ClassID:

120909

C25C3/22 - CPC Classification

Classification description:

Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium Collecting emitted gases

Recent Application in this class:
#1
20260085887
2026-03-26

Waste Heat Recovery and Utilization System and method

#2
20250382718
2025-12-18

SYSTEMS AND METHODS FOR FEEDING SOLID MATERIAL AND A GAS INTO AN ELECTROLYTIC CELL

#3
20250270724
2025-08-28

A PROCESS AND APPARATUS FOR PRODUCTION OF ALUMINIUM, AND A PROCESS AND APPARATUS FOR PRODUCTION OF AN ALUMINIUM CHLORIDE CONTAINING FEEDSTOCK

#4
20250084553
2025-03-13

Method And System For Molten Oxide Electrolysis

#5
20240351898
2024-10-24

REDUCTION CELL FOR PRODUCING ALUMINUM

#6
20240337038
2024-10-10

INTEGRATED SYSTEMS EMPLOYING CARBON OXIDE ELECTROLYSIS IN ALUMINUM PRODUCTION

#7
20240084468
2024-03-14

SYSTEMS AND METHODS FOR FEEDING SOLID MATERIAL AND A GAS INTO AN ELECTROLYTIC CELL

#8
20230098064
2023-03-30

Process for Selective Chlorination of Aluminous Ores for the Preparation of Aluminum

#9
20220349078
2022-11-03

PROCESS AND INTEGRATED PLANT FOR THE TREATMENT OF THE CARBON OXIDES FORMED IN THE PRODUCTION OF ALUMINUM

#10
20220235479
2022-07-28

METHOD AND SYSTEM FOR USING THE CARBON OXIDE ARISING IN THE PRODUCTION OF ALUMINIUM

#11
20220186393
2022-06-16

SYSTEM AND METHOD FOR COLLECTING AND PRE-TREATING PROCESS GASES GENERATED BY AN ELECTROLYSIS CELL

#12
20220144658
2022-05-12

METHOD FOR PREPARING ALUMINUM FLUORIDE AND ALUMINUM OXIDE BY DECARBURIZATION AND SODIUM REMOVAL OF ALUMINUM ELECTROLYSIS CARBON RESIDUE

#13
20210164119
2021-06-03

Apparatus and method for controlled alumina supply

#14
20200216971
2020-07-09

SYSTEMS AND METHODS FOR CONTROLLING HEAT LOSS FROM AN ELECTROLYTIC CELL

#15
20190360114
2019-11-28

Systems and methods for controlling heat loss from an electrolytic cell

#16
20180155843
2018-06-07

Integrated gas treatment

#17
20170362726
2017-12-21

COVER FOR AN ELECTROLYSIS CELL FOR PROCUDING ALUMINIUM

#18
20170260062
2017-09-14

METHODS FOR PURIFYING ALUMINIUM IONS

#19
20170121833
2017-05-04

Integrated gas treatment

#20
20160362806
2016-12-15

Method of ventilating an aluminium production electrolytic cell

#21
20160326661
2016-11-10

Electrolysis tank comprising an anode assembly contained in a containment enclosure

#22
20160258073
2016-09-08

Pot heat exchanger

#23
20160068978
2016-03-10

ALUMINIUM ELECTROLYSIS CELL COMPRISING SIDEWALL TEMPERATURE CONTROL SYSTEM

#24
20150060295
2015-03-05

ELECTROCHEMICAL CELL FOR ALUMINUM PRODUCTION USING CARBON MONOXIDE

#25
20140283687
2014-09-25

Process and device for improving the capture of SO2 in electrolytic cell gases

#26
20140069625
2014-03-13

Method and equipment for heat recovery

#27
20130333565
2013-12-19

Device and a method of cleaning an effluent gas from an aluminium production electrolytic cell

#28
20130327215
2013-12-12

Compact air quality control system compartment for aluminium production plant

#29
20130292258
2013-11-07

Recycled pot gas pot distribution

#30
20130213494
2013-08-22

Pot heat exchanger

#31
20130206005
2013-08-15

Gas cleaning unit and method for cleaning gas

#32
20130199939
2013-08-08

Raw gas collection system

#33
20130048508
2013-02-28

Method of ventilating an aluminum production electrolytic cell

#34
20120246923
2012-10-04

Process for changing a spent anode

#35
20120228127
2012-09-13

SYSTEMS, METHOD AND APPARATUS FOR REDUCING IMPURITIES IN ELECTROLYSIS CELLS

#36
20110268639
2011-11-03

METHOD AND A DEVICE FOR VERIFYING AND CONTROLLING THE REMOVAL OF HYDROGEN FLUORIDE FROM A PROCESS GAS

#37
20110067999
2011-03-24

400kA HIGH ENERGY EFFICIENCY REDUCTION POT

#38
20100275732
2010-11-04

Systems, method and apparatus for reducing impurities in electrolysis cells

#39
20100101760
2010-04-29

Flue gas cooling and cleaning system

#40
20100044217
2010-02-25

Apparatus and method for the removal of gasses

#41
20090159434
2009-06-25

SYSTEM AND PROCESS FOR COLLECTING EFFLUENTS FROM AN ELECTROLYTIC CELL

#42
20080302520
2008-12-11

Heat Exchanger

#43
20080099185
2008-05-01

Method and Equipment for Heat Recovery

#44
20080097135
2008-04-24

Electrode containers and associated methods

#45
20080050298
2008-02-28

Method For Improving the HF Capture Efficiency of Dry Scrubbers

#46
20070240996
2007-10-18

Apparatus for collection and removal of gases from an aluminum reduction cell

#47
20070144895
2007-06-28

Apparatus for collection and removal of gases from an aluminum reduction cell

#48
20070045104
2007-03-01

Method for reducing cell voltage and increasing cell stability by in-situ formation of slots in a Soderberg anode

#49
20060289290
2006-12-28

Electrolytic cell effluent treatment method and device for the production of aluminium

#50
20050194249
2005-09-08

Electrolytic cell leak limiter