Patent · US Expired

Preparation of morpholine

US4739051A · kind A · utility

17Cited by
2References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 17, 1987
Grant dateApr 19, 1988
Priority date
Expiry dateFeb 17, 2007

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01J23/755
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Morpholine and other cyclic imines are obtained by reacting diethylene glycol and other appropriate diols with ammonia under hydrogenating conditions in the gas phase in the presence of a catalyst which contains copper, a smaller amount of nickel and alumina.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.