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:
Aug. 22, 2000
Filed:
Aug. 25, 1998
Applicant:
Inventor:
Paul R Hart, The Woodlands, TX (US);
Assignee:
Betzdearborn Inc., Trevose, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10C / ;
U.S. Cl.
CPC ...
208309 ; 208 39 ; 208 44 ; 208 45 ;
Abstract
Disclosed are methods for improving the separation of resins and asphaltenes from each other and a base residuum during alkane deasphalting by adding a phase separation accelerator to the residuum. The phase separation accelerators include alkyl and alkylaryl alkoxylates, alkylaryl sulfonates, and hetero-atom punctuated fatty polymers.