The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 1985
Filed:
Feb. 17, 1984
Applicant:
Inventor:
Edward E McEntire, Austin, TX (US);
Assignee:
Texaco Inc., White Plains, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07C / ;
U.S. Cl.
CPC ...
544177 ; 564499 ; 564437 ;
Abstract
A method for the separation of primary amines such as bis-(2-aminoethyl)ether from tertiary amines such as N-(2-methoxyethyl)morpholine which have close boiling points via extraction using a non-polar hydrocarbon solvent is described. Alternatively, a polyhydroxylic compound or a mixture of such compounds may be added to a stream containing both bis-(2-aminoethyl)ether and N-(2-methoxyethyl)morpholine before extraction with the non-polar hydrocarbon is performed. The N-(2-methoxyethyl)morpholine is selectively removed by the hydrocarbon.