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Device and process method for producing isooctyl nitrate

A technology of isooctyl nitrate and isooctyl alcohol, which is applied in the field of microreactor devices, can solve problems such as potential safety hazards and low production efficiency, and achieve cost saving of raw materials, avoiding potential safety hazards, high operational safety and selectivity Effect

Active Publication Date: 2015-04-29
大连微凯化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention overcomes the problems of potential safety hazards and low production efficiency in the prior art, and adopts a connecting device composed of a series of micro-mixers and alloy tube reactors to produce isooctyl nitrate, and utilizes the high efficiency of the device The heat and mass transfer ability and the characteristics of easy direct amplification make the conversion rate of isooctyl alcohol reach more than 99%, and the yield of isooctyl nitrate reach more than 98%; the present invention has higher operation safety and selectivity, and can Realizing the continuous reaction is of great significance to strengthen and ensure the efficient and safe production of isooctyl nitrate

Method used

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  • Device and process method for producing isooctyl nitrate
  • Device and process method for producing isooctyl nitrate
  • Device and process method for producing isooctyl nitrate

Examples

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Embodiment 1

[0043] use figure 1 The micro-reactor device, the mixed acid of fuming nitric acid and concentrated sulfuric acid is added to the raw material storage tank V1, and iso-octanol is added to the raw material storage tank V2, the volume flow ratio of the mixed acid and iso-octanol is adjusted, and the fuming nitric acid and iso-octanol are controlled. The molar ratio of octanol is 1.1, and the molar ratio of concentrated sulfuric acid and fuming nitric acid is 1.1, which are fed by feed pump P1 and feed pump P2 respectively. The total flow rate of feed is 20L / h, and the constant temperature cooling bath is set to 0~ 10 o C. The two feed liquids enter the micro-mixer A to mix and further react in the tube reactor. The reaction liquid enters the receiving storage tank, stands for stratification, separates the acid liquid, washes the ester layer with water, alkali washes and then washes with water. to neutral. The purity of product isooctyl nitrate is 99.6%, and the yield is 98.4%....

Embodiment 2

[0045] The process is the same as in Example 1, only the total flow rate of the feed is changed to 2.0 L / h, and the micro-mixer B is used. The purity of the product isooctyl nitrate is 99.7%, and the yield is 99%.

Embodiment 3

[0047] The process is the same as in Example 1, except that the total flow rate of the feed is changed to 80 L / h, and the micro-mixer C is used. The purity of product isooctyl nitrate is 99.2%, yield 98.6%.

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Abstract

The invention discloses a device for producing isooctyl nitrate and a process method for producing isooctyl nitrate by using the device. The device comprises a feed system, a precooling system, a mixing system, a reaction system, a receiving system and a circulating bath system, and particularly is an industrial device capable of being used for efficiently and safely producing isooctyl nitrate. The invention mainly aims to solve the problems of potential safety hazards and low production efficiency of the prior art, a connecting device for a micro mixer and an alloy tube array reactor is adopted, and the characteristics of efficient heat and mass transferring capacity and easiness for direct amplification of the device are utilized to ensure that the conversion rate of isooctyl alcohol reaches more than or equal to 99% and the yield of isooctyl nitrate reaches more than or equal to 98%. The device and the method disclosed by the invention have relatively high operational safety and reaction selectivity, can be used for realizing continuous reaction, and are of great significance for strengthening and guaranteeing efficient and safe production of isooctyl nitrate.

Description

technical field [0001] The invention relates to a micro-reactor device, in particular to a micro-reactor device capable of efficiently and safely producing isooctyl nitrate and a process for producing isooctyl nitrate with the device. Background technique [0002] Micro-reaction technology originated in the 1990s. Micro-reaction technology was originally in the form of a chip reactor, which etched simple channels on the chip. With the wide application of this chip reactor in the field of biological analysis, micro-reaction The advantages of microreactors gradually became prominent, and gradually began to realize that microreactors are stronger than conventional high-efficiency mass and heat transfer capabilities, so microreactors were applied to the field of chemical synthesis; microreactors have developed to this day, no longer simply pursuing reaction channels However, through structural design, the macroscopic fluid is structured, and the fluid flow pattern is changed thr...

Claims

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Application Information

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IPC IPC(8): C07C203/04C07C201/02B01F13/00
CPCY02P20/10
Inventor 曾伟滕坤朱世伟李珊珊王明爽
Owner 大连微凯化学有限公司
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