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Ester recovery device for dibutyl phthalate production

A dibutyl phthalate and static tank technology, applied in the separation/purification of carboxylic acid esters, organic chemistry, etc., can solve the problems of easy pollution of the environment, product waste, etc., to improve the separation time and increase the flow path effect

Inactive Publication Date: 2016-08-10
安徽力天环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Treat with the above method, one, it is easy to pollute the environment; the other, cause the waste of product

Method used

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  • Ester recovery device for dibutyl phthalate production
  • Ester recovery device for dibutyl phthalate production
  • Ester recovery device for dibutyl phthalate production

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Embodiment Construction

[0032] Such as Figure 1-2 As shown, the present invention includes neutralization, water washing, dealcoholization integrated kettle 1, horizontal separation tank 2, secondary static tank 3, heating kettle 4, waste water tower 5, condenser 6, liquid separation tank 7 and plate and frame press Filter.

[0033] Such as figure 2 , 3 , shown in 6, the neutralization, washing, dealcoholization integrated kettle 1 comprises a kettle body, the top of the kettle body is provided with an alcohol discharge port and an ester inlet, and the bottom of the kettle body is provided with a water outlet, a liquid outlet and an ester outlet.

[0034] The front end of the horizontal separation tank 2 is provided with a feed port, and the water outlet communicates with the feed port through a first pipeline 91 . The top of the rear end of the horizontal separation tank 2 is provided with a first ester return port, and the first ester return port communicates with the ester inlet port through ...

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Abstract

The invention discloses an ester recovery device for dibutyl phthalate production. The device comprises an alcohol removing kettle, a horizontal separation tank and a secondary standing tank, wherein a water outlet and a liquid outlet are formed in the bottom of the alcohol removing kettle, and an alcohol outlet is formed in the upper part of the alcohol removing kettle; a feed opening is formed in the front end of the horizontal separation tank, a first ester return port is formed in the top of the rear end of the horizontal separation tank, and a wastewater outlet is formed in the bottom of the rear end of the horizontal separation tank; the water outlet is communicated with the feed opening, and the first ester return port is communicated with the alcohol removing kettle; the liquid outlet is communicated with the top of the secondary standing tank; a second ester return port is formed in the sidewall of the secondary standing tank, and is communicated with the alcohol removing kettle. The device has the advantages of simple structure and capability of effectively recovering a product and reducing environmental pollution.

Description

technical field [0001] The invention relates to the technical field of dibutyl phthalate production, in particular to a recovery ester device for dibutyl phthalate production. Background technique [0002] Dibutyl phthalate is the most commonly used plasticizer for polyvinyl chloride, which can make the product have good flexibility, but its volatility and water extraction are relatively high, so its durability is poor. Dibutyl phthalate is an excellent plasticizer for nitrocellulose, with strong gelling ability, used in nitrocellulose coatings, and has good softening effect. Stability, flex resistance, adhesion and water resistance are superior to other plasticizers. Dibutyl phthalate can also be used as a plasticizer for polyvinyl acetate, alkyd resin, nitrocellulose, ethyl cellulose, neoprene, and nitrile rubber. [0003] The production process of dibutyl phthalate: phthalic anhydride and alcohol are heated and reacted in sulfuric acid as a catalyst to produce crude dib...

Claims

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Application Information

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IPC IPC(8): C07C67/48C07C69/80
CPCC07C67/48C07C69/80
Inventor 向晨陈文博梅国启
Owner 安徽力天环保科技股份有限公司
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