据日本化纤协会统计数字 ,2 0 0 0年日本四大会社纤维原料的总生产能力已达 31 4万ｔ,其中乙内醯胺为 5 7.8万ｔ。经宇部公司对世界已内醯胺化学原料市场的观测研究 ,掌握了近年乙内醯胺所经历的由产能过剩到供应不足、从低利润到高利润的周期和规律 ,雄心勃勃地制定了三年发展 According to the statistics of the Japan Chemical Fiber Association, the total production capacity of fiber raw materials for the Japan IV Congress in 2000 has reached 314 thousand tons, of which ketamine is 578 thousand tons. The observation and research of the U.S. Department of the U.S. on the chemical market for internal chemical amines in the world has mastered the cycles and laws of overcapacity to supply shortages, low profits to high profits, and ambitions in recent years. Year of development