Continuous hydrogenation production device and production method for carbon-carbon double bonds in unsaturated polymer

A carbon double bond, feeding device technology, applied in chemical instruments and methods, chemical/physical processes, etc., can solve the problems of large operating capital, high warehouse costs, buildings and operation and management costs, so as to reduce auxiliary costs and improve process. Safety, mild reaction conditions and effects

Active Publication Date: 2020-11-06
山东京博中聚新材料有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, warehouses are expensive not only because of their building and operating overhead, but also because of the large amount of working capital

Method used

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  • Continuous hydrogenation production device and production method for carbon-carbon double bonds in unsaturated polymer
  • Continuous hydrogenation production device and production method for carbon-carbon double bonds in unsaturated polymer
  • Continuous hydrogenation production device and production method for carbon-carbon double bonds in unsaturated polymer

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Experimental program
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Effect test

Embodiment 1

[0127] Connect the experimental device according to the present invention, add latex raw materials with 5% solid content, colloidal particle size less than 20nm, and 10 phr potassium oleate additive based on raw rubber quality into the raw material pretreatment tank and mix them, then use a metering pump Put the latex into the feeding tube at a flow rate of 10mL / min, mix it with hydrogen at a flow rate of 5000mL / min in the feeding tube, preheat it to 115°C, and enter the hydrogenation reaction with a supported catalyst with an active component loading of 0.1%. After hydrogenation, the latex flows out of the reactor and enters the condensing system, where samples are taken for infrared testing to measure the degree of hydrogenation. When the reaction is over, the H is emptied 2 pressure and drain the latex from the container. Rinse the reaction equipment with clean water.

Embodiment 2

[0129] Connect the experimental device according to the present invention, add latex raw materials with 5% solid content, colloidal particle size less than 20nm, and 10 phr potassium oleate additive based on raw rubber quality into the raw material pretreatment tank and mix them, then use a metering pump Put the latex into the feeding tube at a flow rate of 10mL / min, mix it with hydrogen at a flow rate of 5000mL / min in the feeding tube and preheat it to 115°C, and enter the hydrogenation reaction with a supported catalyst with an active component loading of 0.05%. After hydrogenation, the latex flows out of the reactor and enters the condensing system, where samples are taken for infrared testing to measure the degree of hydrogenation. When the reaction is over, the H is emptied 2 pressure and drain the latex from the container. Rinse the reaction equipment with clean water.

Embodiment 3

[0131] Connect the experimental device according to the present invention, add latex raw materials with 5% solid content, colloidal particle size less than 20nm, and 10 phr potassium oleate additive based on raw rubber quality into the raw material pretreatment tank and mix them, then use a metering pump Put the latex into the feeding tube at a flow rate of 10mL / min, mix it with hydrogen at a flow rate of 5000mL / min in the feeding tube, preheat it to 115°C, and enter the hydrogenation reaction with a supported catalyst with an active component loading of 0.02%. After hydrogenation, the latex flows out of the reactor and enters the condensing system, where samples are taken for infrared testing to measure the degree of hydrogenation. When the reaction is over, the H is emptied 2 pressure and drain the latex from the container. Rinse the reaction equipment with clean water.

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Abstract

The invention provides a continuous hydrogenation production method for carbon-carbon double bonds in conjugated diene latex. The method comprises the following steps: mixing conjugated diene latex and an assistant in a raw material pretreatment kettle to obtain a mixture; filtering the mixture, mixing with hydrogen generated by a hydrogen generation device, preheating by a preheater, and reactingin a hydrogenation reactor to obtain a hydrogenated copolymer, wherein a supported catalyst is arranged in the hydrogenation reactor, the supported catalyst comprises a carrier and an active component, the active component is a group VIII metal compound shown as a formula (I), the hydrogenated copolymer is subjected to heat exchange through the raw material preheater and gas-liquid separation through the gas-liquid separation tank, and hydrogenated copolymer latex at the bottom of the tank is conveyed to the product tank through the product conveying pump. A specific heterogeneous hydrogenation catalyst is adopted, and devices such as a fixed bed reactor are combined so that conjugated diene selective hydrogenation reaction can be efficiently realized, and a high-hydrogenation-degree product can be obtained. Thea continuous hydrogenation mode is used so that the production efficiency and the process safety are improved.

Description

technical field [0001] The invention relates to the technical field of catalytic hydrogenation, in particular to a continuous hydrogenation production device and production method of carbon-carbon double bonds in unsaturated polymers. Background technique [0002] Chemical reactions can be performed in batch processing mode, continuous mode or semi-batch processing mode. Until now, the hydrogenation of polymer-based dienes using a catalyst was usually carried out by a semi-batch process. [0003] US-B 5,561,197 and US-B 5,258,467 describe batch-wise production of hydrogenated polymers using organometallic catalysts. [0004] However, the continuous reaction mode is more favorable in terms of operation, maintenance, production and cost. In general, the most common types of reactors used in a continuous process are continuous stirred tank reactors and tubular reactors. For heterogeneous hydrogenation reaction systems (in which the catalyst used is in the solid phase and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/02C08F8/04C08F136/04
CPCB01J8/02C08F8/04C08F136/04
Inventor 王辉曹峰郭宗磊周德芳佟伟超黎艳艳郝福兰马韵升栾波蔡颖辉刘振学
Owner 山东京博中聚新材料有限公司
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