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:
Jun. 16, 1987
Filed:
Aug. 30, 1985
Applicant:
Inventors:
Gary M Masse, Burlington, CA;
Anthony C Edmonds, North York, CA;
Assignee:
C-I-L Inc., North York, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C01B / ; H05B / ;
U.S. Cl.
CPC ...
423532 ; 423522 ; 219 / ; 219 / ; 219 1057 ; 20415743 ; 20415749 ;
Abstract
Process and apparatus for the generation of sulphur trioxide from oleum using microwave energy for use in the sulphonation and nitration of organic compounds and the fortification of oleum. The process provides improved control of production and concentration of the sulphur trioxide produced and comprises subjecting sulphur trioxide-rich oleum feed to microwave energy for a sufficient period of time to produce sulphur trioxide vapour and spent oleum; isolating said sulphur trioxide vapour and collecting said spent oleum.