摘要
Drastic import increaseChina entered the adipic acid industry ratherlate but development has been rapid.China’scapacity to produce adipic acid was around250000t/a in 2007.CNPC Liaoyang Petro-chemical Co.,Ltd.and China Shenma GroupCo.,Ltd.are the biggest producers in China.More than 20 small producers each also pro-duce several hundred tons to several thou-