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Method for preparing petroleum resin in microreactor

A petroleum resin and microreactor technology, which is applied in the field of petroleum resin preparation in microreactors, can solve the problems of heat transfer in polymerization reaction, limit product synthesis rate and quality, affect product color and quality, and achieve reaction heat conduction Rapid, reduced space and energy consumption, and flexible operation

Active Publication Date: 2016-05-04
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of catalytic polymerization, the C9 fraction is easy to accumulate locally, and a large amount of heat is released during polymerization, resulting in black spots and coking, which seriously limits the reaction temperature range and affects the color and quality of the product.
Traditional reactors cannot solve the problem of heat transfer in the early stage of polymerization, which limits the synthesis rate and quality of products

Method used

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  • Method for preparing petroleum resin in microreactor

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Microreactor provided by the invention, please refer to figure 1 , including a micro-reaction flow channel 1, the micro-reaction flow channel 1 is 1-15m long and has a cross-sectional area of ​​0.01-0.80mm 2 One end of the micro-reaction channel 1 is connected to the micro-reaction channel 2, and the micro-reaction channel 2 is connected to three parallel-set single-channel micro-injection pump A 3a, single-channel micro-injection pump B 3b, single-channel micro-injection pump C 3c, and micro-injection pump C 3c. The other end of the reaction channel 1 is connected to a single-screw extruder 4; the diameter of the screw of the single-screw extruder 4 is 90-300 mm.

[0023] The micro-reaction channel 1 is arranged in a wave shape, which reduces the occupied area, increases the reaction time of materials, and improves the product yield. For the convenience of heating, the micro-reaction flow channel 1 is placed in the constant temperature incubator 5, and the volume of t...

Embodiment 2

[0025] The method for preparing petroleum resin in a kind of microreactor provided by the present invention adopts the microreactor provided by embodiment 1, and concrete method is as follows:

[0026] 1) The heavy fraction of ethylene cracking by-product C9 is separated by rectification to separate the resin liquid fraction A with a distillation range of 130-150°C and the resin liquid fraction B with a distillation range of 150°C-170°C at a flow rate of 10ml / h. Channel micro-injection pump A and micro-injection pump B enter into micro-reaction channel 2;

[0027] 2) At the same time, the solution C containing the catalyst enters into the micro-reaction channel 2 through the micro-injection pump C at a flow rate of 10ml / h; the solution C is supplied by BF 3 : AlCl 3 : Toluene is mixed according to the mass ratio of 0.5:1.5:100;

[0028] 3) After being fully mixed in the micro-reaction channel 2, flow into the micro-reaction channel 1, and carry out a catalytic polymerization...

Embodiment 3

[0033] The method for preparing petroleum resin in a kind of microreactor provided by the present invention adopts the microreactor provided by embodiment 1, and concrete method is as follows:

[0034] 1) The heavy fraction of ethylene cracking by-product C9 is separated by rectification to separate the resin liquid fraction A with a distillation range of 130-150°C and the resin liquid fraction B with a distillation range of 170°C-190°C at a flow rate of 8ml / h, respectively through single Channel micro-injection pump A and micro-injection pump B enter into micro-reaction channel 2;

[0035] 2) At the same time, the solution C containing the catalyst enters into the micro-reaction channel 2 through the micro-injection pump C at a flow rate of 15ml / h; the solution C is supplied by BF 3 : AlCl 3 : Toluene is mixed according to the mass ratio of 1:1.5:100;

[0036] 3) After being fully mixed in the micro-reaction channel 2, flow into the micro-reaction channel 1, and carry out a...

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Abstract

The invention discloses a method for preparing petroleum resin in a microreactor and provides a method for preparing petroleum resin. The method can effectively transmit heat generated in an earlier polymerization stage and can prevent blockage caused by the excessively-large viscosity of a product. The method comprises the steps that 1, a first resin liquid distillation cut with the distillation range being 110-150 DEG C and a second resin liquid distillation cut with the distillation range being 150-190 DEG C enter a micro-reaction channel through a first one-way micro-injection pump and a second one-way micro-injection pump at the flow speed of 2-20 ml / h, a third solution containing a catalyst enters the micro-reaction channel through a third one-way micro-injection pump at the flow speed of 5-40 ml / h, and a first-stage polymerization reaction is performed for 2-10 min at the temperature of 40-130 DEG C; 2, materials enter a single-screw extruder after being subjected to a reaction through the micro-reaction channel, and a two-stage polymerization reaction is performed for 3-5 min at the temperature of 40-130 DEG C; 3, products flow out from a product discharge outlet through single-screw extrusion, alternate alkali washing and water scrubbing are performed to remove the catalyst, flash evaporation is performed to remove the solvent, and cooling and granulation are performed to obtain the petroleum resin.

Description

technical field [0001] The invention relates to a method for preparing petroleum resin, specifically, a method for preparing petroleum resin in a microreactor. Background technique [0002] C9 aromatic petroleum resin is a kind of thermoplastic resin produced by pretreatment, polymerization, distillation and other processes of C9 fraction. Because C9 petroleum resin does not contain polar groups in its structure, it has good water resistance, acid and alkali resistance, weather resistance and light aging resistance, good solubility in organic solvents, and good compatibility with other resins. It is brittle, viscosifying, cohesive and plastic. Mainly used in coatings, rubber additives, paper additives, inks and adhesives and other fields. In the C9 fraction, styrene, dicyclopentadiene, and indene resins are the three main components of the polymerization reaction. In the early stage of the polymerization reaction, the materials are polymerized into small molecular polymers...

Claims

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Application Information

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IPC IPC(8): C08F240/00C08F2/01
CPCC08F2/01C08F240/00
Inventor 孙大雷叶嘉辉蔡晓兰方岩雄郑育英谭伟阚一群
Owner GUANGDONG UNIV OF TECH
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