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Polycondensation reactor with wet-out capability for polycarbonate production

A polycondensation reactor, polycarbonate technology, applied in chemical/physical/physical-chemical stationary reactors, chemical instruments and methods, chemical/physical/physical-chemical processes, etc. Power and other issues, to achieve the effect of high mass transfer efficiency, uniform quality and high transparency

Active Publication Date: 2021-03-09
PUYANG SHENGTONGJUYUAN ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the rotation process of the disk reactor consumes a lot of power, and the polymer chains are usually broken due to excessive shear force.

Method used

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  • Polycondensation reactor with wet-out capability for polycarbonate production
  • Polycondensation reactor with wet-out capability for polycarbonate production

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Embodiment Construction

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0020] Such as figure 1 and figure 2 As shown, the present invention proposes a polycondensation reactor with wetting performance for producing polycarbonate, comprising: a precondensation reactor 1 with wetting performance, and the precondensation reactor is a horizontal cylinder structure; Described prepolycondensation reactor comprises first feed inlet 4 and first discharge port 5, and described precondensation reactor is also provided with the first drive shaft 3 that runs through the described precondensation reactor, and ...

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Abstract

The invention relates to a polycondensation reactor with wetting performance for producing polycarbonate, comprising: a precondensation reactor with wetting performance, provided with a first drive shaft, and a plurality of first discs are arranged on the first drive shaft, A plurality of first transverse blades and a plurality of first transverse scrapers are arranged on each first disc, and a first scraper is arranged in the middle of every two adjacent first discs; The high-performance final polycondensation reactor is provided with a second drive shaft, and a plurality of second discs are arranged on the second drive shaft, and each second disc is provided with a plurality of second transverse blades and a plurality of second transverse scrapers. slices, and a second scraper is arranged between every two adjacent second discs. The polycondensation reactor with wetting performance for the production of polycarbonate of the present invention can form a material film with strong fluidity, has high mass transfer efficiency, can quickly and efficiently remove small molecules, and can obtain large molecular weight, uniform quality, and transparency. high product.

Description

technical field [0001] The invention relates to a polycondensation reactor with wetting performance for producing polycarbonate. Background technique [0002] The preparation of polycarbonate by melt polycondensation itself is a reversible equilibrium reaction. From the mechanism of the reversible reaction, it can be seen that if the equilibrium is shifted to the right, it must be analyzed from the reaction temperature, concentration, and pressure. In the case that the concentration of the reactants is constantly decreasing and the product is degraded if the temperature is too high, continuously reducing the concentration of the by-product phenol is the most direct and effective means to increase the conversion rate of the reaction. However, under the condition of high temperature and high viscosity, various areas in the reactor are prone to uneven heating, increased side reactions, untimely update of the interface, small molecules cannot be removed in time, and qualified PC...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/18C08G64/20
CPCB01J19/0053B01J19/1887C08G64/205
Inventor 殷鹏刚陈颖史吉华
Owner PUYANG SHENGTONGJUYUAN ADVANCED MATERIALS CO LTD