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. 02, 1991
Filed:
Jul. 25, 1990
Applicant:
Inventors:
Frederick W Jones, Campbellville, CA;
Frank Smith, Widnes, GB;
Assignee:
Chemetics International Company, Ltd., Montreal, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
422161 ; 422240 ; 422241 ; 420 50 ; 420 95 ; 2022671 ;
Abstract
Apparatus for the manufacture of sulphuric acid comprising at least one gas-concentrated sulphuric acid contacting unit and a sulphuric acid heat exchanger. The contacting unit and/or the heat exchanger is formed of high silicon content austenitic steel.