FR2114234A6 - Low copper aggregate of molybdenum, -prepd at reduced pressure - Google Patents

Low copper aggregate of molybdenum, -prepd at reduced pressure

Info

Publication number
FR2114234A6
FR2114234A6 FR7041707A FR7041707A FR2114234A6 FR 2114234 A6 FR2114234 A6 FR 2114234A6 FR 7041707 A FR7041707 A FR 7041707A FR 7041707 A FR7041707 A FR 7041707A FR 2114234 A6 FR2114234 A6 FR 2114234A6
Authority
FR
France
Prior art keywords
degrees
stage
prepd
molybdenum
reduced pressure
Prior art date
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
FR7041707A
Other languages
French (fr)
Inventor
F Grandjacques
J Montanteme
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.)
Ugine Kuhlmann SA
Original Assignee
Ugine Kuhlmann SA
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
Priority claimed from FR90193A external-priority patent/FR1532288A/en
Application filed by Ugine Kuhlmann SA filed Critical Ugine Kuhlmann SA
Priority to FR7041707A priority Critical patent/FR2114234A6/en
Priority to DE19712156795 priority patent/DE2156795C3/en
Priority to IT7075171A priority patent/IT945797B/en
Priority to GB5393471A priority patent/GB1376937A/en
Priority to SE1487171A priority patent/SE375329B/xx
Priority to BE775536A priority patent/BE775536R/en
Priority to LU64299D priority patent/LU64299A1/xx
Priority to NL7116034A priority patent/NL174374C/en
Publication of FR2114234A6 publication Critical patent/FR2114234A6/en
Application granted granted Critical
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/003—Making ferrous alloys making amorphous alloys
    • 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
    • C22B34/34—Obtaining molybdenum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Mfr. of a porous agglomerate of Mo suitable for adding to molten steel comprises reducing MoO3 contg. as impurities Cu and S to the metal in two stages (to MoO2 and Mo) by heating at is not >500 degrees C in the first stage with a carbonaceous material and in the second stage to 11-1300 degrees C in inert atmosphere as in BE 708726 wherein the gaseous reaction products are evacuated away from the reacting mass, and the second stage is carried out at a pressure of 1 torr of inert gas at 1200-1500 degrees C. The impurities are reduced in quantity while retaining the porosity of the granules, enabling the Mo to be introduced into the steel melt and to dissolve and distribute rapidly.
FR7041707A 1967-01-06 1970-11-20 Low copper aggregate of molybdenum, -prepd at reduced pressure Expired FR2114234A6 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7041707A FR2114234A6 (en) 1967-01-06 1970-11-20 Low copper aggregate of molybdenum, -prepd at reduced pressure
DE19712156795 DE2156795C3 (en) 1970-11-20 1971-11-16 Process for the production of porous molybdenum briquettes
IT7075171A IT945797B (en) 1970-11-20 1971-11-16 MOLYBDENUM AGGLOMERATES FOR STEEL YESTERDAY AND PROCEDURE FOR THEIR MANUFACTURING
SE1487171A SE375329B (en) 1970-11-20 1971-11-19
GB5393471A GB1376937A (en) 1970-11-20 1971-11-19 Agglomerates of molybdenum for application in steel making and their production process
BE775536A BE775536R (en) 1970-11-20 1971-11-19 MOLYBDENE AGGLOMERS FOR USE IN STEEL AND THEIR PROCESS FOR
LU64299D LU64299A1 (en) 1970-11-20 1971-11-19
NL7116034A NL174374C (en) 1970-11-20 1971-11-22 PROCESS FOR PREPARING POROUS METALLIC MOLYBDENE CONTAINING AGGLOMERATES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR90193A FR1532288A (en) 1967-01-06 1967-01-06 Molybdenum agglomerates for use in steelworks and process for their manufacture
FR7041707A FR2114234A6 (en) 1967-01-06 1970-11-20 Low copper aggregate of molybdenum, -prepd at reduced pressure

Publications (1)

Publication Number Publication Date
FR2114234A6 true FR2114234A6 (en) 1972-06-30

Family

ID=26174482

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7041707A Expired FR2114234A6 (en) 1967-01-06 1970-11-20 Low copper aggregate of molybdenum, -prepd at reduced pressure

Country Status (1)

Country Link
FR (1) FR2114234A6 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53129112A (en) * 1977-04-18 1978-11-10 Daido Steel Co Ltd Method of producing molybdenum metal
JPS541214A (en) * 1977-06-04 1979-01-08 Daido Steel Co Ltd Method of producing highhpurity metallic molybdenum
WO2023118432A1 (en) 2021-12-22 2023-06-29 Faurecia Systemes D'echappement Hydrogen storage and supply device and corresponding assembly
WO2023118423A1 (en) 2021-12-22 2023-06-29 Faurecia Systemes D'echappement Hydrogen storage and supply device and corresponding assembly
WO2023118371A1 (en) 2021-12-22 2023-06-29 Faurecia Systemes D'echappement Cryogenic fluid storage assembly
WO2023118377A1 (en) 2021-12-22 2023-06-29 Faurecia Systemes D'echappement Cryogenic fluid storage unit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53129112A (en) * 1977-04-18 1978-11-10 Daido Steel Co Ltd Method of producing molybdenum metal
JPS541214A (en) * 1977-06-04 1979-01-08 Daido Steel Co Ltd Method of producing highhpurity metallic molybdenum
WO2023118432A1 (en) 2021-12-22 2023-06-29 Faurecia Systemes D'echappement Hydrogen storage and supply device and corresponding assembly
WO2023118423A1 (en) 2021-12-22 2023-06-29 Faurecia Systemes D'echappement Hydrogen storage and supply device and corresponding assembly
WO2023118371A1 (en) 2021-12-22 2023-06-29 Faurecia Systemes D'echappement Cryogenic fluid storage assembly
WO2023118377A1 (en) 2021-12-22 2023-06-29 Faurecia Systemes D'echappement Cryogenic fluid storage unit

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