DE3238365C2 - - Google Patents

Info

Publication number
DE3238365C2
DE3238365C2 DE3238365A DE3238365A DE3238365C2 DE 3238365 C2 DE3238365 C2 DE 3238365C2 DE 3238365 A DE3238365 A DE 3238365A DE 3238365 A DE3238365 A DE 3238365A DE 3238365 C2 DE3238365 C2 DE 3238365C2
Authority
DE
Germany
Legal status (The legal status 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 status listed.)
Expired
Application number
DE3238365A
Other versions
DE3238365A1 (de
Inventor
Thomas Robert Houghton Johannesburg Transvaal Za Curr
Nicholas Adrian Randburg Transvaal Za Barcza
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
COUNCIL FOR MINERAL TECHNOLOGY RANDBURG TRANSVAAL ZA
MIDDELBURG STEEL AND ALLOYS Pty Ltd SANDOWN TRANSVAAL ZA
Original Assignee
COUNCIL FOR MINERAL TECHNOLOGY RANDBURG TRANSVAAL ZA
MIDDELBURG STEEL AND ALLOYS Pty Ltd SANDOWN TRANSVAAL ZA
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 COUNCIL FOR MINERAL TECHNOLOGY RANDBURG TRANSVAAL ZA, MIDDELBURG STEEL AND ALLOYS Pty Ltd SANDOWN TRANSVAAL ZA filed Critical COUNCIL FOR MINERAL TECHNOLOGY RANDBURG TRANSVAAL ZA
Publication of DE3238365A1 publication Critical patent/DE3238365A1/de
Application granted granted Critical
Publication of DE3238365C2 publication Critical patent/DE3238365C2/de
Granted legal-status Critical Current

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
    • C21B13/12—Making spongy iron or liquid steel, by direct processes in electric furnaces
    • C21B13/125—By using plasma
    • 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
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • C22B4/005—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys using plasma jets
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C35/00—Master alloys for iron or steel
    • C22C35/005—Master alloys for iron or steel based on iron, e.g. ferro-alloys

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacture Of Iron (AREA)
  • Semiconductor Lasers (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Drying Of Semiconductors (AREA)
DE19823238365 1981-10-19 1982-10-16 Verfahren zur herstellung oder behandlung von ferrochrom Granted DE3238365A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA817210 1981-10-19

Publications (2)

Publication Number Publication Date
DE3238365A1 DE3238365A1 (de) 1983-05-26
DE3238365C2 true DE3238365C2 (de) 1987-04-02

Family

ID=25575705

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823238365 Granted DE3238365A1 (de) 1981-10-19 1982-10-16 Verfahren zur herstellung oder behandlung von ferrochrom

Country Status (22)

Country Link
US (1) US4441921A (de)
JP (1) JPS58136746A (de)
AT (1) AT382640B (de)
AU (1) AU552070B2 (de)
BR (1) BR8206066A (de)
CA (1) CA1199498A (de)
DE (1) DE3238365A1 (de)
ES (1) ES8308932A1 (de)
FI (1) FI69647C (de)
FR (1) FR2514789B1 (de)
GB (1) GB2111532B (de)
GR (1) GR76910B (de)
IN (1) IN159762B (de)
IT (1) IT1153270B (de)
MX (1) MX160517A (de)
NO (1) NO157261C (de)
RO (1) RO89014A (de)
SE (1) SE460909B (de)
TR (1) TR21798A (de)
WO (1) WO1983001461A1 (de)
YU (1) YU42808B (de)
ZW (1) ZW22182A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0791616B2 (ja) * 1987-05-12 1995-10-04 日新製鋼株式会社 半還元クロムペレットを用いたステンレス鋼の溶製方法
US5342589A (en) * 1992-09-22 1994-08-30 Minnesota Mining And Manufacturing Company Process for converting chromium dioxide magnetic pigment particles into nonmagnetic chromium (III) oxide
US9080235B2 (en) 2012-04-17 2015-07-14 Jamar International Corporation Composition and method for diffusion alloying of ferrocarbon workpiece

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL266640A (de) * 1960-08-01 1900-01-01
US3301669A (en) * 1964-02-27 1967-01-31 Vanadium Corp Of America Production of a high chromium containing ferrochrome
US3523021A (en) * 1967-05-23 1970-08-04 Spiridon Iosipovich Khitrik Method of refining ferrochrome
US3615349A (en) * 1968-01-10 1971-10-26 William Bleloch Production of alloys of iron
SE388210B (sv) * 1973-01-26 1976-09-27 Skf Svenska Kullagerfab Ab Sett vid reduktion av metall ur metalloxider
CA1057960A (en) * 1975-02-26 1979-07-10 Westinghouse Electric Corporation Method of ore reduction with an arc heater
US3997333A (en) * 1975-02-26 1976-12-14 Westinghouse Electric Corporation Process for the reduction of complex metallic ores
US3992193A (en) * 1975-03-10 1976-11-16 Westinghouse Electric Corporation Metal powder production by direct reduction in an arc heater
CA1055553A (en) * 1975-04-16 1979-05-29 Tibur Metals Ltd. Extended arc furnace and process for melting particulate charge therein
US4148628A (en) * 1977-02-18 1979-04-10 Toyo Soda Manufacturing Co., Ltd. Process of producing metallic chromium
SE429561B (sv) * 1980-06-10 1983-09-12 Skf Steel Eng Ab Sett for kontinuerlig framstellning av lagkolhaltiga kromstal av kromoxidhaltiga utgangsmaterial med hjelp av en plasmagenerator

Also Published As

Publication number Publication date
AU552070B2 (en) 1986-05-22
US4441921A (en) 1984-04-10
AU8928182A (en) 1983-04-28
AT382640B (de) 1987-03-25
RO89014A (ro) 1986-04-30
TR21798A (tr) 1985-07-17
FR2514789B1 (fr) 1986-05-09
FR2514789A1 (fr) 1983-04-22
NO157261C (no) 1988-02-17
NO157261B (no) 1987-11-09
FI823523A0 (fi) 1982-10-15
JPH0432142B2 (de) 1992-05-28
NO823424L (no) 1983-04-20
DE3238365A1 (de) 1983-05-26
IT8223822A0 (it) 1982-10-19
SE8205894D0 (sv) 1982-10-18
ATA383882A (de) 1986-08-15
FI69647B (fi) 1985-11-29
SE460909B (sv) 1989-12-04
CA1199498A (en) 1986-01-21
YU233782A (en) 1985-03-20
ZW22182A1 (en) 1983-01-19
WO1983001461A1 (en) 1983-04-28
GR76910B (de) 1984-09-04
IN159762B (de) 1987-06-06
IT1153270B (it) 1987-01-14
SE8205894L (sv) 1983-04-20
GB2111532B (en) 1986-09-03
FI823523L (fi) 1983-04-20
ES516605A0 (es) 1983-10-01
JPS58136746A (ja) 1983-08-13
FI69647C (fi) 1986-03-10
GB2111532A (en) 1983-07-06
MX160517A (es) 1990-03-15
YU42808B (en) 1988-12-31
ES8308932A1 (es) 1983-10-01
BR8206066A (pt) 1983-09-13

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Legal Events

Date Code Title Description
OR8 Request for search as to paragraph 43 lit. 1 sentence 1 patent law
8105 Search report available
8126 Change of the secondary classification

Free format text: C22B 4/06 C21B 13/02

8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: C21B 13/02

D2 Grant after examination
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: STOLBERG-WERNIGERODE, GRAF ZU, U., DIPL.-CHEM. DR.RER.NAT. SUCHANTKE, J., DIPL.-ING. HUBER, A., DIPL.-ING. KAMEKE, VON, A., DIPL.-CHEM. DR.RER.NAT., PAT.-ANWAELTE, 2000 HAMBURG