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:
Nov. 04, 1997
Filed:
Jun. 26, 1996
Peter Ho Peng, Heathrow, FL (US);
Vulcan Materials Company, Birmingham, AL (US);
Abstract
A process for removing SO.sub.2 from a gas mixture including SO.sub.3 and SO.sub.2 having a volume ratio of SO.sub.3 to SO.sub.2 greater than 1. The process includes intimately contacting the gas mixture in a contacting zone, removing a stream of purified gas containing less SO.sub.2 than the gas mixture from an upper portion of the contacting zone, and removing a stream of sulfuric acid from a lower portion of the contacting zone. Also provided are processes for manufacturing sulfuric acid utilizing the process for removing SO.sub.2 which allow increasing the production of concentrated sulfuric acid solutions by producing more sulfur trioxide without an increase of sulfur dioxide emissions.