ClassID:

119329

C22B11/08 - CPC Classification

Classification description:

Obtaining noble metals by cyaniding

Recent Application in this class:
#1
20250137092
2025-05-01

BLANKING AGENT FOR PRECIOUS METAL RECOVERY IN REFRACTORY MATERIALS

#2
20250066872
2025-02-27

HEAPS FOR HEAP LEACHING

#3
20250043389
2025-02-06

RECOVERING GOLD

#4
20240002977
2024-01-04

PROCESS FOR GOLD AND/OR PLATINUM GROUP METALS HEAP LEACHING WITH LIME

#5
20230323504
2023-10-12

SYSTEM FOR OXYGEN DIFFUSION IN TANKS FOR LEACHING AND DESTRUCTION OF CYANIDE CRYOMINING

#6
20230279519
2023-09-07

COMPOSITION COMPRISING NON-IONIC SURFACTANT AND POLYETHER-MODIFIED SILOXANE AND ITS USE IN CYANIDE-LEACHING OF METAL ORES

#7
20230167525
2023-06-01

METHODS FOR RECOVERING A PRECIOUS METAL FROM REFRACTORY ORES BY NEAR-AMBIENT ALKALINE PRE-OXIDATION AND COMPLEXATION

#8
20230110976
2023-04-13

COMPOSITIONS AND METHODS FOR IMPROVED PRECIOUS METAL EXTRACTION FROM ORE

#9
20220349024
2022-11-03

PROCESSING GOLD-CONTAINING ORES

#10
20220267877
2022-08-25

Co-processing of copper sulphide concentrate with nickel laterite ore

#11
20220205062
2022-06-30

USING SYNTHETIC LIXIVIANT BIOLOGY FOR THE RECOVERY OF PRECIOUS AND TOXIC METALS FROM ANTHROPOGENIC SOURCES

#12
20220119913
2022-04-21

METHOD FOR RECOVERING COPPER, MOLYBDENUM, AND PRECIOUS METALS FROM MINERAL ORES VIA PRESSURE OXIDATION

#13
20220074021
2022-03-10

Method for Extracting Gold and/or Silver and/or at Least One Platinum Metal

#14
20210252477
2021-08-19

Molecularly imprinted polymer beads for extraction of metals and uses thereof

#15
20210130925
2021-05-06

Metal recovery method using adsorbent

#16
20200283871
2020-09-10

Method of separating mercury from an ore leachate

#17
20200224291
2020-07-16

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

#18
20200190624
2020-06-18

Process for leaching a mineral particulate material

#19
20200002783
2020-01-02

Process for recovering precious metals from clay-containing ores

#20
20190388850
2019-12-26

Fluid treatment apparatus and process

#21
20180298466
2018-10-18

Low acidity, low solids pressure oxidative leaching of sulphidic feeds

#22
20180223389
2018-08-09

Measurement apparatus for measuring a volume of a desired solid component in a sample volume of a solid-liquid slurry

#23
20180214845
2018-08-02

Molecularly imprinted polymer beads for extraction of metals and uses thereof

#24
20180187286
2018-07-05

Process for recovering precious metals from clay-containing ores

#25
20180002780
2018-01-04

Multilayer films and related uses thereof

#26
20170356066
2017-12-14

Method for recovering gold from activated carbon

#27
20170335429
2017-11-23

Method of separating mercury from an ore leachate

#28
20170291156
2017-10-12

Mixing apparatus and its use

#29
20170152583
2017-06-01

Method of recovering base metals from low grade ores and residues

#30
20170137914
2017-05-18

MERCURY REMOVAL

#31
20170081202
2017-03-23

Method for recovering cyanide from a barren solution

#32
20160298209
2016-10-13

Leach aid for metal recovery

#33
20160271573
2016-09-22

Fluid treatment apparatus and process

#34
20160208361
2016-07-21

Gold recovery from carbon

#35
20160115567
2016-04-28

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

#36
20160102375
2016-04-14

Method and plant for producing iron from roasted pyrites

#37
20160083816
2016-03-24

Method for recovering gold from refractory ore

#38
20160032420
2016-02-04

METHODS FOR TREATING CARBON MATERIALS INCLUDING CARBONACEOUS ORES

#39
20160024613
2016-01-28

Use of cationic surfactants in the cyanidation of refractory carbonaceous ores for recovery of metals

#40
20150275329
2015-10-01

Pre-treatment for conventional cyanidation for silver recovering from manganese-argentiferous ores containing occluded silver

#41
20150125365
2015-05-07

Cyanide-leaching process

#42
20120090433
2012-04-19

ENHANCED RECOVERY OF GOLD

#43
20120067170
2012-03-22

EXTRACTION OF GOLD FROM CATHODE ASSOCIATED GOLD CONCENTRATES

#44
20120067169
2012-03-22

METHOD FOR PROCESSING PRECIOUS METAL SOURCE MATERIALS

#45
20110314967
2011-12-29

Improving the recovery of precious metals from recalcitrant refractory ore

#46
20110259148
2011-10-27

Method for aqueous gold thiosulfate extraction using copper-cyanide pretreated carbon adsorption

#47
20100307977
2010-12-09

REMOVAL OF CYANIDE FROM AQUEOUS STREAMS

#48
20100199808
2010-08-12

Method for recovering metal values from refractory sulfide ore

#49
20100116091
2010-05-13

System and Method for Leaching a Metal from a Base Mineral Rock

#50
20090297412
2009-12-03

Solid/liquid reaction process and vessel incorporating buoyant covers

#51
20090293680
2009-12-03

Processing of Metal Values from Concentrates

#52
20090293679
2009-12-03

Extraction process for metals like gold and platinum including fine grinding, pulping and oxygenating

#53
20090288521
2009-11-26

Precious metal recovery using thiocyanate lixiviant

#54
20090277303
2009-11-12

SEPARATION AND RECOVERY OF PRECIOUS METALS USING POLYMER MATERIALS

#55
20090235784
2009-09-24

PRE-TREATMENT OF FEED TO NON-STIRRED SURFACE BIOREACTOR

#56
20090183599
2009-07-23

MINERAL EXTRACTION SYSTEM AND PROCESS

#57
20090158893
2009-06-25

MICROBIAL PRE-TREATMENT OF DOUBLE REFRACTORY GOLD ORES

#58
20090074608
2009-03-19

Process for mercury control during pressure oxidation

#59
20090074607
2009-03-19

Process for recovering gold and silver from refractory ores

#60
20090071296
2009-03-19

Process for controlling acid in sulfide pressure oxidation processes

#61
20090071295
2009-03-19

Method to improve recovery of gold from double refractory gold ores

#62
20090039315
2009-02-12

Aqueous solutions containing metal cyanide for cyanide leaching for the winning of gold and silver

#63
20090035833
2009-02-05

Method for recovering metal values from refractory sulfide ore

#64
20090031862
2009-02-05

RECOVERY PROCESS FOR PRECIOUS METALS

#65
20090030256
2009-01-29

Electrochemical removal of dissociable cyanides

#66
20090019970
2009-01-22

PROCESS FOR RECOVERY OF METAL VALUES FROM MATERIALS CONTAINING ARSENIC AND/OR ANTIMONY

#67
20090004728
2009-01-01

Method of biotreatment for solid materials in a nonstirred surface bioreactor

#68
20080317649
2008-12-25

Process for recausticizing cyanide leach solutions

#69
20080311647
2008-12-18

Method of biotreating a solid material comprising an organic compound

#70
20080286180
2008-11-20

Process for gold and silver recovery from a sulphide concentrate

#71
20080247925
2008-10-09

SEPARATION AND RECOVERY OF PRECIOUS METALS USING POLYMER MATERIALS

#72
20080203809
2008-08-28

Producing Calcium Cyanide At A Mine Site Using Easily Transportable Starting Materials

#73
20080196546
2008-08-21

Use of non-ionic surfactants in the production of metals

#74
20080184849
2008-08-07

Method and apparatus for the recovery of refractory mineral ores

#75
20080135460
2008-06-12

Separation apparatus

#76
20080069723
2008-03-20

METHOD FOR OXIDIZING CARBONACEOUS ORES TO FACILITATE PRECIOUS METAL RECOVERY

#77
20080066578
2008-03-20

Precious metal recovery using thiocyanate lixiviant

#78
20080066577
2008-03-20

Precious metal recovery using thiocyanate lixiviant

#79
20080025890
2008-01-31

Use of surfactants in the production of metal

#80
20070292326
2007-12-20

Process for reduced alkali consumption in the recovery of silver

#81
20070107550
2007-05-17

Method for recovering metal values from concentrates of sulfide minerals

#82
20070098628
2007-05-03

Methods and apparatus for processing mixtures of liquids and solids

#83
20070039420
2007-02-22

Method for improving metals recovery using high temperature pressure leaching

#84
20070039419
2007-02-22

Treatment of reclaim water for use in metals recovery

#85
20070022843
2007-02-01

Recovery of platinum group metals

#86
20070014709
2007-01-18

Recovering metals from sulfidic materials

#87
20060185475
2006-08-24

Reducing cyanide consumption in gold recovery from finely ground sulphide ores and concentrates

#88
20050155458
2005-07-21

Method for improving metals recovery using high temperature pressure leaching

#89
20050121390
2005-06-09

Separation and recovery of precious metals using polymer materials

#90
20050112741
2005-05-26

Method of biotreatment for solid materials in a nonstirred surface bioreactor

#91
20050081683
2005-04-21

Process for extracting platinum group metals

#92
20050040108
2005-02-24

Metal ion recovery

#93
20050016324
2005-01-27

Electromagnetic pyrolysis metallurgy

#94
20050005737
2005-01-13

Method for recovering metal values from concentrates of sulfide minerals

#95
15262387
2017-07-04

Rotary interstage screen apparatus