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.)
Expired
Application number
GB14101/59A
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.)
Dortmund Hoerder Huettenunion AG
Original Assignee
Dortmund Hoerder Huettenunion AG
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 Dortmund Hoerder Huettenunion AGfiledCriticalDortmund Hoerder Huettenunion AG
Publication of GB896555ApublicationCriticalpatent/GB896555A/en
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
C21C1/00—Refining of pig-iron; Cast iron
C21C1/02—Dephosphorising or desulfurising
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Chemical & Material Sciences
(AREA)
Engineering & Computer Science
(AREA)
Materials Engineering
(AREA)
Metallurgy
(AREA)
Organic Chemistry
(AREA)
Treatment Of Steel In Its Molten State
(AREA)
Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces
(AREA)
Abstract
An improvement in the process of desulphorising molten pig or cast irons as described and claimed in claims 1 to 5 of the parent Specification comprises covering the surface of the melt exposed to the vacuum with carbon which is substantially free from sulphur. That part of the melt which is subjected to the vacuum may be heated to a temperature above that of the rest of the melt.
GB14101/59A1958-07-291959-04-24Improvements relating to the desulphurisation of iron
ExpiredGB896555A
(en)
Procedure for the obtaining, by fusion, of metals and alloys, used in contact with cast materials (Machine-translation by Google Translate, not legally binding)