DE3575906D1 - Verfahren zur herstellung von kristallinem ammoniummetawolframat. - Google Patents

Verfahren zur herstellung von kristallinem ammoniummetawolframat.

Info

Publication number
DE3575906D1
DE3575906D1 DE8585114651T DE3575906T DE3575906D1 DE 3575906 D1 DE3575906 D1 DE 3575906D1 DE 8585114651 T DE8585114651 T DE 8585114651T DE 3575906 T DE3575906 T DE 3575906T DE 3575906 D1 DE3575906 D1 DE 3575906D1
Authority
DE
Germany
Prior art keywords
solution
ammonium
ammonium metatungstate
producing crystalline
tolframate
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 - Fee Related
Application number
DE8585114651T
Other languages
English (en)
Inventor
Tai K Kim
Martin B Macinnis
Robert P Mcclintic
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.)
Osram Sylvania Inc
Original Assignee
GTE Products Corp
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 GTE Products Corp filed Critical GTE Products Corp
Application granted granted Critical
Publication of DE3575906D1 publication Critical patent/DE3575906D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G41/00—Compounds of tungsten

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Powder Metallurgy (AREA)
DE8585114651T 1985-02-25 1985-11-18 Verfahren zur herstellung von kristallinem ammoniummetawolframat. Expired - Fee Related DE3575906D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/704,843 US4612182A (en) 1985-02-25 1985-02-25 Method of producing crystalline ammonium metatungstate

Publications (1)

Publication Number Publication Date
DE3575906D1 true DE3575906D1 (de) 1990-03-15

Family

ID=24831090

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8585114651T Expired - Fee Related DE3575906D1 (de) 1985-02-25 1985-11-18 Verfahren zur herstellung von kristallinem ammoniummetawolframat.
DE198585114651T Pending DE192824T1 (de) 1985-02-25 1985-11-18 Verfahren zur herstellung von kristallinem ammoniummetawolframat.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE198585114651T Pending DE192824T1 (de) 1985-02-25 1985-11-18 Verfahren zur herstellung von kristallinem ammoniummetawolframat.

Country Status (7)

Country Link
US (1) US4612182A (de)
EP (1) EP0192824B1 (de)
JP (1) JPH0623047B2 (de)
KR (1) KR920010086B1 (de)
AT (1) ATE50234T1 (de)
CA (1) CA1238473A (de)
DE (2) DE3575906D1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4211244B2 (ja) 2001-06-18 2009-01-21 いすゞ自動車株式会社 変速操作装置
US7794686B2 (en) 2008-08-12 2010-09-14 Tdy Industries, Inc. Method for making ammonium metatungstate
CN103318962A (zh) * 2013-03-25 2013-09-25 赣县安美特钨制品有限公司 一种偏钨酸铵的生产方法
CN111517367A (zh) * 2020-04-07 2020-08-11 厦门钨业股份有限公司 制备高纯仲钨酸铵的方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3175881A (en) * 1962-07-10 1965-03-30 Sylvania Electric Prod Method of producing crystalline ammonium metatungstate
FR1356164A (fr) * 1963-05-07 1964-03-20 Pechiney Prod Chimiques Sa Procédé de préparation de métatungstate d'ammonium cristallisé
US3472613A (en) * 1966-03-22 1969-10-14 Kewanee Oil Co Process for converting ammonium paratungstate to a more soluble form
US3956474A (en) * 1975-01-27 1976-05-11 Gte Sylvania Incorporated Process for producing ammonium metatungstate from ammonium tungstate by digestion in silica
US4504461A (en) * 1983-09-02 1985-03-12 Amax Inc. Process for producing ammonium metatungstate

Also Published As

Publication number Publication date
EP0192824A1 (de) 1986-09-03
DE192824T1 (de) 1986-12-18
ATE50234T1 (de) 1990-02-15
US4612182A (en) 1986-09-16
KR920010086B1 (ko) 1992-11-14
JPH0623047B2 (ja) 1994-03-30
JPS61201624A (ja) 1986-09-06
EP0192824B1 (de) 1990-02-07
CA1238473A (en) 1988-06-28
KR860006400A (ko) 1986-09-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee