WO2018068066A3 - Method of producing a low carbon ferrochrome by means of metallorthermic reduction and oxygen refining - Google Patents

Method of producing a low carbon ferrochrome by means of metallorthermic reduction and oxygen refining Download PDF

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Publication number
WO2018068066A3
WO2018068066A3 PCT/ZA2017/000011 ZA2017000011W WO2018068066A3 WO 2018068066 A3 WO2018068066 A3 WO 2018068066A3 ZA 2017000011 W ZA2017000011 W ZA 2017000011W WO 2018068066 A3 WO2018068066 A3 WO 2018068066A3
Authority
WO
WIPO (PCT)
Prior art keywords
producing
metallorthermic
reduction
low carbon
carbon ferrochrome
Prior art date
Application number
PCT/ZA2017/000011
Other languages
French (fr)
Other versions
WO2018068066A2 (en
Inventor
Jacques BEYLEFELD
Original Assignee
Beylefeld Jacques
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 Beylefeld Jacques filed Critical Beylefeld Jacques
Publication of WO2018068066A2 publication Critical patent/WO2018068066A2/en
Priority to ZA201900864A priority Critical patent/ZA201900864B/en
Publication of WO2018068066A3 publication Critical patent/WO2018068066A3/en

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Classifications

    • 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
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/32—Obtaining chromium
    • 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
    • C22B5/04—Dry methods smelting of sulfides or formation of mattes by aluminium, other metals or silicon
    • 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
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ

Abstract

The invention provides for a pyrometallurgical method for producing a high grade chromium product comprising a first step of reducing a chromium oxide reactant in an electric furnace, with a reducing agent of any one or more of aluminium, silicon or ferrosllicon, to a produce an alloy of ferrochrome; and a second step of oxidising the alloy in a vessel with a refining gas to reduce the amount of silicon or aluminium in the alloy to produce the high grade chromium product.
PCT/ZA2017/000011 2016-09-21 2017-09-21 Method of producing a low carbon ferrochrome by means of metallorthermic reduction and oxygen refining WO2018068066A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA201900864A ZA201900864B (en) 2016-09-21 2019-02-11 Method of producing a low carbon ferrochrome by means of metallorthermic reduction and oxygen refining

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2016/06511 2016-09-21
ZA201606511 2016-09-21

Publications (2)

Publication Number Publication Date
WO2018068066A2 WO2018068066A2 (en) 2018-04-12
WO2018068066A3 true WO2018068066A3 (en) 2019-05-31

Family

ID=61831940

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2017/000011 WO2018068066A2 (en) 2016-09-21 2017-09-21 Method of producing a low carbon ferrochrome by means of metallorthermic reduction and oxygen refining

Country Status (2)

Country Link
WO (1) WO2018068066A2 (en)
ZA (1) ZA201900864B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10508319B1 (en) * 2019-06-27 2019-12-17 MM Metals USA, LLC Method and system for producing low carbon ferrochrome from chromite ore and low carbon ferrochrome produced thereby

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030110886A1 (en) * 2000-03-07 2003-06-19 Hiroiti Sugimori Chromium-containing metal and method for producing the same
WO2013187348A1 (en) * 2012-06-15 2013-12-19 Ｊｆｅマテリアル株式会社 Metal chrome fabrication method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030110886A1 (en) * 2000-03-07 2003-06-19 Hiroiti Sugimori Chromium-containing metal and method for producing the same
WO2013187348A1 (en) * 2012-06-15 2013-12-19 Ｊｆｅマテリアル株式会社 Metal chrome fabrication method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
P J BHONDE ET AL: "VARIOUS TECHNIQUES TO PRODUCE LOW CARBON FERROCHROME", 1 January 2007 (2007-01-01), XP055577735, Retrieved from the Internet <URL:https://www.pyrometallurgy.co.za/InfaconXI/085-Bhonde.pdf> [retrieved on 20190404] *

Also Published As

Publication number Publication date
ZA201900864B (en) 2019-11-27
WO2018068066A2 (en) 2018-04-12

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