C21C1/04 - CPC Classification Index

ClassID:

118801 ⎘

C21C1/04 - CPC Classification

Classification description:

Refining of pig-iron; Cast iron Removing impurities other than carbon, phosphorus or sulfur

Recent Application in this class:

20260071290

2026-03-12

IRON PRODUCTION ADDITIVE

20240167112

2024-05-23

METHOD FOR OPERATING CONVERTER AND METHOD FOR PRODUCING MOLTEN STEEL

20240068060

2024-02-29

REFINING METHOD OF MOLTEN IRON AND MANUFACTURING METHOD OF MOLTEN STEEL USING SAME

20230399710

2023-12-14

PROCESSES FOR PURIFYING IRON-BEARING MATERIALS

20200239973

2020-07-30

Method of dechromizing molten iron and method of manufacturing phosphate fertilizer raw material

20190230746

2019-07-25

Method for ironmaking by smelting reduction in stir-generated vortex

20170342515

2017-11-30

METHODS FOR MANGANESE REMOVAL OF CAST IRON

20150044087

2015-02-12

METHOD FOR PRODUCING MOLD STEEL, MOLD STEEL, METHOD OF PRODUCING PRE-HARDENED MOLD MATERIAL, AND PRE-HARDENED MOLD MATERIAL

20150000470

2015-01-01

Method for preliminary treatment of molten iron

#10

20140069235

2014-03-13

Method of refining molten iron

#11

20130197885

2013-08-01

Method for predicting degree of contamination of molten steel during ladle exchange

#12

20130195712

2013-08-01

METHOD FOR REMOVING IMPURITIES IN MOLTEN CAST IRON, AND CAST IRON RAW MATERIAL

#13

20120260773

2012-10-18

Operation method for mechanically stirring chrome-containing molten iron

#14

20100180726

2010-07-22

Anti-oxidative agent for molten metal, method of preparing and method of using thereof

#15

20090031860

2009-02-05

Production of stainless steel of AISI 4xx grade ferritic steel in an AOD converter