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. 03, 2012
Filed:
May. 12, 2011
Jaime Sanchez Valente, Mexico City, MX;
Esteban Lopez Salinas, Mexico City, MX;
Manuel Sanchez Cantu, Mexico City, MX;
Francisco Hernandez Beltran, Mexico City, MX;
Jaime Sanchez Valente, Mexico City, MX;
Esteban Lopez Salinas, Mexico City, MX;
Manuel Sanchez Cantu, Mexico City, MX;
Francisco Hernandez Beltran, Mexico City, MX;
Instituto Mexicano Del Petroleo, Mexico City, MX;
Abstract
A procedure for obtaining mixed multimetallic oxides derived from hydrotalcite type compounds, characterized in that the laminar metallic hydroxides obtained are constituted by three or four metallic cations, forming part of the sheets of the hydrotalcite type material represented by the formula:[M(II)M(II)'M(III)M(III)′(OH)](A).HO.by a process comprising: (1) preparing an aqueous or organic solution containing three or more cations; (2) preparing an alkaline solution; (3) slowly combining solutions (1) and (2) to cause the co-precipitation of the cations in the form of hydroxides; (4) washing the precipitate containing the hydrotalcites with water, until removal of the non-precipitated ions; (5) drying; and (6) calcining the hydrotalcites.