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:
Dec. 17, 1996
Filed:
Nov. 01, 1995
Applicant:
Inventors:
Alessandro Nardella, Rome, IT;
Raffaello Sisto, Rome, IT;
Assignee:
Eniricerche S.p.A., Milan, IT;
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B08B / ;
U.S. Cl.
CPC ...
210634 ; 210770 ; 210908 ; 210909 ; 134 10 ; 134 251 ; 134 42 ;
Abstract
The present invention relates to a process for treatment of soils polluted by high-boiling organic substances, such as petroleum, polynuclear aromatics and chloro-organic substances, which process uses an extractant with high dissolving power for the pollutant, and which improves the soil-extractant contact thanks to the addition of a minimal amount of a hydrophilic co-solvent.