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:
May. 19, 2026
Filed:
Jul. 12, 2021
Ocp SA, Casablanca, MA;
Yassine Azhari, Safi, MA;
OCP SA, Casablanca, MA;
Abstract
The invention relates to a method for manufacturing sulphuric acid, which involves converting sulphur dioxide SOinto sulphur trioxide SO, by injecting gaseous sulphur dioxide into a converter () inside which at least one mass () of a catalyst for the conversion is present, and according to which, during phases in which the injection of the gaseous sulphur dioxide is stopped, the space inside the converter () is heated in such a way as to maintain a minimum temperature of 200° C., and preferably 250° C., within each catalyst mass (), characterized by the fact that the stopping of the injection of the sulphur dioxide is slaved to the starting of the heating, and vice versa.