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:
Jul. 05, 1988
Filed:
Feb. 26, 1987
Applicant:
Inventor:
Pierre Baumgartner, Grenoble, FR;
Assignee:
Institut Francais du Petrole, Rueil Malmaison, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10C / ;
U.S. Cl.
CPC ...
208 45 ; 208309 ; 208311 ; 208313 ; 208321 ; 208428 ; 208322 ; 208323 ; 208370 ; 1062 / ; 106278 ; 44 51 ; 44 61 ; 241 14 ; 241 15 ; 241 16 ;
Abstract
This process for fractionating solid asphalts is operable under low temperature and pressure conditions. The process consists of treating a suspension of asphalt powder in a surfactant-containing aqueous phase by means of a hydrocarbon solvent immiscible with water and of separating: