GB312361A - Improvements in processes for purifying pig iron - Google Patents

Improvements in processes for purifying pig iron

Info

Publication number
GB312361A
GB312361A GB15697/29A GB1569729A GB312361A GB 312361 A GB312361 A GB 312361A GB 15697/29 A GB15697/29 A GB 15697/29A GB 1569729 A GB1569729 A GB 1569729A GB 312361 A GB312361 A GB 312361A
Authority
GB
United Kingdom
Prior art keywords
carbon
slag
materials
purifying
oxides
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
GB15697/29A
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.)
Krupp Stahl AG
Fried Krupp AG
Original Assignee
Krupp Stahl AG
Fried Krupp 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 Krupp Stahl AG, Fried Krupp AG filed Critical Krupp Stahl AG
Publication of GB312361A publication Critical patent/GB312361A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00Refining of pig-iron; Cast iron

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

312,361. Krupp Akt.-Ges., F. May 25, 1928, [Convention date]. Purifying and refining.-In a process for purifying pig iron in which the carbon content can be reduced, increased, or kept constant, the bath is covered with a dephosphorizing and desulphurizing slag which contains carbon in a solid or liquid form, e.g. tar or carbonaceous compounds. The process may be carried out in the forehearth or hearth of a shaft furnace or in a hearth or rotary tubular furnace, and the carbon content is varied or kept constant by relatively adjusting the quantities of the fining materials and the carbon and also the temperature of the materials. The slag contains the fining means, e.g. iron or manganese oxides as well as materials, such e.g. as oxides of alkaline or heavy metals, required to fix the phosphorus oxides formed. The carbon may be added to the molten metal before the addition of the slag. It is stated that the presence of carbon in the slag maintains the content of silicon and of manganese. Specifications 5084/88, 1947/02, 17131/06, 25581/10, and 162,618 are referred to.
GB15697/29A 1928-05-25 1929-05-21 Improvements in processes for purifying pig iron Expired GB312361A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE312361X 1928-05-25

Publications (1)

Publication Number Publication Date
GB312361A true GB312361A (en) 1930-09-22

Family

ID=6134706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15697/29A Expired GB312361A (en) 1928-05-25 1929-05-21 Improvements in processes for purifying pig iron

Country Status (1)

Country Link
GB (1) GB312361A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE963961C (en) * 1953-11-01 1957-05-16 Huettenwerk Haspe Ag Process for the desulphurization of pig iron for the production of high quality Thomas steel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE963961C (en) * 1953-11-01 1957-05-16 Huettenwerk Haspe Ag Process for the desulphurization of pig iron for the production of high quality Thomas steel

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