1,6-hexamethylene diisocyanate industrial production system
The utility model discloses a 1,6-hexamethylene diisocyanate industrial production system. The system comprises a reactor I for generating 1,6-hexamethylene diisocyanate and a reactor II for decomposing the 1,6-hexamethylene diisocyanate. The reactor I is connected with a raw material mixing tank an...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The utility model discloses a 1,6-hexamethylene diisocyanate industrial production system. The system comprises a reactor I for generating 1,6-hexamethylene diisocyanate and a reactor II for decomposing the 1,6-hexamethylene diisocyanate. The reactor I is connected with a raw material mixing tank and connected with the reactor II through a 1,6-hexamethylene diisocyanate purifying device and a heater in sequence. The reactor I is further connected with a cooling separation and recovery device. The cooling separation and recovery device is connected with a liquid ammonia tank. A gas circulation circuit I is connected between the reactor I and the cooling separation and recovery device. A gas circulator I is arranged on the gas circulation circuit I. The gas circulation circuit I is connected with a gas carrier supplement pipeline. The reactor II is connected with an additive mixing tank and the 1,6-hexamethylene diisocyanate purifying device. The 1,6-hexamethylene diisocyanate industrial production system can conduct clean production, main raw materials include hexanediamine, urea, ethanol, diethyl carbonate and the like, and the harm of phosgene which is harmful to media badly is avoided. |
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