Reaction device and method for preparing light hydrocarbon alternating copolymerization microsphere

A reaction device and alternating copolymerization technology, which are applied in chemical instruments and methods, microsphere preparation, chemical/physical/physical-chemical stationary reactors, etc., can solve the problems of undisclosed reaction devices and reaction methods, and achieve effective requirements. , Accurately control the reaction temperature and achieve the effect of removal

Active Publication Date: 2020-05-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

against maleic anhydride and C 2-4 The self-stabilizing precipitation polymerization of unsaturated hydrocarbons obtains reaction products with specific properties, and no related reaction devices and reaction methods are disclosed in the prior art

Method used

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  • Reaction device and method for preparing light hydrocarbon alternating copolymerization microsphere
  • Reaction device and method for preparing light hydrocarbon alternating copolymerization microsphere
  • Reaction device and method for preparing light hydrocarbon alternating copolymerization microsphere

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] use as Figure 1-2 The reaction apparatus shown for the preparation of light hydrocarbon alternating copolymerization microspheres was carried out. The reaction device includes a reactor 1, a gas-liquid separator 2 and a centrifuge (not shown in the figure) connected in sequence.

[0090] The reactor 1 includes a reactor shell 101 with a circular cross section, a hollow partition 105 arranged on the inner wall of the reactor shell 101, a first material inlet 102 arranged on the reactor shell 101 , the second material inlet 104 and the material outlet 103, and the material channel 108 from the first material inlet 102 to the material outlet 103; wherein, the hollow partitions 105 are staggered on the inner wall of the reactor shell 101 There are 7, so that the material channel 108 is formed inside the reactor shell 101, and the second material inlet 104 is located at 50% of the total length of the material channel 108; the reactor 1 passes through the material The outl...

Embodiment 2

[0100] Carry out according to the method for embodiment 1, difference is:

[0101] Using mixed carbon four B instead of mixed carbon four A, the mixed carbon four B composition (weight percentage) is: 1,3-butadiene 0.06%, trans-2-butene 12.67%, isobutane 37.09%, isobutene 19.48%, cis-2-butene 27.79%, 1-butene 1.02%, other 1.89%;

[0102] Organic reaction liquid is made up of 13.5kg mixed carbon four B, 20kg maleic anhydride, 4kg dibenzoyl peroxide and 100L isoamyl acetate;

[0103]The polymerization reaction pressure is 1MPa, the polymerization reaction temperature is 80°C, the first polymerization reaction time is 2.5h, and the second polymerization reaction time is 2.5h;

[0104] The centrifugation condition is 4000rpm, 20min;

[0105] Thus, solid copolymer particle powder B was prepared.

Embodiment 3

[0107] Carry out according to the method for embodiment 1, difference is:

[0108] Use mixed carbon four C instead of mixed carbon four A, mixed carbon four C composition (percentage by weight): trans 2-butene 30.83%, cis 2-butene 18.18%, n-butane 22.29%, 1-butene 9.52% , Isobutene 14.78%, Others 4.4%.

[0109] The organic reaction solution is composed of 15kg of mixed C4C, 20kg of maleic anhydride, 4.5kg of dibenzoyl peroxide and 100L of isoamyl acetate;

[0110] The polymerization reaction pressure is 1.5MPa, the polymerization reaction temperature is 80°C, the first polymerization reaction time is 1.5h, and the second polymerization reaction time is 3h;

[0111] Thus, solid copolymer particle powder C was prepared.

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Abstract

The invention relates to the field of polymerization reaction, and discloses a reaction device and method for preparing a light hydrocarbon alternate copolymerization microsphere. The reaction devicecomprises a reactor (1) and a gas-liquid separator (2). The reactor (1) comprises a reactor shell (101); a hollow partition plate (105), which is arranged on the inner wall of the reactor shell (101);a first material leading-in opening (102), a second material leading-in opening (104) and a material leading-out opening (103), which are formed in the reactor shell (101); and a material channel (108), which extends from the first material leading-in opening (102) to the material leading-out opening (103). The second material guide-in opening (104) is located at 40-60% of the total length of thematerial channel (108). The reaction device and method can improve the conversion rate of the reaction, and control the form of the light hydrocarbon alternating copolymerization microsphere.

Description

technical field [0001] The invention relates to the field of polymerization reaction, in particular to a reaction device for preparing light hydrocarbon alternating copolymerization microspheres and a method for preparing light hydrocarbon alternating copolymerization microspheres. Background technique [0002] The production of polymers generally includes units such as raw material treatment, catalyst unit, polymerization, separation, and recycling. Among these many units, the polymerization unit is the core and important unit. The polymerization unit directly determines the operation of the polymerization reaction and the resulting polymerization. the quality of the product. [0003] Different from the reaction of small molecules, the polymerization reaction has its own particularity, such as the increase of viscosity during the reaction process, and the reaction process is accompanied by relatively strong exotherm. Generally, the polymerization reactor should meet the fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/24B01J13/14C08F222/06C08F210/10C08F210/08C08F212/36C08F210/12C08F236/06C08F2/01
CPCB01J19/0013B01J19/0053B01J19/24B01J13/14C08F222/06C08F2/01B01J2219/00085C08F210/10C08F210/08C08F212/36C08F210/12C08F236/06
Inventor 张洁刘振杰宋文波李德展陈明
Owner CHINA PETROLEUM & CHEM CORP
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