SU416317A1 - - Google Patents

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Publication number
SU416317A1
SU416317A1 SU1763663A SU1763663A SU416317A1 SU 416317 A1 SU416317 A1 SU 416317A1 SU 1763663 A SU1763663 A SU 1763663A SU 1763663 A SU1763663 A SU 1763663A SU 416317 A1 SU416317 A1 SU 416317A1
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SU
USSR - Soviet Union
Prior art keywords
tungsten
molybdenum
producing
reaction gases
fluoride
Prior art date
Application number
SU1763663A
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Russian (ru)
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Publication date
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Priority to SU1763663A priority Critical patent/SU416317A1/ru
Application granted granted Critical
Publication of SU416317A1 publication Critical patent/SU416317A1/ru

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  • Manufacture And Refinement Of Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Description

1one

Изобретение относитс  к способам получени  гексофторидов молибдена и вольфрама и может быть использовано в технологии получени  чистых металлических молибдена и вольфрама.The invention relates to methods for producing molybdenum and tungsten hexofluorides and can be used in the technology for producing pure metallic molybdenum and tungsten.

Известен снособ получени  гексафторидов молибдена и вольфрама путем фторировани  их кислородсодержащих соединений при 250- 1000°С с последующим раздельным выделением Продуктов фторировани  из реакционных газов конденсацией и повторным фторированием фракции, содержащей оксотетрафториды Молибдена и вольфрама, при 400-1000°С.A method for producing molybdenum and tungsten hexafluorides is known by fluorinating their oxygen-containing compounds at 250-1000 ° C, followed by separate separation of the fluorination products from the reaction gases by condensation and repeated fluorination of the fraction containing molybdenum and tungsten oxotetrafluorides at 400-1000 ° C.

Однако известный способ сложен из-за необходимости введени  операций .конденсации, испарени  и дофторировани  оксотетрафториДОВ .However, the known method is complicated because of the need to introduce operations of condensation, evaporation and refluorination of oxotetrafluorides.

Цель изобретени  - упрощение процесса.The purpose of the invention is to simplify the process.

Дл  этого реакционные газы перед выделением из них конечных продуктов контактируют с фторидом щелочного металла, например -натри , при 200-500°С.To this end, the reaction gases, before isolating the end products from them, are contacted with alkali metal fluoride, for example, sodium, at 200-500 ° C.

П р и м е р. Чистый в количестве 180 г загружают в щнековый реактор с электрообогревом и обрабатывают фтором при PRI me R. A net amount of 180 g is loaded into an electrically heated shnek reactor and treated with fluorine at

22

. Отход щие из этого реактора газы направл ют в другой шнековый реактор, со.держащий около 100 г гранулированного фторида натри  и имеющий температуру стенок 450°С. Выдел ющийс  гексафторнд вольфрама улавливают нри 100°С в колонке, заполненной гранулированным фтори ом натри , а газы после колонки щмгтрализуют в 1целоч1юм адсорбере. По окончании процесса получено около 50 г фтористого кальци , содержащего менее 0,1% вольфрама, и 185 г гсксафтори.да вольфрама (выхо.д около 99%).. The gases leaving this reactor are sent to another screw reactor containing about 100 grams of granulated sodium fluoride and having a wall temperature of 450 ° C. The precipitated hexafluorund tungsten is captured at 100 ° C in a column filled with granular sodium fluoride, and the gases after the column are crystallized into 1 whole adsorber. At the end of the process, about 50 g of calcium fluoride containing less than 0.1% of tungsten and 185 g of Hxafluoride.d tungsten (output about 99%) was obtained.

Предмет изобретени Subject invention

Сиособ получени  гексафторидов молнбдена и вольфрама путем фторировани  их кислородсодержани1х соединений элементарным фтором прн нагревании свьине 250°С с носледующим выделением конечных нродуктов нз реакционных газов, о т л н ч а ю тц н и с   тем, что, с целью упрощени  процесса, реакционные газы перед выделеннем из них конечных продуктов контактируют с фторидом щелочного металла, например натрн , прп 200- 500°С.A method for producing molnbden and tungsten hexafluorides by fluorinating their oxygen-containing compounds with elemental fluorine is heated by a swine 250 ° C with the next release of final products from the reaction gases, so that, in order to simplify the process, the reaction gases prior to the isolation of the final products, they are contacted with alkali metal fluoride, for example, sodium, 200–500 ° C.

SU1763663A 1972-03-22 1972-03-22 SU416317A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1763663A SU416317A1 (en) 1972-03-22 1972-03-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1763663A SU416317A1 (en) 1972-03-22 1972-03-22

Publications (1)

Publication Number Publication Date
SU416317A1 true SU416317A1 (en) 1974-02-25

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ID=20507850

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1763663A SU416317A1 (en) 1972-03-22 1972-03-22

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SU (1) SU416317A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4275046A (en) * 1978-01-16 1981-06-23 Exxon Research & Engineering Co. Preparation of high surface area metal fluorides and metal oxyfluorides, especially aluminum fluoride extrudates
CN103449525A (en) * 2013-08-30 2013-12-18 核工业理化工程研究院华核新技术开发公司 Preparation method of molybdenum hexafluoride

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4275046A (en) * 1978-01-16 1981-06-23 Exxon Research & Engineering Co. Preparation of high surface area metal fluorides and metal oxyfluorides, especially aluminum fluoride extrudates
CN103449525A (en) * 2013-08-30 2013-12-18 核工业理化工程研究院华核新技术开发公司 Preparation method of molybdenum hexafluoride
CN103449525B (en) * 2013-08-30 2015-05-13 核工业理化工程研究院华核新技术开发公司 Preparation method of molybdenum hexafluoride

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