WO2005005673A3 - Method for preparing high-purity germanium hydride - Google Patents

Method for preparing high-purity germanium hydride Download PDF

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Publication number
WO2005005673A3
WO2005005673A3 PCT/EP2004/007389 EP2004007389W WO2005005673A3 WO 2005005673 A3 WO2005005673 A3 WO 2005005673A3 EP 2004007389 W EP2004007389 W EP 2004007389W WO 2005005673 A3 WO2005005673 A3 WO 2005005673A3
Authority
WO
WIPO (PCT)
Prior art keywords
germanium hydride
germanium
hydride
contaminants
aqueous
Prior art date
Application number
PCT/EP2004/007389
Other languages
French (fr)
Other versions
WO2005005673A2 (en
Inventor
Vladimir Michailov Vorotyntsev
Original Assignee
Linde Ag
Vladimir Michailov Vorotyntsev
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 Linde Ag, Vladimir Michailov Vorotyntsev filed Critical Linde Ag
Priority to EP04763110A priority Critical patent/EP1654400A2/en
Priority to JP2006518126A priority patent/JP2007527467A/en
Publication of WO2005005673A2 publication Critical patent/WO2005005673A2/en
Publication of WO2005005673A3 publication Critical patent/WO2005005673A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B41/00—Obtaining germanium
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Abstract

Germanium hydride is prepared by electrolysis of an aqueous-alkaline solution, containing germanium dioxide in a concentration of from not less than 40 g/l to the solubility limit, at a nickel cathode in a diaphragm cell at a current density of 1.0-1.5 A/ cm2 and a temperature no higher than 65°C, first passing an electrical current through the aqueous-alkaline solution for the time needed to achieve the minimum possible content of contaminants limiting for germanium hydride. For more thorough purification, the isolated germanium hydride is purified by the membrane method. The technical result is preparation of germanium hydride in which the total content of the contaminants SiH4, AsH3, PH3, H2S, CH4, Fe, Ni, Al, Ca, Mg, etc. is not more than 1.10-6% - 1.10-7%, which is acceptable for comparatively wide fields of practical application. The use of the membrane method ensures removal from the germanium hydride of suspended particles with a size of 0.05 µm to a level of less than 5.5.10-3 particles/mole, making it suitable in such fields as, for example, optics and laser engineering. The productivity of the method is 40-50 g/hour. 2 main claims, 8 dependent claims, 1 example.
PCT/EP2004/007389 2003-07-08 2004-07-06 Method for preparing high-purity germanium hydride WO2005005673A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04763110A EP1654400A2 (en) 2003-07-08 2004-07-06 Method for preparing high-purity germanium hydride
JP2006518126A JP2007527467A (en) 2003-07-08 2004-07-06 Production method of high purity germanium hydride

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2003120999 2003-07-08
RU2003120999/15A RU2230830C1 (en) 2003-07-08 2003-07-08 High-purity germanium hydride preparation method

Publications (2)

Publication Number Publication Date
WO2005005673A2 WO2005005673A2 (en) 2005-01-20
WO2005005673A3 true WO2005005673A3 (en) 2005-04-21

Family

ID=32847080

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/007389 WO2005005673A2 (en) 2003-07-08 2004-07-06 Method for preparing high-purity germanium hydride

Country Status (6)

Country Link
EP (1) EP1654400A2 (en)
JP (1) JP2007527467A (en)
CN (1) CN1820093A (en)
RU (1) RU2230830C1 (en)
TW (1) TW200600613A (en)
WO (1) WO2005005673A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8021536B2 (en) 2006-04-13 2011-09-20 Air Products And Chemical, Inc. Method and apparatus for achieving maximum yield in the electrolytic preparation of group IV and V hydrides
CN101687651B (en) * 2007-03-30 2013-04-24 斯伯恩特私人有限公司 Catalytic hydrogenation
US20090159454A1 (en) 2007-12-20 2009-06-25 Air Products And Chemicals, Inc. Divided electrochemical cell and low cost high purity hydride gas production process
US20100183500A1 (en) * 2009-01-17 2010-07-22 Henry Lee Germane gas production from germanium byproducts or impure germanium compounds
CN101723326B (en) * 2009-12-18 2011-08-31 浙江理工大学 Preparation method of germane
US8361303B2 (en) 2010-09-02 2013-01-29 Air Products And Chemicals, Inc. Electrodes for electrolytic germane process
KR101250092B1 (en) * 2012-06-13 2013-04-03 오씨아이머티리얼즈 주식회사 Apparatus for preparing germane gas and the method for preparing mono germane gas using the same
US9174853B2 (en) * 2013-12-06 2015-11-03 Gelest Technologies, Inc. Method for producing high purity germane by a continuous or semi-continuous process
KR20190140026A (en) * 2017-05-19 2019-12-18 쇼와 덴코 가부시키가이샤 How to make germane electrochemically
JP7030115B2 (en) * 2017-05-19 2022-03-04 昭和電工株式会社 How to electrochemically produce Germanic
JP7030114B2 (en) * 2017-05-19 2022-03-04 昭和電工株式会社 How to electrochemically produce Germanic
US11091374B1 (en) 2019-09-28 2021-08-17 Ge Solartech, LLC Method to produce high purity germane from germanium dioxide or impure germanium compounds

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB794641A (en) * 1954-04-15 1958-05-07 Siemens Ag Improvements in or relating to processes for the production of pure germanium and silicon
US2988427A (en) * 1957-07-17 1961-06-13 Kali Chemie Ag Method for the purification of hydrides of silicon and germanium group of the periodic system
RU2071993C1 (en) * 1992-11-10 1997-01-20 Институт химии высокочистых веществ РАН Method of germanium hydride producing
US6080297A (en) * 1996-12-06 2000-06-27 Electron Transfer Technologies, Inc. Method and apparatus for constant composition delivery of hydride gases for semiconductor processing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1732697A1 (en) * 1990-01-19 1995-10-27 Институт химии высокочистых веществ АН СССР Method of synthesis of germanium hydride

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB794641A (en) * 1954-04-15 1958-05-07 Siemens Ag Improvements in or relating to processes for the production of pure germanium and silicon
US2988427A (en) * 1957-07-17 1961-06-13 Kali Chemie Ag Method for the purification of hydrides of silicon and germanium group of the periodic system
RU2071993C1 (en) * 1992-11-10 1997-01-20 Институт химии высокочистых веществ РАН Method of germanium hydride producing
US6080297A (en) * 1996-12-06 2000-06-27 Electron Transfer Technologies, Inc. Method and apparatus for constant composition delivery of hydride gases for semiconductor processing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KHODYAKOV A A ET AL: "EVOLUTION OF GERMANIUM HYDRIDE FROM ALKALINE SOLUTIONS BY ELECTROLYSIS", J APPL CHEM USSR MAY 1984, vol. 57, no. 5 part 1, May 1984 (1984-05-01), pages 933 - 936, XP009040128 *

Also Published As

Publication number Publication date
EP1654400A2 (en) 2006-05-10
JP2007527467A (en) 2007-09-27
RU2230830C1 (en) 2004-06-20
WO2005005673A2 (en) 2005-01-20
CN1820093A (en) 2006-08-16
TW200600613A (en) 2006-01-01

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