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IT1109109B - Reducing metal oxide pellets - by feeding them down retort with solid reductant to produce gases flowing in co-current with charge and removing them from base - Google Patents

Reducing metal oxide pellets - by feeding them down retort with solid reductant to produce gases flowing in co-current with charge and removing them from base

Info

Publication number
IT1109109B
IT1109109B IT6915378A IT6915378A IT1109109B IT 1109109 B IT1109109 B IT 1109109B IT 6915378 A IT6915378 A IT 6915378A IT 6915378 A IT6915378 A IT 6915378A IT 1109109 B IT1109109 B IT 1109109B
Authority
IT
Italy
Prior art keywords
retort
charge
pref
gas
current
Prior art date
Application number
IT6915378A
Other languages
Italian (it)
Other versions
IT7869153A0 (en
Original Assignee
Ferriere Arvedi E C S P A
Kinglor Metor Spa
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
Publication of IT7869153A0 publication Critical patent/IT7869153A0/en
Application filed by Ferriere Arvedi E C S P A, Kinglor Metor Spa filed Critical Ferriere Arvedi E C S P A
Priority to IT6915378A priority Critical patent/IT1109109B/en
Priority to SE7906778A priority patent/SE7906778L/en
Priority to ZA00794281A priority patent/ZA794281B/en
Priority to AU50340/79A priority patent/AU5034079A/en
Priority to DE19792935466 priority patent/DE2935466A1/en
Priority to ES484139A priority patent/ES484139A1/en
Priority to GB7932022A priority patent/GB2034755A/en
Priority to DD215644A priority patent/DD146190A5/en
Priority to FR7923350A priority patent/FR2436822A1/en
Application granted granted Critical
Publication of IT1109109B publication Critical patent/IT1109109B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/04—Making spongy iron or liquid steel, by direct processes in retorts
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • 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
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)

Abstract

The pellets are heated together with a solid reducing agent (I), in a retort; and the gaseous reaction prods. (II) flow at least partly in co-current with the charge travelling down the retort. The retort is pref. gastight with a gas outlet towards its lower end, via which gas leaves the retort via an equilibrium or via a suction fan causing a negative gas pressure in the retort. A noncombustible gas may be fed into the top, charging end of the retort to form a gastight seal. A high thermal efficiency is achieved. Agent (I) is pref. hard coal and/or reactive coke; and the moisture in the charge pref. forms steam used to make water gas. The pref. retort is located in a vertical shaft furnace below a charging chamber fitted with shutter valves.
IT6915378A 1978-09-19 1978-09-19 Reducing metal oxide pellets - by feeding them down retort with solid reductant to produce gases flowing in co-current with charge and removing them from base IT1109109B (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
IT6915378A IT1109109B (en) 1978-09-19 1978-09-19 Reducing metal oxide pellets - by feeding them down retort with solid reductant to produce gases flowing in co-current with charge and removing them from base
SE7906778A SE7906778L (en) 1978-09-19 1979-08-14 METHOD AND METHOD OF REDUCING METAL OXIDES
ZA00794281A ZA794281B (en) 1978-09-19 1979-08-15 Process for the reduction of metal oxides
AU50340/79A AU5034079A (en) 1978-09-19 1979-08-28 Solid state reduction of metal oxides in retorts
DE19792935466 DE2935466A1 (en) 1978-09-19 1979-09-01 METHOD FOR REDUCING METAL OXIDES AND DEVICE FOR IMPLEMENTING THE METHOD
ES484139A ES484139A1 (en) 1978-09-19 1979-09-13 Reduction of Metal Oxides
GB7932022A GB2034755A (en) 1978-09-19 1979-09-14 Reduction of Metal Oxides
DD215644A DD146190A5 (en) 1978-09-19 1979-09-19 METHOD AND DEVICE FOR REDUCING METAL OXIDES
FR7923350A FR2436822A1 (en) 1978-09-19 1979-09-19 PROCESS FOR REDUCING METAL OXIDES OPERATING WITH A SOLID REDUCER IN ROCK OVENS, WITH GAS CIRCULATION OF HORNS WITH PARTIAL OR TOTAL EQUICURENT RELATIVE TO THE FLOW OF THE LOAD, AND INSTALLATION FOR THE IMPLEMENTATION WORK OF THIS PROCESS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6915378A IT1109109B (en) 1978-09-19 1978-09-19 Reducing metal oxide pellets - by feeding them down retort with solid reductant to produce gases flowing in co-current with charge and removing them from base

Publications (2)

Publication Number Publication Date
IT7869153A0 IT7869153A0 (en) 1978-09-13
IT1109109B true IT1109109B (en) 1985-12-16

Family

ID=11311452

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6915378A IT1109109B (en) 1978-09-19 1978-09-19 Reducing metal oxide pellets - by feeding them down retort with solid reductant to produce gases flowing in co-current with charge and removing them from base

Country Status (9)

Country Link
AU (1) AU5034079A (en)
DD (1) DD146190A5 (en)
DE (1) DE2935466A1 (en)
ES (1) ES484139A1 (en)
FR (1) FR2436822A1 (en)
GB (1) GB2034755A (en)
IT (1) IT1109109B (en)
SE (1) SE7906778L (en)
ZA (1) ZA794281B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT367798B (en) * 1980-08-08 1982-07-26 Voest Alpine Ag METHOD FOR DIRECTLY REDUCING IRON CARRIERS AND DEVICE FOR IMPLEMENTING THE METHOD
AT366718B (en) * 1980-08-08 1982-05-10 Voest Alpine Ag METHOD FOR DEZINCIFYING OXYDIC IRON CLEAR AND APPARATUS FOR CARRYING OUT THIS METHOD
MX162727A (en) * 1984-03-15 1991-06-20 Hylsa Sa IMPROVED METHOD AND APPARATUS FOR PRODUCING IRON WITH A SPONGE-LIKE STRUCTURE FROM IRON OXIDE PARTICLES
CN115029494B (en) * 2022-06-21 2023-12-12 首钢集团有限公司 Reaction tank, hydrogen reduction system and hydrogen reduction method

Also Published As

Publication number Publication date
DD146190A5 (en) 1981-01-28
IT7869153A0 (en) 1978-09-13
FR2436822A1 (en) 1980-04-18
FR2436822B3 (en) 1981-06-26
ES484139A1 (en) 1980-10-01
ZA794281B (en) 1980-10-29
SE7906778L (en) 1980-03-20
GB2034755A (en) 1980-06-11
DE2935466A1 (en) 1980-04-24
AU5034079A (en) 1980-03-27

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