FI850749A0 - Foerfarande foer anrikning av kromitmalmer. - Google Patents

Foerfarande foer anrikning av kromitmalmer.

Info

Publication number
FI850749A0
FI850749A0 FI850749A FI850749A FI850749A0 FI 850749 A0 FI850749 A0 FI 850749A0 FI 850749 A FI850749 A FI 850749A FI 850749 A FI850749 A FI 850749A FI 850749 A0 FI850749 A0 FI 850749A0
Authority
FI
Finland
Prior art keywords
crystal machine
crystal
machine
Prior art date
Application number
FI850749A
Other languages
English (en)
Other versions
FI75192B (fi
FI850749L (fi
FI75192C (fi
Inventor
Gurudas Samant
Dirk Hankel
Heinz Walden
Original Assignee
Metallgesellschaft Ag
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 Metallgesellschaft Ag filed Critical Metallgesellschaft Ag
Publication of FI850749A0 publication Critical patent/FI850749A0/fi
Publication of FI850749L publication Critical patent/FI850749L/fi
Publication of FI75192B publication Critical patent/FI75192B/fi
Application granted granted Critical
Publication of FI75192C publication Critical patent/FI75192C/fi

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
FI850749A 1984-04-21 1985-02-22 Foerfarande foer anrikning av kromitmalmer. FI75192C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843415105 DE3415105A1 (de) 1984-04-21 1984-04-21 Verfahren zur aufbereitung von chromiterzen
DE3415105 1984-04-21

Publications (4)

Publication Number Publication Date
FI850749A0 true FI850749A0 (fi) 1985-02-22
FI850749L FI850749L (fi) 1985-10-22
FI75192B FI75192B (fi) 1988-01-29
FI75192C FI75192C (fi) 1988-05-09

Family

ID=6234169

Family Applications (1)

Application Number Title Priority Date Filing Date
FI850749A FI75192C (fi) 1984-04-21 1985-02-22 Foerfarande foer anrikning av kromitmalmer.

Country Status (6)

Country Link
DE (1) DE3415105A1 (fi)
FI (1) FI75192C (fi)
IN (1) IN159229B (fi)
PH (1) PH22595A (fi)
ZA (1) ZA852960B (fi)
ZW (1) ZW7285A1 (fi)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2655864B2 (ja) * 1988-03-14 1997-09-24 昭和電工株式会社 高還元クロム鉱石粉体の製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2339793A (en) * 1940-11-23 1944-01-25 Moeklebust Olav Method of treating ferruginous minerals containing other metal constituents
US2905546A (en) * 1957-12-05 1959-09-22 American Chrome Company Chemical upgrading of chromium bearing materials
GB980864A (en) * 1960-01-15 1965-01-20 Laporte Titanium Ltd Improved process for the beneficiation of ores
GB1040443A (en) * 1962-05-02 1966-08-24 Nat Res Dev Treatment of chromite
US3508906A (en) * 1967-08-30 1970-04-28 Foote Mineral Co Beneficiation of chromium ore to reduce the iron content

Also Published As

Publication number Publication date
IN159229B (fi) 1987-04-18
DE3415105A1 (de) 1985-10-31
FI75192B (fi) 1988-01-29
FI850749L (fi) 1985-10-22
FI75192C (fi) 1988-05-09
ZW7285A1 (en) 1986-11-19
ZA852960B (en) 1986-12-30
PH22595A (en) 1988-10-17

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Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: METALLGESELLSCHAFT AKTIENGESELLSCHAFT