GB609487A - Improved method of and apparatus for reducing ammonium molybdate - Google Patents

Improved method of and apparatus for reducing ammonium molybdate

Info

Publication number
GB609487A
GB609487A GB14556/45A GB1455645A GB609487A GB 609487 A GB609487 A GB 609487A GB 14556/45 A GB14556/45 A GB 14556/45A GB 1455645 A GB1455645 A GB 1455645A GB 609487 A GB609487 A GB 609487A
Authority
GB
United Kingdom
Prior art keywords
tube
connection
furnace
low end
ammonium molybdate
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
GB14556/45A
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.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International Co
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 Westinghouse Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB609487A publication Critical patent/GB609487A/en
Expired legal-status Critical Current

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
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/34—Obtaining molybdenum

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

609,487. Furnace atmospheres. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 8, 1945, No. 14556. Convention date, Oct. 1, 1941. [Class 51 (ii)] [Also in Group II] Apparatus for the reduction of ammonium molybdate (see Group II) comprises a furnace 11, an inclined reduction tube 13 of refractory material passing into and adapted to be heated by the furnace, means 25 and 26 for closing the ends of the said tube and for opening said ends, whereby material to be reduced is admitted at the high end and withdrawn reduced at the low end, a connection 14 for introducing graduated amounts of an inert gas to the said tube adjacent the low end thereof, for a connection 22 for introducing a reducing gas to the said tube adjacent the high end thereof and a connection 24 for withdrawing surplus reducing gas from the said tube adjacent the low end thereof, for return to the supply. As shown the apparatus is adapted to use steam as the inert gas, supplied in the form of water. Water is supplied from constant level reservoir 15 through control valve 18 and gauged capillary tube 19 in sight glass 21 to connection 14.
GB14556/45A 1941-10-01 1945-06-08 Improved method of and apparatus for reducing ammonium molybdate Expired GB609487A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US609487XA 1941-10-01 1941-10-01

Publications (1)

Publication Number Publication Date
GB609487A true GB609487A (en) 1948-10-01

Family

ID=22032736

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14556/45A Expired GB609487A (en) 1941-10-01 1945-06-08 Improved method of and apparatus for reducing ammonium molybdate

Country Status (1)

Country Link
GB (1) GB609487A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547220A (en) * 1984-04-24 1985-10-15 Amax Inc. Reduction of MoO3 and ammonium molybdates by ammonia in a rotary furnace
CN108531731A (en) * 2018-06-27 2018-09-14 孙院军 A kind of bottom reduction apparatus and the restoring method using the device
CN114309639A (en) * 2022-01-07 2022-04-12 郑州大学 Environment-friendly process for preparing molybdenum powder by ammonia gas and hydrogen gas relay reduction of ammonium molybdate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547220A (en) * 1984-04-24 1985-10-15 Amax Inc. Reduction of MoO3 and ammonium molybdates by ammonia in a rotary furnace
CN108531731A (en) * 2018-06-27 2018-09-14 孙院军 A kind of bottom reduction apparatus and the restoring method using the device
CN114309639A (en) * 2022-01-07 2022-04-12 郑州大学 Environment-friendly process for preparing molybdenum powder by ammonia gas and hydrogen gas relay reduction of ammonium molybdate

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