公开(公告)号：US3824231A

公开(公告)日：1974-07-16

申请号：US30140972

申请日：1972-10-27

Applicant: ALLIED CHEM

Inventor： KUBANEK A ,  SIENIADES S ,  FUHRMANN R

IPC: B01D9/02 ,  C07B57/00 ,  C07D223/12 ,  C07D41/06

CPC classification number: C07D223/12 ,  C07B57/00

Abstract: L-A-AMINOCAPROLACTAM IS OBTAINED BY A PROCESS COMPRISING THE STEPS OF: (A) FORMING A COMPLEX OF D,L-A-AMINOCAPROLACTAM WITH A METAL ION SELECTED O D,L-A-AMINOCAPROLACTAM OF NI++, CO++, CU++, FE++, FE+++ AND ZN++; (B) OPTICALLY RESOLVING SAID D,L-A-AMINOCAPROLACT M
(C) RECOVERING AND DECOMPOSING L-A-AMINOCAPRROLACTAM METAL COMPLEX TO AFFORD L-A-AMINOCAPROLACTAM PLUS METAL ION; AND (D) RACEMIZING D-A-AMINOCAPROLACTAM METAL COMPLEX TO AFFORD D-A-AMINOCAPROLACTAM METAL COMPLEX.

METAL COMPLEX WHEREBY SEPARATE PHASES RICH IN D AND L-A-AMINOCAPROLACTAM METAL COMPLEX, RESPECTIVELY ARE OBTAINED;