Abstract Many overseas chemical companies and research organizations had made effort to perfect the conventional producing methods of caprolactam.At the same time,they had carried out the research of producing caprolactam from butadiene and had got some achievements.Two synthesis methods are dicussed,one is producing caprolactam from butadiene and carbon monoxide;the other is hydrocyanation.It is indicated that the later is more likely to be commercialized.����
2004, Vol. 21 
