FR2099572A1 - Oxygen converter outlet gas flow monitoring - to determine decarburisation of melt and control finat carbon content - Google Patents

Oxygen converter outlet gas flow monitoring - to determine decarburisation of melt and control finat carbon content

Info

Publication number
FR2099572A1
FR2099572A1 FR7126813A FR7126813A FR2099572A1 FR 2099572 A1 FR2099572 A1 FR 2099572A1 FR 7126813 A FR7126813 A FR 7126813A FR 7126813 A FR7126813 A FR 7126813A FR 2099572 A1 FR2099572 A1 FR 2099572A1
Authority
FR
France
Prior art keywords
melt
decarburisation
finat
gas flow
control
Prior art date
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
FR7126813A
Other languages
French (fr)
Other versions
FR2099572B1 (en
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.)
Italsider SpA
Original Assignee
Italsider SpA
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.)
Filing date
Publication date
Application filed by Italsider SpA filed Critical Italsider SpA
Publication of FR2099572A1 publication Critical patent/FR2099572A1/en
Application granted granted Critical
Publication of FR2099572B1 publication Critical patent/FR2099572B1/fr
Granted legal-status Critical Current

Links

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

Abstract

A known quantity of a tracer gas, which is normally absent from O2 and from combustion products, pref. a rare gas, is added to the O2 blast and the concn. of it in the outlet stream is determined by analysis, esp. by mass spectrometry. Quantity of rare gas added is 5 wt.%, and it may be added throughout process, or during parts of it, partic. the final stage. Use of the flow rate derived from the tracer concn., and the concn. of (CO + CO2), enables calculation of amount of C left in melt.
FR7126813A 1970-07-24 1971-07-22 Oxygen converter outlet gas flow monitoring - to determine decarburisation of melt and control finat carbon content Granted FR2099572A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1284170 1970-07-24

Publications (2)

Publication Number Publication Date
FR2099572A1 true FR2099572A1 (en) 1972-03-17
FR2099572B1 FR2099572B1 (en) 1976-02-13

Family

ID=11143501

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7126813A Granted FR2099572A1 (en) 1970-07-24 1971-07-22 Oxygen converter outlet gas flow monitoring - to determine decarburisation of melt and control finat carbon content

Country Status (6)

Country Link
AT (1) AT341556B (en)
BE (1) BE770237A (en)
DE (1) DE2135245C2 (en)
FR (1) FR2099572A1 (en)
LU (1) LU63512A1 (en)
NL (1) NL161815C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402709A1 (en) * 1977-09-10 1979-04-06 Nisshin Steel Co Ltd METHOD OF CONTROL OF A STEEL MANUFACTURING PROCESS AT REDUCED PRESSURES
FR2402707A1 (en) * 1977-09-10 1979-04-06 Nisshin Steel Co Ltd METHOD OF CONTROL OF THE STEEL MANUFACTURING PROCESS AT ATMOSPHERIC PRESSURE

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU55376A1 (en) * 1968-01-30 1969-08-21

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL125038C (en) * 1964-07-23 1900-01-01
US3520657A (en) * 1965-12-27 1970-07-14 Dravo Corp Method and apparatus for the analysis of off-gases in a refining process
US3435660A (en) * 1966-06-20 1969-04-01 Beckman Instruments Inc Steam flow rate monitoring apparatus and method
FR1491118A (en) * 1966-09-02 1967-08-04 Siemens Ag Method for determining the gas flow from the top in blast furnaces
US3666439A (en) * 1970-03-02 1972-05-30 Allegheny Ludlum Ind Inc Method of decarburizing alloy steels

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU55376A1 (en) * 1968-01-30 1969-08-21

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402709A1 (en) * 1977-09-10 1979-04-06 Nisshin Steel Co Ltd METHOD OF CONTROL OF A STEEL MANUFACTURING PROCESS AT REDUCED PRESSURES
FR2402707A1 (en) * 1977-09-10 1979-04-06 Nisshin Steel Co Ltd METHOD OF CONTROL OF THE STEEL MANUFACTURING PROCESS AT ATMOSPHERIC PRESSURE

Also Published As

Publication number Publication date
AT341556B (en) 1978-02-10
NL161815C (en) 1980-03-17
FR2099572B1 (en) 1976-02-13
NL7110258A (en) 1972-01-26
LU63512A1 (en) 1971-11-16
DE2135245C2 (en) 1985-02-14
DE2135245A1 (en) 1972-01-27
BE770237A (en) 1971-12-01
NL161815B (en) 1979-10-15

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Legal Events

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TP Transmission of property
ST Notification of lapse