GB658508A - Improvements in and relating to the treatment of metals - Google Patents

Improvements in and relating to the treatment of metals

Info

Publication number
GB658508A
GB658508A GB32812/49A GB3281249A GB658508A GB 658508 A GB658508 A GB 658508A GB 32812/49 A GB32812/49 A GB 32812/49A GB 3281249 A GB3281249 A GB 3281249A GB 658508 A GB658508 A GB 658508A
Authority
GB
United Kingdom
Prior art keywords
impregnated
hydrocarbons
pieces
rocky
metals
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.)
Expired
Application number
GB32812/49A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB658508A publication Critical patent/GB658508A/en
Expired 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • 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

Abstract

A calcined porous rocky basic material, e.g. limestone or dolomite is impregnated with one or more alkaline metal compounds, e.g. potassium or sodium compounds, and used to deoxidize and to remove sulphur and phosphorus from metal, especially steel. The pieces of the rocky material are preferably 30-80mm in diameter. They may also be used coated with hydrocarbons, or with other substances used in the manufacture of steel, such as pieces of calcined limestone impregnated with hydrocarbons, e.g. pitch or bitumen.
GB32812/49A 1949-01-21 1949-12-22 Improvements in and relating to the treatment of metals Expired GB658508A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE658508X 1949-01-21

Publications (1)

Publication Number Publication Date
GB658508A true GB658508A (en) 1951-10-10

Family

ID=3877032

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32812/49A Expired GB658508A (en) 1949-01-21 1949-12-22 Improvements in and relating to the treatment of metals

Country Status (1)

Country Link
GB (1) GB658508A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1939307A3 (en) * 2006-12-30 2008-07-23 Qingdao Deshipu Metallurgy Science & Technology Co., Ltd. Lime-based additive for steel smelting and the preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1939307A3 (en) * 2006-12-30 2008-07-23 Qingdao Deshipu Metallurgy Science & Technology Co., Ltd. Lime-based additive for steel smelting and the preparation method thereof

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