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１引言甲苯二异氰酸酯（ＴＤＩ）是聚氨脂工业的主要原料，它可用于涂料、油漆、纤维、胶粘剂、交联剂和航天工业火箭推进剂等。甘肃银光化学工业公司ＴＤＩ生产线是我国从西德ＢＡＳＦ公司引进的国内第一条最具世界先进水平的ＴＤＩ生产线。随着聚氨酯工业的迅速发展，对ＴＤ
1 Introduction Toluene diisocyanate (TDI) is the main raw material for the polyurethane industry. It can be used in coatings, paints, fibers, adhesives, crosslinkers and aerospace rocket propellants. Gansu Yinuang Chemical Industry Company TDI production line is China’s first introduction of BASF from West Germany’s first in the world’s most advanced TDI production line. With the rapid development of polyurethane industry, to TD