公开(公告)号：US3928447A

公开(公告)日：1975-12-23

申请号：US45391874

申请日：1974-03-22

Applicant: TEXACO INC

Inventor： CHEN TING P ,  JONES RONALD E

IPC: C07C85/26

CPC classification number: C07C209/12

Abstract: This invention concerns a process for separating and purifying disecondaryalkyl dimethylammonium halides, a quaternary ammonium halide, from contaminants of the amine hydrohalide type through the treatment of a clarified, water-free, lower molecular weight alkanol medium with gaseous ammonia.

Abstract translation: 本发明涉及通过用气态氨处理澄清的无水低分子量链烷醇介质从胺氢卤酸盐类型的污染物中分离和纯化二烷基二甲基卤化铵（季铵卤化物）的方法。

公开(公告)号：US3890315A

公开(公告)日：1975-06-17

申请号：US26291872

申请日：1972-06-14

Applicant: TEXACO INC

Inventor： CHEN TING P

IPC: C07D295/023 ,  C07D87/26 ,  C07D87/24

CPC classification number: C07D295/023

Abstract: Liquid phase method for preparing an N-substituted morpholine comprising contacting hydrocarbon solution of an N-substituted bis-(2-hydroxyethyl) amine with alumina while maintaining the reaction mixture at a temperature in the range of 340* to 425* C.