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Chemical reaction device and application thereof

A technology of reaction unit and synthesis reactor, which is used in organic chemistry, chemical instruments and methods, preparation of organic compounds, etc., to achieve the effects of good selectivity, high yield of target products, and high conversion rate of raw materials

Active Publication Date: 2018-08-24
上海载正化工科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, so far, the isobutylene process technology is still in the hands of foreign-funded enterprises, and the domestic self-developed isobutene process technology is rarely commercialized

Method used

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  • Chemical reaction device and application thereof
  • Chemical reaction device and application thereof
  • Chemical reaction device and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0355] Embodiment 1 methyl methacrylate reaction device

[0356] Such as figure 1 As shown, the device includes a three-phase bubbling bed synthesis reactor, an inlet and outlet connection of the three-phase bubbling bed synthesis reactor, a first separator, an extraction separation tower, a raw material recovery tower, a circulating extract liquid cooler, and a raw material liquid preparation tank, reaction liquid feed pump, feed heater, feed gas heater, purge gas condenser, second separator, purge gas scrubber, first control valve, second control valve, catalyst feed port, Purge gas outlet, catalyst discharge port, heat extraction device, gas-liquid distributor, liquid extraction filter unit, gas distributor, liquid feed port;

[0357] The purge gas outlet of the three-phase bubbling bed synthesis reactor is connected with the purge gas condenser;

[0358] The liquid extraction filter unit of the three-phase bubbling bed synthesis reactor is connected with the first separa...

Embodiment 2

[0404] Adopt the reaction device (reaction system and separation method) that embodiment 1 provides, prepare methyl methacrylate at different reaction conditions with different feed conditions and catalyst content, carry out continuous separation test simultaneously, feed conditions and catalyst content are as follows Shown in Table 1, reaction conditions are shown in Table 2.

[0405] Described reaction system and separation method specifically include:

[0406] 1) Add a certain concentration of granular catalyst slurry (catalyst solid particle nano-gold 30% aqueous solution) into the reactor with deionized water to reach a liquid level of 80%;

[0407] 2) Feed nitrogen from the air feed line of the reactor to keep the catalyst in suspension in the reactor while establishing the reaction system pressure;

[0408] 3) add methanol in the extraction tower to establish a certain liquid level (80% liquid level);

[0409] 4) Add methanol aqueous solution to the methanol recovery ...

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Abstract

The invention discloses a chemical reaction device, which comprises a reaction unit, a separation unit and a recovery unit, wherein the reaction unit, the separation unit and the recovery unit are sequentially connected; the reaction unit comprises a three-phase bubble bed synthesis reactor. The invention also discloses a reaction device and method for preparing methyl methacrylate. The device provided by the invention is used for preparing the methyl methacrylate, and has the advantages that the raw material conversion rate is high; the target product yield is high; the selectivity of the methyl methacrylate is high.

Description

technical field [0001] The application relates to a chemical reaction device and its application, belonging to the technical fields of chemical material preparation and chemical engineering. Background technique [0002] Methyl methacrylate (MMA) is an important organic chemical raw material, mainly used to produce plexiglass (polymethyl methacrylate, PMMA), and also used to make other resins, plastics, coatings, adhesives, lubricants It has a wide range of uses, such as sizing agent for wood and cork, impregnating agent for motor coils, paper polishing agent, printing and dyeing auxiliaries, and insulating potting materials. In recent years, the Asian market has a strong demand for electronic / electrical / optical products, display signs, various lighting equipment and lamps, which has promoted the rapid development of the MMA industry. While the demand for transparent resin used in toys, stationery and other items continues to increase rapidly, the demand for LCD core compon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C67/08C07C67/48C07C67/58C07C67/62C07C69/54C07C51/235C07C57/04
CPCC07C51/235C07C67/08C07C67/48C07C67/58C07C67/62C07C69/54C07C57/04C07C67/39
Inventor 安丽华
Owner 上海载正化工科技发展有限公司
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