Hydrogenation device and hydrogenation method for polymer continuous hydrogenation

A hydrogenation device and polymer technology, which is applied in the field of continuous hydrogenation device for polymers containing olefinic unsaturated bonds, can solve the problems of complex control of continuous hydrogenation process, difficult control of intermittent hydrogenation temperature, and low hydrogenation efficiency , to achieve the effect of strong adaptability, improved product quality and increased yield

Active Publication Date: 2015-11-25
山东聚圣科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a hydrogenation device and hydrogenation method for continuous hydrogenation of polymers, to solve the defects of low hydrogenation efficiency caused by difficult control of batch hydrogenation temperature in the prior art and complex control of continuous hydrogenation process Defects

Method used

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  • Hydrogenation device and hydrogenation method for polymer continuous hydrogenation
  • Hydrogenation device and hydrogenation method for polymer continuous hydrogenation
  • Hydrogenation device and hydrogenation method for polymer continuous hydrogenation

Examples

Experimental program
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Effect test

Embodiment 1

[0017] See attached figure 1 and 2 , a hydrogenation device for continuous hydrogenation of polymers, a hydrogen pipeline 6 connected to the upper part of the hydrogenation kettle 1, and a polymer glue discharge pipeline 8 connected to the lower part; a jet reactor 2 is installed on the upper part of the inner cavity of the hydrogenation kettle 1, The inlet end of the jet reactor 2 is connected to the outlet end of the circulating fluid heat exchanger 7 outside the hydrogenation kettle 1 through the return line 3, and the polymer glue discharge pipeline 8 is provided with a branch and the inlet end of the circulating fluid heat exchanger 7 Connect and install the circulating pump 9 on the polymer glue discharge pipeline 8; the polymer glue feed pipeline 4 and the hydrogenation catalyst feed pipeline 5 are connected to the return pipeline 3; The reactor consists of four parts connected in sequence from top to bottom: nozzle 2.1, suction chamber 2.2, mixing chamber 2.4 and diff...

Embodiment 2

[0021] A hydrogenation method for continuous hydrogenation of polymers, the steps comprising:

[0022] 1) Catalyst preparation: Mix nickel naphthenate and triisobutylaluminum at an aluminum-nickel molar ratio (calculated as metal) of 6:1, and age at 60°C for 30 minutes.

[0023] 3) The device of Example 1 was used for the hydrogenation reaction operation, which mainly includes a hydrogenation tank, a jet reactor and a circulating fluid heat exchanger. The whole device was pre-purged with nitrogen, and then replaced with hydrogen.

[0024] 4) Hydrogenation reaction: add SBS polymer glue (the concentration of the polymer glue is 5-20wt%) and the catalyst obtained in step 1 to the hydrogenation kettle after hydrogen replacement, and the amount of the hydrogenation catalyst for the first time is 0.06 gNi / 100g polymer, while passing hydrogen at the top of the hydrogenation tank and maintaining the hydrogen pressure at 3.0MPa (gauge pressure). The hydrogenated glue is released from...

Embodiment 3

[0026] Example 2 was basically repeated, except that the hydrogenation catalyst consumption was 0.05gNi / 100g polymer, and the hydrogenation reaction product was SEBS. The results are shown in Table 1.

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Abstract

The invention discloses a hydrogenation device and hydrogenation method for polymer continuous hydrogenation. The method comprises the following steps: in the presence of a hydrogenation catalyst, carrying out catalytic hydrogenation on a polymer colloidal liquid containing olefin unsaturated bond and hydrogen, wherein the used hydrogenation kettle contains a high-efficiency jet reactor; and sending the colloidal liquid part after hydrogenation into the subsequent unit, and circulating the rest colloidal liquid by a circulating liquid heat exchanger. The method avoids the side reaction of hydrogenating the benzene ring in the reaction kettle by the hydrogenation polymer, and one device can adapt to hydrogenation reaction of multiple polymers, thereby lowering the catalyst consumption, enhancing the yield of the colloidal liquid with satisfactory hydrogenation degree, and reducing the waste of the polymerization colloidal liquid in the hydrogenation process. The polymer continuous hydrogenation method disclosed by the invention can obtain the hydrogenation product with satisfactory hydrogenation degree.

Description

technical field [0001] The invention belongs to the field of macromolecule polymerization, in particular to a continuous hydrogenation device and method for polymers containing olefinic unsaturated bonds. technical background [0002] Polymers containing olefinic unsaturated bonds have low heat resistance, oxygen stability and aging resistance during use, resulting in short service life. To solve this problem, the olefinic unsaturated bonds of polymers are usually hydrogenated. Thereby greatly increasing its stability and making it have good thermal stability. [0003] Currently, hydrogenation methods mainly include batch hydrogenation and continuous hydrogenation. When a stirred tank is used for intermittent hydrogenation, the concentration of double bonds in the polymer glue in the early stage of the reaction is high, and the hydrogenation rate is fast, which will easily lead to a large heat release, making it difficult to control the reaction temperature, which will deac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F8/04C08F297/04
Inventor 崔志勇郭方飞闫邦锋郑学峰佀庆法
Owner 山东聚圣科技有限公司
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