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:
Feb. 01, 1994
Filed:
Jan. 30, 1992
Applicant:
Inventor:
Samir S Ashrawi, Austin, TX (US);
Assignee:
Texaco Inc., White Plains, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
252-8554 ; 208390 ; 166272 ; 166275 ;
Abstract
The invention is a method for generating bitumen-in-water dispersions and emulsions useful for recovering and transporting bitumen, which comprises mixing an aqueous surfactant solution with bitumen at an elevated temperature, said surfactant system comprising about 0.005% to about 5% by weight of a sulfonate surfactant represented by the formula ##STR1## wherein R is an alkyl chain of about 6 to about 16 carbon atoms, x has an average value of about 2 to about 10, y has an average value of about 1 to about 10, R' is ethylene, propylene or butylene, and M.sup.+ is an alkali metal or ammonium ion.