Polycondensation reactor having wetting property for producing polycarbonate
A polycondensation reactor, polycarbonate technology, applied in chemical/physical/physical-chemical stationary reactors, chemical instruments and methods, chemical/physical/physical-chemical processes, etc. Consumption and other problems, to achieve the effect of uniform quality, high transparency and high mass transfer efficiency
Active Publication Date: 2018-12-11
PUYANG SHENGTONGJUYUAN ADVANCED MATERIALS CO LTD
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- Description
- Claims
- Application Information
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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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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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The invention relates to a polycondensation reactor having a wetting property for producing polycarbonate. The polycondensation reactor having the wetting property for producing polycarbonate comprises a precondensation reactor having a wetting property and a final condensation reactor having a wetting property, wherein the precondensation reactor having the wetting property is provided with a first driving shaft, and a plurality of first disks are arranged on the first driving shaft; a plurality of first lateral blades and a plurality of first lateral doctor blades are arranged on each firstdisc, and a first scraper is arranged between every two adjacent discs; the final condensation reactor having the wetting property is communicated with the precondensation reactor having the wetting property and is provided with a second driving shaft, and a plurality of second discs are arranged on the second driving shaft; a plurality of second lateral blades and a plurality of second lateral doctor blades are arranged on each second disc, and a second scraper is arranged between every two adjacent discs. The polycondensation reactor having the wetting property for producing polycarbonate provided by the invention can form a material film with high mobility and high mass transfer efficiency, can quickly and efficiently remove small molecules, and can obtain a product with large molecularweight, uniform quality and high transparency.
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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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