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:
Apr. 06, 1999
Filed:
Mar. 12, 1997
Applicant:
Inventor:
Glenn Roof, Sugar Land, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B08B / ; C23G / ;
U.S. Cl.
CPC ...
134 2214 ; 134 2219 ; 134 39 ; 134 40 ; 510264 ; 510501 ;
Abstract
The present invention provides a method of dissolving coke oven gas deposits comprising treating the deposits with a combination of a first amide and a second amide under conditions and at a ratio sufficient to dissolve a first amount of the deposit greater than a second amount of the deposit calculated based upon the proportional individual solvencies of the first amide and the second amide, wherein the first amide comprises N-methyl-2-pyrrolidinone.