CN108070685A - A kind of niobium slag dephosphorization method - Google Patents

A kind of niobium slag dephosphorization method Download PDF

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Publication number
CN108070685A
CN108070685A CN201610993320.0A CN201610993320A CN108070685A CN 108070685 A CN108070685 A CN 108070685A CN 201610993320 A CN201610993320 A CN 201610993320A CN 108070685 A CN108070685 A CN 108070685A
Authority
CN
China
Prior art keywords
niobium
niobium slag
slag
molten iron
dephosphorization method
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.)
Pending
Application number
CN201610993320.0A
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Chinese (zh)
Inventor
不公告发明人
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to CN201610993320.0A priority Critical patent/CN108070685A/en
Publication of CN108070685A publication Critical patent/CN108070685A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/076—Use of slags or fluxes as treating 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
    • Y02P10/20—Recycling
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

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

Abstract

The present invention, which provides niobium slag dephosphorization method, to be included：Niobium slag is added in molten iron and is stirred, mixing time is 30 minutes, collects the niobium slag shown, obtains rich niobium slag.

Description

A kind of niobium slag dephosphorization method
Technical field
The invention belongs to metallurgical engineering fields, and in particular to niobium slag dephosphorization method.
Background technology
China's rare earth reserves rank first in the world, the reserves the second in the world of niobium, but niobium resource and the close symbiosis of other mineral, It is complicated, it is difficult to separate, can only enter tailing addition in cast iron, it is impossible to fill in molten steel as ferrocolumbium, therefore, grind Study carefully a kind of niobium slag dephosphorization method, it is significant for reducing smelting cost.
The content of the invention
The present invention, which provides niobium slag dephosphorization method, to be included：Niobium slag is added in molten iron and is stirred, mixing time is 30 minutes, is collected The niobium slag shown obtains rich niobium slag.
Rich niobium ground-slag body is blown into molten iron, carrier is nitrogen, and molten iron surface temperature is 1600 degree, by such method, The content of phosphorus is less than 2 percent, so improves the use scope of niobium slag.

Claims (2)

1. the present invention, which provides niobium slag dephosphorization method, to be included：Niobium slag is added in molten iron and is stirred, mixing time is 30 minutes, collects table Bright niobium slag obtains rich niobium slag.
2. rich niobium ground-slag body is blown into molten iron, carrier is nitrogen, and molten iron surface temperature is 1600 degree, passes through such method, phosphorus Content be less than 2 percent, so improve the use scope of niobium slag.
CN201610993320.0A 2016-11-11 2016-11-11 A kind of niobium slag dephosphorization method Pending CN108070685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610993320.0A CN108070685A (en) 2016-11-11 2016-11-11 A kind of niobium slag dephosphorization method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610993320.0A CN108070685A (en) 2016-11-11 2016-11-11 A kind of niobium slag dephosphorization method

Publications (1)

Publication Number Publication Date
CN108070685A true CN108070685A (en) 2018-05-25

Family

ID=62153605

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610993320.0A Pending CN108070685A (en) 2016-11-11 2016-11-11 A kind of niobium slag dephosphorization method

Country Status (1)

Country Link
CN (1) CN108070685A (en)

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PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20180525