Method of obtaining multimetallic oxides derived from hydrotalcite-type compounds
CA 2562014 C · Owner: Sanchez Valente, Jaime · Inventors: Lopez Salinas, Esteban; Sanchez Cantu, Manuel; Hernandez Beltran, Francisco
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method of preparing multimetallic hydrotalcites the physicochemical characteristics thereof and the use of same as sulphur oxide (SOx) reducing materials, such as SO2 or SO3 which are contained in gaseous streams, particularly in flue gases emitted by the regeneration section of the fluid-bed catalytic cracking process. The inventive method improves the SOx absorption capacity per unit of specific area of multimetallic hydrotalcite obtained and the absorption and regeneration speeds of the calcination products of the aforementioned hydrotalcites with the , incorporation of ternary and/or quaternary cations in the laminae of said precursor materials. In …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed July 7, 2003 and granted February 11, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 7, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 7, 2025.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.