Patents-Review.com
ClassID:

119325 ⎘

C22B11/044 - CPC Classification

Classification description:

Obtaining noble metals by wet processes; Recovery of noble metals from waste materials from pyrometallurgical residues, e.g. from ashes, dross, flue dust, mud, skim, slag, sludge

Recent Application in this class:
#1
20240150868
2024-05-09

METHOD FOR THE TREATMENT OF RESIDUES FROM THE ZINC AND LEAD PRODUCTION INDUSTRY, WITH OBTAINMENT OF EXPLOITABLE PRODUCTS AND SECONDARY RAW MATERIALS, ACCORDING TO THE STRATEGIES OF THE CIRCULAR ECONOMY

 #2
20230137480
2023-05-04

HYDROMETALLURGICAL METHOD FOR SIMULTANEOUSLY EXTRACTING METALS AND GYPSUM FROM THE DUST OF A STEELWORKS ELECTRIC ARC FURNACE

 #3
20210324496
2021-10-21

Method for enriching precious metals from printed circuit board incineration ash from molten pool by circulating chlorination

 #4
20210207244
2021-07-08

Recovery of precious metals from copper anode slime

 #5
20210002742
2021-01-07

System, apparatus, and process for leaching metal and storing thermal energy during metal extraction

 #6
20200165698
2020-05-28

Process for recovering precious metals from secondary resources

 #7
20200165697
2020-05-28

INTEGRATED RECOVERY OF METALS FROM COMPLEX SUBSTRATES

 #8
20200140973
2020-05-07

Method for recovering metals from secondary materials and other materials comprising organic constituents

 #9
20190316223
2019-10-17

Process of extraction of a platinum group metal or gold from organic compositions with surfactants

 #10
20180245177
2018-08-30

OPTIMIZED ORE PROCESSING USING MOLTEN SALTS FOR LEACHING AND THERMAL ENERGY SOURCE

 #11
20180195150
2018-07-12

Process and device for burn-off of precious metal-containing materials

 #12
20180112290
2018-04-26

Process for digestion of a metallic iridium- and/or iridium oxide-comprising mixture of solid particles

 #13
20160244862
2016-08-25

Process for the selective recovery of lead and silver

 #14
20160222532
2016-08-04

Purification of coal and fly ash by ionic liquids

 #15
20160208361
2016-07-21

Gold recovery from carbon

 #16
20160068928
2016-03-10

System apparatus and process for leaching metal and storing thermal energy during metal extraction

 #17
20160053342
2016-02-25

Integrated recovery of metals from complex substrates

 #18
20150252445
2015-09-10

System and method for recovering precious metals from precursor-type ore materials

 #19
20150252443
2015-09-10

System and method for recovering precious metals from precursor-type ore materials

 #20
20150211094
2015-07-30

Method for processing ash, particularly fly ash

 #21
20140298954
2014-10-09

Extraction of gold from fine carbon residue

 #22
20120237417
2012-09-20

Process for recovery of noble metals from functionalised, noble metal-containing adsorption materials

 #23
20120058043
2012-03-08

PROCESSES AND DEVICES FOR REMOVING RUTHENIUM AS RuO4 FROM RUTHENATE-CONTAINING SOLUTIONS BY DISTILLATION

 #24
20120036962
2012-02-16

Surface-modified biomass, preparation method thereof, and method for recovering valuable metals using the same

 #25
20110174112
2011-07-21

Method for the recovery of nobel metals

 #26
20110174111
2011-07-21

Method of mineral raw materials processing

 #27
20090191106
2009-07-30

PROCESSES AND DEVICES FOR REMOVING RUTHENIUM AS RuO4 FROM RUTHENATE-CONTAINING SOLUTIONS BY DISTILLATION

 #28
20090071881
2009-03-19

Method for Production of Bulk Concentrate for Extracting Precious Metals

 #29
20070245856
2007-10-25

Method for Recovering Gold

 #30
20050022629
2005-02-03

Method for concentrating precious metals contained in leaching residue discharged from copper hydrometallurgical process