BR8903941A - Processo e dispositivo para preparacao de ferro-cromo - Google Patents

Processo e dispositivo para preparacao de ferro-cromo

Info

Publication number
BR8903941A
BR8903941A BR898903941A BR8903941A BR8903941A BR 8903941 A BR8903941 A BR 8903941A BR 898903941 A BR898903941 A BR 898903941A BR 8903941 A BR8903941 A BR 8903941A BR 8903941 A BR8903941 A BR 8903941A
Authority
BR
Brazil
Prior art keywords
preparing iron
iron chrome
chrome
preparing
iron
Prior art date
Application number
BR898903941A
Other languages
English (en)
Portuguese (pt)
Inventor
Wilhelm Janssen
Klaus Ulrich
Original Assignee
Krupp Gmbh
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 Krupp Gmbh filed Critical Krupp Gmbh
Publication of BR8903941A publication Critical patent/BR8903941A/pt

Links

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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/02—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories or equipment specially adapted for rotary-drum furnaces
    • F27B7/2016—Arrangements of preheating devices for the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories or equipment specially adapted for rotary-drum furnaces
    • F27B7/38—Arrangements of cooling devices
    • F27B7/383—Cooling devices for the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
BR898903941A 1988-08-06 1989-08-04 Processo e dispositivo para preparacao de ferro-cromo BR8903941A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3826824A DE3826824C1 (enExample) 1988-08-06 1988-08-06

Publications (1)

Publication Number Publication Date
BR8903941A true BR8903941A (pt) 1990-03-20

Family

ID=6360407

Family Applications (1)

Application Number Title Priority Date Filing Date
BR898903941A BR8903941A (pt) 1988-08-06 1989-08-04 Processo e dispositivo para preparacao de ferro-cromo

Country Status (10)

Country Link
US (1) US4981510A (enExample)
AU (1) AU616290B2 (enExample)
BR (1) BR8903941A (enExample)
DE (1) DE3826824C1 (enExample)
FI (1) FI91543C (enExample)
GR (1) GR890100352A (enExample)
SU (1) SU1713440A3 (enExample)
TR (1) TR24296A (enExample)
ZA (1) ZA895954B (enExample)
ZW (1) ZW7989A1 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4406382C2 (de) * 1994-02-26 1997-08-14 Metallgesellschaft Ag Drehkühler zum Kühlen von Schüttgut
JP4167101B2 (ja) * 2003-03-20 2008-10-15 株式会社神戸製鋼所 粒状金属鉄の製法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2805930A (en) * 1953-03-10 1957-09-10 Strategic Udy Metallurg & Chem Process of producing iron from iron-oxide material
US2830891A (en) * 1955-07-22 1958-04-15 Strategic Udy Metallurg & Chem Process for the production of ferromanganese products from manganesebearing materials
US3224871A (en) * 1961-02-24 1965-12-21 Elektrokemisk As Process of preheating ores for reduction in smelting furnace
US3834899A (en) * 1970-12-16 1974-09-10 Japan Metals & Chem Co Ltd Method of manufacturing low-carbon ferrochromium
US3849114A (en) * 1973-09-14 1974-11-19 Showa Denko Kk Process for producing high carbon ferrochrome
US4414026A (en) * 1981-07-30 1983-11-08 Nippon Kokan Kabushiki Kaisha Method for the production of ferrochromium
DE3431854C1 (de) * 1984-08-30 1986-01-09 Fried. Krupp Gmbh, 4300 Essen Verfahren zur Herstellung von Ferrochrom
DE3347685C1 (de) * 1983-12-31 1985-04-04 Fried. Krupp Gmbh, 4300 Essen Verfahren zur Herstellung von Ferromangan
PH22151A (en) * 1983-12-31 1988-06-01 Krupp Gmbh Process for the production of ferrochromium
DE3347686C1 (de) * 1983-12-31 1985-04-18 Fried. Krupp Gmbh, 4300 Essen Verfahren zur Herstellung von Ferrochrom
DE3422267A1 (de) * 1984-06-15 1985-12-19 Fried. Krupp Gmbh, 4300 Essen Verfahren zum beheizen eines reduktionsofens
DE3442245A1 (de) * 1984-11-19 1986-05-28 Japan Metals & Chemicals Co., Ltd., Tokio/Tokyo Verfahren zur herstellung einer legierung mit hohem chromgehalt durch schmelzreduktion
DE3518555C1 (de) * 1985-05-23 1986-01-09 Fried. Krupp Gmbh, 4300 Essen Verfahren zur Reduktion von eisenhaltigen Chromerzen
US4731112A (en) * 1986-02-19 1988-03-15 Midrex International, B.V. Rotterdam, Zurich Branch Method of producing ferro-alloys
DE3713883A1 (de) * 1987-04-25 1988-11-17 Metallgesellschaft Ag Verfahren zur herstellung von ferrochrom

Also Published As

Publication number Publication date
SU1713440A3 (ru) 1992-02-15
ZA895954B (en) 1990-05-30
GR890100352A (el) 1990-08-22
FI91543C (fi) 1994-07-11
FI91543B (fi) 1994-03-31
ZW7989A1 (en) 1989-11-29
AU3887389A (en) 1990-02-08
DE3826824C1 (enExample) 1990-01-04
TR24296A (tr) 1991-07-30
FI893662A0 (fi) 1989-08-02
AU616290B2 (en) 1991-10-24
FI893662A7 (fi) 1990-02-07
US4981510A (en) 1991-01-01

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Legal Events

Date Code Title Description
FB20 Grant procedure suspended (art. 20)
FF Decision: intention to grant
KD Notifcation of receipt (letter patent)
FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 04/08/2009