公开(公告)号：US3527826A

公开(公告)日：1970-09-08

申请号：US3527826D

申请日：1969-05-19

Applicant: TORAY INDUSTRIES

Inventor： SONODA TAKESHI ,  SATO MASAKI

IPC: B01J29/18 ,  B01J29/80 ,  C07C6/12 ,  F16L21/025 ,  B01J11/40 ,  B01J11/52 ,  C07C3/58

CPC classification number: F16L21/025 ,  B01J29/18 ,  B01J29/80 ,  C07C6/123 ,  C07C2529/18 ,  Y02P20/52

公开(公告)号：US3904608A

公开(公告)日：1975-09-09

申请号：US39471473

申请日：1973-09-06

Applicant: TORAY INDUSTRIES

Inventor： TAKAYANAGI KAZUO ,  SONODA TAKESHI

IPC: C07D223/12 ,  B01J27/00 ,  C07B61/00 ,  C07D201/04

CPC classification number: C07D201/04 ,  Y02P20/52

Abstract: A process for producing lactam by Beckmann rearrangement of cycloalkanone oxime. A cycloalkanone oxime is contacted at an elevated temperature, with sulfate or phosphate of metal ions selected from manganese, ferrous, ferric, cobalt, nickel, zinc and cadmium in the presence of at least one mole of hydrogen chloride per mole of the cycloalkanone oxime. Lactam can be recovered from the reaction mixture without producing ammonium sulfate as a by-product.

公开(公告)号：US3541174A

公开(公告)日：1970-11-17

申请号：US3541174D

申请日：1968-12-03

Applicant: TORAY INDUSTRIES

Inventor： INOUE TAKEHISA ,  MIYATA TADASHI ,  SONODA TAKESHI ,  HASHIGUCHI TAKESHI ,  SATO MASAKI

IPC: B01J29/06 ,  B01J29/70 ,  C07B61/00 ,  C07C1/00 ,  C07C5/27 ,  C07C6/12 ,  C07C15/08 ,  C07C67/00 ,  C01B33/28 ,  C07C3/50 ,  C07C3/58

CPC classification number: C07C6/126 ,  B01J29/06 ,  B01J29/70 ,  C07C5/2737 ,  C07C6/123 ,  C07C2529/06 ,  Y02P20/52 ,  C07C15/08