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Hydrogenation device and method for continuous hydrogenation on conjugated diene polymer by applying same

A conjugated diene and hydrogenation reaction technology is applied to a hydrogenation reaction device and the hydrogenation field where the device is applied, and can solve the problems of the failure of the hydrogenation catalyst, the temperature rise, and the reduction of the hydrogenation rate of the conjugated diene polymer.

Inactive Publication Date: 2010-09-01
CHI MEI CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, the hydrogenation reaction of olefinic double bonds using the above-mentioned hydrogenation catalyst, since the hydrogenation reaction of conjugated diene polymer is an exothermic reaction, after the reaction lasts for a period of time, the reaction environment will be caused by the acceleration of hydrogenation rate and the increase of heat release. The temperature rises rapidly, so that the hydrogenation catalyst in it cannot continue to operate normally due to high temperature deactivation, shortening the time that the hydrogenation catalyst can act, thereby reducing the hydrogenation rate of the final conjugated diene polymer
It can be seen that although the above-mentioned hydrogenation catalyst can accelerate the hydrogenation rate of the conjugated diene polymer, it will also cause the hydrogenation catalyst to fail early due to high temperature. Hydrogenation reaction device and method capable of increasing hydrogenation rate without affecting hydrogenation catalyst life

Method used

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  • Hydrogenation device and method for continuous hydrogenation on conjugated diene polymer by applying same
  • Hydrogenation device and method for continuous hydrogenation on conjugated diene polymer by applying same
  • Hydrogenation device and method for continuous hydrogenation on conjugated diene polymer by applying same

Examples

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Embodiment 1

[0096] Example 1: Continuous Hydrogenation of Conjugated Diene-Based Polymers

[0097] The conjugated diene polymer SBS-1 is 0.246g / hr (0.71 millimole / hr), 1.05g / hr, 0.57g / hr feed amount, and cooperate solvent cyclohexane to import such as figure 1 Form a reaction mortar (solid content 15% by weight) after stirring and mixing in the shown mixing tank 21; Above-mentioned reaction mortar is imported such as figure 1 In the hydrogenation reaction device, and each hydrogenation reactor of the hydrogenation reaction device is built in such as image 3 several packing pieces, and simultaneously introduce hydrogen into the hydrogenation reactors numbered A, C, E (as described later), so that the hydrogen inlet pressure in each hydrogenation reactor is maintained at 9kg / cm 2 g, and by controlling the interlayer water temperature and heat exchangers 12, 12' of each hydrogenation reactor 11, 11' (numbered A, B, C, D, E and F from upflow to downflow) to remove Heat, so that the averag...

Embodiment 2～4

[0099] Embodiments 2 to 4 carry out the hydrogenation reaction with the same hydrogenation reaction device and steps as in Embodiment 1. The difference is that the embodiments 2 to 4 use the conjugated diene polymer SBS- 1 or conjugated diene polymer SBS-2, and dicyclopentadienyl titanium dichloride, polymethylhydrogensiloxane and n-butyl lithium in different feed amounts, and different hydrogenation conditions to obtain hydrogenated Table 1 also lists the conjugated diene polymer and the hydrogenation rate of the hydrogenated conjugated diene polymer obtained therefrom.

[0100]From the results of the above examples, it is known that when the continuous hydrogenation reactor of the present invention is used to hydrogenate a conjugated diene polymer, the filler 5 in the hydrogenation reactor 11, 11' can slow down the downward flow of the polymer. The rate and then prolong the reaction time, so that the hydrogenation reaction of the polymer with hydrogen and the hydrogenation c...

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Abstract

The invention provides a hydrogenation device and a method for continuous hydrogenation on conjugated diene polymer by applying the device. The hydrogenation device is used for mixing and merging a conjugated diene polymer, a hydrogenation catalyst and hydrogen to carry out hydrogenation, the hydrogenation device comprises at least one hydrogenation unit, each hydrogenation unit comprises at least one hydrogenation reactor provided with a discharging hole and at least one heat exchanger; wherein the hydrogenation unit is used for mixing the conjugated diene polymer, the hydrogenation catalyst and hydrogen in non mechanic mixing manner and carrying out hydrogenation; and the heat exchanger is connected with the discharging hole of at least one hydrogenation reactor.

Description

[0001] This application is a divisional application of application number 200810083033.1 technical field [0002] The invention relates to a hydrogenation reaction device and a hydrogenation method using the device, in particular to a hydrogenation reaction device and method for continuous hydrogenation of conjugated diene polymers. Background technique [0003] Industrially, the use of conjugated diene monomers such as butadiene and isoprene for polymerization or copolymerization to prepare synthetic rubber has been widely used for commercial production, but due to the unsaturated bis The bond is easily oxidized, which in turn leads to the disadvantage of insufficient thermal stability and weathering stability of the polymer under high temperature or weathering test. [0004] In order to improve the shortcoming that the conjugated diene polymer containing unsaturated double bonds is easily oxidized, resulting in insufficient thermal stability and weather resistance stabilit...

Claims

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Application Information

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IPC IPC(8): C08F36/04C08F8/04
Inventor 郑贵伦黄辰宝
Owner CHI MEI CORP
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