C21C7/0087 - CPC Classification Index

#1

20240401161

2024-12-05

Method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma

#2

20240309479

2024-09-19

HEAT RECOVERY ON STEEL SLAG

#3

20240150860

2024-05-09

PROCESS FOR SMELTING HIGH-SPEED STEEL BY USING INTERMEDIATE FREQUENCY FURNACE-LF FURNACE-VD

#4

20240141462

2024-05-02

Method for smelting low-phosphorus high-manganese steel based on reduction dephosphorization of ferromanganese

#5

20230357075

2023-11-09

FLUORITE SYNTHETIC STONES AND METHOD OF MAKING FLUORITE SYNTHETIC STONES

#6

20230257839

2023-08-17

A method of casting a steel semi-product with high titanium content

#7

20230235417

2023-07-27

METHOD AND APPARATUS FOR TREATING THE MATERIAL EXITING FROM A LADLE FURNACE

#8

20230220504

2023-07-13

ULTRA-HIGH PHOSPHORUS MOLTEN IRON LOW-COST SMELTING METHOD FOR POLAR STEEL

#9

20210214813

2021-07-15

Slag discharging method in process of producing ultra-low phosphorus steel and method for producing ultra-low phosphorus steel

#10

20210024421

2021-01-28

METHOD FOR REFINING METAL MELTS OR SLAGS

#11

20190309380

2019-10-10

MOLTEN STEEL TREATMENT DEVICE AND MOLTEN STEEL TREATMENT METHOD USING SAME

#12

20190078170

2019-03-14

METHOD FOR ELUTING CALCIUM FROM STEEL SLAG AND METHOD FOR RECOVERING CALCIUM FROM STEEL SLAG

#13

20190071356

2019-03-07

REACTIVE MATERIAL BASED ON CALCIUM ALUMINATE AND CARBON, ITS PROCESS OF PREPARATION AND ITS USES FOR REFINING METAL MELTS OR SLAGS

#14

20180363076

2018-12-20

Slag Conditioner for Electric Arc Furnace Steel Production

#15

20180057918

2018-03-01

Cr-Mn-N austenitic heat-resistant steel and a method for manufacturing the same

#16

20180009029

2018-01-11

Melting pot, and float salvaging apparatus and method for melting pot

#17

20170275714

2017-09-28

MIXTURE, USE OF THIS MIXTURE, AND METHOD FOR CONDITIONING A SLAG LOCATED ON A METAL MELT IN A METALLURGICAL VESSEL IN IRON AND STEEL METALLURGY

#18

20170247773

2017-08-31

Molten steel desulfurization method, molten steel secondary refining method, and molten steel manufacturing method

#19

20170218469

2017-08-03

Method for desulfurizing

#20

20160376673

2016-12-29

Asbestos processing

#21

20160376672

2016-12-29

MIXTURE, USE OF THIS MIXTURE AND PROCESS FOR CONDITIONING A SLAG LOCATED ON A METAL MELT IN A METALLURGICAL VESSEL IN IRON AND STEEL METALLURGY

#22

20160168655

2016-06-16

Method for manufacturing duplex stainless steel sheet having reduced inclusions

#23

20150344799

2015-12-03

Composite briquette for steelmaking or ironmaking furnace charge

#24

20150240321

2015-08-27

Advanced technology for iron-chrome alloys production and related plant

#25

20150176900

2015-06-25

HYBRID OXY-COAL BURNER FOR EAF STEELMAKING

#26

20150135896

2015-05-21

Method of reduction processing of steel-making slag

#27

20150027656

2015-01-29

Method for preparing low-cost clean steel

#28

20140352496

2014-12-04

BRIQUETTE FOR PRODUCING A FOAMED SLAG EFFECT IN EAF TECHNOLOGY IN STAINLESS STEEL PRODUCTION

#29

20140345425

2014-11-27

Starting a smelting process

#30

20140331820

2014-11-13

Method for reducing slag

#31

20140291901

2014-10-02

Reduction processing apparatus for steel-making slag and reduction processing system for steel-making slag

#32

20140247856

2014-09-04

Slag-supplying container for use in electric furnace for reduction processing of steel-making slag

#33

20140224069

2014-08-14

Method for the production and the purification of molten calcium aluminate using contaminated aluminum dross residue

#34

20140096643

2014-04-10

Molten steel desulfurization method, molten steel secondary refining method, and molten steel manufacturing method

#35

20130019715

2013-01-24

COMPOSITION FOR REDUCING THE OXYGEN POTENTIAL OF SLAG

#36

20130000446

2013-01-03

METHOD FOR PRODUCING FOAMED SLAG ON HIGH-CHROMIUM MELTS IN AN ELECTRIC FURNACE

#37

20120138253

2012-06-07

ADVANCED TECHNOLOGY FOR IRON-CHROME ALLOYS PRODUCTION AND RELATED PLANT

#38

20120048065

2012-03-01

Process for slag foaming a non-stainless steel melt in an electric arc furnace

#39

20110220248

2011-09-15

POROUS MAGNESIA CLINKER, MANUFACTURING METHOD AND USE THEREOF AS FLUX FOR TREATING STEELMAKING SLAG

#40

20110197708

2011-08-18

Process for producing foamed slag

#41

20110094336

2011-04-28

Method for producing a steel melt containing up to 30% manganese

#42

20110088514

2011-04-21

Process for producing a foamed slag on austenitic stainless melts in an electric arc furnace

#43

20100180726

2010-07-22

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

#44

20100180723

2010-07-22

Method for manufacturing molten iron

#45

20100089202

2010-04-15

Method for the reduction of a slag having a high degree of chromium in an electric arc furnace

#46

20090274608

2009-11-05

Calcium-silicate based slag for treatment of molten silicon

#47

20090274574

2009-11-05

Forging steel and its manufacturing method, and forged parts

#48

20090101248

2009-04-23

Grain-oriented electrical steel sheet and process for producing the same

#49

20080156145

2008-07-03

Calcium-silicate based slag for treatment of molten silicon

#50

20070266824

2007-11-22

Using a slag conditioner to beneficiate bag house dust from a steel making furnace

#51

20070084306

2007-04-19

Composition for reducing steelmaking slag

#52

20060260435

2006-11-23

Method for producing foamed slag on high-chromium melts in an electric furnace

#53

20060196308

2006-09-07

Method for recovering metallic elements, especially metallic chromium, from slag containing metal oxides in an electric-arc furnace

#54

20050172757

2005-08-11

Calcium-silicate based slag for treatment of molten steel

#55

20050166710

2005-08-04

Method for treating alloyed carbonic iron smelts used for the production of steel

#56

17845175

2023-02-07

Process for modifying steel slag through acidification and carbonization coupling