EP0714989A4 - PRODUCTION AND STEEL PROCESS USING A CONVERTER - Google Patents

PRODUCTION AND STEEL PROCESS USING A CONVERTER

Info

Publication number: EP0714989A4
Authority: EP; European Patent Office
Prior art keywords: converter; production; steel process; steel
Prior art date: 1993-06-30
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP94919835A

Other languages

German (de)

French (fr)

Other versions

EP0714989B1 (en

EP0714989A1 (en

Inventor

Masataka Yano

Yuji Ogawa

Masayuki Arai

Fumio Koizumi

Noriyuki Masumitsu

Hideaki Sasaki

Hiroshi Hirata

Yoshiaki Kusano

Hirobumi Maede

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Nippon Steel Corp

Original Assignee

Nippon Steel Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1993-06-30

Filing date

1994-06-30

Publication date

1997-06-25

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27519242&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0714989(A4) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1993-06-30 Priority claimed from JP16256493A external-priority patent/JP2958842B2/en

1993-12-24 Priority claimed from JP32908693A external-priority patent/JP2896838B2/en

1993-12-24 Priority claimed from JP32908893A external-priority patent/JP2958848B2/en

1994-02-02 Priority claimed from JP01102794A external-priority patent/JP3239197B2/en

1994-06-30 Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp

1996-06-05 Publication of EP0714989A1 publication Critical patent/EP0714989A1/en

1997-06-25 Publication of EP0714989A4 publication Critical patent/EP0714989A4/en

2000-03-22 Application granted granted Critical

2000-03-22 Publication of EP0714989B1 publication Critical patent/EP0714989B1/en

2014-06-30 Anticipated expiration legal-status Critical

Status Revoked legal-status Critical Current

Classifications

- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/34—Blowing through the bath
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/35—Blowing from above and through the bath
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or desulfurising
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/56—Manufacture of steel by other methods
- C21C5/567—Manufacture of steel by other methods operating in a continuous way
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/068—Decarburising
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0075—Regulation of the charge quantity
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0078—Regulation of the speed of the gas through the charge
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D27/00—Stirring devices for molten material
- F27D2027/002—Gas stirring

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Manufacturing & Machinery (AREA)
Carbon Steel Or Casting Steel Manufacturing (AREA)
Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

EP94919835A 1993-06-30 1994-06-30 Steel manufacturing method using converter dephosphorisation Revoked EP0714989B1 (en)

Applications Claiming Priority (16)

Application Number	Priority Date	Filing Date	Title
JP162564/93		1993-06-30
JP16256493		1993-06-30
JP16256493A JP2958842B2 (en)	1993-06-30	1993-06-30	Converter refining method
JP165790/93		1993-07-05
JP16579093		1993-07-05
JP16579093		1993-07-05
JP329086/93		1993-12-24
JP32908693		1993-12-24
JP32908693A JP2896838B2 (en)	1993-12-24	1993-12-24	Molten steel manufacturing method
JP329088/93		1993-12-24
JP32908893A JP2958848B2 (en)	1993-12-24	1993-12-24	Hot metal dephosphorization method
JP32908893		1993-12-24
JP01102794A JP3239197B2 (en)	1993-07-05	1994-02-02	Converter steelmaking method
JP11027/94		1994-02-02
JP1102794		1994-02-02
PCT/JP1994/001070 WO1995001458A1 (en)	1993-06-30	1994-06-30	Steel manufacturing method using converter

Publications (3)

Publication Number	Publication Date
EP0714989A1 EP0714989A1 (en)	1996-06-05
EP0714989A4 true EP0714989A4 (en)	1997-06-25
EP0714989B1 EP0714989B1 (en)	2000-03-22

Family

ID=27519242

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP94919835A Revoked EP0714989B1 (en)	1993-06-30	1994-06-30	Steel manufacturing method using converter dephosphorisation

Country Status (9)

Country	Link
EP (1)	EP0714989B1 (en)
KR (1)	KR0159180B1 (en)
CN (1)	CN1041843C (en)
AU (1)	AU680268B2 (en)
BR (1)	BR9406985A (en)
CA (1)	CA2166097C (en)
DE (1)	DE69423630T2 (en)
ES (1)	ES2143547T3 (en)
WO (1)	WO1995001458A1 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3940280B2 (en) *	2001-09-27	2007-07-04	新日本製鐵株式会社	How to remove hot metal
JP3854482B2 (en) *	2001-09-27	2006-12-06	新日本製鐵株式会社	Hot metal pretreatment method and refining method
DE10215828B4 (en) *	2002-04-10	2007-08-02	Sms Demag Ag	Method and device for producing stainless steel, in particular chromium- or chromium-nickel-containing stainless steel
DE10215839A1 (en) *	2002-04-10	2003-11-06	Sms Demag Ag	Method and device for producing carbon steels or stainless steels by refining phosphorus-rich pig iron in an electric arc furnace or in a converter vessel
EP1608652A1 (en) *	2003-03-31	2005-12-28	Vernalis (Cambridge) Limited	Pyrazolopyrimidine compounds and their use in medicine
EP1524322A3 (en) *	2003-10-15	2006-08-02	Milan Adelt	Method of liquid steel production with slag recycling in a converter, equipment to employ the method
KR100749023B1 (en) *	2006-05-26	2007-08-14	주식회사 포스코	How to refine the converter
CN101864508B (en) *	2010-07-02	2012-10-24	张觉灵	Steel making method of convertor with small slag quantity
CN102071277B (en) *	2010-12-23	2012-10-24	攀钢集团钢铁钒钛股份有限公司	Converter dephosphorizing and steelmaking method
CN102168160B (en) *	2011-03-08	2013-04-17	武汉钢铁(集团)公司	Converter steelmaking technology for directly reducing-alloying manganese ore
JP5979017B2 (en) *	2012-01-19	2016-08-24	Ｊｆｅスチール株式会社	Hot metal refining method
KR101701658B1 (en) *	2013-01-18	2017-02-01	제이에프이 스틸 가부시키가이샤	Method for pretreating molten iron
CN104451022B (en) *	2014-12-19	2016-03-16	山东钢铁股份有限公司	A kind of method reducing dephosphorization stove finishing slag all iron content
KR101660774B1 (en)	2015-07-09	2016-09-28	주식회사 포스코	The converter operation method
WO2017130837A1 (en) *	2016-01-28	2017-08-03	新日鐵住金株式会社	Slag removal method, slag production method, and structure for attenuating energy of falling slag
JP6573035B2 (en) *	2016-07-14	2019-09-11	日本製鉄株式会社	Method for estimating phosphorus concentration in molten steel and converter blowing control device
CN106282487B (en) *	2016-09-13	2019-03-29	北京北科中钢工程技术有限公司	A kind of pre-dephosporizing method for molten iron
JP6551626B2 (en) *	2017-05-25	2019-07-31	Ｊｆｅスチール株式会社	Method of melting high manganese steel
CN109097523B (en) *	2018-08-31	2019-12-24	钢铁研究总院	A double slag method smelting process
EP4212637A4 (en) *	2020-09-10	2024-02-28	JFE Steel Corporation	PROCESS FOR PRODUCING LOW PHOSPHORUS MOLTED IRON
CN114438276B (en) *	2022-02-11	2022-08-09	山东钢铁集团永锋临港有限公司	Method for shortening smelting period of converter
CN114647220A (en) *	2022-03-15	2022-06-21	山东钢铁集团永锋临港有限公司	Automatic control method for converter smelting
CN119460521B (en) *	2024-11-05	2025-11-25	北京首钢股份有限公司	A feeding device and feeding method for a tank transfer station

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2072221A (en) *	1980-03-21	1981-09-30	Nippon Steel Corp	Steelmaking process with separate refining steps
GB2122649A (en) *	1982-05-28	1984-01-18	Sumitomo Metal Ind	Production of ultra-low phosphorous steel
EP0124890A1 (en) *	1983-05-05	1984-11-14	MANNESMANN Aktiengesellschaft	Process and installation for producing steel
FR2558482A1 (en) *	1984-01-25	1985-07-26	Siderurgie Fse Inst Rech	Process for the production of steel by prerefining pig iron
JPH0472007A (en) *	1990-07-10	1992-03-06	Nippon Steel Corp	Molten steel manufacturing method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2607329B2 (en) *	1992-03-04	1997-05-07	新日本製鐵株式会社	Hot metal dephosphorization method
JP2607328B2 (en) *	1992-03-04	1997-05-07	新日本製鐵株式会社	Hot metal dephosphorization method

1994
- 1994-06-30 CA CA002166097A patent/CA2166097C/en not_active Expired - Lifetime
- 1994-06-30 BR BR9406985-9A patent/BR9406985A/en not_active IP Right Cessation
- 1994-06-30 AU AU70831/94A patent/AU680268B2/en not_active Expired
- 1994-06-30 ES ES94919835T patent/ES2143547T3/en not_active Expired - Lifetime
- 1994-06-30 KR KR1019950705930A patent/KR0159180B1/en not_active Expired - Lifetime
- 1994-06-30 EP EP94919835A patent/EP0714989B1/en not_active Revoked
- 1994-06-30 DE DE69423630T patent/DE69423630T2/en not_active Revoked
- 1994-06-30 WO PCT/JP1994/001070 patent/WO1995001458A1/en not_active Ceased
- 1994-06-30 CN CN94192953A patent/CN1041843C/en not_active Expired - Lifetime

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2072221A (en) *	1980-03-21	1981-09-30	Nippon Steel Corp	Steelmaking process with separate refining steps
GB2122649A (en) *	1982-05-28	1984-01-18	Sumitomo Metal Ind	Production of ultra-low phosphorous steel
EP0124890A1 (en) *	1983-05-05	1984-11-14	MANNESMANN Aktiengesellschaft	Process and installation for producing steel
FR2558482A1 (en) *	1984-01-25	1985-07-26	Siderurgie Fse Inst Rech	Process for the production of steel by prerefining pig iron
JPH0472007A (en) *	1990-07-10	1992-03-06	Nippon Steel Corp	Molten steel manufacturing method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 016, no. 277 (C - 0954) 22 June 1992 (1992-06-22) *
See also references of WO9501458A1 *

Also Published As

Publication number	Publication date
EP0714989B1 (en)	2000-03-22
AU680268B2 (en)	1997-07-24
WO1995001458A1 (en)	1995-01-12
DE69423630T2 (en)	2000-11-09
CN1041843C (en)	1999-01-27
CN1128050A (en)	1996-07-31
BR9406985A (en)	1996-03-05
CA2166097C (en)	2002-01-15
EP0714989A1 (en)	1996-06-05
KR960703440A (en)	1996-08-17
DE69423630D1 (en)	2000-04-27
AU7083194A (en)	1995-01-24
KR0159180B1 (en)	1999-01-15
ES2143547T3 (en)	2000-05-16
CA2166097A1 (en)	1995-01-12

Publication	Publication Date	Title
EP0714989A4 (en)	1997-06-25	PRODUCTION AND STEEL PROCESS USING A CONVERTER
FR2710541B1 (en)	1998-12-04	Set for the introduction of a catheter.
FR2675606B1 (en)	1993-07-16	DECOMPILATION PROCESS FOR THE PRODUCTION OF GRAPHS USING A COMPUTER.
EP0658632A4 (en)	1995-11-29	STEEL VERY RESISTANT TO CORROSION AND STEEL VERY RESISTANT TO CORROSION AND VERY SUITABLE FOR MENDING.
FR2673882B1 (en)	1994-02-25	A BUTTERFLY ASSEMBLY, BUTTERFLY FORMED THEREFROM, AND LABELING METHOD USING THE SAME.
EP0656693A3 (en)	1996-04-24	Method and circuit for the operation of a radiotelephone.
FR2696109B1 (en)	1994-11-04	Oxidation catalyst and partial methane oxidation process.
FR2705842B3 (en)	1995-04-14	Training set for electromobile.
FR2714243B1 (en)	2001-05-11	Method and receiver for demodulating at least one CDMA signal from a received signal.
FR2621928B1 (en)	1990-12-21	CAST ALLOYS AND PROCESS FOR PRODUCING A CAST ARTICLE USING SAID ALLOYS
FR2693727B1 (en)	1994-08-19	Organo-mineral polycondensate and process for obtaining it.
DE69515023D1 (en)	2000-03-16	HIGH-HEAT-RESISTANT FERRITIC STEEL AND METHOD FOR THE PRODUCTION THEREOF
OA09396A (en)	1992-09-15	"Bogie with a deformable frame, and method and set of spare parts for improving such a bogie".
FR2652807B1 (en)	1993-09-17	CERAMIC WELDING PROCESS AND LANCE FOR CARRYING OUT SUCH A PROCESS.
GB2243318B (en)	1993-09-01	A multi-walled steel pipe
DE69322722D1 (en)	1999-02-04	Half-flash A / D converter and A / D conversion process
FR2701408B1 (en)	1995-04-21	Composition and anti-clumping process for fertilizers.
FR2518577B1 (en)	1987-01-02	DEVICE FOR PRODUCING STEEL, IN PARTICULAR A TOP-BLOWING CONVERTER
DZ2032A1 (en)	2002-07-21	A process for the preparation of lercanidipine hydrochloride.
FR2601042B1 (en)	1989-08-25	CORROSION AND WEAR RESISTANT STEEL
DZ1612A1 (en)	2002-02-17	Method for activating a fisher-tropsh catalyst.
FR2676466B1 (en)	1995-05-12	STEEL TIRE CABLE AND A TIRE INCORPORATING IT.
FR2713964B1 (en)	1997-01-31	Method of manufacturing a set of welded metal conduit.
DE69123859D1 (en)	1997-02-13	Ferritic heat-resistant steel with a high nitrogen content and process for its production
FR2763557B1 (en)	1999-08-06	PEDAL REDUCER OF EFFORT FOR CYCLES, AND CYCLE EQUIPPED WITH SUCH A CRANKSET

Legal Events

Date	Code	Title	Description
1996-04-19	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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