NL8102471A - Werkwijze voor het winnen van wolfraam uit fosfor- bevattende uitgangsmaterialen. - Google Patents

Werkwijze voor het winnen van wolfraam uit fosfor- bevattende uitgangsmaterialen. Download PDF

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Publication number
NL8102471A
NL8102471A NL8102471A NL8102471A NL8102471A NL 8102471 A NL8102471 A NL 8102471A NL 8102471 A NL8102471 A NL 8102471A NL 8102471 A NL8102471 A NL 8102471A NL 8102471 A NL8102471 A NL 8102471A
Authority
NL
Netherlands
Prior art keywords
carbonate
phosphate
tungsten
phosphorus
tungstate
Prior art date
Application number
NL8102471A
Other languages
English (en)
Dutch (nl)
Original Assignee
Starck Hermann C Fa
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 Starck Hermann C Fa filed Critical Starck Hermann C Fa
Publication of NL8102471A publication Critical patent/NL8102471A/nl

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Classifications

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

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
NL8102471A 1980-06-24 1981-05-20 Werkwijze voor het winnen van wolfraam uit fosfor- bevattende uitgangsmaterialen. NL8102471A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3023593 1980-06-24
DE3023593A DE3023593C2 (de) 1980-06-24 1980-06-24 Verfahren zur Gewinnung von hochreinen Wolframverbindungen aus Alkaliwolframatlösungen, die mit Phosphaten verunreinigt sind

Publications (1)

Publication Number Publication Date
NL8102471A true NL8102471A (nl) 1982-01-18

Family

ID=6105335

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8102471A NL8102471A (nl) 1980-06-24 1981-05-20 Werkwijze voor het winnen van wolfraam uit fosfor- bevattende uitgangsmaterialen.

Country Status (4)

Country Link
US (1) US4349515A (de)
DE (1) DE3023593C2 (de)
GB (1) GB2078700B (de)
NL (1) NL8102471A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6051196A (en) * 1998-02-09 2000-04-18 Osram Sylvania Inc. Purification of phosphorus containing scheelite ore
CN111057840B (zh) * 2019-12-31 2021-05-18 荆门德威格林美钨资源循环利用有限公司 一种从粗钨酸钠溶液中高效除硅、磷的方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1399705A (en) * 1917-08-07 1921-12-06 John B Ekeley Process for obtaining pure tungstates
US1388857A (en) * 1918-09-30 1921-08-30 Giles David John Process of extracting tungsten and similar metals from their ores
US2388306A (en) * 1943-01-23 1945-11-06 Us Vanadium Corp Method of treating tungstate solutions
US2394362A (en) * 1943-03-30 1946-02-05 Us Vanadium Corp Treatment of tungsten ores
US2351678A (en) * 1943-11-03 1944-06-20 Robert G Hall Process for the recovery of tungsten from its ores
US2894814A (en) * 1956-09-28 1959-07-14 Wah Chang Corp Purification of tungstates
US2893832A (en) * 1957-11-18 1959-07-07 Wah Chang Corp Purification of tungstates
US4273745A (en) * 1979-10-03 1981-06-16 Amax Inc. Production of molybdenum oxide from ammonium molybdate solutions

Also Published As

Publication number Publication date
GB2078700B (en) 1983-06-08
DE3023593C2 (de) 1986-08-07
DE3023593A1 (de) 1982-01-14
GB2078700A (en) 1982-01-13
US4349515A (en) 1982-09-14

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BV The patent application has lapsed