C22B11/06 - CPC Classification Index

#1

20250197964

2025-06-19

PRECIOUS METALS RECOVERY

#2

20240376567

2024-11-14

PRECIOUS METALS RECOVERY

#3

20230416872

2023-12-28

PRECIOUS METALS RECOVERY

#4

20230175098

2023-06-08

METAL REFINEMENT

#5

20220251679

2022-08-11

METAL RECOVERY USING MOLTEN SALT AND RELATED SYSTEMS

#6

20220213575

2022-07-07

Metal refinement

#7

20220056555

2022-02-24

Metal refinement

#8

20210324496

2021-10-21

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

#9

20200332391

2020-10-22

Method for gold recovery and extraction from electronic waste or gold containing minerals, ores and sands

#10

20200224291

2020-07-16

Method for extracting base and precious metals by a pre-treatment that leads to solubilisation of the refractory matrices thereof

#11

20200172993

2020-06-04

METHOD AND A SYSTEM FOR GOLD RECOVERY FROM HALOGEN EXTRACTION TREATMENT

#12

20200063237

2020-02-27

Method and apparatus for extracting high-purity gold from ore

#13

20200032370

2020-01-30

Apparatus for platinum group metals recovery from spent catalysts

#14

20190360069

2019-11-28

Ionic liquid solvents of perhalide type for metals and metal compounds

#15

20190284659

2019-09-19

Precious metals recovery

#16

20190256948

2019-08-22

Method for platinum group metals recovery from spent catalysts

#17

20180223390

2018-08-09

Method of producing platinum colloid and platinum colloid produced thereby

#18

20180021743

2018-01-25

Process for the recovery of gold from anode slimes

#19

20170349970

2017-12-07

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

#20

20170247777

2017-08-31

Process for recovering gold

#21

20170218478

2017-08-03

GOLD RECOVERY

#22

20170145542

2017-05-25

Method for platinum group metals recovery from spent catalysts

#23

20160237524

2016-08-18

Precious metals recovery

#24

20160145714

2016-05-26

Treatment process for extraction of precious, base and rare elements

#25

20160083817

2016-03-24

Method and plant for processing roasted pyrites

#26

20160068927

2016-03-10

Method of preparing a gold-containing solution and process arrangement for recovering gold and silver

#27

20150344990

2015-12-03

Hydrometallurgical treatment process for extraction of metals from concentrates

#28

20150259765

2015-09-17

Closed loop method for gold and silver extraction by halogens

#29

20150251145

2015-09-10

Process for the recovery of gold from anode slimes

#30

20150114182

2015-04-30

Gold recovery

#31

20140377151

2014-12-25

Process for recovery of cobalt, ruthenium, and aluminum from spent catalyst

#32

20140373682

2014-12-25

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

#33

20140109725

2014-04-24

Process for the recovery of gold from anode slimes

#34

20130177487

2013-07-11

Upgrading of precious metals concentrates and residues

#35

20130089477

2013-04-11

Method and apparatus for recovering rare metal

#36

20130074655

2013-03-28

Method and a system for gold extraction with halogens

#37

20120090433

2012-04-19

ENHANCED RECOVERY OF GOLD

#38

20120090430

2012-04-19

Ionic liquid solvents of perhalide type for metals and metal compounds

#39

20120067170

2012-03-22

EXTRACTION OF GOLD FROM CATHODE ASSOCIATED GOLD CONCENTRATES

#40

20120067169

2012-03-22

METHOD FOR PROCESSING PRECIOUS METAL SOURCE MATERIALS

#41

20120058043

2012-03-08

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

#42

20110174111

2011-07-21

Method of mineral raw materials processing

#43

20110113927

2011-05-19

Separation reagent of platinum group metal, method for separating and recovering platinum group metal, and amide-containing tertiary amine compound

#44

20110088512

2011-04-21

Method of precious metal recovery

#45

20110083531

2011-04-14

SELECTIVE GOLD EXTRACTION FROM COPPER ANODE SLIME WITH AN ALCOHOL

#46

20100257978

2010-10-14

Process for recovering platinum group metals from ores and concentrates

#47

20100224029

2010-09-09

Method for separation and recovery of noble metals

#48

20100213133

2010-08-26

Enrichment process for a PGM-metals containing stream

#49

20100180730

2010-07-22

Method of separating rhodium from platinum and/or palladium

#50

20100095807

2010-04-22

SEPARATION REAGENT OF PLATINUM GROUP METAL, METHOD FOR SEPARATING AND RECOVERING PLATINUM GROUP METAL, AND AMIDE-CONTAINING TERTIARY AMINE COMPOUND

#51

20100080744

2010-04-01

PROCESS FOR ISOLATING METALLIC RUTHENIUM OR RUTHENIUM COMPOUNDS FROM RUTHENIUM-CONTAINING SOLIDS

#52

20100065436

2010-03-18

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

#53

20100043598

2010-02-25

Purification of PGM species from mixtures thereof

#54

20090315232

2009-12-24

Dissolution apparatus for noble metals

#55

20090241736

2009-10-01

Method for recovering metal from ore

#56

20090241735

2009-10-01

Process of leaching gold

#57

20090191106

2009-07-30

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

#58

20090007729

2009-01-08

Method of precious metal recovery

#59

20080287282

2008-11-20

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

#60

20080236337

2008-10-02

Method for recovering rhodium

#61

20080083300

2008-04-10

Extraction process

#62

20080078269

2008-04-03

Method for leaching gold

#63

20070245856

2007-10-25

Method for Recovering Gold

#64

20070158242

2007-07-12

System and method for treating shredder residues and utilizing a produced fiber fraction

#65

20070131058

2007-06-14

Process for recovering platinum group metals from ores and concentrates

#66

20060219571

2006-10-05

Electrogenerated chlorine or chloride compound leaching and its apparatus

#67

20050160877

2005-07-28

Method for the recovery of gold

#68

17170678

2022-02-15

Metal recovery using molten salt and related systems

#69

15821304

2020-05-12

Strategic metal and mineral element ore processing using mixing and oxidant treatment