Retrofitting of a polymer production apparatus
A technology for production equipment and polymers, which is applied in the field of modification of polymer production equipment and can solve problems such as additive degradation
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Embodiment 1
[0094] Production of continuous polymerization products including nylon 6,6. The continuous polymerization product flows through the primary manifold at a temperature of 265-300° C. and a pressure of 10-31 MPa. The primary manifold is in fluid communication with the two secondary manifolds through two primary manifold valves. Each primary manifold valve was opened to allow a portion of liquid polymer to flow through each secondary manifold at a temperature of 265-300°C and a pressure of 10-31 MPa. Each secondary manifold is in fluid communication with a different additive injection line. Each additive injection line is in fluid communication with an additive source. To prepare the nylon 6,6 polymer containing the additive, the additive is introduced from the additive storage tank into the additive injection line. The pressure of the additive in the additive injection line is set at least to the pressure in the liquid polymer flowing through the secondary manifold. The temp...
Embodiment 2
[0097]Production of the continuous polymerization product and addition of additives was carried out as in Example 1. The primary manifold is in contact with three secondary manifolds, each connected to a different additive injection line. The solidifier in contact with the primary manifold becomes clogged, resulting in no final polymer product being obtained from the solidifier. A first additive comprising a matting agent is injected into the first secondary manifold through the first additive injection line and combines with the liquid polymer to form a polymer product. A second additive comprising glass fibers is injected into the second secondary manifold through the second additive injection line and combines with the liquid polymer to form a polymer product. The additive injection valve connecting the third additive injection line to the third secondary manifold was closed. Each product communicates with a polymer solidifier in contact with its respective secondary mani...
Embodiment 3
[0099] Production of the continuous polymerization product and addition of additives was carried out as in Example 1. The primary manifold is in contact with three secondary manifolds, each connected to a different additive injection line. A first additive comprising 20 meq / kg of amine ends was injected into the first secondary manifold through the first additive injection line and combined with the liquid polymer to form a polymer product. A second additive comprising 40 meq / kg of amine ends was injected into the second secondary manifold through the second additive injection line and combined with the liquid polymer to form the polymer product. A third additive comprising 60 meq / kg of amine ends was injected into the third secondary manifold through the third additive injection line and combined with the liquid polymer to form the polymer product. Each product communicates with a polymer solidifier in contact with its respective secondary manifold to produce the final polym...
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