GB932168A - Method for the production of tungsten and molybdenum - Google Patents

Method for the production of tungsten and molybdenum

Info

Publication number
GB932168A
GB932168A GB4042660A GB4042660A GB932168A GB 932168 A GB932168 A GB 932168A GB 4042660 A GB4042660 A GB 4042660A GB 4042660 A GB4042660 A GB 4042660A GB 932168 A GB932168 A GB 932168A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
deg
zinc
hydrogen
oxide
molybdenum
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
GB4042660A
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.)
MASASHI OKAGE
Original Assignee
MASASHI OKAGE
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

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00Obtaining refractory metals
    • C22B34/30Obtaining chromium, molybdenum or tungsten

Abstract

A tungsten oxide and/or ammonium paratungstate or a molybdenum oxide and/or ammonium paramolybdate mixed with zinc is heated to 750 DEG -850 DEG C. in a non-oxidizing atmosphere such as hydrogen, nitrogen or coal-gas to give zinc oxide and metallic tungsten or molybdenum.ALSO:A method for producing tungsten or molybdenum comprises mixing a tungsten oxide and/or ammonium paratungstate, or a molybdenum oxide and/or ammonium para-molybdate with zinc and heating the mixture to 750-850 DEG C. in a non-oxidizing atmosphere such as hydrogen, nitrogen or coal-gas. The zinc oxide may be recovered by treating it with HCl or H2SO4 to give zinc chloride or sulphate or it may be treated with hydrogen to give zinc, which may be reused, and water vapour. The hydrogen reduction may be carried out instantaneously so that less than the stoichiometric quantity of zinc may be used. A rotary kiln may be used having zones at 400 DEG , 800 DEG and 950 DEG C., the ores being passed 400 DEG --> 800 DEG --> 950 DEG and the hydrogen in the opposite direction.
GB4042660A 1959-12-12 1960-11-24 Method for the production of tungsten and molybdenum Expired GB932168A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP3857959 1959-12-12
JP3911059 1959-12-17

Publications (1)

Publication Number Publication Date
GB932168A true true GB932168A (en) 1963-07-24

Family

ID=26377841

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4042660A Expired GB932168A (en) 1959-12-12 1960-11-24 Method for the production of tungsten and molybdenum

Country Status (1)

Country Link
GB (1) GB932168A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480428A (en) * 1967-02-07 1969-11-25 Gerhard Jangg Process for the production of molybdenum and tungsten and their alloys using amalgams
FR2514369A1 (en) * 1981-10-08 1983-04-15 Westinghouse Electric Corp A method of reducing a metal oxide in a metal powder
EP1162281A1 (en) * 2000-06-09 2001-12-12 Harper International Corp. Continous single stage process for the production of molybdenum metal
EP1308526A1 (en) * 2001-11-06 2003-05-07 Cyprus Amax Minerals Company Process for the production of molybdenum metal
US7192467B2 (en) 2001-11-06 2007-03-20 Climax Engineered Materials, Llc Method for producing molybdenum metal and molybdenum metal
US8043406B2 (en) 2004-10-21 2011-10-25 Climax Engineered Materials, Llc Molybdenum metal powder
RU2513327C1 (en) * 2013-04-09 2014-04-20 Федеральное государственное бюджетное учреждение науки Институт металлургии и материаловедения им. А.А. Байкова Российской академии наук (ИМЕТ РАН) Method of loparite concentrate processing

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480428A (en) * 1967-02-07 1969-11-25 Gerhard Jangg Process for the production of molybdenum and tungsten and their alloys using amalgams
FR2514369A1 (en) * 1981-10-08 1983-04-15 Westinghouse Electric Corp A method of reducing a metal oxide in a metal powder
EP1162281A1 (en) * 2000-06-09 2001-12-12 Harper International Corp. Continous single stage process for the production of molybdenum metal
EP1308526A1 (en) * 2001-11-06 2003-05-07 Cyprus Amax Minerals Company Process for the production of molybdenum metal
US6626976B2 (en) 2001-11-06 2003-09-30 Cyprus Amax Minerals Company Method for producing molybdenum metal
US7132005B2 (en) 2001-11-06 2006-11-07 Cyprus Amax Minerals Company Molybdenum metal
US7192467B2 (en) 2001-11-06 2007-03-20 Climax Engineered Materials, Llc Method for producing molybdenum metal and molybdenum metal
US7625421B2 (en) 2001-11-06 2009-12-01 Cyprus Amax Mineral Company Molybdenum metal powders
US8043406B2 (en) 2004-10-21 2011-10-25 Climax Engineered Materials, Llc Molybdenum metal powder
US8043405B2 (en) 2004-10-21 2011-10-25 Climax Engineered Materials, Llc Densified molybdenum metal powder
US8147586B2 (en) 2004-10-21 2012-04-03 Climax Engineered Materials, Llc Method for producing molybdenum metal powder
RU2513327C1 (en) * 2013-04-09 2014-04-20 Федеральное государственное бюджетное учреждение науки Институт металлургии и материаловедения им. А.А. Байкова Российской академии наук (ИМЕТ РАН) Method of loparite concentrate processing

Similar Documents

Publication Publication Date Title
Wildervanck et al. Preparation and crystallinity of molybdenum and tungsten sulfides
Taylor Preparation of Anhydrous Lanthanon Halides.
US4446031A (en) Sewage treatment composition its manufacture and use
Croft New molecular compounds of the layer lattice type. III. The intercalation of metal sulphides and oxides in graphite
US2752301A (en) Recovery of chromium and iron values from chromium-iron ores
US1845342A (en) Treatment of titanium and iron containing materials
US4125586A (en) Removal of AlCl3 from crude TiCl4 by addition of H2 O and NaCl
US1501873A (en) Manufacture of red oxide of iron
US2291206A (en) Production of metallic oxides
US2766112A (en) Production of metallic tantalum and metallic niobium from mixtures of compounds thereof
Opalovskii et al. Molybdenum chalcogenides
US3803287A (en) Method for producing titanium concentrate
US2167784A (en) Method of treating iron fluoride
US2733126A (en) Ukanium liberation
US2848303A (en) Production of lower oxides of titanium
INO et al. Mössbauer Effect Study of the Iron-Carbon Martensite and Its Tempering Process
US2752299A (en) Electrolytic production of manganese and ferromanganese
US2282124A (en) Production of iron from iron oxide
US3967954A (en) Pre-leaching or reduction treatment in the beneficiation of titaniferous iron ores
US1963105A (en) Method for the production of cuprous oxide
CN1290651A (en) Method for preparing sulfur with recovered smelting smoke SO2
Bardawil et al. Synthesis of Anhydrous Metal Chlorides by Action of Carbon Tetrachloride on the Metal Sulfides
CN85101989A (en) Technology for preparation of li2co3 by treating lithium-loaded mica with k2so4
US2658813A (en) Process of selectively chloridizing manganese in the treatment of materials containing iron and manganese
US4629607A (en) Process of producing synthetic rutile from titaniferous product having a high reduced titanium oxide content