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Patent Searching and Data


Title:
METHOD OF PRODUCING A LOW CARBON FERROCHROME BY MEANS OF METALLORTHERMIC REDUCTION AND OXYGEN REFINING
Document Type and Number:
WIPO Patent Application WO/2018/068066
Kind Code:
A3
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.

Inventors:
BEYLEFELD JACQUES (ZA)
Application Number:
PCT/ZA2017/000011
Publication Date:
May 31, 2019
Filing Date:
September 21, 2017
Export Citation:
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Assignee:
BEYLEFELD JACQUES (ZA)
International Classes:
C22B5/04; C22B9/05; C22B34/32
Domestic Patent References:
WO2013187348A12013-12-19
Foreign References:
US20030110886A12003-06-19
Other References:
P J BHONDE ET AL: "VARIOUS TECHNIQUES TO PRODUCE LOW CARBON FERROCHROME", 1 January 2007 (2007-01-01), XP055577735, Retrieved from the Internet [retrieved on 20190404]
Attorney, Agent or Firm:
MCCALUM RADEMEYER AND FREIMOND (ZA)
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