FI873420A - FOERFARANDE FOER REDUKTION AV KROMITMALM. - Google Patents

FOERFARANDE FOER REDUKTION AV KROMITMALM. Download PDF

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Publication number
FI873420A
FI873420A FI873420A FI873420A FI873420A FI 873420 A FI873420 A FI 873420A FI 873420 A FI873420 A FI 873420A FI 873420 A FI873420 A FI 873420A FI 873420 A FI873420 A FI 873420A
Authority
FI
Finland
Prior art keywords
chromite
quartz
kromitmalm
reduktion
alkali metal
Prior art date
Application number
FI873420A
Other languages
Finnish (fi)
Other versions
FI87237C (en
FI873420A0 (en
FI87237B (en
Inventor
Nicholas Finch Dawson
Roderick Ivan Edwards
Original Assignee
Samancor Ltd
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 Samancor Ltd filed Critical Samancor Ltd
Publication of FI873420A0 publication Critical patent/FI873420A0/en
Publication of FI873420A publication Critical patent/FI873420A/en
Application granted granted Critical
Publication of FI87237B publication Critical patent/FI87237B/en
Publication of FI87237C publication Critical patent/FI87237C/en

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  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention relates to a method for reduction of chromite ores in a solid state, whereby a finely distributed chromite ore is heated in an intimate mixture and preferably in agglomerated form with a solid carbonaceous reducing agent, an alkali metal aluminium silicate, quartz and calcium fluoride, to a temperature of principally 1200-1500 degree C and typically at about 1300 degree C in such a way that a liquid flux phase is formed in contact with adjacent solid chromite and reducing agent particles. The alkali metal aluminium silicate, quartz and calcium fluoride are most suitably present in the form of granite and fluorite.
FI873420A 1986-08-07 1987-08-06 FOERFARANDE FOER REDUKTION AV KROMITMALM FI87237C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA865937 1986-08-07
ZA8605937 1986-08-07

Publications (4)

Publication Number Publication Date
FI873420A0 FI873420A0 (en) 1987-08-06
FI873420A true FI873420A (en) 1988-02-08
FI87237B FI87237B (en) 1992-08-31
FI87237C FI87237C (en) 1992-12-10

Family

ID=25578507

Family Applications (1)

Application Number Title Priority Date Filing Date
FI873420A FI87237C (en) 1986-08-07 1987-08-06 FOERFARANDE FOER REDUKTION AV KROMITMALM

Country Status (5)

Country Link
BR (1) BR8704022A (en)
FI (1) FI87237C (en)
GR (1) GR871253B (en)
IN (1) IN167768B (en)
TR (1) TR23786A (en)

Also Published As

Publication number Publication date
FI87237C (en) 1992-12-10
BR8704022A (en) 1988-04-05
TR23786A (en) 1990-09-13
FI873420A0 (en) 1987-08-06
IN167768B (en) 1990-12-15
GR871253B (en) 1988-01-18
FI87237B (en) 1992-08-31

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Owner name: COUNCIL FOR MINERAL TECHNOLOGY