Apparatus and final polymerization for preparing polyamide 5X, and production equipment and method of polyamide 5X
A polyamide and final polymerization device technology, applied in chemical instruments and methods, chemical/physical/physicochemical processes, chemical/physical processes, etc., can solve problems such as after-condenser description, achieve good molecular weight uniformity, gas-liquid Good separation effect and enhanced stirring effect
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Embodiment 1
[0089] Configuration pH is 7.95 the 56 salt solutions of 65% concentration, carry out polymerization according to the condition of table 1 by the production equipment of described polyamide 5X, the kettle body pressure is 210mmHgA, obtain the slice that relative viscosity is 68.9, and its terminal amino content is 40.4.
Embodiment 2
[0091] Configuration pH is 8.05 the 56 salt solutions of 65% concentration, carry out polymerization according to the condition of implementation 1 through the production equipment of polyamide 5X described, but the pressure of kettle body is adjusted to 180mmHgA, and the output is improved 20% compared with embodiment 1 , to obtain slices with a relative viscosity of 69.7 and a terminal amino group content of 40.1.
Embodiment 3
[0093] Except that the pressure in the still body was changed to 216mmHgA, other conditions were the same as in Example 2, and the output was also the same, and the slices with a relative viscosity of 56.1 and an amino terminal content of 42.6 were obtained.
[0094] Table 1 shows the relevant experimental data of prepared PA56 (polyamide 56):
[0095] Table 1
[0096]
[0097]
[0098] Unless otherwise defined, the terms used in the present invention have meanings commonly understood by those skilled in the art.
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