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:
Jun. 03, 1986
Filed:
Mar. 28, 1984
Applicant:
Inventors:
Hartmut Ilgner, Dortmund, DE;
Natarajan Thiagarajan, Dortmund, DE;
Gunter Heck, Wiesbaden, DE;
Aladar Lienerth, Kelkheim, DE;
Assignee:
Uhde GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
203 71 ; 203 18 ; 203 99 ; 203D / ; 203D / ; 568913 ;
Abstract
The invention relates to a process for the production of grade AA methanol by distilling raw methanol in several distillation stages, for separating grade AA methanol, tail gas, and fusel oil from the raw methanol and further processing the fusel oil to produce additional methanol of grade AA quality at a return ratio of 5:1 or higher.