RO81690B1 - Procedeu de obtinere a parawolframatului de amoniu din deseuri de wolfram - Google Patents

Procedeu de obtinere a parawolframatului de amoniu din deseuri de wolfram

Info

Publication number: RO81690B1
Authority: RO; Romania
Prior art keywords: ammonium paratungstate; wolfram; ammonia; tungsten; solution
Prior art date: 1981-02-09

Application number

RO103355A

Other languages

English (en)

Romanian (ro)

Other versions

RO81690A2 (fr

Inventor

Ioan Ciogolas

Original Assignee

îNTREPRINDEREA "SINTEROM"

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.)

1981-02-09

Filing date

1981-02-09

Publication date

1983-04-30

1981-02-09 Application filed by îNTREPRINDEREA "SINTEROM" filed Critical îNTREPRINDEREA "SINTEROM"

1981-02-09 Priority to RO103355A priority Critical patent/RO81690B1/ro

1983-04-29 Publication of RO81690A2 publication Critical patent/RO81690A2/fr

1983-04-30 Publication of RO81690B1 publication Critical patent/RO81690B1/ro

Links

WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title abstract 5
XAYGUHUYDMLJJV-UHFFFAOYSA-Z decaazanium;dioxido(dioxo)tungsten;hydron;trioxotungsten Chemical compound [H+].[H+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O XAYGUHUYDMLJJV-UHFFFAOYSA-Z 0.000 title abstract 3
239000002699 waste material Substances 0.000 title abstract 3
238000004519 manufacturing process Methods 0.000 title 1
ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten(VI) oxide Inorganic materials O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 abstract 6
QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 4
RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 2
LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 2
KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 abstract 2
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 2
229910021529 ammonia Inorganic materials 0.000 abstract 2
238000004090 dissolution Methods 0.000 abstract 2
XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 abstract 2
239000002244 precipitate Substances 0.000 abstract 2
229910052721 tungsten Inorganic materials 0.000 abstract 2
239000010937 tungsten Substances 0.000 abstract 2
GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
235000019441 ethanol Nutrition 0.000 abstract 1
238000001704 evaporation Methods 0.000 abstract 1
230000008020 evaporation Effects 0.000 abstract 1
238000001914 filtration Methods 0.000 abstract 1
238000000034 method Methods 0.000 abstract 1
239000000203 mixture Substances 0.000 abstract 1
229910017604 nitric acid Inorganic materials 0.000 abstract 1
230000001376 precipitating effect Effects 0.000 abstract 1
238000002360 preparation method Methods 0.000 abstract 1
229920006395 saturated elastomer Polymers 0.000 abstract 1
238000000926 separation method Methods 0.000 abstract 1
238000005406 washing Methods 0.000 abstract 1

Landscapes

Inorganic Compounds Of Heavy Metals (AREA)

RO103355A 1981-02-09 1981-02-09 Procedeu de obtinere a parawolframatului de amoniu din deseuri de wolfram RO81690B1 (ro)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
RO103355A RO81690B1 (ro)	1981-02-09	1981-02-09	Procedeu de obtinere a parawolframatului de amoniu din deseuri de wolfram

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
RO103355A RO81690B1 (ro)	1981-02-09	1981-02-09	Procedeu de obtinere a parawolframatului de amoniu din deseuri de wolfram

Publications (2)

Publication Number	Publication Date
RO81690A2 RO81690A2 (fr)	1983-04-29
RO81690B1 true RO81690B1 (ro)	1983-04-30

Family

ID=20109530

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
RO103355A RO81690B1 (ro)	1981-02-09	1981-02-09	Procedeu de obtinere a parawolframatului de amoniu din deseuri de wolfram

Country Status (1)

Country	Link
RO (1)	RO81690B1 (fr)

1981
- 1981-02-09 RO RO103355A patent/RO81690B1/ro unknown

Also Published As

Publication number	Publication date
RO81690A2 (fr)	1983-04-29

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