YU95590A - Sredstvo za uklanjanje sumpora, postupak za njegovo dobijanje i postupak za smanjivanje količine kalcijuma karbida u šljaci nakon uklanjanja sumpora iz rastopa gvoždja - Google Patents

Sredstvo za uklanjanje sumpora, postupak za njegovo dobijanje i postupak za smanjivanje količine kalcijuma karbida u šljaci nakon uklanjanja sumpora iz rastopa gvoždja

Info

Publication number
YU95590A
YU95590A YU95590A YU95590A YU95590A YU 95590 A YU95590 A YU 95590A YU 95590 A YU95590 A YU 95590A YU 95590 A YU95590 A YU 95590A YU 95590 A YU95590 A YU 95590A
Authority
YU
Yugoslavia
Prior art keywords
procedure
sulfur
slag
removal
obtaining
Prior art date
Application number
YU95590A
Other languages
English (en)
Other versions
YU47514B (sh
Inventor
T. Mc Cluhan
D. Craig
R. Kaiser
Original Assignee
Elkem Metals Company
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
Priority claimed from US07/353,700 external-priority patent/US4941914A/en
Priority claimed from US07/493,301 external-priority patent/US5078784A/en
Application filed by Elkem Metals Company filed Critical Elkem Metals Company
Publication of YU95590A publication Critical patent/YU95590A/sh
Publication of YU47514B publication Critical patent/YU47514B/sh

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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • C21C1/025—Agents used for dephosphorising or desulfurising
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

Sredstvo za uklanjanje sumpora iz rastopa gvoždja dobija se od komercijalnog kalcijum karbida, topitelja odabranog iz grupe koja se sastoji od kalcijum aluminatne šljake i silicijum dioksida, i metalnog oksida. Metalni oksidi su oksidi gvoždja i manganovi oksidi. Postupak za dobijanje sredstva iz pronalaska sastoji se od mešanja, u rastopu, kalcijum oksida, kalcijum fluorida i aluminijum oksida, nakon čega se smeša naglo hladi, pa joj se po očvršćavanju dodaje komercijalni kalcijum karbid; ili od mešanja čestica čvrstog komercijalnog kalcijum karbida i čestica silicijum dioksida, nakon čega sledi kompaktovanje i granulovanje. Nakon uklanjanja sumpora iz rastopa gvoždja šljaka koja se uklanja sa površine rastopa sadrži smanjenu kolićinu rezidualnog kalcijum karbida.
YU95590A 1989-05-18 1990-05-16 Sredstvo za uklanjanje sumpora, postupak za njegovo dobijanje i postupak za smanjivanje količine kalcijum karbida u šljaci nakon uklanjanja sumpora iz rastvora gvoždja YU47514B (sh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/353,700 US4941914A (en) 1989-05-18 1989-05-18 Desulfurization agent
US07/493,301 US5078784A (en) 1990-03-14 1990-03-14 Desulfurization agent

Publications (2)

Publication Number Publication Date
YU95590A true YU95590A (sh) 1994-01-20
YU47514B YU47514B (sh) 1995-10-03

Family

ID=26998060

Family Applications (1)

Application Number Title Priority Date Filing Date
YU95590A YU47514B (sh) 1989-05-18 1990-05-16 Sredstvo za uklanjanje sumpora, postupak za njegovo dobijanje i postupak za smanjivanje količine kalcijum karbida u šljaci nakon uklanjanja sumpora iz rastvora gvoždja

Country Status (6)

Country Link
EP (1) EP0398674B1 (sh)
AT (1) ATE135748T1 (sh)
DE (1) DE69025981T2 (sh)
NO (1) NO179080C (sh)
PL (1) PL168737B1 (sh)
YU (1) YU47514B (sh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011116501C5 (de) 2011-10-20 2018-05-24 Almamet Gmbh Bitumen enthaltendes Entschwefelungsmittel
CN114875194B (zh) * 2022-04-25 2023-11-14 武汉钢铁有限公司 一种铁水石灰基kr高效脱硫剂及其制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2037758C3 (de) * 1970-07-30 1979-08-02 Hoechst Ag, 6000 Frankfurt Verfahren zur Herstellung von CaIciumkarbid zur Entschwefelung von Metallschmelzen
FR2432550A1 (fr) * 1978-08-04 1980-02-29 Sueddeutsche Kalkstickstoff Procede pour la fabrication d'un melange de desulfuration pulverulent facilement fluidifiable
DE2907069C3 (de) * 1979-02-23 1981-12-10 Krupp Stahl Ag, 4630 Bochum Mittel zur Entschwefelung von Metallschmelzen
US4572737A (en) * 1984-06-27 1986-02-25 The Boc Group, Inc. Agents for the removal of impurities from a molten metal and a process for producing same
DE3535280A1 (de) * 1985-10-03 1987-04-09 Hoechst Ag Entschwefelungsgemisch fuer metallschmelzen, ein verfahren zu seiner herstellung und seine verwendung
DE3544563C2 (de) * 1985-12-17 1998-07-16 Sueddeutsche Kalkstickstoff Mittel zur Entschwefelung von geschmolzenem Eisen
CA1286506C (en) * 1987-02-13 1991-07-23 William Kevin Kodatsky Method of desulfurizing iron

Also Published As

Publication number Publication date
NO902154L (no) 1990-11-19
YU47514B (sh) 1995-10-03
EP0398674B1 (en) 1996-03-20
PL168737B1 (pl) 1996-04-30
NO179080B (no) 1996-04-22
DE69025981D1 (de) 1996-04-25
NO179080C (no) 1996-07-31
EP0398674A3 (en) 1991-04-10
DE69025981T2 (de) 1996-10-10
ATE135748T1 (de) 1996-04-15
NO902154D0 (no) 1990-05-15
EP0398674A2 (en) 1990-11-22
PL285228A1 (en) 1991-01-28

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