is simple, the environmental protection pressure is small, the disadvantage is that generally only products above No. 10 can be produced, which cannot meet the high-end market demand, and the benefit is low

Method used

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  • A method for reducing the color number of cyclopentadiene petroleum resin
  • A method for reducing the color number of cyclopentadiene petroleum resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] 1. Take 3g of composite catalyst, 80g of solvent, and 1000g of C5 into the reaction device, and stir for 20 minutes; the catalyst is composed of azobisisobutyronitrile, dicumyl peroxide, 2,5-dimethyl-2,5 -Bis(tert-butylperoxy)hexane, tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol, tris[2,4-di-tert-butylphenyl ] Phosphite, β-(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, calcium stearate, zinc stearate by mass ratio 1:2:1: 0.5:1:0.5:0.3:0.2 mixed.

[0016] 2. Keep stirring, pass the inert gas for 10 minutes, seal the reaction device, and keep the inert gas pressure of 0.1MPa.

[0017] 3. React at 180°C for 10 hours, then cool down to 60°C.

[0018] 4. Distill the reaction materials to remove the solvent and oligomers, and the bottom of the kettle is the product.

[0019] 5. Analyze product data, mainly for color number and softening point.

Embodiment 2

[0021] Same as Example 1, the difference is that the reaction temperature is 200°C as shown in Table 1.

Embodiment 3

[0023] Same as Example 1, the difference is that the reaction temperature is 220°C as shown in Table 1.

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Abstract

The invention discloses a method for reducing the color number of cyclopentadiene petroleum resin. A C5 olefin fraction is taken as a raw material and added to a high-pressure reactor together with a solvent and a catalyst, inert gas in fed to remove air, proper inert gas pressure is guaranteed, and the cyclopentadiene petroleum resin is prepared at a proper reaction temperature for a proper reaction time. On the premise that the performance of high-end products is met, the process is simple, the investment is low, the catalyst is not required to be removed, wastewater containing fluoride and the like cannot be produced, and the method has the characteristics of environment friendliness, high efficiency and good benefit.

Description

technical field [0001] The invention belongs to the field of petroleum resin synthesis, and in particular relates to a method for reducing the color number of cyclopentadiene petroleum resin. Background technique [0002] There are two main methods of synthesizing cyclopentadiene petroleum resin, one is low temperature method, the temperature generally does not exceed 80 ℃, using aluminum trichloride, boron trifluoride, etc. The products below No. 10 can meet the demand of high-end market. The disadvantages are that the process is complicated, the catalyst is inconvenient to use, it is easy to block the pipeline, and the price is expensive. , the temperature is generally 200-300 ℃, with or without catalyst, the advantage is that the process is simple, the environmental protection pressure is small, the disadvantage is that generally only products above No. 10 can be produced, which cannot meet the high-end market demand, and the benefit is low. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F240/00C08F4/34C08F4/04
Inventor 沈阳王占新
Owner 沈阳
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