GB668218A - Improvements in the smelting of metallic oxides in a blast furnace - Google Patents

Improvements in the smelting of metallic oxides in a blast furnace

Info

Publication number
GB668218A
GB668218A GB29413/49A GB2941349A GB668218A GB 668218 A GB668218 A GB 668218A GB 29413/49 A GB29413/49 A GB 29413/49A GB 2941349 A GB2941349 A GB 2941349A GB 668218 A GB668218 A GB 668218A
Authority
GB
United Kingdom
Prior art keywords
blast
furnace
oxygen
per cent
carbon dioxide
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
GB29413/49A
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 GB668218A publication Critical patent/GB668218A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/28—Increasing the gas reduction potential of recycled exhaust gases by separation
    • C21B2100/282—Increasing the gas reduction potential of recycled exhaust gases by separation of carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
    • C21B2100/44—Removing particles, e.g. by scrubbing, dedusting
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/64—Controlling the physical properties of the gas, e.g. pressure or temperature
    • 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
    • Y02P10/25—Process efficiency

Abstract

Phosphorus and silicon are produced from ores containing them in a blast furnace by employing a blast containing 30 and 15 per cent respectively of oxygen and carbon dioxide, the carbon dioxide being obtained from the exit gases of the furnace, preferably by scrubbing and compressing the gases. Hydrogen and water vapour are preferably supressed in the furnace, and secondary oxygen may be supplied to burn carbon monoxide in the upper part of the stack.ALSO:A blast furnace process for the production of iron, copper, tin, silver, gold, lead, vanadium, columbium, tantalum, chromium, molybdenum, tungsten, manganese, cobalt, nickel, ruthenium, palladium, indium and platinum, employs a blast proportions above 30 and 15 per cent respectively, the carbon dioxide being obtained from the exit gases of the furnace, preferably by scrubbing and compressing the gases. Hydrogen and water vapour are preferably suppressed and secondary oxygen may be supplied to burn carbon monoxide in the upper part of the stack. A blast of not less than 40 and 45 per cent of oxygen and carbon dioxide respectively is recommended for smelting ferrous ores. A minimum of 45 per cent oxygen is recommended for other ores.
GB29413/49A 1948-12-14 1949-11-17 Improvements in the smelting of metallic oxides in a blast furnace Expired GB668218A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA668218X 1948-12-14

Publications (1)

Publication Number Publication Date
GB668218A true GB668218A (en) 1952-03-12

Family

ID=25561055

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29413/49A Expired GB668218A (en) 1948-12-14 1949-11-17 Improvements in the smelting of metallic oxides in a blast furnace

Country Status (1)

Country Link
GB (1) GB668218A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0273420A2 (en) * 1986-12-27 1988-07-06 Nippon Kokan Kabushiki Kaisha A blast furnace method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0273420A2 (en) * 1986-12-27 1988-07-06 Nippon Kokan Kabushiki Kaisha A blast furnace method
EP0273420A3 (en) * 1986-12-27 1988-08-03 Nippon Kokan Kabushiki Kaisha A blast furnace

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