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:
Apr. 02, 2024
Filed:
Apr. 03, 2019
Reliance Industries Limited, Mumbai, IN;
Sateesh Daggupati, Khamman, IN;
Sachchit Majhi, Jamshedpur, IN;
Sukumar Mandal, Faridabad, IN;
Asit Kumar Das, Jamnagar, IN;
Vipulkumar Rameshbhai Panchotia, Morbi, IN;
Mehul Bharatbhai Joshi, Bhavnagar, IN;
Gopal Ravichandran, Jamnagar, IN;
Praveen Kumar Chinthala, Jamnagar, IN;
Swapan Kumar Ghosh, Navi Mumbai, IN;
Ajit Vishwanath Sapre, Tampa, FL (US);
Reliance Industries Limited, Mumbai, IN;
Abstract
A process for obtaining vanadium component in the form of vanadium oxide from gasifier slag is disclosed. The process comprises pulverizing the slag to obtain pulverized slag, which is blended with water and an alkali salt to obtain a slurry. The slurry is dried and then roasted in the presence of air to obtain a roasted slag. The roasted slag is leached to obtain a first filtrate comprising the vanadium component. The first filtrate is reacted with a magnesium salt to remove a silica component in the form of a precipitate. The silica free second filtrate is reacted with an ammonium salt to obtain ammonium metavanadate, which is further calcined to obtain the significant amount of vanadium pentoxide (VO).