C22B21/00 - CPC Classification Index

ClassID:

119410 ⎘

C22B21/00 - CPC Classification

Classification description:

Obtaining aluminium

Sub-classes:

C22B21/0007 » {Preliminary treatment of ores or scrap or any other metal source } 61
C22B21/0015 » {by wet processes } 61
C22B21/0038 » {by other processes } 10
C22B21/0084 » {melting and handling molten aluminium } 77
C22B21/02 » with reducing 44
C22B21/04 » with alkali metals {earth alkali metals included} 17
C22B21/06 » refining 76

Recent Application in this class:

20250327150

2025-10-23

ENERGY EFFICIENT SALT-FREE RECOVERY OF METAL FROM DROSS

20240229189

2024-07-11

METHOD FOR RECOVERY OF METAL-CONTAINING MATERIAL FROM A COMPOSITE MATERIAL

20240132994

2024-04-25

METHOD FOR RECOVERY OF METAL-CONTAINING MATERIAL FROM A COMPOSITE MATERIAL

20230357888

2023-11-09

ENERGY EFFICIENT SALT-FREE RECOVERY OF METAL FROM DROSS

20220056557

2022-02-24

METHOD FOR RECOVERY OF METAL-CONTAINING MATERIAL FROM A COMPOSITE MATERIAL

20220026147

2022-01-27

Furnace controller and method of operating a furnace

20200332392

2020-10-22

ENERGY EFFICIENT SALT-FREE RECOVERY OF METAL FROM DROSS

20200044295

2020-02-06

Lithium ion battery scrap treatment method

20180369827

2018-12-27

System for melting aluminum and recycling black dross

#10

20180274059

2018-09-27

Method for recovery of metal-containing material from a composite material

#11

20180010209

2018-01-11

Method for production of a composite material using excess oxidant

#12

20170073244

2017-03-16

Method for processing packing material to recover aluminium

#13

20160355907

2016-12-08

Method for crushing hard tungsten carbide scraps

#14

20160045841

2016-02-18

NEW AND IMPROVED SYSTEM FOR PROCESSING VARIOUS CHEMICALS AND MATERIALS

#15

20140091042

2014-04-03

Washing method of goethite-containing red mud

#16

20130186236

2013-07-25

Energy Efficient Salt-Free Recovery Of Metal From Dross

#17

20130048045

2013-02-28

HEAT RECOVERY SYSTEM FOR PYROMETALLURGICAL VESSEL USING THERMOELECTRIC/THERMOMAGNETIC DEVICES

#18

20110154949

2011-06-30

Method for operating a furnace and device for carrying out the method