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1. US20200017935 - Systems and methods of efficiently recovering precious metals using an alkaline leach, ultrasound, and electrolysis

Office
United States of America
Application Number 16579595
Application Date 23.09.2019
Publication Number 20200017935
Publication Date 16.01.2020
Grant Number 10597753
Grant Date 24.03.2020
Publication Kind B2
IPC
C22B 11/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
11Obtaining noble metals
C22B 7/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
7Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
C22B 3/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
3Extraction of metal compounds from ores or concentrates by wet processes
CPC
C22B 7/006
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
7Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; ; Methods of a general interest or applied to the winning of more than two metals
006Wet processes
C22B 11/046
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
11Obtaining noble metals
04by wet processes
042Recovery of noble metals from waste materials
046from manufactured products, e.g. from printed circuit boards, from photographic films, paper or baths
Y02P 10/214
Y02P 10/234
Applicants All Green Recycling, Inc.
Inventors John Christopher Willcox
Matthew James Johnson
Peter J. Jegou
Agents NK Patent Law
Title
(EN) Systems and methods of efficiently recovering precious metals using an alkaline leach, ultrasound, and electrolysis
Abstract
(EN)

The subject matter described herein includes a method for extracting a desired metal from a substance. The method includes contacting the substance with an alkaline leach to separate the desired metal from the substance, providing ultrasound energy and anodic current on a work face of the substance, etching the substance with the alkaline leach, thereby releasing the desired metal from the substance, and collecting the released desired metal.

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