Hydrogenation catalyst for polymer containing olefinic unsaturated bond, preparation method thereof and hydrogenation reaction method

A hydrogenation catalyst and hydrogenation reaction technology, applied in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of low activity and reaction efficiency, and achieve The effects of high hydrogenation reaction efficiency, good hydrogenation selectivity, and high hydrogenation catalytic activity

Active Publication Date: 2017-02-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects of the activity and reaction efficiency of the hydrogenation catalyst used for polymers containing olefinic unsaturated bonds in the prior art, and to provide a hydrogenation catalyst for polymers containing olefinic unsaturated bonds Catalyst and its preparation method and application

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  • Hydrogenation catalyst for polymer containing olefinic unsaturated bond, preparation method thereof and hydrogenation reaction method
  • Hydrogenation catalyst for polymer containing olefinic unsaturated bond, preparation method thereof and hydrogenation reaction method
  • Hydrogenation catalyst for polymer containing olefinic unsaturated bond, preparation method thereof and hydrogenation reaction method

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preparation example Construction

[0044] The present invention also provides a preparation method of the above-mentioned hydrogenation catalyst, wherein the preparation method comprises:

[0045] First mix (a) and (b) evenly to obtain (a+b) mixed solution, then mix (c) and (a+b) mixed solution evenly, the above mixing process makes components (a), (b) and (c) undergo an aging reaction,

[0046] Among them, the mixing time of (a) and (b) is preferably 5-120 minutes, the mixing temperature is 0-100°C, the preferred mixing time is 10-60 minutes, and the mixing temperature is 20-70°C; preferably (c) and ( a+b) The mixing time of the mixture is 2-90 minutes, the mixing temperature is 0-100°C, preferably the mixing time is 5-60 minutes, and the mixing temperature is 20-70°C;

[0047] or

[0048] First mix (a) and (c) evenly to obtain (a+c) mixed solution, then mix (b) and (a+c) mixed solution evenly, the above mixing process makes components (a), (b) and (c) undergo an aging reaction,

[0049] Among them, prefer...

Embodiment 1

[0074] (1) Preparation of polymers containing olefinic unsaturated bonds

[0075] A 500L jacketed stirred reactor was fully replaced with purified nitrogen, 250L cyclohexane and hexane mixed solvent (the weight percentage of cyclohexane in the mixed solvent was 87wt%) and 3.6L refined styrene were added, and n-butyllithium and tetrahydrofuran were added (the molar ratio of tetrahydrofuran to n-butyllithium in the mixture is 36:1), react at 50-60°C for 30 minutes, continue to add 25L of refined butadiene to react for 30 minutes, and then add 3.6L of refined styrene to react After 40 minutes, isopropanol was added to terminate the reaction after the reaction was completed, and the molar ratio of isopropanol to n-butyllithium was 1:1. Here, the concentration of styrene-butadiene-styrene block copolymer (S-B-S) is about 10wt% based on the whole polymerization system, the number average molecular weight of the block copolymer is 66000, styrene and butadiene monomer The weight rati...

Embodiment 2

[0082]Polymer hydrogenation reaction was carried out according to the method of Example 1, the difference is that in step (2), Ni:Al:double bond=1:6:60. The hydrogenation reaction results are shown in Table 1.

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Abstract

The invention provides a hydrogenation catalyst for an olefine unsaturated bond containing polymer, a preparation method and a hydrogenation reaction method thereof. Specifically, the hydrogenation catalyst includes: (a) an organic metal compound containing a group VIII element and / or a complex containing a group VIII element; (b) an alkyl metal compound with a structural formula as RaM, with R being substituted / unsubstituted straight chain alkyl or substituted / unsubstituted branched chain alkyl of C2-C10, with M being a metal cation, and with a being the coordination number of an alkyl group and equal to the valence number of M; and (c) a polymer solution containing an olefin unsaturated bond. Specifically, the molar ratio of the component (a), (b) and (c) is 1:1-10:5-100, and the amount of the component (c) is calculated by the mole number of the olefin unsaturated bond contained in the polymer solution. The hydrogenation catalyst for the olefine unsaturated bond containing polymer provided by the invention has high hydrogenation catalytic activity and hydrogenation reaction efficiency, and also has very good hydrogenation selectivity.

Description

technical field [0001] The invention relates to a hydrogenation catalyst for polymers containing olefinic unsaturated bonds, a preparation method thereof and a hydrogenation reaction method. Background technique [0002] In order to improve the heat resistance, oxygen stability, aging resistance and service temperature of polymers containing olefinic unsaturated bonds, hydrogenation is often used to saturate the olefinic unsaturated bonds in the polymers. The degree of unsaturation of the olefinic unsaturated bonds in the polymer is less than 2% (that is, the degree of hydrogenation is greater than 98%), so as to achieve a significant improvement in the performance of the polymer, and at the same time expand the application field of the polymer. [0003] In the prior art, there have been many reports on the selective hydrogenation process of polymers. For example, U.S. Patent No. 3,595,942 discloses the use of the reaction product of an alkoxide of trialkylaluminum and trans...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/22B01J31/12C08F8/04C08F297/04
Inventor 贺小进李传清韩书亮王世朝石建文
Owner CHINA PETROLEUM & CHEM CORP
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