GB995348A - Improvements in or relating to a method of simultaneously producing low-silicon pig iron and high-alumina slag - Google Patents

Improvements in or relating to a method of simultaneously producing low-silicon pig iron and high-alumina slag

Info

Publication number
GB995348A
GB995348A GB22527/61A GB2252761A GB995348A GB 995348 A GB995348 A GB 995348A GB 22527/61 A GB22527/61 A GB 22527/61A GB 2252761 A GB2252761 A GB 2252761A GB 995348 A GB995348 A GB 995348A
Authority
GB
United Kingdom
Prior art keywords
al2o3
cao
pig iron
fe2o3
feo
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
GB22527/61A
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.)
LafargeHolcim Ciments SA
Original Assignee
Lafarge Ciments SA
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 Lafarge Ciments SA filed Critical Lafarge Ciments SA
Publication of GB995348A publication Critical patent/GB995348A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/32—Aluminous cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/14—Cements containing slag
    • C04B7/147—Metallurgical slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/02—Making pig-iron other than in blast furnaces in low shaft furnaces or shaft furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/04—Making slag of special composition
    • 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
    • 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
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Metallurgy (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Products (AREA)

Abstract

A slag containing by weight 43.5-70% Al2O3, 2-10% SiO2, 28-45% CaO and O-1.5% FeO and/or Fe2O3, for producing a high-alumina cement, and a pig iron containing less than 0.3% Si are simultaneously produced in a furnace by charging it, in regular layers or in a homogenous charge, with coke and slagging materials poor in silica of total composition 20-65% Al2O3, less than 7% SiO2, 10-60% CaO, and 1-7% FeO and/or Fe2O3 some or all of which may be added as iron ore, preferably having particle sizes Al2O3 5-25 mm., CaO 5-15 mm. and coke 5-50 mm., maintaining a uniform temperature above 2000 DEG C. in the blast area of the furnace by blowing hot air, with or without steam and/or added oxygen and/or liquid fuel, at a temperature of at least 600 DEG C. through the charge, and separately discharging the molten slag and pig iron.ALSO:A slag containing by weight 43.5-70% Al2O3, 2-10% SiO2, 28-45% CaO and 0-1.5% FeO and/or Fe2O3, for producing a high-alumina cement, and a pig iron containing less than 0.3% Si are simultaneously produced in a furnace by charging it, in regular layers or in a homogeneous charge, with coke and slagging materials poor in silica of total composition 20-65% Al2O3, less than 7% SiO2, 10-60% CaO, and 1-7% FeO and/or Fe2O3 some or all of which may be added as iron ore, preferably having particle sizes Al2O3 5-25 mm., CaO 5-15 mm. and coke 5-50 mm., maintaining a uniform temperature above 2000 DEG C. in the blast area of the furnace by blowing hot air, with or without steam and/or added oxygen and/or liquid fuel, at a temperature of at least 600 DEG C. through the charge, and separately discharging the molten slag and pig iron.
GB22527/61A 1960-12-23 1961-06-21 Improvements in or relating to a method of simultaneously producing low-silicon pig iron and high-alumina slag Expired GB995348A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR847814A FR1283331A (en) 1960-12-23 1960-12-23 Simultaneous manufacturing process of low siliceous cast iron and special slag for extra refractory and resistant molten cement, with a very high alumina content and products thus obtained

Publications (1)

Publication Number Publication Date
GB995348A true GB995348A (en) 1965-06-16

Family

ID=8745375

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22527/61A Expired GB995348A (en) 1960-12-23 1961-06-21 Improvements in or relating to a method of simultaneously producing low-silicon pig iron and high-alumina slag

Country Status (2)

Country Link
FR (1) FR1283331A (en)
GB (1) GB995348A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4961787A (en) * 1987-10-15 1990-10-09 National Reserach Development Corporation Cement composition
US5073197A (en) * 1988-08-12 1991-12-17 National Research Development Corporation Cement compositions
US7810566B2 (en) 2006-06-30 2010-10-12 Halliburton Energy Services Inc. Settable compositions free of portland cement and associated methods of use

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4961787A (en) * 1987-10-15 1990-10-09 National Reserach Development Corporation Cement composition
US5073197A (en) * 1988-08-12 1991-12-17 National Research Development Corporation Cement compositions
US7810566B2 (en) 2006-06-30 2010-10-12 Halliburton Energy Services Inc. Settable compositions free of portland cement and associated methods of use

Also Published As

Publication number Publication date
FR1283331A (en) 1962-02-02

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