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:
Jan. 08, 2019
Filed:
Jun. 29, 2016
Orbite Technologies Inc., Saint-Laurent, CA;
Richard Boudreault, Saint-Laurent, CA;
Joël Fournier, Carignan, CA;
Denis Primeau, Ste-Julie, CA;
Marie-Maxime Labrecque-Gilbert, Laval, CA;
ORBITE TECHNOLOGIES INC., St-Laurent, CA;
Abstract
There are provided processes for preparing alumina. These processes can comprise leaching an aluminum-containing material with HCl so as to obtain a leachate comprising aluminum ions and a solid, and separating said solid from said leachate; reacting said leachate with HCl so as to obtain a liquid and a precipitate comprising said aluminum ions in the form of AlCl, and separating said precipitate from said liquid; and heating said precipitate under conditions effective for converting AlClinto AlOand optionally recovering gaseous HCl so-produced. These processes can also be used for preparing various other products such as hematite, MgO, silica and oxides of various metals, sulphates and chlorides of various metals, as well as rare earth elements, rare metals and aluminum.