ClassID:

119327

C22B11/048 - CPC Classification

Classification description:

Obtaining noble metals by wet processes; Recovery of noble metals from waste materials from spent catalysts

Recent Application in this class:
#1
20260132485
2026-05-14

METHOD OF RECOVERING VALUABLE RESOURCE

#2
20250290174
2025-09-18

PROCESS FOR THE RECOVERY OF PLATINUM FROM SPENT PLATINUM-CONTAINING SOLID RESIDUES

#3
20250243561
2025-07-31

METHOD FOR RECOVERING METAL FOR THE REGENERATING SPENT CATALYST

#4
20250215526
2025-07-03

METHOD FOR RECOVERING NOBLE METALS FROM CATALYTIC CONVERTER

#5
20250137091
2025-05-01

PROCESSES FOR RECOVERING RHODIUM FROM HYDROFORMYLATION PROCESSES

#6
20250059620
2025-02-20

METHOD FOR CATALYST RECOVERY FROM CATALYST-COATED MEMBRANES

#7
20240262853
2024-08-08

SELECTIVE SEPARATION OF HEXACHLOROPLATINATE(IV) DIANIONS BASED ON EXO-BINDING WITH CUCURBIT[6]URIL

#8
20240167120
2024-05-23

PLATINUM-GROUP METAL RECOVERY AGENT AND PLATINUM-GROUP METAL RECOVERY METHOD

#9
20240150867
2024-05-09

METHODS FOR LEACHING AND RECOVERY OF PLATINUM GROUP METALS IN ORGANIC SOLVENTS

#10
20240084420
2024-03-14

Method for leaching platinum group metals from spent catalyst by UV-vis

#11
20230407503
2023-12-21

METHOD FOR RECOVERING NOBLE METAL FROM HETEROGENEOUS CATALYSTS CONTAINING NOBLE METAL

#12
20230212712
2023-07-06

METHOD FOR RECOVERING PRECIOUS METAL FROM PRECIOUS METAL-CONTAINING WASTE CATALYST

#13
20230141211
2023-05-11

Process for recovering precious metals from molecular sieve bodies

#14
20230023272
2023-01-26

A METHOD OF RECOVERING IRIDIUM

#15
20220177999
2022-06-09

PGM converting process and jacketed rotary converter

#16
20200318218
2020-10-08

PROCESS FOR THE RECOVERY AND RECYCLING OF MATERIALS THAT CONSTITUTE SUPPORTED PALLADIUM MEMBRANES

#17
20200032370
2020-01-30

Apparatus for platinum group metals recovery from spent catalysts

#18
20190338380
2019-11-07

Jacketed rotary converter and PGM converting process

#19
20190284660
2019-09-19

Platinum group metals recovery

#20
20190161824
2019-05-30

Extraction of selected platinum-group metals from supported catalyst

#21
20180347008
2018-12-06

Method for the recovery of precious metal

#22
20180339286
2018-11-29

POLYMER-SUPPORTED CHELATING AGENT

#23
20180245178
2018-08-30

System and Method for Recovering Catalytic Precious Metal from Aqueous Galvanic Processing Solution

#24
20170349970
2017-12-07

Process for removing precious metal from precious metal-containing catalyst form bodies

#25
20170253947
2017-09-07

Method of selective extraction of platinoids, from a support containing same, with an extraction medium consisting of a supercritical fluid and an organic ligand

#26
20170145542
2017-05-25

Method for platinum group metals recovery from spent catalysts

#27
20160346816
2016-12-01

Safe unloading and disposal of ionic liquid catalyst contaminated spent solids

#28
20160297742
2016-10-13

Use of metal scavengers for removal of ruthenium residues

#29
20160289792
2016-10-06

COMPOSITION OF A FILTER CAKE FOR PRECIOUS METALS RECOVERY

#30
20160243463
2016-08-25

System and method for removing transition metals from solution

#31
20160115567
2016-04-28

Metallurgical extraction technique to recover platinum group metals from a filter cake

#32
20160115566
2016-04-28

Process for preparing a spent catalyst for precious metals recovery

#33
20160102384
2016-04-14

Method of recovering acid and platinum group metal from leaching solution of spent catalyst

#34
20160053343
2016-02-25

Method for concentrating metals from scrap containing metal

#35
20160032472
2016-02-04

Method for recovering platinum group metals from catalytic structures

#36
20150218671
2015-08-06

METHOD FOR RECOVERING PRECIOUS METAL FROM METAL CARRIER CATALYST

#37
20140373682
2014-12-25

Method for recovering ruthenium from spent ruthenium-based catalyst carried on aluminum oxide

#38
20140369905
2014-12-18

Method for preparing solid ruthenium nitrosyl nitrate

#39
20130283978
2013-10-31

Composition for collecting metal component

#40
20120272791
2012-11-01

Process of precious metal recovery and color removal from an organosilicon product-containing liquid reaction medium

#41
20120211439
2012-08-23

Scavenger supports and the use thereof in a process for the extraction of metals

#42
20110286898
2011-11-24

Process for recovering ruthenium from used ruthenium oxide-comprising catalysts

#43
20110192255
2011-08-11

COMPOSITION FOR COLLECTING METAL COMPONENT

#44
20110028306
2011-02-03

PROCESS FOR THE RECOVERY OF PRECIOUS METALS FROM USED AND/OR DEFECTIVE CATALYTIC CARRIERS

#45
20100288079
2010-11-18

Method for recovering catalytic elements from fuel cell membrane electrode assemblies

#46
20100224029
2010-09-09

Method for separation and recovery of noble metals

#47
20100206134
2010-08-19

Method for recovering metals from a spent catalyst composition

#48
20100065436
2010-03-18

METHOD OF EXTRACTING PLATINUM GROUP METALS FROM WASTE CATALYSTS THROUGH ELECTROCHEMICAL PROCESS

#49
20090314135
2009-12-24

Cleaning of oil-contaminated solids

#50
20090301260
2009-12-10

Efficient process for previous metal recovery from cell membrane electrode assemblies

#51
20090288518
2009-11-26

Recycling process for moulded catalyst bodies

#52
20090277305
2009-11-12

Recovery of rhenium

#53
20090257931
2009-10-15

METHOD OF RECOVERING NOBLE METALS AND RECOVERING SYSTEM FOR NOBLE METALS

#54
20090241736
2009-10-01

Method for recovering metal from ore

#55
20090226352
2009-09-10

METHOD FOR RECOVERING NOBLE METAL

#56
20090223325
2009-09-10

Metal recovery

#57
20090178513
2009-07-16

Extractants for palladium and method of rapidly separating and recovering palladium using the same

#58
20090158891
2009-06-25

PROCESS FOR RECOVERING PLATINUM GROUP METALS, RHENIUM AND GOLD

#59
20090148361
2009-06-11

Processes and systems for recovering catalyst promoter from catalyst substrates

#60
20090114600
2009-05-07

Metal compound removal

#61
20090049954
2009-02-26

Simplified process for leaching precious metals from fuel cell membrane electrode assemblies

#62
20090038441
2009-02-12

Catalyst reprocessing

#63
20090023604
2009-01-22

Scavenger supports and the use thereof in a process for the extraction of metals

#64
20080293836
2008-11-27

Method for the recovery of ruthenium from used ruthenium oxide-containing catalysts

#65
20080287282
2008-11-20

PROCESS FOR RECOVERY OF RUTHENIUM FROM A RUTHENIUM-CONTAINING SUPPORTED CATALYST MATERIAL

#66
20080282843
2008-11-20

Process for Removal of the Catalytic Coating Material from Spent, Defective or Unused Metal Support Catalytic Converters

#67
20080282842
2008-11-20

Process for removal of the catalytic coating material from spent, defective or unused metal support catalytic converters

#68
20080115627
2008-05-22

Metal Extraction In Liquid Or Supercritical-Fluid Solvents

#69
20080110296
2008-05-15

Process for recovering platinum group metals, rhenium and gold

#70
20080064771
2008-03-13

Process for recycling fuel cell components containing precious metals

#71
20070202025
2007-08-30

Method For Recovery Of Palladium

#72
20070183951
2007-08-09

Method for recovering noble metals from metallic carrier catalytic device

#73
20070172404
2007-07-26

Extractant for palladium and method for separation and recovery of palladium

#74
20070104628
2007-05-10

Apparatus and method for recovering rare-earth and noble metals from an article

#75
20060252938
2006-11-09

Process for the separation of palladium catalyst from crude reaction mixtures of aryl acetic acids obtained by carbonylation

#76
20060151399
2006-07-13

Metal compound removal

#77
20060147791
2006-07-06

Platinum recovery from fuel cell stacks

#78
20060084572
2006-04-20

Recovering catalyst and carrier by exfoliating overcoat layer on the surface of a catalyst layer

#79
20060037438
2006-02-23

Process for extraction of metals from ores or industrial materials

#80
20050211630
2005-09-29

Recycling of used perfluorosulfonic acid membranes

#81
20050081683
2005-04-21

Process for extracting platinum group metals