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:
Jun. 22, 2021
Filed:
May. 17, 2017
Bromine Compounds Ltd., Beer Sheva, IL;
Tenova Advanced Technologies Ltd, Yokneam, IL;
Keren Larmour-Ship, Mitzpe Netofa, IL;
Tal Fabian, Kiryat Tivon, IL;
Alan Miller, Haifa, IL;
Sharon Krumbein Rubin, Kibbutz Naan, IL;
Elizabeta Shandalov, Omer, IL;
Mira Bergstein Freiberg, Omer, IL;
BROMINE COMPOUNDS LTD, Beer Sheva, IL;
TENOVA ADVANCED TECHNOLOGIES LTD, Yokneam, IL;
Abstract
A process for recovering gold from a gold-containing raw material, comprising leaching the gold-containing material with an aqueous solution comprising elemental bromine and bromide source to form a pregnant leach solution with the gold dissolved therein; separating said pregnant leach solution from the gold-depleted raw material, removing elemental bromine from said pregnant leach solution, extracting the gold from the pregnant leach solution in an acidic environment into an organic extractant, to form a gold-loaded extract and bromide-containing raffinate, stripping the extract with an alkaline aqueous solution to form a gold-bearing aqueous solution, generating gold (Au) and treating bromide-containing stream(s) to produce recyclable elemental bromine.