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A kind of device and method for continuous separation of isopropyl phenol

A technology for isopropyl phenol and crystals, which is applied in the field of devices for continuous separation of isopropyl phenol, can solve the problems of difficulty in isopropyl phenol separation, low catalyst selectivity, and difficulty in industrialized production of isopropyl phenol, and saves equipment, reducing energy consumption, and shortening the effect of the purification process

Active Publication Date: 2015-08-19
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to effectively solve the problem that the selectivity of the catalyst in the process of producing isopropyl phenol is not high, the separation of o- and p-isopropyl phenol is difficult, and the industrial production of o- and p-isopropyl phenol is difficult

Method used

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  • A kind of device and method for continuous separation of isopropyl phenol
  • A kind of device and method for continuous separation of isopropyl phenol

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Embodiment

[0037] Such as figure 1 Shown, a device for continuous separation of o-p-isopropylphenol.

[0038] including tower 1 and tower 2 connected in series,

[0039] Rotating scrapers are respectively installed at the axis of the tower body in the tower 1 and the tower 2, the lower part of the tower 1 is provided with a grid, and the outer side of the tower 1 and the tower 2 is provided with a constant temperature feeding port;

[0040] A liquid purification section a, a crystal purification section b, a melting purification section c, and a crystal deposition section d are sequentially arranged in the tower 1 from top to bottom; above the constant temperature feed port 2 of the tower 1 is a liquid purification section a; Between the feed port 2 and the lower end of the rotating scraper is the crystal purification section b; between the lower end of the rotating scraper and the grid sieve is the melting purification section c; between the grid sieve and the bottom of the tower body ...

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Abstract

The invention discloses an apparatus and a method for continuously separating o-isopropylphenol and p-isopropylphenol. The apparatus comprises: a tower 1 and a tower 2, wherein the tower 1 and the tower 2 are connected in series, rotation scrapers are respectively arranged on tower body axis centers inside the tower 1 and the tower 2, the lower portion inside the tower 1 is provided with a grid, the outer sides of the tower 1 and the tower 2 are provided with constant temperature material inlets, a liquid purification section, a crystal purification section, a melting purification section and a crystal deposition section are sequentially arranged inside the tower 1 from top to bottom, a residue liquid recovery section, a crystal re-purification section and a crystal re-deposition section are sequentially arranged inside the tower 2 from top to bottom, and an outlet on the bottom of the tower 1 is connected with the constant temperature material inlet on the middle part of the tower 2. The method comprises that: a material requiring separation is subjected to continuous re-crystallization in the tower 1 and the tower 2 to separate o-isopropylphenol and p-isopropylphenol. With the apparatus and the method, continuous material feeding and material discharging can be achieved, and high purity o-isopropylphenol and p-isopropylphenol products can be produced.

Description

technical field [0001] The invention relates to the field of chemical industry, and more specifically, relates to a device and a method for continuously separating isopropyl phenol. Background technique [0002] Isopropylphenol mainly includes two isomers, p-isopropylphenol (p-IPP) and o-isopropylphenol (o-IPP). Among them, p-isopropylphenol (p-IPP) can be used as machine cleaners, wire coatings, synthetic resins, surfactants, adhesives and pharmaceutical and chemical intermediates, etc. body. In addition to being used as surfactant, adhesive and pharmaceutical intermediate, o-isopropylphenol (o-IPP) is particularly important as a synthetic intermediate of the pesticide leafhopper. At present, my country mainly adopts batch reaction to produce p-isopropyl phenol, often using aluminum phenate [Al(OC 6 h 5 ) 3 ] is a catalyzer, not only troublesome operation, low output, but also serious corrosion and pollution, low catalyst selectivity, and difficult separation of adjace...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C37/84C07C39/06
Inventor 冯海强朱跃辉高继东赵开径鲁耘
Owner CHINA PETROLEUM & CHEM CORP
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