An object of the present invention is to provide an isocyanate production process, which is free of the various problems found in the prior art, and which uses a composition containing a carbamic acid ester and an aromatic hydroxy compound when producing isocyanate without using phosgene, as well as a carbamic acid ester composition for transferring or storing carbamic acid ester. The present invention discloses an isocyanate production process including specific steps and using a composition containing a carbamic acid ester and an aromatic hydroxy compound, as well as a composition for transfer or storage of carbamic acid ester comprising the carbamic acid ester and the specific aromatic hydroxy compound.
本发明的目的是提供一种
异氰酸酯生产工艺,该工艺不使用
光气,使用含有
碳酸酯和芳香羟基化合物的组合物生产
异氰酸酯,避免了先前技术中发现的各种问题,以及用于转移或储存
碳酸酯的
碳酸酯组合物。本发明揭示了一种
异氰酸酯生产工艺,包括特定步骤和使用含有
碳酸酯和芳香羟基化合物的组合物,以及用于转移或储存
碳酸酯的组合物,包括
碳酸酯和特定的芳香羟基化合物。