Apparatus and process for preparing polyamide
AssigneeHanwha Solutions Corporation
InventorsDokyoung Kim, Do Hyun Seo, Jinseo Lee
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Abstract
The present invention relates to an apparatus and a process for preparing a polyamide. Specifically, the present invention relates to an apparatus and a process for preparing a polyamide that enhances the degree of fixation of a diamine during the polycondensation of a diamine and a dicarboxylic acid. The apparatus and process for preparing a polyamide according to an embodiment of the present invention are capable of enhancing the degree of fixation of a diamine during the polycondensation reaction of a diamine and a dicarboxylic acid.
Claims7
An apparatus (100) for preparing a polyamide, which comprises a reactor (10) provided with a stirrer (20) in which polycondensation of a diamine and a dicarboxylic acid is carried out;
- and a buffer (30), a fractionation distillation column (50), and a condenser (70) sequentially installed above the reactor (10), wherein the buffer (30) has an inner diameter larger than that of a pipe connection unit (16) by 10% or more and a ratio of length to inner diameter (L/D) of 1 or more, and the content of the diamine in the condensation water discharged through the condenser is 1% by mole or less.
Dependencies are inferred from the claim text.