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. 16, 1981
Filed:
Sep. 12, 1979
Applicant:
Inventors:
Andrea Robertiello, Rome, IT;
Ludwig Degen, Rome, IT;
Assignee:
E.N.I. Ente Nazionale Idrocarburi, Rome, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210728 ; 210902 ; 426624 ; 426635 ; 426807 ;
Abstract
For removing potassium salts from distiller's wash, an acid the potassium salts of which are poorly soluble and an organic solvent are added to the wash, whereafter the precipitated salts are collected on a filter and the solvent is recovered by distillation.