RU93004985A - Method of producing anhydrous pentafluorides of niobium and tantalum - Google Patents

Method of producing anhydrous pentafluorides of niobium and tantalum

Info

Publication number
RU93004985A
RU93004985A RU93004985/26A RU93004985A RU93004985A RU 93004985 A RU93004985 A RU 93004985A RU 93004985/26 A RU93004985/26 A RU 93004985/26A RU 93004985 A RU93004985 A RU 93004985A RU 93004985 A RU93004985 A RU 93004985A
Authority
RU
Russia
Prior art keywords
tantalum
niobium
pentafluorides
producing anhydrous
anhydrous
Prior art date
Application number
RU93004985/26A
Other languages
Russian (ru)
Other versions
RU2089505C1 (en
Inventor
Марио Джозеф Наппэ
Original Assignee
Е.И. Дю Пон де Немурс энд Компани
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
Priority claimed from US07/567,815 external-priority patent/US5091168A/en
Application filed by Е.И. Дю Пон де Немурс энд Компани filed Critical Е.И. Дю Пон де Немурс энд Компани
Publication of RU93004985A publication Critical patent/RU93004985A/en
Application granted granted Critical
Publication of RU2089505C1 publication Critical patent/RU2089505C1/en

Links

Claims (1)

Способ получения безводных пентафторидов ниобия и тантала включает реакцию соответствующих пятиокиси или оксигалоида ниобия или тантала с избытком фтористого водорода в присутствии достаточного количества дегидратирующего агента (например COCl2, SOCl2 или SO2Cl2) для связывания образующейся воды. Такой процесс может быть использован для получения каталитически активных безводных пентафторидов ниобия или тантала по существу в одну жидкофазную стадию реакции.The method of producing anhydrous niobium pentafluoride and tantalum involves the reaction of the corresponding niobium or tantalum pentoxide or oxyhalide with an excess of hydrogen fluoride in the presence of a sufficient amount of a dehydrating agent (for example COCl 2 , SOCl 2 or SO 2 Cl 2 ) to bind the water formed. Such a process can be used to obtain catalytically active anhydrous niobium or tantalum pentafluorides in essentially one liquid phase reaction stage.
RU9193004985A 1990-08-15 1991-08-09 Method of synthesis of anhydrous niobium or tantalum pentafluoride RU2089505C1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US567815 1990-08-15
US07/567,815 US5091168A (en) 1990-08-15 1990-08-15 Preparation of anhydrous niobium and tantalum pentafluorides
PCT/US1991/005542 WO1992003382A1 (en) 1990-08-15 1991-08-09 Preparation of anhydrous niobium and tantalum pentafluorides

Publications (2)

Publication Number Publication Date
RU93004985A true RU93004985A (en) 1995-09-27
RU2089505C1 RU2089505C1 (en) 1997-09-10

Family

ID=24268756

Family Applications (1)

Application Number Title Priority Date Filing Date
RU9193004985A RU2089505C1 (en) 1990-08-15 1991-08-09 Method of synthesis of anhydrous niobium or tantalum pentafluoride

Country Status (15)

Country Link
US (1) US5091168A (en)
EP (1) EP0543909B1 (en)
JP (1) JP3335625B2 (en)
KR (1) KR930701347A (en)
CN (1) CN1059320A (en)
AU (1) AU8493091A (en)
BR (1) BR9106742A (en)
CA (1) CA2088781C (en)
DE (1) DE69122874T2 (en)
ES (1) ES2094232T3 (en)
MX (1) MX9100652A (en)
RU (1) RU2089505C1 (en)
TW (1) TW221801B (en)
WO (1) WO1992003382A1 (en)
ZA (1) ZA916456B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5302766A (en) * 1993-06-03 1994-04-12 E. I. Du Pont De Nemours And Company Isomerization process
US20050123459A1 (en) * 2002-02-27 2005-06-09 Hirohisa Kikuyama Method of purifying niobium compound and/or tantalum compound
US6787678B1 (en) * 2003-12-11 2004-09-07 Honeywell International Inc. Method of removing water from hydrofluorocarbon manufacturing processes
BR112012025006B1 (en) * 2010-04-01 2021-07-13 The South African Nuclear Energy Corporation Limited TREATMENT OF COMPOUNDS CONTAINING TANTALUM AND/OR NIOBIUM
CN102887840B (en) * 2011-07-23 2015-04-22 联化科技股份有限公司 Method for preparing low-water-content solid methyl disulfonic acid through taking methylene chloride as raw material
RU2482064C1 (en) * 2011-10-06 2013-05-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" Method of producing niobium or tantalum pentafluoride
CN106517328B (en) * 2016-11-30 2018-01-19 湖南省华京粉体材料有限公司 The method and apparatus that a kind of one-step method prepares high-purity low metal impurity tantalic chloride
CN107473267A (en) * 2017-09-13 2017-12-15 中国矿业大学 Economical, safe and environment-friendly Nb3O7Preparation method of F nano material
CN116143171A (en) * 2023-02-17 2023-05-23 中船(邯郸)派瑞特种气体股份有限公司 Tantalum pentafluoride preparation device and preparation method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025459A (en) * 1975-05-14 1977-05-24 Exxon Research And Engineering Company Noble metal hydrogenation catalysts promoted by fluoride containing acids
AU1885476A (en) * 1975-11-04 1978-04-27 Exxon Research Engineering Co Regeneration of metal halide catalysts via hydrogenation
US4069268A (en) * 1975-11-04 1978-01-17 Exxon Research & Engineering Co. Regeneration of metal halide catalysts via halogenation
US4065405A (en) * 1976-12-03 1977-12-27 Exxon Research And Engineering Company Recovery of tantalum and/or niobium pentafluorides from a hydrocarbon conversion catalyst
US4124692A (en) * 1977-12-27 1978-11-07 Exxon Research & Engineering Co. Preparation of anhydrous TaF5
US4469804A (en) * 1983-09-23 1984-09-04 Shell Oil Company Niobium or tantalum/halogen-containing catalyst regeneration process
US4752454A (en) * 1984-12-27 1988-06-21 Hughes Aircraft Company Process for the preparation of ultrapure active metal fluorides
WO1986004049A1 (en) * 1984-12-27 1986-07-17 Hughes Aircraft Company Process for the preparation of ultrapure heavy metal fluorides
US4678769A (en) * 1985-08-05 1987-07-07 Shell Oil Company Apparatus for catalyst preparation by reactive sublimation

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