IT1069847B - Continuous refining of ferrous metal - by dephosphorisation and desulphurisation using flux contg. alkali metal carbonate - Google Patents

Continuous refining of ferrous metal - by dephosphorisation and desulphurisation using flux contg. alkali metal carbonate

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Publication number
IT1069847B
IT1069847B IT5260176A IT5260176A IT1069847B IT 1069847 B IT1069847 B IT 1069847B IT 5260176 A IT5260176 A IT 5260176A IT 5260176 A IT5260176 A IT 5260176A IT 1069847 B IT1069847 B IT 1069847B
Authority
IT
Italy
Prior art keywords
alkali metal
contg
metal carbonate
dephosphorisation
refining
Prior art date
Application number
IT5260176A
Other languages
Italian (it)
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.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to IT5260176A priority Critical patent/IT1069847B/en
Application granted granted Critical
Publication of IT1069847B publication Critical patent/IT1069847B/en

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  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

Molten ferrous metal is continuously refined, using a single dephosphorisation and desulphurising step, by continuously introducing the metal into a refining vessel, closed to the atmos. together with a flux contg. >=50% alkali metal carbonate-contg. salt to refine the metal under oxidising conditions. The by-prod., generated during refining, is discharged and alkali metal carbonate-contg. salt is recovered from it for recycling. Used esp. in the refining of pig iron or ferroalloys such as ferromanganese; e.g. the treatment can be applied to pig iron before feeding it to a LD converter. The process provides a closed circuit for the alkali metal carbonate to reduce costs and pollution problems.
IT5260176A 1976-12-14 1976-12-14 Continuous refining of ferrous metal - by dephosphorisation and desulphurisation using flux contg. alkali metal carbonate IT1069847B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT5260176A IT1069847B (en) 1976-12-14 1976-12-14 Continuous refining of ferrous metal - by dephosphorisation and desulphurisation using flux contg. alkali metal carbonate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5260176A IT1069847B (en) 1976-12-14 1976-12-14 Continuous refining of ferrous metal - by dephosphorisation and desulphurisation using flux contg. alkali metal carbonate

Publications (1)

Publication Number Publication Date
IT1069847B true IT1069847B (en) 1985-03-25

Family

ID=11277300

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5260176A IT1069847B (en) 1976-12-14 1976-12-14 Continuous refining of ferrous metal - by dephosphorisation and desulphurisation using flux contg. alkali metal carbonate

Country Status (1)

Country Link
IT (1) IT1069847B (en)

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