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A kind of microtubular reaction device and the technology that utilizes this device to prepare hydrogenated nitrile rubber

A tubular reaction device and main reaction technology, applied in chemical instruments and methods, chemical/physical processes, chemical/physical/physical chemical processes, etc., can solve problems such as difficult cleaning and maintenance, and achieve overcoming cleaning and maintenance, convenient operation, The effect of low energy consumption

Inactive Publication Date: 2016-04-06
高剑峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned technical problems, the present invention provides a microtubular reaction device and a process for preparing hydrogenated nitrile rubber by using the device. The reaction device is assembled from a plurality of modules, which is convenient for installation and disassembly, and can overcome the problems of existing microchannels. Difficulty of difficult cleaning and maintenance of the reaction device

Method used

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  • A kind of microtubular reaction device and the technology that utilizes this device to prepare hydrogenated nitrile rubber
  • A kind of microtubular reaction device and the technology that utilizes this device to prepare hydrogenated nitrile rubber
  • A kind of microtubular reaction device and the technology that utilizes this device to prepare hydrogenated nitrile rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The selected microchannel reaction device has the following parameters: adopt a reaction module II to react, the number of inlets of the liquid inlet mixing distributor D is 2, the number of outlets is 8, and the inner diameter of the material pipe is an empty stainless steel pipe of 2mm. The length of each material pipe is 40m, and the specific operation steps are as follows:

[0062] ① First, the raw material nitrile rubber (NBR), the homogeneous catalyst tris(triphenylphosphine) rhodium chloride [RhCl(PPh3)3], and the ligand triphenylphosphine (PPh3) are added to the solvent to prepare a certain concentration of rubber liquid, wherein the NBR concentration is 6%, the mass ratio of catalyst RhCl(PPh3)3 to NBR is 200ppm, and the mass ratio of ligand PPh3 to NBR is 0.02:1.

[0063] ② Turn on the heating system to heat the preheating module I and reaction module II to the set temperature of 100°C;

[0064] ③Transfer the glue prepared in the above step ① to the feed inle...

Embodiment 2

[0068] In Example 1, another reaction module II was connected in series for reaction, and the product was detected by the bromine-iodide method, and the degree of hydrogenation was 30.4%. The specific reaction conditions and results are listed in Table 1.

Embodiment 3

[0070] In Example 1, three reaction modules II were connected in series for reaction, and the product was detected by the bromine-iodide method, and the degree of hydrogenation was 45.3%. The specific reaction conditions and results are listed in Table 1.

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Abstract

A micro-tube reaction device and a process for preparing hydrogenated nitrile rubber by using the device. The device comprises a preheating module I and reaction modules II. The preheating module I comprises a heat-conducting oil groove or a sealed steam groove and material pipes arranged in the groove. Each reaction module II comprises a heat-conducting oil groove or a sealed steam groove (A), a feeding and mixing distributor (D), a main reaction material pipe (R) and a discharging mixer (F). The feeding and mixing distributor (D), the main reaction material pipe (R) and the discharging mixer (F) are arranged in the heat-conducting oil groove (A) after being communicated with one another in sequence from top to bottom. A material discharging port of the preheating module I is communicated with feeding ports of the material feeding and mixing distributors (D).

Description

technical field [0001] The invention relates to the field of preparation of a microchannel reaction device, in particular to a microtubular reaction device and a process for preparing hydrogenated nitrile rubber by using the device. Background technique [0002] In the 21st century, micro-reaction technology has become a new research hotspot in the field of synthetic chemistry, the most obvious being the application of micro-channel reaction devices. For example, the Chinese patent CN101698646A design adopts the continuous nitrification process of microchannel reactor, which can effectively solve the process defect of rapid temperature explosion of nitrification reaction, and realize the continuous production of nitrate ester. The microstructure inside the micro-channel reaction device makes the micro-reaction device equipment have a huge specific surface area, which can reach hundreds or even thousands of times of the traditional tank-type reaction device. Microchannel rea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/00C08C19/02
CPCB01J19/00C08C19/02
Inventor 高剑峰
Owner 高剑峰